Release 1.16.0

This won't _also_ fix issues when an app is deployed as there isn't an exposed hook for it, but it should fix many other issues.

For the app deployment problem, we'll need a new hook upstream.

Refs dokku/dokku-redis#138

.circleci/config.yml

@@ -1,60 +0,0 @@
-version: 2.1
-
-commands:
-  build:
-    description: "run the build"
-    parameters:
-      python_version:
-        type: string
-        default: "3.7.0"
-    steps:
-      - checkout
-      - run: pyenv global << parameters.python_version >>
-      - run: make setup
-      - run: sudo sysctl -w vm.max_map_count=262144
-      - run:
-          command: |
-            make generate
-            if ! git diff --quiet README.md; then
-              echo "Please run `make generate`"
-              git status --short
-              git --no-pager diff README.md
-              exit 1
-            fi
-      - run: make test
-      - store_artifacts:
-          path: build
-          destination: build
-      - store_artifacts:
-          path: tmp/test-results
-          destination: test-results
-      - store_test_results:
-          path: tmp/test-results
-
-executors:
-  machine:
-    machine:
-      docker_layer_caching: false
-      image: ubuntu-1604:201903-01
-
-jobs:
-  build-master:
-    environment:
-      DOKKU_VERSION: master
-    executor: machine
-    steps:
-      - build
-
-  build-version:
-    environment:
-      DOKKU_VERSION: v0.19.0
-    executor: machine
-    steps:
-      - build
-
-workflows:
-  version: 2
-  build:
-    jobs:
-      - "build-master"
-      - "build-version"

.devcontainer/20_init_plugin

@@ -0,0 +1,24 @@
+#!/bin/bash
+set -eo pipefail
+
+log-info() {
+  declare desc="Log info formatter"
+  echo "    $*" 1>&2
+}
+
+log-fail() {
+  declare desc="Log fail formatter"
+  echo "!   $*" 1>&2
+  exit 1
+}
+
+main() {
+  dokku plugin:install
+
+  # built in the Dockerfile
+  PLUGIN_NAME="$(source /tmp/.env && echo "$PLUGIN_NAME")"
+  PLUGIN_VARIABLE="$(source /tmp/.env && echo "$PLUGIN_VARIABLE")"
+  echo "export ${PLUGIN_VARIABLE}_HOST_ROOT=${SERVICE_HOST_ROOT}/$PLUGIN_NAME" > /etc/default/dokku
+}
+
+main "$@"

.devcontainer/Dockerfile

@@ -0,0 +1,26 @@
+FROM dokku/dokku:latest
+
+RUN apt-get update
+RUN apt-get install --no-install-recommends -y build-essential file nano && \
+  apt-get clean autoclean && \
+  apt-get autoremove --yes && \
+  rm -rf /var/lib/apt/lists/* && \
+  mkdir -p /mnt/dokku/home/dokku /mnt/dokku/var/lib/dokku/config /mnt/dokku/var/lib/dokku/data /mnt/dokku/var/lib/dokku/services && \
+  chown -R dokku:dokku /mnt/dokku/home/dokku /mnt/dokku/var/lib/dokku/config /mnt/dokku/var/lib/dokku/data /mnt/dokku/var/lib/dokku/services && \
+  echo "dokku.me" > /home/dokku/VHOST
+
+ADD https://raw.githubusercontent.com/dokku/dokku/master/tests/dhparam.pem /mnt/dokku/etc/nginx/dhparam.pem
+
+COPY .devcontainer/20_init_plugin /etc/my_init.d/20_init_plugin
+COPY .devcontainer/bin/ /usr/local/bin/
+
+COPY . .
+
+RUN source /tmp/config && \
+  echo "export ${PLUGIN_DISABLE_PULL_VARIABLE}=true" > /tmp/.env && \
+  echo "export PLUGIN_NAME=${PLUGIN_COMMAND_PREFIX}" >> /tmp/.env && \
+  echo "export PLUGIN_VARIABLE=${PLUGIN_VARIABLE}" >> /tmp/.env
+
+RUN source /tmp/.env && \
+  dokku plugin:install file:///tmp --name $PLUGIN_NAME && \
+  make ci-dependencies

.devcontainer/bin/copy-file

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+main() {
+  PLUGIN_NAME="$(source /tmp/.env && echo "$PLUGIN_NAME")"
+  cp "$1" "/var/lib/dokku/plugins/enabled/$PLUGIN_NAME/$1"
+}
+
+main "$@"

.devcontainer/devcontainer.json

@@ -0,0 +1,16 @@
+{
+  "build": {
+    "dockerfile": "Dockerfile",
+    "context": ".."
+  },
+  "containerEnv": {
+    "SERVICE_HOST_ROOT": "${localWorkspaceFolder}/tmp/data"
+  },
+  "initializeCommand": ["mkdir", "-p", "tmp/data"],
+  "mounts": [
+    "source=/var/run/docker.sock,target=/var/run/docker.sock,type=bind",
+    "source=${localWorkspaceFolder}/tmp/data/,target=/var/lib/dokku/services/,type=bind"
+  ],
+  "overrideCommand": false,
+  "runArgs": ["--init"]
+}

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/ci.yml

@@ -0,0 +1,100 @@
+---
+name: CI
+
+# yamllint disable-line rule:truthy
+on:
+  pull_request:
+    branches:
+      - '*'
+  push:
+    branches:
+      - master
+
+jobs:
+  unit-tests-master:
+    name: unit-tests
+    runs-on: ubuntu-18.04
+    strategy:
+      fail-fast: true
+    env:
+      DOKKU_VERSION: master
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-python@v2
+        with:
+          python-version: '3.7.x'
+
+      - run: make setup
+
+      - run: sudo sysctl -w vm.max_map_count=262144
+
+      - run: |
+          git fetch -q origin master
+          changed=$(git --no-pager diff --name-only $GITHUB_SHA..origin/master)
+          if [ $changed = "Dockerfile" ]; then
+            echo "Please run 'make generate' to update the image version in the README.md"
+          else
+            make generate
+            if ! git diff --quiet README.md; then
+              echo "Please run 'make generate'"
+              git status --short
+              git --no-pager diff README.md
+              exit 1
+            fi
+          fi
+
+      - run: make test
+
+      - uses: actions/upload-artifact@v2
+        if: failure()
+        with:
+          name: tmp/test-results
+          path: test-results
+
+  unit-tests-0_19_0:
+    name: unit-tests-0.19.0
+    runs-on: ubuntu-18.04
+    strategy:
+      fail-fast: true
+    env:
+      DOKKU_TAG: v0.19.0
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-python@v2
+        with:
+          python-version: '3.7.x'
+
+      - run: make setup
+
+      - run: sudo sysctl -w vm.max_map_count=262144
+
+      - run: |
+          git fetch -q origin master
+          changed=$(git --no-pager diff --name-only $GITHUB_SHA..origin/master)
+          if [ $changed = "Dockerfile" ]; then
+            echo "Please run 'make generate' to update the image version in the README.md"
+          else
+            make generate
+            if ! git diff --quiet README.md; then
+              echo "Please run 'make generate'"
+              git status --short
+              git --no-pager diff README.md
+              exit 1
+            fi
+          fi
+
+      - run: make test
+
+      - uses: actions/upload-artifact@v2
+        if: failure()
+        with:
+          name: tmp/test-results
+          path: test-results

.gitignore

@@ -1,2 +1,3 @@
 /tmp
 .vagrant
+bootstrap.sh

Dockerfile

@@ -0,0 +1 @@
+FROM postgres:13.4

Makefile

@@ -11,7 +11,7 @@ ifneq ($(shell bats --version >/dev/null 2>&1 ; echo $$?),0)
 	brew install bats-core
 endif
 else
-	git clone https://github.com/josegonzalez/bats-core.git /tmp/bats
+	git clone https://github.com/bats-core/bats-core.git /tmp/bats
 	cd /tmp/bats && sudo ./install.sh /usr/local
 	rm -rf /tmp/bats
 endif
@@ -63,7 +63,7 @@ unit-tests:
 	@echo running unit tests...
 	@mkdir -p tmp/test-results/bats
 	@cd tests && echo "executing tests: $(shell cd tests ; ls *.bats | xargs)"
-	cd tests && bats --formatter bats-format-junit -e -T -o ../tmp/test-results/bats *.bats
+	cd tests && bats --report-formatter junit --timing -o ../tmp/test-results/bats *.bats
 
 tmp/xunit-reader:
 	mkdir -p tmp
@@ -71,28 +71,15 @@ tmp/xunit-reader:
 	tar xf tmp/xunit-reader.tgz -C tmp
 	chmod +x tmp/xunit-reader
 
-tmp/xunit-to-github:
-	mkdir -p tmp
-	curl -o tmp/xunit-to-github.tgz -sL https://github.com/josegonzalez/go-xunit-to-github/releases/download/v$(XUNIT_TO_GITHUB_VERSION)/xunit-to-github_$(XUNIT_TO_GITHUB_VERSION)_$(SYSTEM_NAME)_$(HARDWARE).tgz
-	tar xf tmp/xunit-to-github.tgz -C tmp
-	chmod +x tmp/xunit-to-github
-
 setup:
 	bash tests/setup.sh
 	$(MAKE) ci-dependencies
 
 test: lint unit-tests
 
-report: tmp/xunit-reader tmp/xunit-to-github
+report: tmp/xunit-reader
 	tmp/xunit-reader -p 'tmp/test-results/bats/*.xml'
 	tmp/xunit-reader -p 'tmp/test-results/shellcheck/*.xml'
-ifdef TRAVIS_REPO_SLUG
-ifdef GITHUB_ACCESS_TOKEN
-ifneq ($(TRAVIS_PULL_REQUEST),false)
-	tmp/xunit-to-github --skip-ok --job-url "$(TRAVIS_JOB_WEB_URL)" --pull-request-id "$(TRAVIS_PULL_REQUEST)" --repository-slug "$(TRAVIS_REPO_SLUG)" --title "DOKKU_VERSION=$(DOKKU_VERSION)" tmp/test-results/bats tmp/test-results/shellcheck
-endif
-endif
-endif
 
 .PHONY: clean
 clean:

README.md

@@ -1,16 +1,16 @@
-# dokku postgres [![Build Status](https://img.shields.io/circleci/project/github/dokku/dokku-postgres.svg?branch=master&style=flat-square "Build Status")](https://circleci.com/gh/dokku/dokku-postgres/tree/master) [![IRC Network](https://img.shields.io/badge/irc-freenode-blue.svg?style=flat-square "IRC Freenode")](https://webchat.freenode.net/?channels=dokku)
+# dokku postgres [![Build Status](https://img.shields.io/github/workflow/status/dokku/dokku-postgres/CI/master?style=flat-square "Build Status")](https://github.com/dokku/dokku-postgres/actions/workflows/ci.yml?query=branch%3Amaster) [![IRC Network](https://img.shields.io/badge/irc-libera-blue.svg?style=flat-square "IRC Libera")](https://webchat.libera.chat/?channels=dokku)
 
-Official postgres plugin for dokku. Currently defaults to installing [postgres 11.6](https://hub.docker.com/_/postgres/).
+Official postgres plugin for dokku. Currently defaults to installing [postgres 13.4](https://hub.docker.com/_/postgres/).
 
 ## Requirements
 
-- dokku 0.12.x+
+- dokku 0.19.x+
 - docker 1.8.x
 
 ## Installation
 
 ```shell
-# on 0.12.x+
+# on 0.19.x+
 sudo dokku plugin:install https://github.com/dokku/dokku-postgres.git postgres
 ```
 
@@ -18,14 +18,14 @@ sudo dokku plugin:install https://github.com/dokku/dokku-postgres.git postgres
 
 ```
 postgres:app-links <app>                           # list all postgres service links for a given app
-postgres:backup <service> <bucket-name> [--use-iam] # creates a backup of the postgres service to an existing s3 bucket
+postgres:backup <service> <bucket-name> [--use-iam] # create a backup of the postgres service to an existing s3 bucket
-postgres:backup-auth <service> <aws-access-key-id> <aws-secret-access-key> <aws-default-region> <aws-signature-version> <endpoint-url> # sets up authentication for backups on the postgres service
+postgres:backup-auth <service> <aws-access-key-id> <aws-secret-access-key> <aws-default-region> <aws-signature-version> <endpoint-url> # set up authentication for backups on the postgres service
-postgres:backup-deauth <service>                   # removes backup authentication for the postgres service
+postgres:backup-deauth <service>                   # remove backup authentication for the postgres service
-postgres:backup-schedule <service> <schedule> <bucket-name> [--use-iam] # schedules a backup of the postgres service
+postgres:backup-schedule <service> <schedule> <bucket-name> [--use-iam] # schedule a backup of the postgres service
 postgres:backup-schedule-cat <service>             # cat the contents of the configured backup cronfile for the service
-postgres:backup-set-encryption <service> <passphrase> # sets encryption for all future backups of postgres service
+postgres:backup-set-encryption <service> <passphrase> # set encryption for all future backups of postgres service
-postgres:backup-unschedule <service>               # unschedules the backup of the postgres service
+postgres:backup-unschedule <service>               # unschedule the backup of the postgres service
-postgres:backup-unset-encryption <service>         # unsets encryption for future backups of the postgres service
+postgres:backup-unset-encryption <service>         # unset encryption for future backups of the postgres service
 postgres:clone <service> <new-service> [--clone-flags...] # create container <new-name> then copy data from <name> into <new-name>
 postgres:connect <service>                         # connect to the service via the postgres connection tool
 postgres:create <service> [--create-flags...]      # create a postgres service
@@ -33,7 +33,7 @@ postgres:destroy <service> [-f|--force]            # delete the postgres service
 postgres:enter <service>                           # enter or run a command in a running postgres service container
 postgres:exists <service>                          # check if the postgres service exists
 postgres:export <service>                          # export a dump of the postgres service database
-postgres:expose <service> <ports...>               # expose a postgres service on custom port if provided (random port otherwise)
+postgres:expose <service> <ports...>               # expose a postgres service on custom host:port if provided (random port on the 0.0.0.0 interface if otherwise unspecified)
 postgres:import <service>                          # import a dump into the postgres service database
 postgres:info <service> [--single-info-flag]       # print the service information
 postgres:link <service> <app> [--link-flags...]    # link the postgres service to the app
@@ -52,7 +52,7 @@ postgres:upgrade <service> [--upgrade-flags...]    # upgrade service <service> t
 
 ## Usage
 
-Help for any commands can be displayed by specifying the command as an argument to postgres:help. Please consult the `postgres:help` command for any undocumented commands.
+Help for any commands can be displayed by specifying the command as an argument to postgres:help. Plugin help output in conjunction with any files in the `docs/` folder is used to generate the plugin documentation. Please consult the `postgres:help` command for any undocumented commands.
 
 ### Basic Usage
 
@@ -65,31 +65,40 @@ dokku postgres:create <service> [--create-flags...]
 
 flags:
 
+- `-c|--config-options "--args --go=here"`: extra arguments to pass to the container create command (default: `None`)
 - `-C|--custom-env "USER=alpha;HOST=beta"`: semi-colon delimited environment variables to start the service with
 - `-i|--image IMAGE`: the image name to start the service with
 - `-I|--image-version IMAGE_VERSION`: the image version to start the service with
+- `-m|--memory MEMORY`: container memory limit (default: unlimited)
 - `-p|--password PASSWORD`: override the user-level service password
 - `-r|--root-password PASSWORD`: override the root-level service password
+- `-s|--shm-size SHM_SIZE`: override shared memory size for postgres docker container
 
-Create a postgres service named lolipop:
+Create a postgres service named lollipop:
 
 ```shell
-dokku postgres:create lolipop
+dokku postgres:create lollipop
 ```
 
 You can also specify the image and image version to use for the service. It *must* be compatible with the postgres image.
 
 ```shell
-export DATABASE_IMAGE="postgres"
+export POSTGRES_IMAGE="postgres"
-export DATABASE_IMAGE_VERSION="${PLUGIN_IMAGE_VERSION}"
+export POSTGRES_IMAGE_VERSION="${PLUGIN_IMAGE_VERSION}"
-dokku postgres:create lolipop
+dokku postgres:create lollipop
 ```
 
 You can also specify custom environment variables to start the postgres service in semi-colon separated form.
 
 ```shell
-export DATABASE_CUSTOM_ENV="USER=alpha;HOST=beta"
+export POSTGRES_CUSTOM_ENV="USER=alpha;HOST=beta"
-dokku postgres:create lolipop
+dokku postgres:create lollipop
+```
+
+Official Postgres docker images does not include postgis extension (amongst others). The following example creates a new postgres service using `postgis/postgis:13-3.1` image, which includes the `postgis` extension.
+
+```shell
+dokku postgres:create postgis-database --image "postgis/postgis" --image-version "13-3.1"
 ```
 
 ### print the service information
@@ -115,22 +124,22 @@ flags:
 Get connection information as follows:
 
 ```shell
-dokku postgres:info lolipop
+dokku postgres:info lollipop
 ```
 
 You can also retrieve a specific piece of service info via flags:
 
 ```shell
-dokku postgres:info lolipop --config-dir
+dokku postgres:info lollipop --config-dir
-dokku postgres:info lolipop --data-dir
+dokku postgres:info lollipop --data-dir
-dokku postgres:info lolipop --dsn
+dokku postgres:info lollipop --dsn
-dokku postgres:info lolipop --exposed-ports
+dokku postgres:info lollipop --exposed-ports
-dokku postgres:info lolipop --id
+dokku postgres:info lollipop --id
-dokku postgres:info lolipop --internal-ip
+dokku postgres:info lollipop --internal-ip
-dokku postgres:info lolipop --links
+dokku postgres:info lollipop --links
-dokku postgres:info lolipop --service-root
+dokku postgres:info lollipop --service-root
-dokku postgres:info lolipop --status
+dokku postgres:info lollipop --status
-dokku postgres:info lolipop --version
+dokku postgres:info lollipop --version
 ```
 
 ### list all postgres services
@@ -160,13 +169,13 @@ flags:
 You can tail logs for a particular service:
 
 ```shell
-dokku postgres:logs lolipop
+dokku postgres:logs lollipop
 ```
 
 By default, logs will not be tailed, but you can do this with the --tail flag:
 
 ```shell
-dokku postgres:logs lolipop --tail
+dokku postgres:logs lollipop --tail
 ```
 
 ### link the postgres service to the app
@@ -181,32 +190,32 @@ flags:
 - `-a|--alias "BLUE_DATABASE"`: an alternative alias to use for linking to an app via environment variable
 - `-q|--querystring "pool=5"`: ampersand delimited querystring arguments to append to the service link
 
-A postgres service can be linked to a container. This will use native docker links via the docker-options plugin. Here we link it to our 'playground' app. 
+A postgres service can be linked to a container. This will use native docker links via the docker-options plugin. Here we link it to our `playground` app.
 
 > NOTE: this will restart your app
 
 ```shell
-dokku postgres:link lolipop playground
+dokku postgres:link lollipop playground
 ```
 
 The following environment variables will be set automatically by docker (not on the app itself, so they won’t be listed when calling dokku config):
 
 ```
-DOKKU_DATABASE_LOLIPOP_NAME=/lolipop/DATABASE
+DOKKU_POSTGRES_LOLLIPOP_NAME=/lollipop/DATABASE
-DOKKU_DATABASE_LOLIPOP_PORT=tcp://172.17.0.1:5432
+DOKKU_POSTGRES_LOLLIPOP_PORT=tcp://172.17.0.1:5432
-DOKKU_DATABASE_LOLIPOP_PORT_5432_TCP=tcp://172.17.0.1:5432
+DOKKU_POSTGRES_LOLLIPOP_PORT_5432_TCP=tcp://172.17.0.1:5432
-DOKKU_DATABASE_LOLIPOP_PORT_5432_TCP_PROTO=tcp
+DOKKU_POSTGRES_LOLLIPOP_PORT_5432_TCP_PROTO=tcp
-DOKKU_DATABASE_LOLIPOP_PORT_5432_TCP_PORT=5432
+DOKKU_POSTGRES_LOLLIPOP_PORT_5432_TCP_PORT=5432
-DOKKU_DATABASE_LOLIPOP_PORT_5432_TCP_ADDR=172.17.0.1
+DOKKU_POSTGRES_LOLLIPOP_PORT_5432_TCP_ADDR=172.17.0.1
 ```
 
 The following will be set on the linked application by default:
 
 ```
-DATABASE_URL=postgres://lolipop:SOME_PASSWORD@dokku-postgres-lolipop:5432/lolipop
+DATABASE_URL=postgres://lollipop:SOME_PASSWORD@dokku-postgres-lollipop:5432/lollipop
 ```
 
-The host exposed here only works internally in docker containers. If you want your container to be reachable from outside, you should use the 'expose' subcommand. Another service can be linked to your app:
+The host exposed here only works internally in docker containers. If you want your container to be reachable from outside, you should use the `expose` subcommand. Another service can be linked to your app:
 
 ```shell
 dokku postgres:link other_service playground
@@ -216,13 +225,13 @@ It is possible to change the protocol for `DATABASE_URL` by setting the environm
 
 ```shell
 dokku config:set playground POSTGRES_DATABASE_SCHEME=postgres2
-dokku postgres:link lolipop playground
+dokku postgres:link lollipop playground
 ```
 
 This will cause `DATABASE_URL` to be set as:
 
 ```
-postgres2://lolipop:SOME_PASSWORD@dokku-postgres-lolipop:5432/lolipop
+postgres2://lollipop:SOME_PASSWORD@dokku-postgres-lollipop:5432/lollipop
 ```
 
 ### unlink the postgres service from the app
@@ -237,7 +246,7 @@ You can unlink a postgres service:
 > NOTE: this will restart your app and unset related environment variables
 
 ```shell
-dokku postgres:unlink lolipop playground
+dokku postgres:unlink lollipop playground
 ```
 
 ### Service Lifecycle
@@ -253,8 +262,10 @@ dokku postgres:connect <service>
 
 Connect to the service via the postgres connection tool:
 
+> NOTE: disconnecting from ssh while running this command may leave zombie processes due to moby/moby#9098
+
 ```shell
-dokku postgres:connect lolipop
+dokku postgres:connect lollipop
 ```
 
 ### enter or run a command in a running postgres service container
@@ -266,17 +277,19 @@ dokku postgres:enter <service>
 
 A bash prompt can be opened against a running service. Filesystem changes will not be saved to disk.
 
+> NOTE: disconnecting from ssh while running this command may leave zombie processes due to moby/moby#9098
+
 ```shell
-dokku postgres:enter lolipop
+dokku postgres:enter lollipop
 ```
 
 You may also run a command directly against the service. Filesystem changes will not be saved to disk.
 
 ```shell
-dokku postgres:enter lolipop touch /tmp/test
+dokku postgres:enter lollipop touch /tmp/test
 ```
 
-### expose a postgres service on custom port if provided (random port otherwise)
+### expose a postgres service on custom host:port if provided (random port on the 0.0.0.0 interface if otherwise unspecified)
 
 ```shell
 # usage
@@ -286,7 +299,13 @@ dokku postgres:expose <service> <ports...>
 Expose the service on the service's normal ports, allowing access to it from the public interface (`0.0.0.0`):
 
 ```shell
-dokku postgres:expose lolipop 5432
+dokku postgres:expose lollipop 5432
+```
+
+Expose the service on the service's normal ports, with the first on a specified ip adddress (127.0.0.1):
+
+```shell
+dokku postgres:expose lollipop 127.0.0.1:5432
 ```
 
 ### unexpose a previously exposed postgres service
@@ -299,7 +318,7 @@ dokku postgres:unexpose <service>
 Unexpose the service, removing access to it from the public interface (`0.0.0.0`):
 
 ```shell
-dokku postgres:unexpose lolipop
+dokku postgres:unexpose lollipop
 ```
 
 ### promote service <service> as DATABASE_URL in <app>
@@ -328,7 +347,7 @@ This will replace `DATABASE_URL` with the url from other_service and generate an
 ```
 DATABASE_URL=postgres://other_service:ANOTHER_PASSWORD@dokku-postgres-other-service:5432/other_service
 DOKKU_DATABASE_BLUE_URL=postgres://other_service:ANOTHER_PASSWORD@dokku-postgres-other-service:5432/other_service
-DOKKU_DATABASE_SILVER_URL=postgres://lolipop:SOME_PASSWORD@dokku-postgres-lolipop:5432/lolipop
+DOKKU_DATABASE_SILVER_URL=postgres://lollipop:SOME_PASSWORD@dokku-postgres-lollipop:5432/lollipop
 ```
 
 ### start a previously stopped postgres service
@@ -341,7 +360,7 @@ dokku postgres:start <service>
 Start the service:
 
 ```shell
-dokku postgres:start lolipop
+dokku postgres:start lollipop
 ```
 
 ### stop a running postgres service
@@ -354,7 +373,7 @@ dokku postgres:stop <service>
 Stop the service and the running container:
 
 ```shell
-dokku postgres:stop lolipop
+dokku postgres:stop lollipop
 ```
 
 ### graceful shutdown and restart of the postgres service container
@@ -367,7 +386,7 @@ dokku postgres:restart <service>
 Restart the service:
 
 ```shell
-dokku postgres:restart lolipop
+dokku postgres:restart lollipop
 ```
 
 ### upgrade service <service> to the specified versions
@@ -379,15 +398,48 @@ dokku postgres:upgrade <service> [--upgrade-flags...]
 
 flags:
 
+- `-c|--config-options "--args --go=here"`: extra arguments to pass to the container create command (default: `None`)
 - `-C|--custom-env "USER=alpha;HOST=beta"`: semi-colon delimited environment variables to start the service with
 - `-i|--image IMAGE`: the image name to start the service with
 - `-I|--image-version IMAGE_VERSION`: the image version to start the service with
 - `-R|--restart-apps "true"`: whether to force an app restart
+- `-s|--shm-size SHM_SIZE`: override shared memory size for postgres docker container
 
 You can upgrade an existing service to a new image or image-version:
 
 ```shell
-dokku postgres:upgrade lolipop
+dokku postgres:upgrade lollipop
+```
+
+Postgres does not handle upgrading data for major versions automatically (eg. 11 => 12). Upgrades should be done manually. Users are encouraged to upgrade to the latest minor release for their postgres version before performing a major upgrade.
+
+While there are many ways to upgrade a postgres database, for safety purposes, it is recommended that an upgrade is performed by exporting the data from an existing database and importing it into a new database. This also allows testing to ensure that applications interact with the database correctly after the upgrade, and can be used in a staging environment.
+
+The following is an example of how to upgrade a postgres database named `lollipop-11` from 11.13 to 12.8.
+
+```shell
+# stop any linked apps
+dokku ps:stop linked-app
+
+# export the database contents
+dokku postgres:export lollipop-11 > /tmp/lollipop-11.export
+
+# create a new database at the desired version
+dokku postgres:create lollipop-12 --image-version 12.8
+
+# import the export file
+dokku postgres:import lollipop-12 < /tmp/lollipop-11.export
+
+# run any sql tests against the new database to verify the import went smoothly
+
+# unlink the old database from your apps
+dokku postgres:unlink lollipop-11 linked-app
+
+# link the new database to your apps
+dokku postgres:link lollipop-12 linked-app
+
+# start the linked apps again
+dokku ps:start linked-app
 ```
 
 ### Service Automation
@@ -401,7 +453,7 @@ Service scripting can be executed using the following commands:
 dokku postgres:app-links <app>
 ```
 
-List all postgres services that are linked to the 'playground' app. 
+List all postgres services that are linked to the `playground` app.
 
 ```shell
 dokku postgres:app-links playground
@@ -416,16 +468,19 @@ dokku postgres:clone <service> <new-service> [--clone-flags...]
 
 flags:
 
+- `-c|--config-options "--args --go=here"`: extra arguments to pass to the container create command (default: `None`)
 - `-C|--custom-env "USER=alpha;HOST=beta"`: semi-colon delimited environment variables to start the service with
 - `-i|--image IMAGE`: the image name to start the service with
 - `-I|--image-version IMAGE_VERSION`: the image version to start the service with
+- `-m|--memory MEMORY`: container memory limit (default: unlimited)
 - `-p|--password PASSWORD`: override the user-level service password
 - `-r|--root-password PASSWORD`: override the root-level service password
+- `-s|--shm-size SHM_SIZE`: override shared memory size for postgres docker container
 
 You can clone an existing service to a new one:
 
 ```shell
-dokku postgres:clone lolipop lolipop-2
+dokku postgres:clone lollipop lollipop-2
 ```
 
 ### check if the postgres service exists
@@ -435,10 +490,10 @@ dokku postgres:clone lolipop lolipop-2
 dokku postgres:exists <service>
 ```
 
-Here we check if the lolipop postgres service exists. 
+Here we check if the lollipop postgres service exists.
 
 ```shell
-dokku postgres:exists lolipop
+dokku postgres:exists lollipop
 ```
 
 ### check if the postgres service is linked to an app
@@ -448,10 +503,10 @@ dokku postgres:exists lolipop
 dokku postgres:linked <service> <app>
 ```
 
-Here we check if the lolipop postgres service is linked to the 'playground' app. 
+Here we check if the lollipop postgres service is linked to the `playground` app.
 
 ```shell
-dokku postgres:linked lolipop playground
+dokku postgres:linked lollipop playground
 ```
 
 ### list all apps linked to the postgres service
@@ -461,10 +516,10 @@ dokku postgres:linked lolipop playground
 dokku postgres:links <service>
 ```
 
-List all apps linked to the 'lolipop' postgres service. 
+List all apps linked to the `lollipop` postgres service.
 
 ```shell
-dokku postgres:links lolipop
+dokku postgres:links lollipop
 ```
 
 ### Data Management
@@ -481,7 +536,7 @@ dokku postgres:import <service>
 Import a datastore dump:
 
 ```shell
-dokku postgres:import lolipop < database.dump
+dokku postgres:import lollipop < data.dump
 ```
 
 ### export a dump of the postgres service database
@@ -494,13 +549,19 @@ dokku postgres:export <service>
 By default, datastore output is exported to stdout:
 
 ```shell
-dokku postgres:export lolipop
+dokku postgres:export lollipop
 ```
 
 You can redirect this output to a file:
 
 ```shell
-dokku postgres:export lolipop > lolipop.dump
+dokku postgres:export lollipop > data.dump
+```
+
+Note that the export will result in a file containing the binary postgres export data. It can be converted to plain text using `pg_restore` as follows
+
+```shell
+pg_restore data.dump -f plain.sql
 ```
 
 ### Backups
@@ -511,7 +572,7 @@ You may skip the `backup-auth` step if your dokku install is running within EC2
 
 Backups can be performed using the backup commands:
 
-### sets up authentication for backups on the postgres service
+### set up authentication for backups on the postgres service
 
 ```shell
 # usage
@@ -521,28 +582,28 @@ dokku postgres:backup-auth <service> <aws-access-key-id> <aws-secret-access-key>
 Setup s3 backup authentication:
 
 ```shell
-dokku postgres:backup-auth lolipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY
+dokku postgres:backup-auth lollipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY
 ```
 
 Setup s3 backup authentication with different region:
 
 ```shell
-dokku postgres:backup-auth lolipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY AWS_REGION
+dokku postgres:backup-auth lollipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY AWS_REGION
 ```
 
 Setup s3 backup authentication with different signature version and endpoint:
 
 ```shell
-dokku postgres:backup-auth lolipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY AWS_REGION AWS_SIGNATURE_VERSION ENDPOINT_URL
+dokku postgres:backup-auth lollipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY AWS_REGION AWS_SIGNATURE_VERSION ENDPOINT_URL
 ```
 
 More specific example for minio auth:
 
 ```shell
-dokku postgres:backup-auth lolipop MINIO_ACCESS_KEY_ID MINIO_SECRET_ACCESS_KEY us-east-1 s3v4 https://YOURMINIOSERVICE
+dokku postgres:backup-auth lollipop MINIO_ACCESS_KEY_ID MINIO_SECRET_ACCESS_KEY us-east-1 s3v4 https://YOURMINIOSERVICE
 ```
 
-### removes backup authentication for the postgres service
+### remove backup authentication for the postgres service
 
 ```shell
 # usage
@@ -552,10 +613,10 @@ dokku postgres:backup-deauth <service>
 Remove s3 authentication:
 
 ```shell
-dokku postgres:backup-deauth lolipop
+dokku postgres:backup-deauth lollipop
 ```
 
-### creates a backup of the postgres service to an existing s3 bucket
+### create a backup of the postgres service to an existing s3 bucket
 
 ```shell
 # usage
@@ -566,13 +627,19 @@ flags:
 
 - `-u|--use-iam`: use the IAM profile associated with the current server
 
-Backup the 'lolipop' service to the 'my-s3-bucket' bucket on ``AWS`:`
+Backup the `lollipop` service to the `my-s3-bucket` bucket on `AWS`:`
 
 ```shell
-dokku postgres:backup lolipop my-s3-bucket --use-iam
+dokku postgres:backup lollipop my-s3-bucket --use-iam
 ```
 
-### sets encryption for all future backups of postgres service
+Restore a backup file (assuming it was extracted via `tar -xf backup.tgz`):
+
+```shell
+dokku postgres:import lollipop < backup-folder/export
+```
+
+### set encryption for all future backups of postgres service
 
 ```shell
 # usage
@@ -582,10 +649,10 @@ dokku postgres:backup-set-encryption <service> <passphrase>
 Set the GPG-compatible passphrase for encrypting backups for backups:
 
 ```shell
-dokku postgres:backup-set-encryption lolipop
+dokku postgres:backup-set-encryption lollipop
 ```
 
-### unsets encryption for future backups of the postgres service
+### unset encryption for future backups of the postgres service
 
 ```shell
 # usage
@@ -595,10 +662,10 @@ dokku postgres:backup-unset-encryption <service>
 Unset the `GPG` encryption passphrase for backups:
 
 ```shell
-dokku postgres:backup-unset-encryption lolipop
+dokku postgres:backup-unset-encryption lollipop
 ```
 
-### schedules a backup of the postgres service
+### schedule a backup of the postgres service
 
 ```shell
 # usage
@@ -614,13 +681,13 @@ Schedule a backup:
 > 'schedule' is a crontab expression, eg. "0 3 * * *" for each day at 3am
 
 ```shell
-dokku postgres:backup-schedule lolipop "0 3 * * *" my-s3-bucket
+dokku postgres:backup-schedule lollipop "0 3 * * *" my-s3-bucket
 ```
 
 Schedule a backup and authenticate via iam:
 
 ```shell
-dokku postgres:backup-schedule lolipop "0 3 * * *" my-s3-bucket --use-iam
+dokku postgres:backup-schedule lollipop "0 3 * * *" my-s3-bucket --use-iam
 ```
 
 ### cat the contents of the configured backup cronfile for the service
@@ -633,10 +700,10 @@ dokku postgres:backup-schedule-cat <service>
 Cat the contents of the configured backup cronfile for the service:
 
 ```shell
-dokku postgres:backup-schedule-cat lolipop
+dokku postgres:backup-schedule-cat lollipop
 ```
 
-### unschedules the backup of the postgres service
+### unschedule the backup of the postgres service
 
 ```shell
 # usage
@@ -646,7 +713,7 @@ dokku postgres:backup-unschedule <service>
 Remove the scheduled backup from cron:
 
 ```shell
-dokku postgres:backup-unschedule lolipop
+dokku postgres:backup-unschedule lollipop
 ```
 
 ### Disabling `docker pull` calls

bin/generate

@@ -5,7 +5,7 @@ import os
 import re
 
 
-def compile(service, version, variable, alias, image, scheme, ports, sponsors, unimplemented, dokku_version):
+def compile(service, version, variable, alias, image, scheme, ports, sponsors, options, unimplemented, dokku_version):
     prefix = "\n\n".join([
         header(service),
         description(service, image, version),
@@ -22,7 +22,7 @@ def compile(service, version, variable, alias, image, scheme, ports, sponsors, u
                 requirements_section(dokku_version),
                 installation_section(service, dokku_version),
                 commands_section(service, variable, alias, image, scheme, ports, unimplemented),
-                usage_section(service, variable, alias, image, scheme, ports, unimplemented),
+                usage_section(service, variable, alias, image, scheme, ports, options, unimplemented),
             ]
         )
         .replace("\n\n\n\n\n", "\n")
@@ -35,8 +35,8 @@ def header(service):
     return " ".join(
         [
             f"# dokku {service}",
-            f'[![Build Status](https://img.shields.io/circleci/project/github/dokku/dokku-{service}.svg?branch=master&style=flat-square "Build Status")](https://circleci.com/gh/dokku/dokku-{service}/tree/master)',
+            f'[![Build Status](https://img.shields.io/github/workflow/status/dokku/dokku-{service}/CI/master?style=flat-square "Build Status")](https://github.com/dokku/dokku-{service}/actions/workflows/ci.yml?query=branch%3Amaster)',
-            f'[![IRC Network](https://img.shields.io/badge/irc-freenode-blue.svg?style=flat-square "IRC Freenode")](https://webchat.freenode.net/?channels=dokku)',
+            f'[![IRC Network](https://img.shields.io/badge/irc-libera-blue.svg?style=flat-square "IRC Libera")](https://webchat.libera.chat/?channels=dokku)',
         ]
     )
 
@@ -115,31 +115,31 @@ def commands_section(service, variable, alias, image, scheme, ports, unimplement
     return "\n".join(content)
 
 
-def usage_section(service, variable, alias, image, scheme, ports, unimplemented):
+def usage_section(service, variable, alias, image, scheme, ports, options, unimplemented):
     return "\n\n".join(
         [
             "## Usage",
-            f"Help for any commands can be displayed by specifying the command as an argument to {service}:help. Please consult the `{service}:help` command for any undocumented commands.",
+            f"Help for any commands can be displayed by specifying the command as an argument to {service}:help. Plugin help output in conjunction with any files in the `docs/` folder is used to generate the plugin documentation. Please consult the `{service}:help` command for any undocumented commands.",
-            usage_intro(service, variable, alias, image, scheme, ports, unimplemented),
+            usage_intro(service, variable, alias, image, scheme, ports, options, unimplemented),
-            usage_lifecycle(service, variable, alias, image, scheme, ports, unimplemented),
+            usage_lifecycle(service, variable, alias, image, scheme, ports, options, unimplemented),
-            usage_automation(service, variable, alias, image, scheme, ports, unimplemented),
+            usage_automation(service, variable, alias, image, scheme, ports, options, unimplemented),
-            usage_data_management(service, variable, alias, image, scheme, ports, unimplemented),
+            usage_data_management(service, variable, alias, image, scheme, ports, options, unimplemented),
-            usage_backup(service, variable, alias, image, scheme, ports, unimplemented),
+            usage_backup(service, variable, alias, image, scheme, ports, options, unimplemented),
-            usage_docker_pull(service, variable, alias, image, scheme, ports, unimplemented),
+            usage_docker_pull(service, variable, alias, image, scheme, ports, options, unimplemented),
         ]
     )
 
 
-def usage_intro(service, variable, alias, image, scheme, ports, unimplemented):
+def usage_intro(service, variable, alias, image, scheme, ports, options, unimplemented):
     commands = ["create", "info", "list", "logs", "link", "unlink"]
     content = ["### Basic Usage"]
 
     return fetch_commands_content(
-        service, variable, alias, image, scheme, ports, unimplemented, commands, content
+        service, variable, alias, image, scheme, ports, options, unimplemented, commands, content
     )
 
 
-def usage_lifecycle(service, variable, alias, image, scheme, ports, unimplemented):
+def usage_lifecycle(service, variable, alias, image, scheme, ports, options, unimplemented):
     commands = [
         "connect",
         "enter",
@@ -159,11 +159,11 @@ def usage_lifecycle(service, variable, alias, image, scheme, ports, unimplemente
     ]
 
     return fetch_commands_content(
-        service, variable, alias, image, scheme, ports, unimplemented, commands, content
+        service, variable, alias, image, scheme, ports, options, unimplemented, commands, content
     )
 
 
-def usage_automation(service, variable, alias, image, scheme, ports, unimplemented):
+def usage_automation(service, variable, alias, image, scheme, ports, options, unimplemented):
     commands = ["app-links", "clone", "exists", "linked", "links"]
     content = [
         "### Service Automation",
@@ -173,11 +173,11 @@ def usage_automation(service, variable, alias, image, scheme, ports, unimplement
     ]
 
     return fetch_commands_content(
-        service, variable, alias, image, scheme, ports, unimplemented, commands, content
+        service, variable, alias, image, scheme, ports, options, unimplemented, commands, content
     )
 
 
-def usage_data_management(service, variable, alias, image, scheme, ports, unimplemented):
+def usage_data_management(service, variable, alias, image, scheme, ports, options, unimplemented):
     commands = ["import", "export"]
     content = [
         "### Data Management",
@@ -187,11 +187,11 @@ def usage_data_management(service, variable, alias, image, scheme, ports, unimpl
     ]
 
     return fetch_commands_content(
-        service, variable, alias, image, scheme, ports, unimplemented, commands, content
+        service, variable, alias, image, scheme, ports, options, unimplemented, commands, content
     )
 
 
-def usage_backup(service, variable, alias, image, scheme, ports, unimplemented):
+def usage_backup(service, variable, alias, image, scheme, ports, options, unimplemented):
     commands = [
         "backup-auth",
         "backup-deauth",
@@ -214,11 +214,11 @@ def usage_backup(service, variable, alias, image, scheme, ports, unimplemented):
     ]
 
     return fetch_commands_content(
-        service, variable, alias, image, scheme, ports, unimplemented, commands, content
+        service, variable, alias, image, scheme, ports, options, unimplemented, commands, content
     )
 
 
-def usage_docker_pull(service, variable, alias, image, scheme, ports, unimplemented):
+def usage_docker_pull(service, variable, alias, image, scheme, ports, options, unimplemented):
     service_prefix = service.upper()
     return "\n".join(
         [
@@ -232,11 +232,11 @@ def usage_docker_pull(service, variable, alias, image, scheme, ports, unimplemen
 
 
 def fetch_commands_content(
-    service, variable, alias, image, scheme, ports, unimplemented, commands, content
+    service, variable, alias, image, scheme, ports, options, unimplemented, commands, content
 ):
     i = 0
     for command in commands:
-        output = command_help(command, service, variable, alias, image, scheme, ports, unimplemented)
+        output = command_help(command, service, variable, alias, image, scheme, ports, options, unimplemented)
         if output == "":
             continue
         content.append(output)
@@ -274,7 +274,7 @@ def parse_args(line):
     return " ".join(arguments)
 
 
-def command_help(command, service, variable, alias, image, scheme, ports, unimplemented):
+def command_help(command, service, variable, alias, image, scheme, ports, options, unimplemented):
     if command in unimplemented:
         return ""
 
@@ -300,12 +300,20 @@ def command_help(command, service, variable, alias, image, scheme, ports, unimpl
         content.append("flags:")
         content.append("")
     for flag in data["flags"]:
+        if "--config-options" in flag and options != "":
+            flag = f"{flag} (default: `{options}`)"
         content.append(f"- {flag}")
 
     if len(data["examples"]) > 0:
         content.append("")
         content.append(data["examples"])
 
+    doc_file = os.path.join("docs", f"{command}.md")
+    if os.path.isfile(doc_file):
+        content.append("")
+        with open(doc_file) as f:
+            content.append(f.read())
+
     return "\n" + "\n".join(content)
 
 
@@ -423,13 +431,13 @@ def command_data(command, service, variable, alias, image, scheme, ports):
 def process_sentence(sentence_lines):
     sentence_lines = " ".join(sentence_lines)
     sentences = ". ".join(
-        upperfirst(i.strip()) for i in sentence_lines.split(".")
+        upperfirst(i.strip()) for i in sentence_lines.split(". ")
     ).strip()
     if not sentences.endswith(".") and not sentences.endswith(":"):
         sentences += ":"
 
     text = []
-    for sentence in sentences.split("."):
+    for sentence in sentences.split(". "):
         parts = []
         for word in sentence.strip().split(" "):
             if word.isupper() and len(word) > 1:
@@ -444,7 +452,11 @@ def process_sentence(sentence_lines):
     text = ". ".join(text)
 
     # some cleanup
-    text = text.replace("(0. 0. 0. 0)", "(`0.0.0.0`)")
+    text = text.replace("(0.0.0.0)", "(`0.0.0.0`)")
+    text = text.replace("'", "`")
+    text = text.replace("`s", "'s")
+    text = text.replace("``", "`")
+    text = text.strip(" ")
 
     return text
 
@@ -473,13 +485,18 @@ def main():
     variable = None
     image = None
     alias = None
+    options = None
     unimplemented = []
+
+    with open("Dockerfile") as f:
+        for line in f.readlines():
+          if "FROM " in line:
+              image, version = line.split(" ")[1].split(":")
+              image = image.strip()
+              version = version.strip()
+
     with open("config") as f:
         for line in f.readlines():
-            if "IMAGE_VERSION=${" in line:
-                version = re.search('"(.+)"', line).group(1)
-            if "_IMAGE=${" in line:
-                image = re.search('"(.+)"', line).group(1)
             if "PLUGIN_COMMAND_PREFIX=" in line:
                 service = re.search('"(.+)"', line).group(1)
             if "PLUGIN_DEFAULT_ALIAS=" in line:
@@ -495,6 +512,13 @@ def main():
                 if match is not None:
                     unimplemented = [s.strip('"') for s in match.group(1).split(" ")]
 
+    with open("config") as f:
+        for line in f.readlines():
+            if f"{variable}_CONFIG_OPTIONS" in line:
+                match = re.search('"(.+)"', line)
+                if match is not None:
+                    options = match.group(1)
+
     sponsors = []
     with open("plugin.toml") as f:
         for line in f.readlines():
@@ -502,12 +526,12 @@ def main():
                 sponsors = re.search("\[([\"\w\s,_-]+)\]", line).group(1)
                 sponsors = [s.strip("\"") for s in sponsors.split(",")]
 
-    text = compile(service, version, variable, alias, image, scheme, ports, sponsors, unimplemented, "0.12.x+")
+    text = compile(service, version, variable, alias, image, scheme, ports, sponsors, options, unimplemented, "0.19.x+")
 
     base_path = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
     readme_file = os.path.join(base_path, "README.md")
     with open(readme_file, "w") as f:
-        f.write(text)
+        f.write(text + "\n")
 
 
 if __name__ == "__main__":

common-functions

@@ -4,8 +4,20 @@ set -eo pipefail
 [[ $DOKKU_TRACE ]] && set -x
 source "$PLUGIN_AVAILABLE_PATH/config/functions"
 
+add_to_links_file() {
+  declare desc="add an app to the service link file"
+  declare SERVICE="$1" APP="$2"
+  local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
+  local LINKS_FILE="$SERVICE_ROOT/LINKS"
+
+  touch "$LINKS_FILE"
+  sed -i.bak "/^$APP\$/d" "$LINKS_FILE" && rm "$LINKS_FILE.bak"
+  echo "$APP" >>"$LINKS_FILE"
+  sort "$LINKS_FILE" -u -o "$LINKS_FILE"
+}
+
 docker_ports_options() {
-  declare desc="Exports a list of exposed ports"
+  declare desc="export a list of exposed ports"
   declare PORTS=("$@")
   for ((i = 0; i < ${#PLUGIN_DATASTORE_PORTS[@]}; i++)); do
     echo -n "-p ${PORTS[i]}:${PLUGIN_DATASTORE_PORTS[i]} "
@@ -13,13 +25,13 @@ docker_ports_options() {
 }
 
 get_container_ip() {
-  declare desc="Retrieves the ip address of a container"
+  declare desc="retrieve the ip address of a container"
   declare CONTAINER_ID="$1"
   docker inspect --format '{{ .NetworkSettings.IPAddress }}' "$CONTAINER_ID" 2>/dev/null
 }
 
 get_database_name() {
-  declare desc="Retrieves a sanitized database name"
+  declare desc="retrieve a sanitized database name"
   declare SERVICE="$1"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
 
@@ -31,7 +43,7 @@ get_database_name() {
 }
 
 get_random_ports() {
-  declare desc="Retrieves N random ports"
+  declare desc="retrieve N random ports"
   declare iterations="${1:-1}"
   for ((i = 0; i < iterations; i++)); do
     local port=$RANDOM
@@ -50,19 +62,28 @@ get_random_ports() {
 }
 
 get_service_name() {
-  declare desc="Retrieves a docker service label"
+  declare desc="retrieve a docker service label"
   declare SERVICE="$1"
   echo "dokku.${PLUGIN_COMMAND_PREFIX}.$SERVICE"
 }
 
 get_url_from_config() {
-  declare desc="Retrieves a given _URL from a list of configuration variables"
+  declare desc="retrieve a given _URL from a list of configuration variables"
   declare EXISTING_CONFIG="$1" CONFIG_VAR="$2"
   echo "$EXISTING_CONFIG" | grep "$CONFIG_VAR" | sed "s/$CONFIG_VAR:\s*//" | xargs
 }
 
+in_links_file() {
+  declare desc="check if a service LINKS file contains an app"
+  declare SERVICE="$1" APP="$2"
+  local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
+  local LINKS_FILE="$SERVICE_ROOT/LINKS"
+
+  grep -qE "^$APP\$" "$LINKS_FILE"
+}
+
 is_container_status() {
-  declare desc="Returns 0 or 1 depending upon whether a given container has a certain status"
+  declare desc="return 0 or 1 depending upon whether a given container has a certain status"
   declare CID="$1" STATUS="$2"
   local TEMPLATE="{{.State.$STATUS}}"
   local CONTAINER_STATUS=$(docker inspect -f "$TEMPLATE" "$CID" 2>/dev/null || true)
@@ -90,7 +111,7 @@ is_implemented_command() {
 }
 
 is_valid_service_name() {
-  declare desc="Validates a service name"
+  declare desc="validate a service name"
   declare SERVICE="$1"
   [[ -z "$SERVICE" ]] && return 1
 
@@ -102,7 +123,7 @@ is_valid_service_name() {
 }
 
 remove_from_links_file() {
-  declare desc="Removes an app from the service link file"
+  declare desc="remove an app from the service link file"
   declare SERVICE="$1" APP="$2"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local LINKS_FILE="$SERVICE_ROOT/LINKS"
@@ -120,7 +141,7 @@ retry-docker-command() {
   local i=0 success=false
   until [ $i -ge 100 ]; do
     set +e
-    docker exec -it "$ID" sh -c "$COMMAND" 2>/dev/null
+    suppress_output docker exec "$ID" sh -c "$COMMAND"
     exit_code=$?
     set -e
     if [[ "$exit_code" == 0 ]]; then
@@ -137,7 +158,7 @@ retry-docker-command() {
 }
 
 service_alternative_alias() {
-  declare desc="Retrieves an alternative alias for a service"
+  declare desc="retrieve an alternative alias for a service"
   declare EXISTING_CONFIG="$1"
   local COLORS=(AQUA BLACK BLUE FUCHSIA GRAY GREEN LIME MAROON NAVY OLIVE PURPLE RED SILVER TEAL WHITE YELLOW)
   local ALIAS
@@ -154,7 +175,7 @@ service_alternative_alias() {
 }
 
 service_app_links() {
-  declare desc="Outputs all service links for a given app"
+  declare desc="output all service links for a given app"
   declare APP="$1"
   local SERVICE LINKED_APP
 
@@ -170,7 +191,7 @@ service_app_links() {
 }
 
 service_backup() {
-  declare desc="Creates a backup of a service to an existing s3 bucket"
+  declare desc="create a backup of a service to an existing s3 bucket"
   declare SERVICE="$1" BUCKET_NAME="$2" USE_IAM_OPTIONAL_FLAG="$3"
   local SERVICE_BACKUP_ROOT="$PLUGIN_DATA_ROOT/$SERVICE/backup"
   local BACKUP_ENCRYPTION_CONFIG_ROOT="$PLUGIN_DATA_ROOT/$SERVICE/backup-encryption"
@@ -221,8 +242,48 @@ service_backup() {
   docker run --rm $BACKUP_PARAMETERS "$PLUGIN_S3BACKUP_IMAGE"
 }
 
+service_commit_config() {
+  declare SERVICE="$1"
+  local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
+  local CONFIG_VARIABLE="${PLUGIN_VARIABLE}_CONFIG_OPTIONS"
+  local ENV_VARIABLE="${PLUGIN_VARIABLE}_CUSTOM_ENV"
+
+
+  custom_env="${!ENV_VARIABLE}"
+  [[ -n "$SERVICE_CUSTOM_ENV" ]] && custom_env="$SERVICE_CUSTOM_ENV"
+  if [[ -n $custom_env ]]; then
+    echo "$custom_env" | tr ';' "\n" >"$SERVICE_ROOT/ENV"
+  else
+    echo "" >"$SERVICE_ROOT/ENV"
+  fi
+
+  config_options="${!CONFIG_VARIABLE}"
+  [[ -n "$PLUGIN_CONFIG_OPTIONS" ]] && config_options="$PLUGIN_CONFIG_OPTIONS"
+  if [[ -n "$config_options" ]]; then
+    echo "$config_options" >"$SERVICE_ROOT/CONFIG_OPTIONS"
+  else
+    echo "" >"$SERVICE_ROOT/CONFIG_OPTIONS"
+  fi
+
+  if [[ -n "$SERVICE_MEMORY" ]]; then
+    echo "$SERVICE_MEMORY" >"$SERVICE_ROOT/SERVICE_MEMORY"
+  fi
+
+  if [[ -n "$SERVICE_SHM_SIZE" ]]; then
+    echo "$SERVICE_SHM_SIZE" >"$SERVICE_ROOT/SHM_SIZE"
+  fi
+
+  if [[ -n "$PLUGIN_IMAGE" ]]; then
+    echo "$PLUGIN_IMAGE" >"$SERVICE_ROOT/IMAGE"
+  fi
+
+  if [[ -n "$PLUGIN_IMAGE_VERSION" ]]; then
+    echo "$PLUGIN_IMAGE_VERSION" >"$SERVICE_ROOT/IMAGE_VERSION"
+  fi
+}
+
 service_backup_auth() {
-  declare desc="Sets up authentication"
+  declare desc="set up authentication"
   declare SERVICE="$1" AWS_ACCESS_KEY_ID="$2" AWS_SECRET_ACCESS_KEY="$3" AWS_DEFAULT_REGION="$4" AWS_SIGNATURE_VERSION="$5" ENDPOINT_URL="$6"
   local SERVICE_BACKUP_ROOT="$PLUGIN_DATA_ROOT/$SERVICE/backup"
 
@@ -244,7 +305,7 @@ service_backup_auth() {
 }
 
 service_backup_deauth() {
-  declare desc="Removes authentication"
+  declare desc="remove authentication"
   declare SERVICE="$1"
   local SERVICE_ROOT="${PLUGIN_DATA_ROOT}/${SERVICE}"
   local SERVICE_BACKUP_ROOT="${SERVICE_ROOT}/backup/"
@@ -282,7 +343,7 @@ service_backup_schedule_cat() {
 }
 
 service_backup_set_encryption() {
-  declare desc="Sets up backup encryption"
+  declare desc="set up backup encryption"
   declare SERVICE="$1" ENCRYPTION_KEY="$2"
   local SERVICE_ROOT="${PLUGIN_DATA_ROOT}/${SERVICE}"
   local SERVICE_BACKUP_ENCRYPTION_ROOT="${SERVICE_ROOT}/backup-encryption/"
@@ -292,7 +353,7 @@ service_backup_set_encryption() {
 }
 
 service_backup_unschedule() {
-  declare desc="unschedules the backup of the service"
+  declare desc="unschedule the backup of the service"
   declare SERVICE="$1"
   local CRON_FILE="/etc/cron.d/dokku-${PLUGIN_COMMAND_PREFIX}-${SERVICE}"
 
@@ -300,7 +361,7 @@ service_backup_unschedule() {
 }
 
 service_backup_unset_encryption() {
-  declare desc="Removes backup encryption"
+  declare desc="remove backup encryption"
   declare SERVICE="$1"
   local SERVICE_ROOT="${PLUGIN_DATA_ROOT}/${SERVICE}"
   local SERVICE_BACKUP_ENCRYPTION_ROOT="${SERVICE_ROOT}/backup-encryption/"
@@ -309,7 +370,7 @@ service_backup_unset_encryption() {
 }
 
 service_container_rm() {
-  declare desc="Stops a service and removes the running container"
+  declare desc="stop a service and remove the running container"
   declare SERVICE="$1"
   local SERVICE_NAME="$(get_service_name "$SERVICE")"
   local ID
@@ -329,14 +390,14 @@ service_container_rm() {
 }
 
 service_dns_hostname() {
-  declare desc="Retrieves the alias of a service"
+  declare desc="retrieve the alias of a service"
   declare SERVICE="$1"
   local SERVICE_NAME="$(get_service_name "$SERVICE")"
   echo "$SERVICE_NAME" | tr ._ -
 }
 
 service_enter() {
-  declare desc="enters running app container of specified proc type"
+  declare desc="enter running app container of specified proc type"
   declare SERVICE="$1" && shift 1
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local ID="$(cat "$SERVICE_ROOT/ID")"
@@ -351,7 +412,7 @@ service_enter() {
 }
 
 service_exposed_ports() {
-  declare desc="Lists exposed ports for a service"
+  declare desc="list exposed ports for a service"
   declare SERVICE="$1"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local PORT_FILE="$SERVICE_ROOT/PORT"
@@ -363,8 +424,14 @@ service_exposed_ports() {
 }
 
 service_image_exists() {
-  declare desc="Checks if the current image exists"
+  declare desc="check if the current image exists"
-  local IMAGE="$PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION"
+  declare SERVICE="$1"
+  local plugin_image="$PLUGIN_IMAGE"
+  local plugin_image_version="$PLUGIN_IMAGE_VERSION"
+
+  [[ -f "$SERVICE_ROOT/IMAGE" ]] && plugin_image="$(cat "$SERVICE_ROOT/IMAGE")"
+  [[ -f "$SERVICE_ROOT/IMAGE_VERSION" ]] && plugin_image_version="$(cat "$SERVICE_ROOT/IMAGE_VERSION")"
+  local IMAGE="$plugin_image:$plugin_image_version"
 
   if [[ "$(docker images -q "$IMAGE" 2>/dev/null)" == "" ]]; then
     return 1
@@ -374,7 +441,7 @@ service_image_exists() {
 }
 
 service_info() {
-  declare desc="Retrieves information about a given service"
+  declare desc="retrieve information about a given service"
   declare SERVICE="$1" INFO_FLAG="$2"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local SERVICE_URL=$(service_url "$SERVICE")
@@ -384,6 +451,7 @@ service_info() {
 
   local flag_map=(
     "--config-dir: ${SERVICE_ROOT}/${PLUGIN_CONFIG_SUFFIX}"
+    "--config-options: $(cat "$SERVICE_ROOT/CONFIG_OPTIONS")"
     "--data-dir: ${SERVICE_ROOT}/data"
     "--dsn: ${SERVICE_URL}"
     "--exposed-ports: $(service_exposed_ports "$SERVICE")"
@@ -395,7 +463,7 @@ service_info() {
     "--version: $(service_version "$SERVICE")"
   )
   if [[ -z "$INFO_FLAG" ]]; then
-    dokku_log_info2 "$SERVICE $PLUGIN_COMMAND_PREFIX service information"
+    dokku_log_info2_quiet "$SERVICE $PLUGIN_COMMAND_PREFIX service information"
     for flag in "${flag_map[@]}"; do
       key="$(echo "${flag#--}" | cut -f1 -d' ' | tr - ' ')"
       dokku_log_verbose "$(printf "%-20s %-25s" "${key^}" "${flag#*: }")"
@@ -413,7 +481,7 @@ service_info() {
 }
 
 service_is_linked() {
-  declare desc="Links a service to an application"
+  declare desc="link a service to an application"
   declare SERVICE="$1" APP="$2"
   update_plugin_scheme_for_app "$APP"
   local SERVICE_URL=$(service_url "$SERVICE")
@@ -427,7 +495,7 @@ service_is_linked() {
 }
 
 service_link() {
-  declare desc="Links a service to an application"
+  declare desc="link a service to an application"
   declare SERVICE="$1" APP="$2"
   update_plugin_scheme_for_app "$APP"
   local SERVICE_URL=$(service_url "$SERVICE")
@@ -453,9 +521,8 @@ service_link() {
   fi
 
   [[ -n $LINK ]] && dokku_log_fail "Already linked as $LINK"
-  touch "$LINKS_FILE"
+  plugn trigger service-action pre-link "$SERVICE" "$APP"
-  echo "$APP" >>"$LINKS_FILE"
+  add_to_links_file "$SERVICE" "$APP"
-  sort "$LINKS_FILE" -u -o "$LINKS_FILE"
 
   if declare -f -F add_passed_docker_option >/dev/null; then
     # shellcheck disable=SC2034
@@ -465,11 +532,13 @@ service_link() {
     dokku docker-options:add "$APP" build,deploy,run "--link $SERVICE_NAME:$SERVICE_DNS_HOSTNAME"
   fi
   [[ -n "$SERVICE_QUERYSTRING" ]] && SERVICE_URL="${SERVICE_URL}?${SERVICE_QUERYSTRING}"
+  plugn trigger service-action post-link "$SERVICE" "$APP"
   config_set "$APP" "${ALIAS}_URL=$SERVICE_URL"
+  plugn trigger service-action post-link-complete "$SERVICE" "$APP"
 }
 
 service_linked_apps() {
-  declare desc="Lists all apps linked to a service for info output"
+  declare desc="list all apps linked to a service for info output"
   declare SERVICE="$1"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local LINKS_FILE="$SERVICE_ROOT/LINKS"
@@ -481,7 +550,7 @@ service_linked_apps() {
 }
 
 service_links() {
-  declare desc="Lists all apps linked to a service"
+  declare desc="list all apps linked to a service"
   declare SERVICE="$1"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local LINKS_FILE="$SERVICE_ROOT/LINKS"
@@ -493,7 +562,7 @@ service_links() {
 }
 
 service_list() {
-  declare desc="Lists all services and their status"
+  declare desc="list all services and their status"
   local SERVICES=$(ls "$PLUGIN_DATA_ROOT" 2>/dev/null)
 
   if [[ -z $SERVICES ]]; then
@@ -508,7 +577,7 @@ service_list() {
 }
 
 service_logs() {
-  declare desc="Displays logs for a service"
+  declare desc="display logs for a service"
   declare SERVICE="$1" TAIL_FLAG="$2"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local ID=$(cat "$SERVICE_ROOT/ID")
@@ -546,13 +615,14 @@ service_parse_args() {
       "--querystring") set -- "$@" "-q" ;;
       "--restart-apps") set -- "$@" "-R" ;;
       "--root-password") set -- "$@" "-r" ;;
+      "--shm-size") set -- "$@" "-s" ;;
       "--user") set -- "$@" "-u" ;;
       *) set -- "$@" "$arg" ;;
     esac
   done
 
   OPTIND=1
-  while getopts "a:c:C:d:i:I:m:p:q:R:r:u:" opt; do
+  while getopts "a:c:C:d:i:I:m:p:q:R:r:s:u:" opt; do
     case "$opt" in
       a)
         SERVICE_ALIAS="${OPTARG^^}"
@@ -588,6 +658,9 @@ service_parse_args() {
       r)
         export SERVICE_ROOT_PASSWORD=$OPTARG
         ;;
+      s)
+        export SERVICE_SHM_SIZE=$OPTARG
+        ;;
       u)
         export SERVICE_USER=$OPTARG
         ;;
@@ -597,7 +670,7 @@ service_parse_args() {
 }
 
 service_password() {
-  declare desc="Fetch the password for a service"
+  declare desc="fetch the password for a service"
   declare SERVICE="$1"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local PASSWORD_FILE="$SERVICE_ROOT/PASSWORD"
@@ -607,7 +680,7 @@ service_password() {
 }
 
 service_root_password() {
-  declare desc="Fetch the root password for a service"
+  declare desc="fetch the root password for a service"
   declare SERVICE="$1"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local PASSWORD_FILE="$SERVICE_ROOT/ROOTPASSWORD"
@@ -617,14 +690,14 @@ service_root_password() {
 }
 
 service_port_expose() {
-  declare desc="Wrapper for exposing service ports"
+  declare desc="wrapper for exposing service ports"
   declare SERVICE="$1"
   service_start "$SERVICE" "true"
   service_port_unpause "$SERVICE" "true" "${@:2}"
 }
 
 service_port_pause() {
-  declare desc="Pauses service exposure"
+  declare desc="pause service exposure"
   declare SERVICE="$1" LOG_FAIL="$2"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local EXPOSED_NAME="$(get_service_name "$SERVICE").ambassador"
@@ -654,7 +727,7 @@ service_port_pause() {
 }
 
 service_port_unexpose() {
-  declare desc="Wrapper for pausing exposed service ports"
+  declare desc="wrapper for pausing exposed service ports"
   declare SERVICE="$1"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local PORT_FILE="$SERVICE_ROOT/PORT"
@@ -663,7 +736,7 @@ service_port_unexpose() {
 }
 
 service_port_unpause() {
-  declare desc="Starts service exposure"
+  declare desc="start service exposure"
   declare SERVICE="$1" LOG_FAIL="$2"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local SERVICE_NAME="$(get_service_name "$SERVICE")"
@@ -694,7 +767,7 @@ service_port_unpause() {
 }
 
 service_promote() {
-  declare desc="Promotes a secondary service to the primary env var"
+  declare desc="promote a secondary service to the primary env var"
   declare SERVICE="$1" APP="$2"
   local PLUGIN_DEFAULT_CONFIG_VAR="${PLUGIN_DEFAULT_ALIAS}_URL"
   local EXISTING_CONFIG=$(config_all "$APP")
@@ -722,7 +795,7 @@ service_promote() {
 }
 
 service_set_alias() {
-  declare desc="Sets the alias in use for a service"
+  declare desc="sets the alias in use for a service"
   declare SERVICE="$1" ALIAS="$2"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local ALIAS_FILE="$SERVICE_ROOT/ALIAS"
@@ -732,7 +805,7 @@ service_set_alias() {
 }
 
 service_status() {
-  declare desc="Displays the status of a service"
+  declare desc="display the status of a service"
   declare SERVICE="$1"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local ID="$(cat "$SERVICE_ROOT/ID")"
@@ -744,7 +817,7 @@ service_status() {
 }
 
 service_stop() {
-  declare desc="Stops a running service"
+  declare desc="stop a running service"
   declare SERVICE="$1"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
   local SERVICE_NAME="$(get_service_name "$SERVICE")"
@@ -762,7 +835,7 @@ service_stop() {
 }
 
 service_unlink() {
-  declare desc="Unlinks an application from a service"
+  declare desc="unlink an application from a service"
   declare SERVICE="$1" APP="$2"
   update_plugin_scheme_for_app "$APP"
   local SERVICE_URL=$(service_url "$SERVICE")
@@ -771,6 +844,7 @@ service_unlink() {
   local SERVICE_DNS_HOSTNAME=$(service_dns_hostname "$SERVICE")
   local LINK=($(echo "$EXISTING_CONFIG" | grep "$SERVICE_URL" | cut -d: -f1)) || true
 
+  plugn trigger service-action pre-unlink "$SERVICE" "$APP"
   remove_from_links_file "$SERVICE" "$APP"
 
   if declare -f -F add_passed_docker_option >/dev/null; then
@@ -782,18 +856,20 @@ service_unlink() {
   fi
 
   [[ -z ${LINK[*]} ]] && dokku_log_fail "Not linked to app $APP"
-  config_unset "$APP" "${LINK[*]}"
+  plugn trigger service-action post-unlink "$SERVICE" "$APP"
+  config_unset "$APP" "${LINK[@]}"
+  plugn trigger service-action post-unlink-complete "$SERVICE" "$APP"
 }
 
 service_version() {
-  declare desc="Displays the running version for an image"
+  declare desc="display the running version for an image"
   declare SERVICE="$1"
   local SERVICE_NAME="$(get_service_name "$SERVICE")"
   docker inspect -f '{{.Config.Image}}' "$SERVICE_NAME" 2>/dev/null || true
 }
 
 update_plugin_scheme_for_app() {
-  declare desc="Retrieves the updated plugin scheme"
+  declare desc="retrieve the updated plugin scheme"
   declare APP="$1"
   local DATABASE_SCHEME
 
@@ -802,7 +878,7 @@ update_plugin_scheme_for_app() {
 }
 
 verify_service_name() {
-  declare desc="Verifies that a service exists"
+  declare desc="verify that a service exists"
   declare SERVICE="$1"
   [[ -z "$SERVICE" ]] && dokku_log_fail "(verify_service_name) SERVICE must not be null"
   [[ ! -d "$PLUGIN_DATA_ROOT/$SERVICE" ]] && dokku_log_fail "$PLUGIN_SERVICE service $SERVICE does not exist"
@@ -810,7 +886,7 @@ verify_service_name() {
 }
 
 write_database_name() {
-  declare desc="Writes a sanitized database name"
+  declare desc="write a sanitized database name"
   declare SERVICE="$1"
   local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
 

config

@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
-export POSTGRES_IMAGE=${POSTGRES_IMAGE:="postgres"}
+_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
-export POSTGRES_IMAGE_VERSION=${POSTGRES_IMAGE_VERSION:="11.6"}
+export POSTGRES_IMAGE=${POSTGRES_IMAGE:="$(awk -F '[ :]' '{print $2}' "${_DIR}/Dockerfile")"}
+export POSTGRES_IMAGE_VERSION=${POSTGRES_IMAGE_VERSION:="$(awk -F '[ :]' '{print $3}' "${_DIR}/Dockerfile")"}
 export POSTGRES_ROOT=${POSTGRES_ROOT:="$DOKKU_LIB_ROOT/services/postgres"}
 export POSTGRES_HOST_ROOT=${POSTGRES_HOST_ROOT:=$POSTGRES_ROOT}
 
@@ -30,3 +31,5 @@ export PLUGIN_BUSYBOX_IMAGE="busybox:1.31.1-uclibc"
 export PLUGIN_AMBASSADOR_IMAGE="dokku/ambassador:0.3.3"
 export PLUGIN_S3BACKUP_IMAGE="dokku/s3backup:0.10.3"
 export PLUGIN_WAIT_IMAGE="dokku/wait:0.4.3"
+
+export POSTGRES_CONFIG_OPTIONS=${POSTGRES_CONFIG_OPTIONS:=""}

docs/README.md

@@ -0,0 +1,4 @@
+# Extra Documentation
+
+The documentation in this folder is supplemental to using this plugin. It is injected automatically into the plugin's readme during documentation generation.
+

docs/create.md

@@ -0,0 +1,5 @@
+Official Postgres docker images does not include postgis extension (amongst others). The following example creates a new postgres service using `postgis/postgis:13-3.1` image, which includes the `postgis` extension.
+
+```shell
+dokku postgres:create postgis-database --image "postgis/postgis" --image-version "13-3.1"
+```

docs/export.md

@@ -0,0 +1,5 @@
+Note that the export will result in a file containing the binary postgres export data. It can be converted to plain text using `pg_restore` as follows
+
+```shell
+pg_restore data.dump -f plain.sql
+```

docs/upgrade.md

@@ -0,0 +1,30 @@
+Postgres does not handle upgrading data for major versions automatically (eg. 11 => 12). Upgrades should be done manually. Users are encouraged to upgrade to the latest minor release for their postgres version before performing a major upgrade.
+
+While there are many ways to upgrade a postgres database, for safety purposes, it is recommended that an upgrade is performed by exporting the data from an existing database and importing it into a new database. This also allows testing to ensure that applications interact with the database correctly after the upgrade, and can be used in a staging environment.
+
+The following is an example of how to upgrade a postgres database named `lollipop-11` from 11.13 to 12.8.
+
+```shell
+# stop any linked apps
+dokku ps:stop linked-app
+
+# export the database contents
+dokku postgres:export lollipop-11 > /tmp/lollipop-11.export
+
+# create a new database at the desired version
+dokku postgres:create lollipop-12 --image-version 12.8
+
+# import the export file
+dokku postgres:import lollipop-12 < /tmp/lollipop-11.export
+
+# run any sql tests against the new database to verify the import went smoothly
+
+# unlink the old database from your apps
+dokku postgres:unlink lollipop-11 linked-app
+
+# link the new database to your apps
+dokku postgres:link lollipop-12 linked-app
+
+# start the linked apps again
+dokku ps:start linked-app
+```

functions

@@ -17,7 +17,7 @@ service_connect() {
   local SERVICE_TTY_OPTS
   has_tty && SERVICE_TTY_OPTS="-t"
 
-  docker exec -i $SERVICE_TTY_OPTS "$SERVICE_NAME" psql -h localhost -U postgres "$DATABASE_NAME"
+  docker exec --env=LANG=C.UTF-8 --env=LC_ALL=C.UTF-8 -i $SERVICE_TTY_OPTS "$SERVICE_NAME" psql -h localhost -U postgres "$DATABASE_NAME"
 }
 
 service_create() {
@@ -40,6 +40,7 @@ service_create() {
     docker pull "$PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION" || dokku_log_fail "$PLUGIN_SERVICE image $PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION pull failed"
   fi
 
+  plugn trigger service-action pre-create "$SERVICE"
   mkdir -p "$SERVICE_ROOT" || dokku_log_fail "Unable to create service directory"
   mkdir -p "$SERVICE_ROOT/data" || dokku_log_fail "Unable to create service data directory"
   touch "$LINKS_FILE"
@@ -52,15 +53,11 @@ service_create() {
   echo "$PASSWORD" >"$SERVICE_ROOT/PASSWORD"
   chmod 640 "$SERVICE_ROOT/PASSWORD"
 
-  [[ -n "$SERVICE_CUSTOM_ENV" ]] && POSTGRES_CUSTOM_ENV="$SERVICE_CUSTOM_ENV"
+  service_commit_config "$SERVICE"
-  if [[ -n $POSTGRES_CUSTOM_ENV ]]; then
-    echo "$POSTGRES_CUSTOM_ENV" | tr ';' "\n" >"$SERVICE_ROOT/ENV"
-  else
-    echo "" >"$SERVICE_ROOT/ENV"
-  fi
-
   write_database_name "$SERVICE"
+  plugn trigger service-action post-create "$SERVICE"
   service_create_container "$SERVICE"
+  plugn trigger service-action post-create-complete "$SERVICE"
 }
 
 service_create_container() {
@@ -72,7 +69,25 @@ service_create_container() {
   local DATABASE_NAME="$(get_database_name "$SERVICE")"
   local PREVIOUS_ID
 
-  ID=$(docker run --name "$SERVICE_NAME" -v "$SERVICE_HOST_ROOT/data:/var/lib/postgresql/data" -e "POSTGRES_PASSWORD=$PASSWORD" --env-file="$SERVICE_ROOT/ENV" -d --restart always --label dokku=service --label dokku.service=postgres "$PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION")
+  if [[ -f "$SERVICE_ROOT/CONFIG_OPTIONS" ]]; then
+    export CONFIG_OPTIONS="$(cat "$SERVICE_ROOT/CONFIG_OPTIONS")"
+  fi
+
+  [[ -f "$SERVICE_ROOT/SERVICE_MEMORY" ]] && SERVICE_MEMORY="$(cat "$SERVICE_ROOT/SERVICE_MEMORY")"
+  if [[ -n "$SERVICE_MEMORY" ]]; then
+    MEMORY_LIMIT="--memory=${SERVICE_MEMORY}m"
+  fi
+
+  [[ -f "$SERVICE_ROOT/SHM_SIZE" ]] && SERVICE_SHM_SIZE="$(cat "$SERVICE_ROOT/SHM_SIZE")"
+  if [[ -n "$SERVICE_SHM_SIZE" ]]; then
+    SHM_SIZE="--shm-size=${SERVICE_SHM_SIZE}"
+  fi
+
+  [[ -f "$SERVICE_ROOT/IMAGE" ]] && PLUGIN_IMAGE="$(cat "$SERVICE_ROOT/IMAGE")"
+  [[ -f "$SERVICE_ROOT/IMAGE_VERSION" ]] && PLUGIN_IMAGE_VERSION="$(cat "$SERVICE_ROOT/IMAGE_VERSION")"
+
+  # shellcheck disable=SC2086
+  ID=$(docker run --name "$SERVICE_NAME" $MEMORY_LIMIT $SHM_SIZE -v "$SERVICE_HOST_ROOT/data:/var/lib/postgresql/data" -e "POSTGRES_PASSWORD=$PASSWORD" --env-file="$SERVICE_ROOT/ENV" -d --restart always --label dokku=service --label dokku.service=postgres "$PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION" $CONFIG_OPTIONS)
   echo "$ID" >"$SERVICE_ROOT/ID"
 
   dokku_log_verbose_quiet "Waiting for container to be ready"
@@ -146,9 +161,15 @@ service_start() {
     dokku_log_info2 "Container started"
   elif service_image_exists "$SERVICE" && [[ -n "$PASSWORD" ]]; then
     service_create_container "$SERVICE"
+  else
+    if ! service_image_exists "$SERVICE"; then
+      [[ -f "$SERVICE_ROOT/IMAGE" ]] && PLUGIN_IMAGE="$(cat "$SERVICE_ROOT/IMAGE")"
+      [[ -f "$SERVICE_ROOT/IMAGE_VERSION" ]] && PLUGIN_IMAGE_VERSION="$(cat "$SERVICE_ROOT/IMAGE_VERSION")"
+      dokku_log_verbose_quiet "Missing image $PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION for $SERVICE"
     else
       dokku_log_verbose_quiet "Neither container nor valid configuration exists for $SERVICE"
     fi
+  fi
 }
 
 service_url() {

help-functions

@@ -141,7 +141,7 @@ fn-help-contents-subcommand() {
 }
 
 fn-help-fancy-tput() {
-  declare desc="A wrapper around tput"
+  declare desc="a wrapper around tput"
 
   if [[ -n "$DOKKU_NO_COLOR" ]] || [[ "$TERM" == "unknown" ]] || [[ "$TERM" == "dumb" ]]; then
     return
@@ -151,7 +151,7 @@ fn-help-fancy-tput() {
 }
 
 fn-help-fancy-color() {
-  declare desc="A wrapper around colors"
+  declare desc="a wrapper around colors"
 
   if [[ -n "$DOKKU_NO_COLOR" ]] || [[ "$TERM" == "unknown" ]] || [[ "$TERM" == "dumb" ]]; then
     return
@@ -309,7 +309,7 @@ fn-help-subcommand-sanitize() {
 }
 
 _fn-help-apply-shell-expansion() {
-  declare desc="Expand environment variables for a shell command"
+  declare desc="expand environment variables for a shell command"
   declare data="$1"
   declare delimiter="__apply_shell_expansion_delimiter__"
   declare command="cat <<$delimiter"$'\n'"$data"$'\n'"$delimiter"

install

@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/config"
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/common-functions"
 set -eo pipefail
 [[ $DOKKU_TRACE ]] && set -x
 
@@ -42,6 +43,23 @@ plugin-install() {
 EOL
 
   chmod 0440 "$_SUDOERS_FILE"
+
+  local SERVICES=$(ls "$PLUGIN_DATA_ROOT" 2>/dev/null)
+  for SERVICE in $SERVICES; do
+    local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
+
+    if [[ ! -f "$SERVICE_ROOT/IMAGE" ]] || [[ ! -f "$SERVICE_ROOT/IMAGE_VERSION" ]]; then
+      local image="$(service_version "$SERVICE")"
+      if [[ "$image" == *":"* ]]; then
+        echo "${image%:*}" > "$SERVICE_ROOT/IMAGE"
+        echo "${image##*:}" > "$SERVICE_ROOT/IMAGE_VERSION"
+      fi
+    fi
+
+    if [[ -f "$SERVICE_ROOT/${PLUGIN_VARIABLE}_CONFIG_OPTIONS" ]]; then
+      mv "$SERVICE_ROOT/${PLUGIN_VARIABLE}_CONFIG_OPTIONS" "$SERVICE_ROOT/CONFIG_OPTIONS"
+    fi
+  done
 }
 
 plugin-install "$@"

plugin.toml

@@ -1,4 +1,4 @@
 [plugin]
 description = "dokku postgres service plugin"
-version = "1.11.6"
+version = "1.16.0"
 [plugin.config]

post-app-clone-setup

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/config"
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/common-functions"
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/functions"
+set -eo pipefail
+[[ $DOKKU_TRACE ]] && set -x
+
+plugin-post-app-clone-setup() {
+  declare OLD_APP_NAME="$1" NEW_APP_NAME="$2"
+
+  local SERVICES=$(ls "$PLUGIN_DATA_ROOT" 2>/dev/null)
+  for SERVICE in $SERVICES; do
+    if in_links_file "$SERVICE" "$OLD_APP_NAME"; then
+      add_to_links_file "$SERVICE" "$NEW_APP_NAME"
+    fi
+  done
+}
+
+plugin-post-app-clone-setup "$@"

post-app-rename-setup

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/config"
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/common-functions"
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/functions"
+set -eo pipefail
+[[ $DOKKU_TRACE ]] && set -x
+
+plugin-post-app-rename-setup() {
+  declare OLD_APP_NAME="$1" NEW_APP_NAME="$2"
+
+  local SERVICES=$(ls "$PLUGIN_DATA_ROOT" 2>/dev/null)
+  for SERVICE in $SERVICES; do
+    if in_links_file "$SERVICE" "$OLD_APP_NAME"; then
+      add_to_links_file "$SERVICE" "$NEW_APP_NAME"
+    fi
+  done
+}
+
+plugin-post-app-rename-setup "$@"

pre-restore

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/config"
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/common-functions"
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/functions"
+set -eo pipefail
+[[ $DOKKU_TRACE ]] && set -x
+
+plugin-pre-restore() {
+  declare SCHEDULER="$1" APP="$2"
+
+  if [[ "$SCHEDULER" != "docker-local" ]]; then
+    return
+  fi
+
+  local SERVICES=$(ls "$PLUGIN_DATA_ROOT" 2>/dev/null)
+  for SERVICE in $SERVICES; do
+    if ! in_links_file "$SERVICE" "$APP"; then
+      continue
+    fi
+
+    local status="$(service_status "$SERVICE")"
+    if [[ "$status" == "running" ]]; then
+      continue
+    fi
+
+    if [[ "$status" == "restarting" ]]; then
+      dokku_log_warn "$PLUGIN_SERVICE service $SERVICE is restarting and may cause issues with linked app $APP"
+      continue
+    fi
+
+    dokku_log_warn "$PLUGIN_SERVICE service $SERVICE is not running, issuing service start"
+    service_start "$SERVICE"
+  done
+}
+
+plugin-pre-restore "$@"

pre-start

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/config"
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/common-functions"
+source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/functions"
+set -eo pipefail
+[[ $DOKKU_TRACE ]] && set -x
+
+plugin-pre-start() {
+  declare APP="$1"
+
+  local SERVICES=$(ls "$PLUGIN_DATA_ROOT" 2>/dev/null)
+  for SERVICE in $SERVICES; do
+    if ! in_links_file "$SERVICE" "$APP"; then
+      continue
+    fi
+
+    local status="$(service_status "$SERVICE")"
+    if [[ "$status" == "running" ]]; then
+      continue
+    fi
+
+    if [[ "$status" == "restarting" ]]; then
+      dokku_log_warn "$PLUGIN_SERVICE service $SERVICE is restarting and may cause issues with linked app $APP"
+      continue
+    fi
+
+    dokku_log_warn "$PLUGIN_SERVICE service $SERVICE is not running, issuing service start"
+    service_start "$SERVICE"
+  done
+}
+
+plugin-pre-start "$@"

subcommands/backup

@@ -6,12 +6,14 @@ source "$PLUGIN_BASE_PATH/common/functions"
 source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-backup-cmd() {
-  #E backup the 'lolipop' service to the 'my-s3-bucket' bucket on AWS
+  #E backup the 'lollipop' service to the 'my-s3-bucket' bucket on AWS
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup lolipop my-s3-bucket --use-iam
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup lollipop my-s3-bucket --use-iam
+  #E restore a backup file (assuming it was extracted via 'tar -xf backup.tgz')
+  #E dokku $PLUGIN_COMMAND_PREFIX:import lollipop < backup-folder/export
   #F -u|--use-iam, use the IAM profile associated with the current server
   #A service, service to run command against
   #A bucket-name, name of the s3 bucket to upload backups to
-  declare desc="creates a backup of the $PLUGIN_SERVICE service to an existing s3 bucket"
+  declare desc="create a backup of the $PLUGIN_SERVICE service to an existing s3 bucket"
   local cmd="$PLUGIN_COMMAND_PREFIX:backup" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1
   declare SERVICE="$1" BUCKET_NAME="$2" USE_IAM_OPTIONAL_FLAG="$3"

subcommands/backup-auth

@@ -7,20 +7,20 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-backup-auth-cmd() {
   #E setup s3 backup authentication
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup-auth lolipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup-auth lollipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY
   #E setup s3 backup authentication with different region
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup-auth lolipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY AWS_REGION
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup-auth lollipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY AWS_REGION
   #E setup s3 backup authentication with different signature version and endpoint
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup-auth lolipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY AWS_REGION AWS_SIGNATURE_VERSION ENDPOINT_URL
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup-auth lollipop AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY AWS_REGION AWS_SIGNATURE_VERSION ENDPOINT_URL
   #E more specific example for minio auth
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup-auth lolipop MINIO_ACCESS_KEY_ID MINIO_SECRET_ACCESS_KEY us-east-1 s3v4 https://YOURMINIOSERVICE
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup-auth lollipop MINIO_ACCESS_KEY_ID MINIO_SECRET_ACCESS_KEY us-east-1 s3v4 https://YOURMINIOSERVICE
   #A service, service to run command against
   #A access-key-id, an amazon AWS_ACCESS_KEY_ID
   #A aws-secret-access-key, an amazon AWS_SECRET_ACCESS_KEY
   #A aws-default-region, (optional) a valid amazon S3 region
   #A aws-signature-version, (optional) the AWS signature version to use when signing S3 requests
   #A endpoint-url, (optional) an aws endpoint to upload to
-  declare desc="sets up authentication for backups on the $PLUGIN_SERVICE service"
+  declare desc="set up authentication for backups on the $PLUGIN_SERVICE service"
   local cmd="$PLUGIN_COMMAND_PREFIX:backup-auth" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1
   declare SERVICE="$1" AWS_ACCESS_KEY_ID="$2" AWS_SECRET_ACCESS_KEY="$3" AWS_DEFAULT_REGION="$4" AWS_SIGNATURE_VERSION="$5" ENDPOINT_URL="$6"

subcommands/backup-deauth

@@ -7,9 +7,9 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-backup-deauth-cmd() {
   #E remove s3 authentication
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup-deauth lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup-deauth lollipop
   #A service, service to run command against
-  declare desc="removes backup authentication for the $PLUGIN_SERVICE service"
+  declare desc="remove backup authentication for the $PLUGIN_SERVICE service"
   local cmd="$PLUGIN_COMMAND_PREFIX:backup-deauth" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1
   declare SERVICE="$1"

subcommands/backup-schedule

@@ -8,14 +8,14 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 service-backup-schedule-cmd() {
   #E schedule a backup
   #E > 'schedule' is a crontab expression, eg. "0 3 * * *" for each day at 3am
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup-schedule lolipop "0 3 * * *" my-s3-bucket
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup-schedule lollipop "0 3 * * *" my-s3-bucket
   #E schedule a backup and authenticate via iam
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup-schedule lolipop "0 3 * * *" my-s3-bucket --use-iam
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup-schedule lollipop "0 3 * * *" my-s3-bucket --use-iam
   #F -u|--use-iam, use the IAM profile associated with the current server
   #A service, service to run command against
   #A schedule, a cron schedule to run backups on
   #A bucket-name, name of the s3 bucket to upload backups to
-  declare desc="schedules a backup of the $PLUGIN_SERVICE service"
+  declare desc="schedule a backup of the $PLUGIN_SERVICE service"
   local cmd="$PLUGIN_COMMAND_PREFIX:backup-schedule" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1
   declare SERVICE="$1" SCHEDULE="$2" BUCKET_NAME="$3" USE_IAM_OPTIONAL_FLAG="$4"

subcommands/backup-schedule-cat

@@ -7,7 +7,7 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-backup-schedule-cat-cmd() {
   #E cat the contents of the configured backup cronfile for the service
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup-schedule-cat lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup-schedule-cat lollipop
   #A service, service to run command against
   declare desc="cat the contents of the configured backup cronfile for the service"
   local cmd="$PLUGIN_COMMAND_PREFIX:backup-schedule-cat" argv=("$@")

subcommands/backup-set-encryption

@@ -7,10 +7,10 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-backup-set-encryption-cmd() {
   #E set the GPG-compatible passphrase for encrypting backups for backups
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup-set-encryption lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup-set-encryption lollipop
   #A service, service to run command against
   #A passphrase, a GPG-compatible passphrase
-  declare desc="sets encryption for all future backups of $PLUGIN_SERVICE service"
+  declare desc="set encryption for all future backups of $PLUGIN_SERVICE service"
   local cmd="$PLUGIN_COMMAND_PREFIX:backup-set-encryption" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1
   declare SERVICE="$1" PASSPHRASE="$2"

subcommands/backup-unschedule

@@ -7,9 +7,9 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-backup-unschedule-cmd() {
   #E remove the scheduled backup from cron
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup-unschedule lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup-unschedule lollipop
   #A service, service to run command against
-  declare desc="unschedules the backup of the $PLUGIN_SERVICE service"
+  declare desc="unschedule the backup of the $PLUGIN_SERVICE service"
   local cmd="$PLUGIN_COMMAND_PREFIX:backup-unschedule" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1
   declare SERVICE="$1"

subcommands/backup-unset-encryption

@@ -7,9 +7,9 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-backup-unset-encryption-cmd() {
   #E unset the GPG encryption passphrase for backups
-  #E dokku $PLUGIN_COMMAND_PREFIX:backup-unset-encryption lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:backup-unset-encryption lollipop
   #A service, service to run command against
-  declare desc="unsets encryption for future backups of the $PLUGIN_SERVICE service"
+  declare desc="unset encryption for future backups of the $PLUGIN_SERVICE service"
   local cmd="$PLUGIN_COMMAND_PREFIX:backup-unset-encryption" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1
   declare SERVICE="$1"

subcommands/clone

@@ -7,14 +7,17 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-clone-cmd() {
   #E you can clone an existing service to a new one
-  #E dokku $PLUGIN_COMMAND_PREFIX:clone lolipop lolipop-2
+  #E dokku $PLUGIN_COMMAND_PREFIX:clone lollipop lollipop-2
   #A service, service to run command against
   #A new-service, name of new service
+  #F -c|--config-options "--args --go=here", extra arguments to pass to the container create command
   #F -C|--custom-env "USER=alpha;HOST=beta", semi-colon delimited environment variables to start the service with
   #F -i|--image IMAGE, the image name to start the service with
   #F -I|--image-version IMAGE_VERSION, the image version to start the service with
+  #F -m|--memory MEMORY, container memory limit (default: unlimited)
   #F -p|--password PASSWORD, override the user-level service password
   #F -r|--root-password PASSWORD, override the root-level service password
+  #F -s|--shm-size SHM_SIZE, override shared memory size for $PLUGIN_COMMAND_PREFIX docker container
   declare desc="create container <new-name> then copy data from <name> into <new-name>"
   local cmd="$PLUGIN_COMMAND_PREFIX:clone" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1

subcommands/connect

@@ -7,7 +7,8 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-connect-cmd() {
   #E connect to the service via the $PLUGIN_COMMAND_PREFIX connection tool
-  #E dokku $PLUGIN_COMMAND_PREFIX:connect lolipop
+  #E > NOTE: disconnecting from ssh while running this command may leave zombie processes due to moby/moby#9098
+  #E dokku $PLUGIN_COMMAND_PREFIX:connect lollipop
   #A service, service to run command against
   declare desc="connect to the service via the $PLUGIN_COMMAND_PREFIX connection tool"
   local cmd="$PLUGIN_COMMAND_PREFIX:connect" argv=("$@")

subcommands/create

@@ -6,23 +6,26 @@ source "$PLUGIN_BASE_PATH/common/functions"
 source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-create-cmd() {
-  #E create a $PLUGIN_COMMAND_PREFIX service named lolipop
+  #E create a $PLUGIN_COMMAND_PREFIX service named lollipop
-  #E dokku $PLUGIN_COMMAND_PREFIX:create lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:create lollipop
   #E you can also specify the image and image version to use for the service.
   #E it *must* be compatible with the ${PLUGIN_IMAGE} image.
-  #E export ${PLUGIN_DEFAULT_ALIAS}_IMAGE="${PLUGIN_IMAGE}"
+  #E export ${PLUGIN_VARIABLE}_IMAGE="${PLUGIN_IMAGE}"
-  #E export ${PLUGIN_DEFAULT_ALIAS}_IMAGE_VERSION="${PLUGIN_IMAGE_VERSION}"
+  #E export ${PLUGIN_VARIABLE}_IMAGE_VERSION="${PLUGIN_IMAGE_VERSION}"
-  #E dokku $PLUGIN_COMMAND_PREFIX:create lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:create lollipop
   #E you can also specify custom environment variables to start
   #E the ${PLUGIN_COMMAND_PREFIX} service in semi-colon separated form.
-  #E export ${PLUGIN_DEFAULT_ALIAS}_CUSTOM_ENV="USER=alpha;HOST=beta"
+  #E export ${PLUGIN_VARIABLE}_CUSTOM_ENV="USER=alpha;HOST=beta"
-  #E dokku $PLUGIN_COMMAND_PREFIX:create lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:create lollipop
   #A service, service to run command against
+  #F -c|--config-options "--args --go=here", extra arguments to pass to the container create command
   #F -C|--custom-env "USER=alpha;HOST=beta", semi-colon delimited environment variables to start the service with
   #F -i|--image IMAGE, the image name to start the service with
   #F -I|--image-version IMAGE_VERSION, the image version to start the service with
+  #F -m|--memory MEMORY, container memory limit (default: unlimited)
   #F -p|--password PASSWORD, override the user-level service password
   #F -r|--root-password PASSWORD, override the root-level service password
+  #F -s|--shm-size SHM_SIZE, override shared memory size for $PLUGIN_COMMAND_PREFIX docker container
   declare desc="create a $PLUGIN_SERVICE service"
   local cmd="$PLUGIN_COMMAND_PREFIX:create" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1

subcommands/destroy

@@ -7,7 +7,7 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-destroy-cmd() {
   #E destroy the service, it's data, and the running container
-  #E dokku $PLUGIN_COMMAND_PREFIX:destroy lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:destroy lollipop
   #A service, service to run command against
   #F -f|--force, force destroy without asking for confirmation
   declare desc="delete the $PLUGIN_SERVICE service/data/container if there are no links left"
@@ -41,6 +41,7 @@ service-destroy-cmd() {
   fi
 
   dokku_log_info2_quiet "Deleting $SERVICE"
+  plugn trigger service-action pre-delete "$SERVICE"
   service_backup_unschedule "$SERVICE"
   service_container_rm "$SERVICE"
 
@@ -48,6 +49,7 @@ service-destroy-cmd() {
   docker run --rm -v "$SERVICE_HOST_ROOT/data:/data" -v "$SERVICE_HOST_ROOT/$PLUGIN_CONFIG_SUFFIX:/config" "$PLUGIN_BUSYBOX_IMAGE" chmod 777 -R /config /data
   rm -rf "$SERVICE_ROOT"
 
+  plugn trigger service-action post-delete "$SERVICE"
   dokku_log_info2 "$PLUGIN_SERVICE container deleted: $SERVICE"
 }
 

subcommands/enter

@@ -8,10 +8,11 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 service-enter-cmd() {
   #E a bash prompt can be opened against a running service.
   #E filesystem changes will not be saved to disk.
-  #E dokku $PLUGIN_COMMAND_PREFIX:enter lolipop
+  #E > NOTE: disconnecting from ssh while running this command may leave zombie processes due to moby/moby#9098
+  #E dokku $PLUGIN_COMMAND_PREFIX:enter lollipop
   #E you may also run a command directly against the service.
   #E filesystem changes will not be saved to disk.
-  #E dokku $PLUGIN_COMMAND_PREFIX:enter lolipop touch /tmp/test
+  #E dokku $PLUGIN_COMMAND_PREFIX:enter lollipop touch /tmp/test
   #A service, service to run command against
   declare desc="enter or run a command in a running $PLUGIN_SERVICE service container"
   local cmd="$PLUGIN_COMMAND_PREFIX:enter" argv=("$@")

subcommands/exists

@@ -6,8 +6,8 @@ source "$PLUGIN_BASE_PATH/common/functions"
 source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-exists-cmd() {
-  #E here we check if the lolipop $PLUGIN_COMMAND_PREFIX service exists.
+  #E here we check if the lollipop $PLUGIN_COMMAND_PREFIX service exists.
-  #E dokku $PLUGIN_COMMAND_PREFIX:exists lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:exists lollipop
   #A service, service to run command against
   declare desc="check if the $PLUGIN_SERVICE service exists"
   local cmd="$PLUGIN_COMMAND_PREFIX:exists" argv=("$@")

subcommands/export

@@ -7,9 +7,9 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-export-cmd() {
   #E by default, datastore output is exported to stdout
-  #E dokku $PLUGIN_COMMAND_PREFIX:export lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:export lollipop
   #E you can redirect this output to a file
-  #E dokku $PLUGIN_COMMAND_PREFIX:export lolipop > lolipop.dump
+  #E dokku $PLUGIN_COMMAND_PREFIX:export lollipop > data.dump
   #A service, service to run command against
   declare desc="export a dump of the $PLUGIN_SERVICE service database"
   local cmd="$PLUGIN_COMMAND_PREFIX:export" argv=("$@")

subcommands/expose

@@ -7,10 +7,12 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-expose-cmd() {
   #E expose the service on the service's normal ports, allowing access to it from the public interface (0.0.0.0)
-  #E dokku $PLUGIN_COMMAND_PREFIX:expose lolipop ${PLUGIN_DATASTORE_PORTS[@]}
+  #E dokku $PLUGIN_COMMAND_PREFIX:expose lollipop ${PLUGIN_DATASTORE_PORTS[@]}
+  #E expose the service on the service's normal ports, with the first on a specified ip adddress (127.0.0.1)
+  #E dokku $PLUGIN_COMMAND_PREFIX:expose lollipop 127.0.0.1:${PLUGIN_DATASTORE_PORTS[@]}
   #A service, service to run command against
   #A ports, a list of ports to run against
-  declare desc="expose a $PLUGIN_SERVICE service on custom port if provided (random port otherwise)"
+  declare desc="expose a $PLUGIN_SERVICE service on custom host:port if provided (random port on the 0.0.0.0 interface if otherwise unspecified)"
   local cmd="$PLUGIN_COMMAND_PREFIX:expose" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1
   declare SERVICE="$1" PORTS_LIST=("${@:2}")

subcommands/import

@@ -7,7 +7,7 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-import-cmd() {
   #E import a datastore dump
-  #E dokku $PLUGIN_COMMAND_PREFIX:import lolipop < database.dump
+  #E dokku $PLUGIN_COMMAND_PREFIX:import lollipop < data.dump
   #A service, service to run command against
   declare desc="import a dump into the $PLUGIN_SERVICE service database"
   local cmd="$PLUGIN_COMMAND_PREFIX:import" argv=("$@")

subcommands/info

@@ -7,18 +7,18 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-info-cmd() {
   #E get connection information as follows:
-  #E dokku $PLUGIN_COMMAND_PREFIX:info lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:info lollipop
   #E you can also retrieve a specific piece of service info via flags:
-  #E dokku $PLUGIN_COMMAND_PREFIX:info lolipop --config-dir
+  #E dokku $PLUGIN_COMMAND_PREFIX:info lollipop --config-dir
-  #E dokku $PLUGIN_COMMAND_PREFIX:info lolipop --data-dir
+  #E dokku $PLUGIN_COMMAND_PREFIX:info lollipop --data-dir
-  #E dokku $PLUGIN_COMMAND_PREFIX:info lolipop --dsn
+  #E dokku $PLUGIN_COMMAND_PREFIX:info lollipop --dsn
-  #E dokku $PLUGIN_COMMAND_PREFIX:info lolipop --exposed-ports
+  #E dokku $PLUGIN_COMMAND_PREFIX:info lollipop --exposed-ports
-  #E dokku $PLUGIN_COMMAND_PREFIX:info lolipop --id
+  #E dokku $PLUGIN_COMMAND_PREFIX:info lollipop --id
-  #E dokku $PLUGIN_COMMAND_PREFIX:info lolipop --internal-ip
+  #E dokku $PLUGIN_COMMAND_PREFIX:info lollipop --internal-ip
-  #E dokku $PLUGIN_COMMAND_PREFIX:info lolipop --links
+  #E dokku $PLUGIN_COMMAND_PREFIX:info lollipop --links
-  #E dokku $PLUGIN_COMMAND_PREFIX:info lolipop --service-root
+  #E dokku $PLUGIN_COMMAND_PREFIX:info lollipop --service-root
-  #E dokku $PLUGIN_COMMAND_PREFIX:info lolipop --status
+  #E dokku $PLUGIN_COMMAND_PREFIX:info lollipop --status
-  #E dokku $PLUGIN_COMMAND_PREFIX:info lolipop --version
+  #E dokku $PLUGIN_COMMAND_PREFIX:info lollipop --version
   #A service, service to run command against
   #F --config-dir, show the service configuration directory
   #F --data-dir, show the service data directory

subcommands/link

@@ -10,20 +10,20 @@ service-link-cmd() {
   #E this will use native docker links via the docker-options plugin.
   #E here we link it to our 'playground' app.
   #E > NOTE: this will restart your app
-  #E dokku $PLUGIN_COMMAND_PREFIX:link lolipop playground
+  #E dokku $PLUGIN_COMMAND_PREFIX:link lollipop playground
   #E the following environment variables will be set automatically by docker
   #E (not on the app itself, so they won’t be listed when calling dokku config):
   #E
-  #E     DOKKU_${PLUGIN_DEFAULT_ALIAS}_LOLIPOP_NAME=/lolipop/DATABASE
+  #E     DOKKU_${PLUGIN_VARIABLE}_LOLLIPOP_NAME=/lollipop/DATABASE
-  #E     DOKKU_${PLUGIN_DEFAULT_ALIAS}_LOLIPOP_PORT=tcp://172.17.0.1:${PLUGIN_DATASTORE_PORTS[0]}
+  #E     DOKKU_${PLUGIN_VARIABLE}_LOLLIPOP_PORT=tcp://172.17.0.1:${PLUGIN_DATASTORE_PORTS[0]}
-  #E     DOKKU_${PLUGIN_DEFAULT_ALIAS}_LOLIPOP_PORT_${PLUGIN_DATASTORE_PORTS[0]}_TCP=tcp://172.17.0.1:${PLUGIN_DATASTORE_PORTS[0]}
+  #E     DOKKU_${PLUGIN_VARIABLE}_LOLLIPOP_PORT_${PLUGIN_DATASTORE_PORTS[0]}_TCP=tcp://172.17.0.1:${PLUGIN_DATASTORE_PORTS[0]}
-  #E     DOKKU_${PLUGIN_DEFAULT_ALIAS}_LOLIPOP_PORT_${PLUGIN_DATASTORE_PORTS[0]}_TCP_PROTO=tcp
+  #E     DOKKU_${PLUGIN_VARIABLE}_LOLLIPOP_PORT_${PLUGIN_DATASTORE_PORTS[0]}_TCP_PROTO=tcp
-  #E     DOKKU_${PLUGIN_DEFAULT_ALIAS}_LOLIPOP_PORT_${PLUGIN_DATASTORE_PORTS[0]}_TCP_PORT=${PLUGIN_DATASTORE_PORTS[0]}
+  #E     DOKKU_${PLUGIN_VARIABLE}_LOLLIPOP_PORT_${PLUGIN_DATASTORE_PORTS[0]}_TCP_PORT=${PLUGIN_DATASTORE_PORTS[0]}
-  #E     DOKKU_${PLUGIN_DEFAULT_ALIAS}_LOLIPOP_PORT_${PLUGIN_DATASTORE_PORTS[0]}_TCP_ADDR=172.17.0.1
+  #E     DOKKU_${PLUGIN_VARIABLE}_LOLLIPOP_PORT_${PLUGIN_DATASTORE_PORTS[0]}_TCP_ADDR=172.17.0.1
   #E
   #E the following will be set on the linked application by default:
   #E
-  #E     ${PLUGIN_DEFAULT_ALIAS}_URL=${PLUGIN_SCHEME}://lolipop:SOME_PASSWORD@dokku-${PLUGIN_COMMAND_PREFIX}-lolipop:${PLUGIN_DATASTORE_PORTS[0]}/lolipop
+  #E     ${PLUGIN_DEFAULT_ALIAS}_URL=${PLUGIN_SCHEME}://lollipop:SOME_PASSWORD@dokku-${PLUGIN_COMMAND_PREFIX}-lollipop:${PLUGIN_DATASTORE_PORTS[0]}/lollipop
   #E
   #E the host exposed here only works internally in docker containers.
   #E if you want your container to be reachable from outside, you should
@@ -34,10 +34,10 @@ service-link-cmd() {
   #E after linking will cause the plugin to think the service is not
   #E linked, and we advise you to unlink before proceeding.
   #E dokku config:set playground ${PLUGIN_VARIABLE}_DATABASE_SCHEME=${PLUGIN_SCHEME}2
-  #E dokku $PLUGIN_COMMAND_PREFIX:link lolipop playground
+  #E dokku $PLUGIN_COMMAND_PREFIX:link lollipop playground
   #E this will cause ${PLUGIN_DEFAULT_ALIAS}_URL to be set as:
   #E
-  #E     ${PLUGIN_SCHEME}2://lolipop:SOME_PASSWORD@dokku-${PLUGIN_COMMAND_PREFIX}-lolipop:${PLUGIN_DATASTORE_PORTS[0]}/lolipop
+  #E     ${PLUGIN_SCHEME}2://lollipop:SOME_PASSWORD@dokku-${PLUGIN_COMMAND_PREFIX}-lollipop:${PLUGIN_DATASTORE_PORTS[0]}/lollipop
   #A service, service to run command against
   #A app, app to run command against
   #F -a|--alias "BLUE_DATABASE", an alternative alias to use for linking to an app via environment variable

subcommands/linked

@@ -6,8 +6,8 @@ source "$PLUGIN_BASE_PATH/common/functions"
 source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-linked-cmd() {
-  #E here we check if the lolipop $PLUGIN_COMMAND_PREFIX service is linked to the 'playground' app.
+  #E here we check if the lollipop $PLUGIN_COMMAND_PREFIX service is linked to the 'playground' app.
-  #E dokku $PLUGIN_COMMAND_PREFIX:linked lolipop playground
+  #E dokku $PLUGIN_COMMAND_PREFIX:linked lollipop playground
   #A service, service to run command against
   #A app, app to run command against
   declare desc="check if the $PLUGIN_SERVICE service is linked to an app"

subcommands/links

@@ -6,8 +6,8 @@ source "$PLUGIN_BASE_PATH/common/functions"
 source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-links-cmd() {
-  #E list all apps linked to the 'lolipop' $PLUGIN_COMMAND_PREFIX service.
+  #E list all apps linked to the 'lollipop' $PLUGIN_COMMAND_PREFIX service.
-  #E dokku $PLUGIN_COMMAND_PREFIX:links lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:links lollipop
   #A service, service to run command against
   declare desc="list all apps linked to the $PLUGIN_SERVICE service"
   local cmd="$PLUGIN_COMMAND_PREFIX:links" argv=("$@")

subcommands/logs

@@ -7,9 +7,9 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-logs-cmd() {
   #E you can tail logs for a particular service:
-  #E dokku $PLUGIN_COMMAND_PREFIX:logs lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:logs lollipop
   #E by default, logs will not be tailed, but you can do this with the --tail flag:
-  #E dokku $PLUGIN_COMMAND_PREFIX:logs lolipop --tail
+  #E dokku $PLUGIN_COMMAND_PREFIX:logs lollipop --tail
   #A service, service to run command against
   #F -t|--tail, do not stop when end of the logs are reached and wait for additional output
   declare desc="print the most recent log(s) for this service"

subcommands/promote

@@ -20,7 +20,7 @@ service-promote-cmd() {
   #E
   #E     ${PLUGIN_DEFAULT_ALIAS}_URL=${PLUGIN_SCHEME}://other_service:ANOTHER_PASSWORD@dokku-${PLUGIN_COMMAND_PREFIX}-other-service:${PLUGIN_DATASTORE_PORTS[0]}/other_service
   #E     DOKKU_${PLUGIN_DEFAULT_ALIAS}_BLUE_URL=${PLUGIN_SCHEME}://other_service:ANOTHER_PASSWORD@dokku-${PLUGIN_COMMAND_PREFIX}-other-service:${PLUGIN_DATASTORE_PORTS[0]}/other_service
-  #E     DOKKU_${PLUGIN_DEFAULT_ALIAS}_SILVER_URL=${PLUGIN_SCHEME}://lolipop:SOME_PASSWORD@dokku-${PLUGIN_COMMAND_PREFIX}-lolipop:${PLUGIN_DATASTORE_PORTS[0]}/lolipop
+  #E     DOKKU_${PLUGIN_DEFAULT_ALIAS}_SILVER_URL=${PLUGIN_SCHEME}://lollipop:SOME_PASSWORD@dokku-${PLUGIN_COMMAND_PREFIX}-lollipop:${PLUGIN_DATASTORE_PORTS[0]}/lollipop
   #A service, service to run command against
   #A app, app to run command against
   declare desc="promote service <service> as ${PLUGIN_DEFAULT_ALIAS}_URL in <app>"

subcommands/restart

@@ -7,7 +7,7 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-restart-cmd() {
   #E restart the service
-  #E dokku $PLUGIN_COMMAND_PREFIX:restart lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:restart lollipop
   #A service, service to run command against
   declare desc="graceful shutdown and restart of the $PLUGIN_SERVICE service container"
   local cmd="$PLUGIN_COMMAND_PREFIX:restart" argv=("$@")

subcommands/start

@@ -7,7 +7,7 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-start-cmd() {
   #E start the service
-  #E dokku $PLUGIN_COMMAND_PREFIX:start lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:start lollipop
   #A service, service to run command against
   declare desc="start a previously stopped $PLUGIN_SERVICE service"
   local cmd="$PLUGIN_COMMAND_PREFIX:start" argv=("$@")

subcommands/stop

@@ -7,7 +7,7 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-stop-cmd() {
   #E stop the service and the running container
-  #E dokku $PLUGIN_COMMAND_PREFIX:stop lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:stop lollipop
   #A service, service to run command against
   declare desc="stop a running $PLUGIN_SERVICE service"
   local cmd="$PLUGIN_COMMAND_PREFIX:stop" argv=("$@")

subcommands/unexpose

@@ -7,7 +7,7 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 
 service-unexpose-cmd() {
   #E unexpose the service, removing access to it from the public interface (0.0.0.0)
-  #E dokku $PLUGIN_COMMAND_PREFIX:unexpose lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:unexpose lollipop
   #A service, service to run command against
   declare desc="unexpose a previously exposed $PLUGIN_SERVICE service"
   local cmd="$PLUGIN_COMMAND_PREFIX:unexpose" argv=("$@")

subcommands/unlink

@@ -8,7 +8,7 @@ source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/functions"
 service-unlink-cmd() {
   #E you can unlink a $PLUGIN_COMMAND_PREFIX service
   #E > NOTE: this will restart your app and unset related environment variables
-  #E dokku $PLUGIN_COMMAND_PREFIX:unlink lolipop playground
+  #E dokku $PLUGIN_COMMAND_PREFIX:unlink lollipop playground
   #A service, service to run command against
   #A app, app to run command against
   declare desc="unlink the $PLUGIN_SERVICE service from the app"

subcommands/upgrade

@@ -8,12 +8,14 @@ source "$PLUGIN_AVAILABLE_PATH/ps/functions"
 
 service-upgrade-cmd() {
   #E you can upgrade an existing service to a new image or image-version
-  #E dokku $PLUGIN_COMMAND_PREFIX:upgrade lolipop
+  #E dokku $PLUGIN_COMMAND_PREFIX:upgrade lollipop
   #A service, service to run command against
+  #F -c|--config-options "--args --go=here", extra arguments to pass to the container create command
   #F -C|--custom-env "USER=alpha;HOST=beta", semi-colon delimited environment variables to start the service with
   #F -i|--image IMAGE, the image name to start the service with
   #F -I|--image-version IMAGE_VERSION, the image version to start the service with
   #F -R|--restart-apps "true", whether to force an app restart
+  #F -s|--shm-size SHM_SIZE, override shared memory size for $PLUGIN_COMMAND_PREFIX docker container
   declare desc="upgrade service <service> to the specified versions"
   local cmd="$PLUGIN_COMMAND_PREFIX:upgrade" argv=("$@")
   [[ ${argv[0]} == "$cmd" ]] && shift 1
@@ -36,6 +38,8 @@ service-upgrade-cmd() {
     return
   fi
 
+  service_commit_config "$SERVICE"
+
   dokku_log_info2 "Upgrading $SERVICE to $NEW_PLUGIN_IMAGE_TAG"
   if [[ "$SERVICE_RESTART_APPS" == "true" ]]; then
     dokku_log_info2 "Stopping all linked services"

tests/hook_pre_delete.bats

@@ -2,18 +2,18 @@
 load test_helper
 
 setup() {
-  dokku apps:create my_app
+  dokku apps:create my-app
   dokku "$PLUGIN_COMMAND_PREFIX:create" l
-  dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app >&2
+  dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app >&2
 }
 
 teardown() {
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app >&2
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app >&2
   dokku --force "$PLUGIN_COMMAND_PREFIX:destroy" l
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:hook:pre-delete) removes app from links file when destroying app" {
   [[ -n $(< "$PLUGIN_DATA_ROOT/l/LINKS") ]]
-  dokku --force apps:destroy my_app
+  dokku --force apps:destroy my-app
   [[ -z $(< "$PLUGIN_DATA_ROOT/l/LINKS") ]]
 }

tests/service_export.bats

@@ -20,6 +20,9 @@ teardown() {
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:export) success with SSH_TTY" {
+  if [[ -n "$GITHUB_WORKFLOW" ]]; then
+    skip "No tty is available on Github Actions"
+  fi
   export SSH_TTY=`tty`
   run dokku "$PLUGIN_COMMAND_PREFIX:export" l
   echo "output: $output"

tests/service_import.bats

@@ -24,6 +24,9 @@ teardown() {
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:import) error when data is not provided" {
+  if [[ -n "$GITHUB_WORKFLOW" ]]; then
+    skip "No tty is available on Github Actions"
+  fi
   run dokku "$PLUGIN_COMMAND_PREFIX:import" l
   assert_contains "${lines[*]}" "No data provided on stdin"
   assert_failure

tests/service_link.bats

@@ -4,13 +4,13 @@ load test_helper
 setup() {
   dokku "$PLUGIN_COMMAND_PREFIX:create" l
   dokku "$PLUGIN_COMMAND_PREFIX:create" m
-  dokku apps:create my_app
+  dokku apps:create my-app
 }
 
 teardown() {
   dokku --force "$PLUGIN_COMMAND_PREFIX:destroy" m
   dokku --force "$PLUGIN_COMMAND_PREFIX:destroy" l
-  dokku --force apps:destroy my_app
+  dokku --force apps:destroy my-app
 }
 
 
@@ -39,7 +39,7 @@ teardown() {
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:link) error when the service does not exist" {
-  run dokku "$PLUGIN_COMMAND_PREFIX:link" not_existing_service my_app
+  run dokku "$PLUGIN_COMMAND_PREFIX:link" not_existing_service my-app
   echo "output: $output"
   echo "status: $status"
   assert_contains "${lines[*]}" "service not_existing_service does not exist"
@@ -47,73 +47,73 @@ teardown() {
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:link) error when the service is already linked to app" {
-  dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app
-  run dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app
+  run dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app
   echo "output: $output"
   echo "status: $status"
   assert_contains "${lines[*]}" "Already linked as DATABASE_URL"
   assert_failure
 
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:link) exports DATABASE_URL to app" {
-  run dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app
+  run dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app
   echo "output: $output"
   echo "status: $status"
-  url=$(dokku config:get my_app DATABASE_URL)
+  url=$(dokku config:get my-app DATABASE_URL)
   password="$(sudo cat "$PLUGIN_DATA_ROOT/l/PASSWORD")"
   assert_contains "$url" "postgres://postgres:$password@dokku-postgres-l:5432/l"
   assert_success
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:link) generates an alternate config url when DATABASE_URL already in use" {
-  dokku config:set my_app DATABASE_URL=postgres://user:pass@host:5432/db
+  dokku config:set my-app DATABASE_URL=postgres://user:pass@host:5432/db
-  dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app
-  run dokku config my_app
+  run dokku config my-app
   assert_contains "${lines[*]}" "DOKKU_POSTGRES_AQUA_URL"
   assert_success
 
-  dokku "$PLUGIN_COMMAND_PREFIX:link" m my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:link" m my-app
-  run dokku config my_app
+  run dokku config my-app
   assert_contains "${lines[*]}" "DOKKU_POSTGRES_BLACK_URL"
   assert_success
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" m my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" m my-app
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:link) links to app with docker-options" {
-  dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app
-  run dokku docker-options:report my_app
+  run dokku docker-options:report my-app
   assert_contains "${lines[*]}" "--link dokku.postgres.l:dokku-postgres-l"
   assert_success
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:link) uses apps POSTGRES_DATABASE_SCHEME variable" {
-  dokku config:set my_app POSTGRES_DATABASE_SCHEME=postgres2
+  dokku config:set my-app POSTGRES_DATABASE_SCHEME=postgres2
-  dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app
-  url=$(dokku config:get my_app DATABASE_URL)
+  url=$(dokku config:get my-app DATABASE_URL)
   password="$(sudo cat "$PLUGIN_DATA_ROOT/l/PASSWORD")"
   assert_contains "$url" "postgres2://postgres:$password@dokku-postgres-l:5432/l"
   assert_success
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:link) adds a querystring" {
-  dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app --querystring "pool=5"
+  dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app --querystring "pool=5"
-  url=$(dokku config:get my_app DATABASE_URL)
+  url=$(dokku config:get my-app DATABASE_URL)
   assert_contains "$url" "?pool=5"
   assert_success
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:link) uses a specified config url when alias is specified" {
-  dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app --alias "ALIAS"
+  dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app --alias "ALIAS"
-  url=$(dokku config:get my_app ALIAS_URL)
+  url=$(dokku config:get my-app ALIAS_URL)
   password="$(sudo cat "$PLUGIN_DATA_ROOT/l/PASSWORD")"
   assert_contains "$url" "postgres://postgres:$password@dokku-postgres-l:5432/l"
   assert_success
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app
 }

tests/service_promote.bats

@@ -3,14 +3,14 @@ load test_helper
 
 setup() {
   dokku "$PLUGIN_COMMAND_PREFIX:create" l
-  dokku apps:create my_app
+  dokku apps:create my-app
-  dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app
 }
 
 teardown() {
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app
   dokku --force "$PLUGIN_COMMAND_PREFIX:destroy" l
-  dokku --force apps:destroy my_app
+  dokku --force apps:destroy my-app
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:promote) error when there are no arguments" {
@@ -29,34 +29,34 @@ teardown() {
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:promote) error when the service does not exist" {
-  run dokku "$PLUGIN_COMMAND_PREFIX:promote" not_existing_service my_app
+  run dokku "$PLUGIN_COMMAND_PREFIX:promote" not_existing_service my-app
   assert_contains "${lines[*]}" "service not_existing_service does not exist"
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:promote) error when the service is already promoted" {
-  run dokku "$PLUGIN_COMMAND_PREFIX:promote" l my_app
+  run dokku "$PLUGIN_COMMAND_PREFIX:promote" l my-app
   assert_contains "${lines[*]}" "already promoted as DATABASE_URL"
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:promote) changes DATABASE_URL" {
   password="$(sudo cat "$PLUGIN_DATA_ROOT/l/PASSWORD")"
-  dokku config:set my_app "DATABASE_URL=postgres://u:p@host:5432/db" "DOKKU_POSTGRES_BLUE_URL=postgres://postgres:$password@dokku-postgres-l:5432/l"
+  dokku config:set my-app "DATABASE_URL=postgres://u:p@host:5432/db" "DOKKU_POSTGRES_BLUE_URL=postgres://postgres:$password@dokku-postgres-l:5432/l"
-  dokku "$PLUGIN_COMMAND_PREFIX:promote" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:promote" l my-app
-  url=$(dokku config:get my_app DATABASE_URL)
+  url=$(dokku config:get my-app DATABASE_URL)
   assert_equal "$url" "postgres://postgres:$password@dokku-postgres-l:5432/l"
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:promote) creates new config url when needed" {
   password="$(sudo cat "$PLUGIN_DATA_ROOT/l/PASSWORD")"
-  dokku config:set my_app "DATABASE_URL=postgres://u:p@host:5432/db" "DOKKU_POSTGRES_BLUE_URL=postgres://postgres:$password@dokku-postgres-l:5432/l"
+  dokku config:set my-app "DATABASE_URL=postgres://u:p@host:5432/db" "DOKKU_POSTGRES_BLUE_URL=postgres://postgres:$password@dokku-postgres-l:5432/l"
-  dokku "$PLUGIN_COMMAND_PREFIX:promote" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:promote" l my-app
-  run dokku config my_app
+  run dokku config my-app
   assert_contains "${lines[*]}" "DOKKU_POSTGRES_"
 }
 @test "($PLUGIN_COMMAND_PREFIX:promote) uses POSTGRES_DATABASE_SCHEME variable" {
   password="$(sudo cat "$PLUGIN_DATA_ROOT/l/PASSWORD")"
-  dokku config:set my_app "POSTGRES_DATABASE_SCHEME=postgres2" "DATABASE_URL=postgres://u:p@host:5432/db" "DOKKU_POSTGRES_BLUE_URL=postgres2://postgres:$password@dokku-postgres-l:5432/l"
+  dokku config:set my-app "POSTGRES_DATABASE_SCHEME=postgres2" "DATABASE_URL=postgres://u:p@host:5432/db" "DOKKU_POSTGRES_BLUE_URL=postgres2://postgres:$password@dokku-postgres-l:5432/l"
-  dokku "$PLUGIN_COMMAND_PREFIX:promote" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:promote" l my-app
-  url=$(dokku config:get my_app DATABASE_URL)
+  url=$(dokku config:get my-app DATABASE_URL)
   assert_contains "$url" "postgres2://postgres:$password@dokku-postgres-l:5432/l"
 }

tests/service_unlink.bats

@@ -2,13 +2,13 @@
 load test_helper
 
 setup() {
-  dokku apps:create my_app
+  dokku apps:create my-app
   dokku "$PLUGIN_COMMAND_PREFIX:create" l
 }
 
 teardown() {
   dokku --force "$PLUGIN_COMMAND_PREFIX:destroy" l
-  dokku --force apps:destroy my_app
+  dokku --force apps:destroy my-app
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:unlink) error when there are no arguments" {
@@ -27,27 +27,27 @@ teardown() {
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:unlink) error when the service does not exist" {
-  run dokku "$PLUGIN_COMMAND_PREFIX:unlink" not_existing_service my_app
+  run dokku "$PLUGIN_COMMAND_PREFIX:unlink" not_existing_service my-app
   assert_contains "${lines[*]}" "service not_existing_service does not exist"
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:unlink) error when service not linked to app" {
-  run dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app
+  run dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app
-  assert_contains "${lines[*]}" "Not linked to app my_app"
+  assert_contains "${lines[*]}" "Not linked to app my-app"
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:unlink) removes link from docker-options" {
-  dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app >&2
+  dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app >&2
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app
 
   check_value="Docker options build: Docker options deploy: --restart=on-failure:10 Docker options run:"
-  options=$(dokku --quiet docker-options:report my_app | xargs)
+  options=$(dokku --quiet docker-options:report my-app | xargs)
   assert_equal "$options" "$check_value"
 }
 
 @test "($PLUGIN_COMMAND_PREFIX:unlink) unsets config url from app" {
-  dokku "$PLUGIN_COMMAND_PREFIX:link" l my_app >&2
+  dokku "$PLUGIN_COMMAND_PREFIX:link" l my-app >&2
-  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my_app
+  dokku "$PLUGIN_COMMAND_PREFIX:unlink" l my-app
-  config=$(dokku config:get my_app DATABASE_URL || true)
+  config=$(dokku config:get my-app DATABASE_URL || true)
   assert_equal "$config" ""
 }

tests/setup.sh

@@ -19,12 +19,15 @@ echo "Dokku version $DOKKU_VERSION"
 
 export DOKKU_LIB_ROOT="/var/lib/dokku"
 export DOKKU_PLUGINS_ROOT="$DOKKU_LIB_ROOT/plugins/available"
-source "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")/config"
+pushd "$(dirname "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)")" >/dev/null
+source "config"
+popd >/dev/null
 sudo rm -rf "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX"
-sudo mkdir -p "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX" "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX/subcommands" "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX/scripts"
+sudo mkdir -p "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX" "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX/subcommands" "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX/scripts" "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX/templates"
 sudo find ./ -maxdepth 1 -type f -exec cp '{}' "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX" \;
 [[ -d "./scripts" ]] && sudo find ./scripts -maxdepth 1 -type f -exec cp '{}' "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX/scripts" \;
 [[ -d "./subcommands" ]] && sudo find ./subcommands -maxdepth 1 -type f -exec cp '{}' "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX/subcommands" \;
+[[ -d "./templates" ]] && sudo find ./templates -maxdepth 1 -type f -exec cp '{}' "$DOKKU_PLUGINS_ROOT/$PLUGIN_COMMAND_PREFIX/templates" \;
 sudo mkdir -p "$PLUGIN_CONFIG_ROOT" "$PLUGIN_DATA_ROOT"
 sudo dokku plugin:enable "$PLUGIN_COMMAND_PREFIX"
 sudo dokku plugin:install

tests/shellcheck-to-junit

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 from __future__ import print_function
 import argparse