Files
dokku-postgres/functions
2016-08-29 10:49:46 -04:00

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#!/usr/bin/env bash
source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/config"
set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
source "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/common-functions"
source "$PLUGIN_AVAILABLE_PATH/config/functions"
if [[ -f "$PLUGIN_AVAILABLE_PATH/docker-options/functions" ]]; then
source "$PLUGIN_AVAILABLE_PATH/docker-options/functions"
fi
# non-generic functions
service_create() {
local SERVICE="$1"
[[ -z "$SERVICE" ]] && dokku_log_fail "Please specify a name for the service"
[[ ! -d "$PLUGIN_DATA_ROOT/$SERVICE" ]] || dokku_log_fail "$PLUGIN_SERVICE service $SERVICE already exists"
SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"; LINKS_FILE="$SERVICE_ROOT/LINKS"
if ! docker images | grep -e "^$PLUGIN_IMAGE " | grep -q " $PLUGIN_IMAGE_VERSION " ; then
docker pull "$PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION" || dokku_log_fail "$PLUGIN_SERVICE image $PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION pull failed"
fi
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"
mkdir -p "$SERVICE_ROOT/config" || dokku_log_fail "Unable to create service config directory"
touch "$LINKS_FILE"
password=$(openssl rand -hex 16)
echo "$password" > "$SERVICE_ROOT/PASSWORD"
chmod 640 "$SERVICE_ROOT/PASSWORD"
if [[ -n $POSTGRES_CUSTOM_ENV ]]; then
echo "$POSTGRES_CUSTOM_ENV" | tr ';' "\n" > "$SERVICE_ROOT/ENV"
else
echo "" > "$SERVICE_ROOT/ENV"
fi
service_create_container "$SERVICE"
}
service_create_container() {
local SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local SERVICE_NAME="$(get_service_name "$SERVICE")"
local PASSWORD="$(cat "$SERVICE_ROOT/PASSWORD")"
local PREVIOUS_ID
ID=$(docker run --name "$SERVICE_NAME" -v "$SERVICE_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")
echo "$ID" > "$SERVICE_ROOT/ID"
dokku_log_verbose_quiet "Waiting for container to be ready"
docker run --rm --link "$SERVICE_NAME:$PLUGIN_COMMAND_PREFIX" dokkupaas/wait -p "$PLUGIN_DATASTORE_WAIT_PORT" > /dev/null
dokku_log_verbose_quiet "Creating container database"
DATABASE_NAME="$(get_database_name "$SERVICE")"
docker exec "$SERVICE_NAME" su - postgres -c "createdb -E utf8 $DATABASE_NAME" 2> /dev/null || echo 'Already exists'
dokku_log_verbose_quiet "Securing connection to database"
service_stop "$SERVICE" > /dev/null
docker run --rm -i -v "$SERVICE_ROOT/data:/var/lib/postgresql/data" "$PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION" bash -s < "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/scripts/enable_ssl.sh" &> /dev/null
PREVIOUS_ID=$(docker ps -f status=exited | grep -e "$SERVICE_NAME$" | awk '{print $1}') || true
docker start "$PREVIOUS_ID" > /dev/null
service_port_unpause "$SERVICE"
dokku_log_info2 "$PLUGIN_SERVICE container created: $SERVICE"
service_info "$SERVICE"
}
service_export() {
local SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local SERVICE_NAME="$(get_service_name "$SERVICE")"
local DATABASE_NAME="$(get_database_name "$SERVICE")"
local PASSWORD="$(cat "$SERVICE_ROOT/PASSWORD")"
[[ -n $SSH_TTY ]] && stty -opost
docker exec "$SERVICE_NAME" env PGPASSWORD="$PASSWORD" pg_dump -Fc --no-acl --no-owner -h localhost -U postgres -w "$DATABASE_NAME"
status=$?
[[ -n $SSH_TTY ]] && stty opost
exit $status
}
service_import() {
local SERVICE="$1"
SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
SERVICE_NAME="$(get_service_name "$SERVICE")"
DATABASE_NAME="$(get_database_name "$SERVICE")"
PASSWORD="$(cat "$SERVICE_ROOT/PASSWORD")"
if [[ -t 0 ]]; then
dokku_log_fail "No data provided on stdin."
fi
docker exec -i "$SERVICE_NAME" env PGPASSWORD="$PASSWORD" pg_restore -h localhost -cO -d "$DATABASE_NAME" -U postgres -w
}
service_start() {
local SERVICE="$1"
local QUIET="$2"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local SERVICE_NAME="$(get_service_name "$SERVICE")"
local ID=$(docker ps -f status=running | grep -e "$SERVICE_NAME$" | awk '{print $1}') || true
if [[ -n $ID ]]; then
[[ -z $QUIET ]] && dokku_log_warn "Service is already started"
return 0
fi
dokku_log_info1_quiet "Starting container"
local PREVIOUS_ID=$(docker ps -f status=exited | grep -e "$SERVICE_NAME$" | awk '{print $1}') || true
local IMAGE_EXISTS=$(docker images | grep -e "^$PLUGIN_IMAGE " | grep -q " $PLUGIN_IMAGE_VERSION " && true)
local PASSWORD="$(cat "$SERVICE_ROOT/PASSWORD")"
if [[ -n $PREVIOUS_ID ]]; then
docker start "$PREVIOUS_ID" > /dev/null
service_port_unpause "$SERVICE"
dokku_log_info2 "Container started"
elif $IMAGE_EXISTS && [[ -n "$PASSWORD" ]]; then
service_create_container "$SERVICE"
else
dokku_log_verbose_quiet "Neither container nor valid configuration exists for $SERVICE"
fi
}
service_url() {
local SERVICE="$1"
local SERVICE_ROOT="$PLUGIN_DATA_ROOT/$SERVICE"
local PASSWORD="$(cat "$SERVICE_ROOT/PASSWORD")"
local DATABASE_NAME="$(get_database_name "$SERVICE")"
local SERVICE_ALIAS="$(service_alias "$SERVICE")"
echo "$PLUGIN_SCHEME://postgres:$PASSWORD@$SERVICE_ALIAS:${PLUGIN_DATASTORE_PORTS[0]}/$DATABASE_NAME"
}
update_plugin_scheme_for_app() {
local APP="$1"
local POSTGRES_DATABASE_SCHEME=$(config_get "$APP" POSTGRES_DATABASE_SCHEME)
PLUGIN_SCHEME=${POSTGRES_DATABASE_SCHEME:-$PLUGIN_SCHEME}
}