From e3b02288810742727c671f35fcc4cecdb63aa7df Mon Sep 17 00:00:00 2001
From: Jose Diaz-Gonzalez <email@josediazgonzalez.com>
Date: Thu, 5 Nov 2015 01:23:17 -0500
Subject: [PATCH] Add support for custom environment variables when starting a
 service container

---
 README.md | 9 ++++++++-
 commands  | 7 ++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 0f529d2..929a53f 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ dokku plugin:install https://github.com/dokku/dokku-redis.git redis
 ```
 redis:clone <name> <new-name>  Create container <new-name> then copy data from <name> into <new-name>
 redis:connect <name>           Connect via redis-cli to a redis service
-redis:create <name>            Create a redis service
+redis:create <name>            Create a redis service with environment variables
 redis:destroy <name>           Delete the service and stop its container if there are no links left
 redis:export <name> > <file>   Export a dump of the redis service database
 redis:expose <name> [port]     Expose a redis service on custom port if provided (random port otherwise)
@@ -53,6 +53,13 @@ dokku redis:create lolipop
 # official redis image
 export REDIS_IMAGE="redis"
 export REDIS_IMAGE_VERSION="2.8.21"
+
+# you can also specify custom environment
+# variables to start the redis service
+# in semi-colon separated forma
+export REDIS_CUSTOM_ENV="USER=alpha;HOST=beta"
+
+# create a redis service
 dokku redis:create lolipop
 
 # get connection information as follows
diff --git a/commands b/commands
index f35b905..902edcd 100755
--- a/commands
+++ b/commands
@@ -31,8 +31,13 @@ case "$1" in
     touch "$LINKS_FILE"
 
     dokku_log_info1 "Starting container"
+    if [[ -n $REDIS_CUSTOM_ENV ]]; then
+      echo "$REDIS_CUSTOM_ENV" | tr ';' "\n" > "$SERVICE_ROOT/ENV"
+    else
+      echo "" > "$SERVICE_ROOT/ENV"
+    fi
     SERVICE_NAME=$(get_service_name "$SERVICE")
-    ID=$(docker run --name "$SERVICE_NAME" -v "$SERVICE_ROOT/data:/data" -v "$SERVICE_ROOT/config:/usr/local/etc/redis" -d --restart always --label dokku=service --label dokku.service=redis "$PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION")
+    ID=$(docker run --name "$SERVICE_NAME" -v "$SERVICE_ROOT/data:/data" -v "$SERVICE_ROOT/config:/usr/local/etc/redis" --env-file="$SERVICE_ROOT/ENV" -d --restart always --label dokku=service --label dokku.service=redis "$PLUGIN_IMAGE:$PLUGIN_IMAGE_VERSION")
     echo "$ID" > "$SERVICE_ROOT/ID"
 
     dokku_log_verbose_quiet "Waiting for container to be ready"