fix .env file

- rename DOCKER_USER as DOCKERUSER (docker-compose seems to fail with
  varnames containing underscores)
- remove quotes

README.md

@@ -80,7 +80,7 @@ it is tricky to use a relative path with the allgo/docker image).
 
 For convenience, all containers not running as root (rails, mysql, registry)
 have their user overridden to the UID:GID of the developer running
-docker-compose. This is managed with the `DOCKER_USER` environment variable set
+docker-compose. This is managed with the `DOCKERUSER` environment variable set
 [in the `.env`
 file](https://docs.docker.com/compose/environment-variables/#the-env-file) by
 `prepare.sh`.

docker-compose.yml

@@ -14,7 +14,7 @@ services:
 
     build: registry
     #image: allgo/registry
-    user: "$DOCKER_USER"
+    user: "$DOCKERUSER"
     ports:
         - "127.0.0.1:8000-8002:8000-8002"
 
@@ -48,7 +48,7 @@ services:
     container_name: dev-mysql
     build: mysql
     #image: allgo/mysql
-    user: "$DOCKER_USER"
+    user: "$DOCKERUSER"
     
     volumes:
         - "/data/dev/mysql:/vol"
@@ -78,7 +78,7 @@ services:
 
     build: rails
     #image: allgo/rails
-    user: "$DOCKER_USER"
+    user: "$DOCKERUSER"
 
     ports:
         - "127.0.0.1:3000:8080"

prepare.sh

@@ -13,7 +13,7 @@ else
 
 	# generate a .env file for docker-compose
 	cat >".env.tmp" <<EOF
-DOCKER_USER="`id -u`:`id -g`"
+DOCKERUSER=`id -u`:`id -g`
 EOF
 	if [ ! -e .env ] ; then
 		mv .env.tmp .env