refactor(docker-compose): incorporate standalone build

docker-compose.yml

@@ -3,7 +3,8 @@ services:
   main:
     build:
       context: ./docker
-    image: automatischio/automatisch
+      dockerfile: Dockerfile.compose
+    entrypoint: /compose-entrypoint.sh
     ports:
       - '3000:3000'
     depends_on:
@@ -28,7 +29,8 @@ services:
   worker:
     build:
       context: ./docker
-    image: automatischio/automatisch
+      dockerfile: Dockerfile.compose
+    entrypoint: /compose-entrypoint.sh
     depends_on:
       - main
     environment:
@@ -52,7 +54,7 @@ services:
     volumes:
       - postgres_data:/var/lib/postgresql/data
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER} -d $${POSTGRES_DB}"]
+      test: ['CMD-SHELL', 'pg_isready -U $${POSTGRES_USER} -d $${POSTGRES_DB}']
       interval: 10s
       timeout: 5s
       retries: 5

docker/Dockerfile.compose

@@ -0,0 +1,11 @@
+# syntax=docker/dockerfile:1
+FROM automatischio/automatisch:0.2.0
+WORKDIR /automatisch
+
+RUN apk add --no-cache openssl dos2unix
+
+COPY ./compose-entrypoint.sh /compose-entrypoint.sh
+RUN dos2unix /compose-entrypoint.sh
+
+EXPOSE 3000
+ENTRYPOINT ["sh", "/compose-entrypoint.sh"]

docker/compose-entrypoint.sh

@@ -0,0 +1,18 @@
+#!/bin/sh
+
+set -e
+
+if [ ! -f /automatisch/storage/.env ]; then
+  >&2 echo "Saving environment variables"
+  ENCRYPTION_KEY="${ENCRYPTION_KEY:-$(openssl rand -base64 36)}"
+  APP_SECRET_KEY="${APP_SECRET_KEY:-$(openssl rand -base64 36)}"
+  echo "ENCRYPTION_KEY=$ENCRYPTION_KEY" >> /automatisch/storage/.env
+  echo "APP_SECRET_KEY=$APP_SECRET_KEY" >> /automatisch/storage/.env
+fi
+
+# initiate env. vars. from /automatisch/storage/.env file
+export $(grep -v '^#' /automatisch/storage/.env | xargs)
+
+echo "Environment variables have been set!"
+
+sh /entrypoint.sh