refactor: use healthcheck for db, remove psql client from image (#737)

* refactor: use healthcheck for db, remove postgresql client from main image

* fix: redis dependency condition

* cleanup entrypoint.sh

* fix healthcheck command

docker-compose.yml

@@ -7,8 +7,10 @@ services:
     ports:
       - '3000:3000'
     depends_on:
-      - postgres
+      postgres:
-      - redis
+        condition: service_healthy
+      redis:
+        condition: service_started
     environment:
       - HOST=localhost
       - PROTOCOL=http
@@ -49,6 +51,11 @@ services:
       - POSTGRES_PASSWORD=automatisch_password
     volumes:
       - postgres_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER} -d $${POSTGRES_DB}"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
   redis:
     image: 'redis:7.0.4'
     volumes:

docker/Dockerfile

@@ -2,7 +2,6 @@
 FROM node:16
 WORKDIR /automatisch
 
-RUN apt-get update && apt-get install -y postgresql-client
 COPY ./entrypoint.sh /entrypoint.sh
 
 RUN yarn global add @automatisch/cli@0.2.0

docker/entrypoint.sh

@@ -2,13 +2,6 @@
 
 set -e
 
-export PGPASSWORD="$POSTGRES_PASSWORD"
-
-until psql -h "$POSTGRES_HOST" -U "$POSTGRES_USERNAME" -d "$POSTGRES_DATABASE" -c '\q'; do
-  >&2 echo "Waiting for Postgres to be ready..."
-  sleep 1
-done
-
 if [ ! -f /automatisch/storage/.env ]; then
   >&2 echo "Saving environment variables"
   ENCRYPTION_KEY="${ENCRYPTION_KEY:-$(openssl rand -base64 36)}"
@@ -17,8 +10,6 @@ if [ ! -f /automatisch/storage/.env ]; then
   echo "APP_SECRET_KEY=$APP_SECRET_KEY" >> /automatisch/storage/.env
 fi
 
->&2 echo "Postgres is up - executing command"
-
 if [ -n "$WORKER" ]; then
   automatisch start-worker --env-file /automatisch/storage/.env
 else