container: enable docker healthchecks

ref: !10681

Co-authored-by: naskya <m@naskya.net>

Dockerfile

@@ -48,7 +48,7 @@ FROM docker.io/node:20-slim
 WORKDIR /firefish
 
 # Install runtime dependencies
-RUN apt-get update && DEBIAN_FRONTEND='noninteractive' apt-get install -y --no-install-recommends zip unzip tini ffmpeg ca-certificates
+RUN apt-get update && DEBIAN_FRONTEND='noninteractive' apt-get install -y --no-install-recommends zip unzip tini ffmpeg ca-certificates curl
 
 RUN echo 'deb https://deb.debian.org/debian experimental main' | tee /etc/apt/sources.list
 RUN apt-get update && DEBIAN_FRONTEND='noninteractive' apt-get --target-release experimental install -y --no-install-recommends libc6

docker-compose.example.yml

@@ -6,8 +6,10 @@ services:
     container_name: firefish_web
     restart: unless-stopped
     depends_on:
-      - db
-      - redis
+      db:
+        condition: service_healthy
+      redis:
+        condition: service_healthy
     ports:
       - "3000:3000"
     networks:
@@ -19,6 +21,11 @@ services:
       - ./custom:/firefish/custom:ro
       - ./files:/firefish/files
       - ./.config:/firefish/.config:ro
+    healthcheck:
+      test: curl -f http://localhost:3000 || exit 1
+      interval: 5s
+      timeout: 5s
+      retries: 5
 
   redis:
     restart: unless-stopped
@@ -28,6 +35,11 @@ services:
       - calcnet
     volumes:
       - ./redis:/data
+    healthcheck:
+      test: redis-cli ping
+      interval: 5s
+      timeout: 5s
+      retries: 5
 
   db:
     restart: unless-stopped
@@ -39,6 +51,11 @@ services:
       - .config/docker.env
     volumes:
       - ./db:/var/lib/postgresql/data
+    healthcheck:
+      test: pg_isready --user="$${POSTGRES_USER}" --dbname="$${POSTGRES_DB}"
+      interval: 5s
+      timeout: 5s
+      retries: 5
 
 networks:
   calcnet: