Adds container health checks to those where it is possible

docker/compose/docker-compose.postgres.yml

@@ -30,6 +30,8 @@ services:
     restart: unless-stopped
     volumes:
       - redisdata:/data
+    healthcheck:
+      test: ["CMD-SHELL", "redis-cli ping | grep -q PONG || exit 1"]
   db:
     image: docker.io/library/postgres:18
     restart: unless-stopped
@@ -39,12 +41,16 @@ services:
       POSTGRES_DB: paperless
       POSTGRES_USER: paperless
       POSTGRES_PASSWORD: paperless
+    healthcheck:
+      test: ["CMD", "pg_isready", "-U", "paperless"]
   webserver:
     image: ghcr.io/paperless-ngx/paperless-ngx:latest
     restart: unless-stopped
     depends_on:
-      - db
-      - broker
+      db:
+        condition: service_healthy
+      broker:
+        condition: service_healthy
     ports:
       - "8000:8000"
     volumes: