fix: use healthcheck for postgres instead of pinging

Author: amcsz

config/docker/docker-compose.yml

@@ -12,6 +12,11 @@ services:
     - "othello_pgdata:/var/lib/postgresql"
     networks:
     - othello_network
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U othello -d othello"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
   othello_redis:
     container_name: othello_redis
     image: redis:latest
@@ -28,8 +33,10 @@ services:
     ports:
     - "8000:8000"
     depends_on:
-    - othello_postgres
-    - othello_redis
+      othello_postgres:
+        condition: service_healthy
+      othello_redis:
+        condition: service_started
     volumes:
     - ../../:/app
     working_dir: /app
@@ -45,8 +52,10 @@ services:
     container_name: othello_celery
     image: othello_django
     depends_on:
-    - othello_postgres
-    - othello_redis
+      othello_postgres:
+        condition: service_healthy
+      othello_redis:
+        condition: service_started
     volumes:
     - ../../:/app
     working_dir: /app
@@ -62,8 +71,10 @@ services:
     container_name: othello_gamequeue
     image: othello_django
     depends_on:
-    - othello_postgres
-    - othello_redis
+      othello_postgres:
+        condition: service_healthy
+      othello_redis:
+        condition: service_started
     volumes:
     - ../../:/app
     working_dir: /app

config/docker/entrypoint.sh

@@ -3,12 +3,6 @@ set -e
 
 uv sync
 uv run manage.py collectstatic --noinput
-
-until (PGPASSWORD=pwd psql -h "othello_postgres" -U "othello" -c '\q') 2> /dev/null; do
-  >&2 echo "waiting for postgres"
-  sleep 1
-done
-
 uv run manage.py makemigrations --noinput
 uv run manage.py migrate
 uv run manage.py shell -c "