🔧(config) add healthcheck to docker-compose

This makes docker-compose up --wait work.

Dockerfile

@@ -41,6 +41,9 @@ CMD ["gunicorn", "-c", "/usr/local/etc/gunicorn/satosa.py"]
 # ---- Development image ----
 FROM common AS development
 
+# Install curl (for healthchecks)
+RUN apt-get update && apt-get install -qy curl
+
 # Playwright browsers
 ENV PLAYWRIGHT_BROWSERS_PATH=/pw-browsers
 RUN pip install playwright

docker-compose.yml

@@ -40,6 +40,13 @@ services:
       - ./docker/files/usr/local/etc/gunicorn/satosa.py:/usr/local/etc/gunicorn/satosa.py
     depends_on:
       - redis
+    healthcheck:
+      test: ["CMD", "curl", "--fail", "http://localhost:8000/ping"]
+      interval: 60s
+      timeout: 5s
+      retries: 3
+      start_period: 30s
+      start_interval: 1s
 
   oidc-test-client:
     build: docker/oidc-test-client