Add healthcheck for Keycloak

docker-compose.yml

@@ -3,7 +3,7 @@ version: '3.8'
 services:
   postgres:
     image: postgres:${POSTGRES_TAG:-latest}
-    restart: always
+    restart: "unless-stopped"
     ports:
       - "5432:5432"
     volumes:
@@ -15,7 +15,7 @@ services:
 
   keycloak:
     image: quay.io/keycloak/keycloak:${KC_TAG:-latest}
-    restart: always
+    restart: "unless-stopped"
     environment:
       KC_DB: postgres
       KC_DB_SCHEMA: public
@@ -23,6 +23,7 @@ services:
       KC_DB_URL_DATABASE: ${POSTGRES_DB:-keycloak}
       KC_DB_URL_HOST: postgres
       KC_DB_USERNAME: ${POSTGRES_USER:-keycloak}
+      KC_HEALTH_ENABLED: "true"
       KC_HOSTNAME: ${KC_HOST:-localhost}
       KC_HTTP_RELATIVE_PATH: ${KC_HTTP_RELATIVE_PATH:-/}
       KC_HTTPS_CERTIFICATE_FILE: /etc/pki/tls/certs/${KC_HTTPS_CERTIFICATE_FILE:-tls.crt}
@@ -42,10 +43,15 @@ services:
       - ./ssl/${KC_HTTPS_CERTIFICATE_KEY_FILE:-tls.key}:/etc/pki/tls/private/${KC_HTTPS_CERTIFICATE_KEY_FILE:-tls.key}
     # if KC_DEV_MODE variable is set, start keycloak in dev mode (start-dev)
     command: start${KC_DEV_MODE:+-dev}
+    healthcheck:
+      test: ["CMD", "curl", "--head", "-fsS", "http://localhost:8080/auth/health/ready"]
+      interval: 30s
+      timeout: 15s
+      retries: 5
 
   pg-backups:
     image: prodrigestivill/postgres-backup-local:${POSTGRES_TAG:-latest}
-    restart: always
+    restart: "unless-stopped"
     environment:
       BACKUP_DIR: ${BACKUP_DIR:-/backups}
       BACKUP_KEEP_DAYS: ${BACKUP_KEEP_DAYS:-7}