Add health check command

compose.yml

@@ -19,6 +19,12 @@ services:
       - KEYCLOAK_PASSWORD_FILE=/run/secrets/admin_passwd
       - KEYCLOAK_USER="${ADMIN_USERNAME}"
       - PROXY_ADDRESS_FORWARDING=true
+    healthcheck:
+      test: ["CMD", "curl", "http://localhost:8080"]
+      interval: 30s
+      timeout: 10s
+      retries: 10
+      start_period: 1m
     depends_on:
       - mariadb
     deploy: