Add portainer healthcheck

portainer/compose.yml

@@ -5,6 +5,11 @@ services:
     image: portainer/portainer-ce:lts
     container_name: portainer
     restart: always
+    healthcheck:
+      test: curl -f http://localhost:9000/api/status || exit 1
+      interval: 30s
+      timeout: 10s
+      retries: 3
     networks:
       - traefik
     volumes: