# Docker host — disk for docker data dir + Docker daemon check.

widgets:
  - type: system_disk
    name: Docker disk
    path: /var/lib/docker
    degrade_threshold: 75
    offline_threshold: 90

  - type: custom_cmd
    name: Docker daemon
    cmd: docker info > /dev/null 2>&1 && exit 0 || exit 2

  # Optional: count running containers (degraded if 0, offline if docker is down).
  # - type: custom_cmd
  #   name: Containers running
  #   cmd: |
  #     COUNT=$(docker ps -q 2>/dev/null | wc -l)
  #     [ $? -ne 0 ] && exit 2
  #     [ "$COUNT" -eq 0 ] && exit 1 || exit 0