healthcheck for the image traefik:1.6

user_6589048 0
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How can I build a docker-compose file with the healthcheck for the image traefik:1.6 to validate if the container is healthy? Remarks: The image does not have cmd-shell access. I would not like to change the version of the image.

traefik docker
3 Answers

You can use the healthcheck command.

You have to activate the ping.

After you have to define a healthcheck section in your docker-compose file.

example:

proxy:
  image: traefik:1.6
  command: --api --docker --ping
  ports:
    - "80:80"
    - "8080:8080"
  # ...
  healthcheck:
    test: ["CMD", "traefik" ,"healthcheck"]
    interval: 30s
    timeout: 3s
    retries: 30
user_82281090

For traefik version 1.7, the healthcheck command should be ./traefik healthcheck --ping. I found it after a long struggle period with traefik parameters.

Hope it helps somebody.

image: traefik:1.7
command:
  - "--docker"
  - "--docker.swarmmode"
  - "--docker.watch"
  - "--ping"
  - "--loglevel=INFO"
healthcheck:
  test: ["CMD", "./traefik", "healthcheck", "--ping"]
  interval: 30s
  timeout: 3s
  retries: 30
user_142890440

For traefik v2. You just have to enable the ping command

traefik:
  image: traefik:2.7
  command: 
    - --ping=true
    # ...
  ports:
    - target: 80
      published: 80
      protocol: tcp
      mode: host
    - target: 443
      published: 443
      protocol: tcp
      mode: host
    # ...
  healthcheck:
    test: ["CMD", "traefik", "healthcheck", "--ping"]
    interval: 5s
    retries: 3
user_116681420
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