puppet wants to create containers after the host is rebooted. with restarts => always. while the container with that name already exists.

[itsSaad]

When i run puppet, it runs all the containers specified in puppet with hiera. the puppet agent run is successful. But when i restart the server, docker runs the containers on boot as i have mentions restart: always in my hiera config.After the boot when puppet agent is run, it throws error because it tries to create those containers again and docker::run fails because the containers with the exact name is already present. This is my hiera config.

someclass::docker::containers:
  reverse_proxy:
    image: jwilder/nginx-proxy
    ports:
      - '80:80'
    volumes:
      - '/etc/nginx/sites-enabled/:/etc/nginx/custom-conf/'
      - '/etc/nginx/custom-conf/custom.conf:/etc/nginx/conf.d/custom.conf'
      - '/var/run/docker.sock:/tmp/docker.sock:ro'
    detach: true
    restart: always
    use_name: true
  health_check:
    image: nginx
    ports: 81:80
    detach: true
    restart: always
    use_name: true

and from puppet i use it as:

  create_resources(docker::run, $containers)

Error on puppet agent:

Error: /Stage[main]/SomeClass::Docker/Docker::Run[health_check]/Exec[run health_check with docker]/returns: change from notrun to 0 failed: docker run -d --net bridge -m 0b --detach=true -p 81:80  --name health-check --cidfile=/var/run/docker-health-check.cid --restart="always" nginx  returned 125 instead of one of [0]

I also added use_name: true but thats been deprecated. so doesn't seem to a problem regarding that.

Version: garethr-docker 5.0.0 garethr-docker 5.3.0 on AmazonLinux

[scotty-c]

@itsSaad when Docker returns the error code 125 it is an issue with the demon. Please see here https://docs.docker.com/engine/reference/run/#exit-status. Is the Docker Deamon starting correctly after the reboot?

[sathieu]

The reason is probably that the cid file is in /var/run, which is cleaned on reboot. Maybe put this in /var/cache/puppet-garethr-docker or /var/lib/puppet/garethr-docker or similar?