Traefik with Docker in Bitbucket Pipelines

Traefik Traefik v2
1

I am running docker compose in Bitbucket Pipelines. In the compose file I have Traefik set up like this:

  traefik:
    image: traefik:v2.11
    container_name: traefik
    command:
      - "--log.level=DEBUG"
      - "--api.insecure=true"
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entryPoints.web.address=:80"
    ports:
      - "80:80"
      - "8080:8080"
    volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"

It works on my computer locally, however, I get the following error when running it in Bitbucket Pipelines:

level=error msg="Failed to retrieve information of the docker client and server host: permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get \"http://%2Fvar%2Frun%2Fdocker.sock/v1.24/version\": dial unix /var/run/docker.sock: connect: permission denied" providerName=docker
level=error msg="Provider connection error permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get \"http://%2Fvar%2Frun%2Fdocker.sock/v1.24/version\": dial unix /var/run/docker.sock: connect: permission denied, retrying in 556.184722ms" providerName=docker

It looks like the docker.sock is not available in Pipelines. Is it possible to use Traefik with Docker without using docker.sock? What else can I try?

2

Checking they make any kind of Docker API available for Traefik configuration discovery, via socket or TCP connection.

3

Thank you for the hint, the solution was indeed to pass docker as a tcp url to Traefik.

See the highlighted lines in the compose.yaml below.

traefik:
  image: traefik:v2.11
  container_name: traefik
  command:
    - "--log.level=DEBUG"
    - "--api.insecure=true"
    - "--providers.docker=true"
    - "--providers.docker.endpoint=tcp://host.docker.internal:2375"  # <-----
    - "--providers.docker.exposedbydefault=false"
    - "--entryPoints.web.address=:80"
  ports:
    - "80:80"
    - "8080:8080"
  extra_hosts:
    - "host.docker.internal:$BITBUCKET_DOCKER_HOST_INTERNAL"  # <-----