Discussion on: Docker & Azure Pipelines: Better Together!

[ASHUN KOTHARI]

How can I specify a custom path for docker.sock while mentioning the resources or while mentioning container inside the task?

I am running the agent as a service on a linux machine which has docker installed but the socket is not at its default location. I want to run jobs inside a docker but the build fails as I am not able to specify the docker.sock path.

[Davide 'CoderDave' Benvegnù]

In order to use Docker from within a Docker container, you need to [bind-mount}(docs.docker.com/storage/bind-mounts/) the Docker socket.

you will need to add 2 parameters to your docker run command line which are -v /var/run/docker.sock:/var/run/docker.sock -v /usr/bin/docker:/usr/bin/docker (Change it with your path)

[ASHUN KOTHARI]

Thank you for the reply Davide! :)

The way I have configured my pipeline is somewhat like this

resources:
  containers:
  - container: u14
    image: ubuntu:14.04

  - container: u16
    image: ubuntu:16.04

  - container: u18
    image: ubuntu:18.04

jobs:
- job: RunInContainer
  pool:
    vmImage: 'ubuntu-18.04'
  container: u18

  steps:
  - script: printenv

My agent is a running as a service. The docker installed on the agent is having its docker.sock file at a different place. As I am not running the docker run command manually is there a way I could specify it in the above configurations?

I tried giving it under resources > containers > container > options but that didn't work.

[Davide 'CoderDave' Benvegnù]

Well, that should be in the docker run of your agent container (in the script you use to start the container that has the agent in it)