DevOps GitLab CICD 实践2——Runner 部署

Run GitLab Runner in a container

This is how you can run GitLab Runner inside a Docker container.

General GitLab Runner Docker image usage

GitLab Runner Docker images (based on Ubuntu or Alpine Linux ) are designed as wrappers around the standard gitlab-runner command, like if GitLab Runner was installed directly on the host.

The general rule is that every GitLab Runner command that normally would be executed as:

gitlab-runner [Runner command and options...]
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can be executed with:

docker run [chosen docker options...] gitlab/gitlab-runner [Runner command and options...]
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For example, getting the top-level help information for GitLab Runner command could be executed as:

docker run --rm -t -i gitlab/gitlab-runner --help

NAME:
   gitlab-runner - a GitLab Runner

USAGE:
   gitlab-runner [global options] command [command options] [arguments...]

VERSION:
   10.7.0 (7c273476)

(...)
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In short, the gitlab-runner part of the command is replaced with docker run [docker options] gitlab/gitlab-runner , while the rest of Runner’s command stays as it is described in the register documentation . The only difference is that the gitlab-runner command is executed inside of a Docker container.

Docker image installation and configuration

1. Install Docker first:

   curl -sSL https://get.docker.com/ | sh
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2. You need to mount a config volume into the gitlab-runner container to be used for configs and other resources:

   docker run -d --name gitlab-runner --restart always \
      -v /srv/gitlab-runner/config:/etc/gitlab-runner \
      -v /var/run/docker.sock:/var/run/docker.sock \
      gitlab/gitlab-runner:latest
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   Tip:On macOS, use /Users/Shared instead of /srv .

   Or, you can use a config container to mount your custom data volume:

   docker run -d --name gitlab-runner-config \
        -v /etc/gitlab-runner \
        busybox:latest \
        /bin/true
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   And then, run the Runner:

   docker run -d --name gitlab-runner --restart always \
        -v /var/run/docker.sock:/var/run/docker.sock \
        --volumes-from gitlab-runner-config \
        gitlab/gitlab-runner:latest
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3. Register the runner you just launched by following the instructions in the Docker section of Registering Runners . The runner won’t pick up any jobs until it’s registered.