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How do GitLab runners work?

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How do GitLab runners work?

GitLab Runners participate in a distributed work-stealing algorithm. They continually poll a GitLab instance for jobs that match their tags, execute them, and communicate the progress and results back. Even though your gitlab-runner service is running, it is empty: it is not hosting any GitLab Runners.

How do I connect to GitLab runner?

Linux

  1. Enter your GitLab instance URL (also known as the gitlab-ci coordinator URL ).
  2. Enter the token you obtained to register the runner.
  3. Enter a description for the runner.
  4. Enter the tags associated with the runner, separated by commas.
  5. Provide the runner executor.

What is the difference between GitLab and GitLab runner?

Runners are the agents that run the CI/CD jobs that come from GitLab. When you register a runner, you are setting up communication between your GitLab instance and the machine where GitLab Runner is installed. Runners usually process jobs on the same machine where you installed GitLab Runner.

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What port do GitLab runners use?

port 8093
If you are using the GitLab Runner Docker image, you must expose port 8093 by adding -p 8093:8093 to your docker run command.

What is GitLab runner helper?

The gitlab-runner-helper container starts before each stage for a couple of seconds, to pull artifacts and caches, and then terminates. After that the container, created from image that you specified will be launched, ant it will also have this volume (from step 1) attached – this is how it receives artifacts btw.

What is a GitLab runner executor?

The Shell executor is a simple executor that you use to execute builds locally on the machine where GitLab Runner is installed. It supports all systems on which the Runner can be installed.

How do I run GitLab runner locally?

  1. Go to your git directory cd my-git-project.
  2. Create a .gitlab-ci.yml.
  3. Create a docker container with your project dir mounted docker run -d \ –name gitlab-runner \ –restart always \ -v $PWD:$PWD \ -v /var/run/docker.sock:/var/run/docker.sock \ gitlab/gitlab-runner:latest.
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How GitLab runner communicate with GitLab?

Runners communicate with GitLab over HTTPS, entirely through connections initiated from the Runner to GitLab and never in reverse. The advantage here is that you can install a Runner behind a firewall and as long as the Runner has outbound access to GitLab.com it will work.

What is GitLab GitLab runner helper?

What is GitLab CI Multi runner?

GitLab Runner. GitLab CI is the open-source continuous integration service included with GitLab that coordinates the testing. The old name of this project was GitLab CI Multi Runner but please use “GitLab Runner” (without CI) from now on.

Does GitLab runner need Docker?

Supported Docker versions A Windows Server running GitLab Runner must be running a recent version of Docker because GitLab Runner uses Docker to detect what version of Windows Server is running. Read more about troubleshooting this.