Does GitLab CI use Docker?

Does GitLab CI use Docker?

You can use GitLab CI/CD with Docker to create Docker images. For example, you can create a Docker image of your application, test it, and publish it to a container registry. To run Docker commands in your CI/CD jobs, you must configure GitLab Runner to support docker commands.

How does GitLab runner use Docker?

GitLab Runner can use Docker to run jobs on user provided images. This is possible with the use of Docker executor. The Docker executor when used with GitLab CI, connects to Docker Engine and runs each build in a separate and isolated container using the predefined image that is set up in .

What is Docker GitLab?

The GitLab Docker images are monolithic images of GitLab running all the necessary services in a single container. If you instead want to install GitLab on Kubernetes, see GitLab Helm Charts.

Where does GitLab runner store files?

Where the caches are stored

Runner executor Default path of the cache
Shell Locally, under the gitlab-runner user’s home directory: /home/gitlab-runner/cache////cache.zip .
Docker Locally, under Docker volumes: /var/lib/docker/volumes//_data////cache.zip .

What is image in GitLab CI Yml?

The image keyword is the name of the Docker image the Docker executor uses to run CI/CD jobs. By default, the executor pulls images from Docker Hub. However, you can configure the registry location in the gitlab-runner/config. toml file. For example, you can set the Docker pull policy to use local images.

How do I start Gitlab Docker?

Install GitLab using docker-compose

  1. Install Docker Compose.
  2. Make sure you are in the same directory as docker-compose.yml and run docker-compose up -d to start GitLab.

What is image in GitLab CI?

Do you need Docker container to run GitLab CI / CD?

Your application does not need to be built as a Docker container to run CI/CD jobs in Docker containers. To validate your .gitlab-ci.yml file, use the CI Lint tool, which is available in every project. You can also use CI/CD configuration visualization to view a graphical representation of your .gitlab-ci.yml file.

How to use GitLab Runner with Docker executor?

To use GitLab Runner with Docker you need to register a new Runner to use the docker executor. A one-line example can be seen below: The registered runner will use the ruby:2.1 Docker image and will run two services, postgres:latest and mysql:latest, both of which will be accessible during the build process.

Where do CI jobs run in a docker container?

When a CI job runs in a Docker container, the before_script, script, and after_script commands run in the /builds/ / directory. Your image may have a different default WORKDIR defined. To move to your WORKDIR, save the WORKDIR as an environment variable so you can reference it in the container during the job’s runtime.

Where do I find Docker Auth config variable in GitLab?

A DOCKER_AUTH_CONFIG variable provided as either: A CI/CD variable in the.gitlab-ci.yml file. A project’s variables stored on the project’s Settings > CI/CD page. A DOCKER_AUTH_CONFIG variable provided as environment variable in the runner’s config.toml file.