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Diffstat (limited to 'doc/ci/docker/using_docker_images.md')
| -rw-r--r-- | doc/ci/docker/using_docker_images.md | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/doc/ci/docker/using_docker_images.md b/doc/ci/docker/using_docker_images.md index 9dee61bfa1f..00787323b6b 100644 --- a/doc/ci/docker/using_docker_images.md +++ b/doc/ci/docker/using_docker_images.md @@ -39,13 +39,15 @@ accessible during the build process. ## What is an image -The `image` keyword is the name of the docker image that is present in the -local Docker Engine (list all images with `docker images`) or any image that -can be found at [Docker Hub][hub]. For more information about images and Docker -Hub please read the [Docker Fundamentals][] documentation. +The `image` keyword is the name of the docker image the docker executor +will run to perform the CI tasks. -In short, with `image` we refer to the docker image, which will be used to -create a container on which your job will run. +By default the executor will only pull images from [Docker Hub][hub], +but this can be configured in the `gitlab-runner/config.toml` by setting +the [docker pull policy][] to allow using local images. + +For more information about images and Docker Hub please read +the [Docker Fundamentals][] documentation. ## What is a service @@ -271,6 +273,7 @@ containers as well as all volumes (`-v`) that were created with the container creation. [Docker Fundamentals]: https://docs.docker.com/engine/understanding-docker/ +[docker pull policy]: https://docs.gitlab.com/runner/executors/docker.html#how-pull-policies-work [hub]: https://hub.docker.com/ [linking-containers]: https://docs.docker.com/engine/userguide/networking/default_network/dockerlinks/ [tutum/wordpress]: https://hub.docker.com/r/tutum/wordpress/ |