Use a Docker Hub proxy
Docker Hub rate limits container image pulls. These limits are easily hit in a CI environment, so it is recommended to enable a container proxy.
GitLab's Dependency Proxy feature allows you to proxy Docker Hub containers through GitLab. However, rather than use these values directly, use the CONTAINER_PROXY variable to make it easy to change proxy location in the future without updating every repository.
When this pipeline is included, CONTAINER_PROXY is set by default to the following value:
Note the trailing slash (
/)! This allows projects to continue to function if
CONTAINER_PROXY is not configured.
It is recommended to configure CONTAINER_PROXY at the group level, so that CI jobs can use proxied containers. Here is an example using the image keyword:
This pipeline will automatically add CONTAINER_PROXY as a
--build-arg, so you
FROM images in Dockerfiles as well: