Use custom Docker images for the GitLab chart
In certain scenarios (i.e. offline environments), you may want to bring your own images rather than pulling them down from the Internet. This requires specifying your own Docker image registry/repository for each of the charts that make up the GitLab release.
Default image format
Our default format for the image in most cases includes the full path to the image, excluding the tag:
image:
repository: repo.example.com/image
tag: custom-tag
The end result will be repo.example.com/image:custom-tag.
Current images and tags
When planning an upgrade, your current values.yaml and the target version of the
GitLab chart can be used to generate a Helm template.
This template will contain the images and their respective tags that will be
needed by the specified version of the chart.
# Gather the latest values
helm get values gitlab > gitlab.yaml
# Use the gitlab.yaml to find the images and tags
helm template versionfinder gitlab/gitlab -f gitlab.yaml --version 7.3.0 | grep 'image:' | tr -d '[[:blank:]]' | sort --unique
This command can also be used to verify any custom configurations.
Example values file
There is an example values file that demonstrates how to configure a custom Docker registry/repository and tag. You can copy relevant sections of this file for your own releases.