Skip to content

Update Helm version from 3.1 to 3.4+ used in Review App of GitLab software

Proposal

As we are using a Kubernetes 1.16 cluster on Review Apps of GitLab software on its CI (evidence: https://gitlab.com/gitlab-org/gitlab/-/jobs/1118045325), we can use Helm either 3.2, 3.3, or 3.4.

https://helm.sh/docs/topics/version_skew/

Helm Version Supported Kubernetes Versions
3.5.x 1.20.x - 1.17.x
3.1.x 1.17.x - 1.14.x

Benefits

Deploying, stopping, and cleaning up review apps would be faster as the image size of our latest image is 87% smaller than the current one:

$ docker images registry.gitlab.com/gitlab-org/gitlab-build-images
REPOSITORY                                           TAG                          IMAGE ID            CREATED             SIZE
registry.gitlab.com/gitlab-org/gitlab-build-images   gitlab-helm3.5-kubectl1.17   91f91485d26d        8 hours ago         168MB
registry.gitlab.com/gitlab-org/gitlab-build-images   gitlab-helm3-kubectl1.14     34ff1ce43979        8 weeks ago         1.34GB

adapted from gitlab-build-images#69 (closed)

cf.

Edited by Takuya Noguchi