GitLab cloud native Helm Chart

This is the official, recommended, and supported method to install GitLab on a cloud native environment.

Note: It is not necessary to have GitLab installed on Kubernetes in order to use the GitLab Kubernetes integration.

Introduction

The gitlab/gitlab chart is the best way to operate GitLab on Kubernetes. This chart contains all the required components to get started, and can scale to large deployments.

This chart includes all the components for a complete experience, but each part can be installed separately.

Limitations

Some features of GitLab are not currently available using the Helm chart:

Database limitations:

GitLab Helm chart quick start guide

For those looking to get up and running with these charts as fast as possible, in a non-production use case, we provide a Quick Start Guide for Proof of Concept (PoC) deployments.

This guide walks the user through deploying these charts with default values & features, but does not meet production ready requirements. If you wish to deploy these charts into production under sustained load, you should follow the complete Installation guide below.

Troubleshooting

We’ve done our best to make these charts as seamless as possible, but occasionally troubles do surface outside of our control. We’ve collected tips and tricks for troubleshooting common issues. Please examine these first before raising an Issue, and feel free to add to them by raising a Merge Request!

See Troubleshooting.

Installation

The gitlab/gitlab chart contains all required dependencies. In production, you may want to enable optional features or advanced configuration. This guide walks all of the options and features of these charts in great depth.

If you are just looking to deploy a Proof of Concept for testing, we strongly suggest you follow our Quick Start for your first iteration.

  1. Preparation
  2. Deployment

Global settings

The complexity of these charts lends themselves to the use of global properties. There are many common global settings that apply to multiple charts. See the Globals documentation for details on the different global configuration values and their application.

Complete properties list

We’re often asked to put a table of all possible properties directly into this index. These charts are massive in scale, and as such the number of properties exceeds the amount of context we’re comfortable placing here. Please see our (nearly) comprehensive list of properties and defaults.

Upgrading

Once your GitLab Chart is installed, configuration changes and chart updates should be done using helm upgrade: 

helm repo add gitlab https://charts.gitlab.io/
helm repo update
helm get values gitlab > gitlab.yaml
helm upgrade gitlab gitlab/gitlab -f gitlab.yaml

For more detailed information see Upgrading.

Uninstall

To uninstall the GitLab Chart, run the following: 

helm uninstall gitlab
Note: With Helm v2, you need to use the command helm delete --purge gitlab.

For the purposes of continuity, these charts have some Kubernetes objects that are not removed when performing helm uninstall. These are items we require you to consciously remove them, as they affect re-deployment should you choose to.

  • PVCs for stateful data, which you must consciously remove
    • Gitaly: This is your repository data.
    • PostgreSQL (if internal): This is your metadata.
    • Redis (if internal): This is cache & job queues, which can be safely removed.
  • Secrets, if generated by our shared-secrets Job. These charts are designed to never generate Kubernetes Secrets via Helm directly. As such, Helm can’t remove them. They contain passwords, encryption secrets, etc. They should not be callously destroyed.
  • ConfigMaps
    • ingress-controller-leader-RELEASE-nginx: This is generated by the NGINX Ingress controller itself, and is outside the control of our chart. It can be safely removed.

The PVCs and Secrets will have the release label set, so you can find these with: 

kubectl get pvc,secret -lrelease=gitlab

Advanced

Beyond the basic deployments of GitLab in cloud native environments, more complex configuration is possible. This section serves a guide point for those tasks which require further planning, such as large scale deployments or migrating from the Omnibus GitLab.

Advanced Configuration

Advanced and large scale deployments have the ability to make use of external services, extended functionality, and alternate providers.

Examples of advanced configurations:

  • GitLab Geo
  • External object storage providers
  • External PostgreSQL, Redis, Gitaly
  • External Ingress providers

See Advanced Configuration.

Migrate from Omnibus GitLab to Kubernetes

It is possible to migrate from Omnibus GitLab to these charts. Doing so generally requires migrating existing data to object storage, and thus is an Advanced Configuration.

To migrate your existing Omnibus GitLab instance to these charts, follow the migration documentation.

Architecture

These charts are complex, as they coordinate the deployment of a complete application suite. We provide documentation of the goals, structure, design decisions, and resource consumption.

Development

For those interested in contributing to these charts, we provide development guidelines covering the gamut of working with this project. They can be found under development.

GitLab version mappings

The GitLab chart doesn’t have the same version number as GitLab itself. Breaking changes are anticipated that may need to be introduced to the chart that would warrant a major version bump, and the requirement for these changes could completely block other development on these charts until completed.

To quickly see the full list of the gitlab chart versions and the GitLab version they map to, issue the following command with Helm: 

helm repo add gitlab https://charts.gitlab.io/
helm search repo -l gitlab/gitlab
Note With Helm v2, the search command would be helm search -l gitlab/gitlab

For more information, visit the version mappings docs.

Contributing

See the developer documentation to learn how to contribute to the GitLab charts, in addition to our Contributing Guidelines.