Cluster management project (alpha)

CAUTION: Warning: This is an alpha feature, and it is subject to change at any time without prior notice.

Introduced in GitLab 12.4

A project can be designated as the management project for a cluster. A management project can be used to run deployment jobs with Kubernetes cluster-admin privileges.

This can be useful for:

Creating pipelines to install cluster-wide applications into your cluster.
Any jobs that require cluster-admin privileges.

Permissions

Only the management project will receive cluster-admin privileges. All other projects will continue to receive namespace scoped edit level privileges.

Usage

Selecting a cluster management project

This will be implemented as part of this issue.

Configuring your pipeline

After designating a project as the management project for the cluster, write a .gitlab-ci,yml in that project. For example:

configure cluster:
  stage: deploy
  script: kubectl get namespaces
  environment:
    name: production

Setting the environment scope (PREMIUM)

Environment scopes are usable when associating multiple clusters to the same management project.

Each scope can only be used by a single cluster for a management project.

For example, let's say the following Kubernetes clusters are associated to a management project:

Cluster	Environment scope
Development	`*`
Staging	`staging`
Production	`production`

The the following environments set in .gitlab-ci.yml will deploy to the Development, Staging, and Production cluster respectively.

stages:
- deploy

configure development cluster:
  stage: deploy
  script: kubectl get namespaces
  environment:
    name: development

configure staging cluster:
  stage: deploy
  script: kubectl get namespaces
  environment:
    name: staging

configure production cluster:
  stage: deploy
  script: kubectl get namespaces
  environment:
    name: production

Disabling this feature

This feature is enabled by default. To disable this feature, disable the feature flag :cluster_management_project.

To check if the feature flag is enabled on your GitLab instance, please ask an administrator to execute the following in a Rails console:

Feature.enabled?(:cluster_management_project)     # Check if it's enabled or not.
Feature.disable(:cluster_management_project)      # Disable the feature flag.

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