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Merge branch 'docs/kubernetes-tiller' into 'master'

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Add note about the k8s namespace of installed applications

See merge request gitlab-org/gitlab-ce!20423
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Marcia Ramos 2018-07-09 12:58:09 +00:00
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doc/user/project/clusters/index.md
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@ -153,6 +153,13 @@ GitLab provides a one-click install for various applications which will be
added directly to your configured cluster. Those applications are needed for
[Review Apps](../../../ci/review_apps/index.md) and [deployments](../../../ci/environments.md).
NOTE: **Note:**
The applications will be installed in a dedicated namespace called
`gitlab-managed-apps`. In case you have added an existing Kubernetes cluster
with Tiller already installed, you should be careful as GitLab cannot
detect it. By installing it via the applications will result into having it
twice, which can lead to confusion during deployments.
| Application | GitLab version | Description |
| ----------- | :------------: | ----------- |
| [Helm Tiller](https://docs.helm.sh/) | 10.2+ | Helm is a package manager for Kubernetes and is required to install all the other applications. It is installed in its own pod inside the cluster which can run the `helm` CLI in a safe environment. |