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Commit 4a30d68a authored by Dennis Tang's avatar Dennis Tang
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update documentation

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doc/user/project/clusters/index.md
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......@@ -23,17 +23,17 @@ You need Master [permissions] and above to access the Kubernetes page.
Before proceeding, make sure the following requirements are met:
- The [Google authentication integration](../../../integration/google.md) must
* The [Google authentication integration](../../../integration/google.md) must
be enabled in GitLab at the instance level. If that's not the case, ask your
GitLab administrator to enable it.
- Your associated Google account must have the right privileges to manage
* Your associated Google account must have the right privileges to manage
clusters on GKE. That would mean that a [billing
account](https://cloud.google.com/billing/docs/how-to/manage-billing-account)
must be set up and that you have to have permissions to access it.
- You must have Master [permissions] in order to be able to access the
* You must have Master [permissions] in order to be able to access the
**Kubernetes** page.
- You must have [Cloud Billing API](https://cloud.google.com/billing/) enabled
- You must have [Resource Manager
* You must have [Cloud Billing API](https://cloud.google.com/billing/) enabled
* You must have [Resource Manager
API](https://cloud.google.com/resource-manager/)
If all of the above requirements are met, you can proceed to create and add a
......@@ -41,20 +41,22 @@ new Kubernetes cluster that will be hosted on GKE to your project:
1. Navigate to your project's **CI/CD > Kubernetes** page.
1. Click on **Add Kubernetes cluster**.
1. Click on **Create with GKE**.
1. Ensure the **Create new cluster on GKE** tab is active, otherwise, select it.
1. Connect your Google account if you haven't done already by clicking the
**Sign in with Google** button.
1. Fill in the requested values:
- **Cluster name** (required) - The name you wish to give the cluster.
- **GCP project ID** (required) - The ID of the project you created in your GCP
* **Cluster name** (required) - The name you wish to give the cluster.
* **GCP project ID** (required) - The ID of the project you created in your GCP
console that will host the Kubernetes cluster. This must **not** be confused
with the project name. Learn more about [Google Cloud Platform projects](https://cloud.google.com/resource-manager/docs/creating-managing-projects).
- **Zone** - The [zone](https://cloud.google.com/compute/docs/regions-zones/)
* **Zone** - The [zone](https://cloud.google.com/compute/docs/regions-zones/)
under which the cluster will be created.
- **Number of nodes** - The number of nodes you wish the cluster to have.
- **Machine type** - The [machine type](https://cloud.google.com/compute/docs/machine-types)
* **Number of nodes** - The number of nodes you wish the cluster to have.
* **Machine type** - The [machine type](https://cloud.google.com/compute/docs/machine-types)
of the Virtual Machine instance that the cluster will be based on.
- **Environment scope** - The [associated environment](#setting-the-environment-scope) to this cluster.
* **Environment scope** - The [associated environment](#setting-the-environment-scope) to this cluster.
1. Finally, click the **Create Kubernetes cluster** button.
After a few moments, your cluster should be created. If something goes wrong,
......@@ -72,18 +74,18 @@ To add an existing Kubernetes cluster to your project:
1. Navigate to your project's **CI/CD > Kubernetes** page.
1. Click on **Add Kubernetes cluster**.
1. Click on **Add an existing Kubernetes cluster** and fill in the details:
- **Kubernetes cluster name** (required) - The name you wish to give the cluster.
- **Environment scope** (required)- The
1. Click on the **Add existing cluster** tab and fill in the following details:
* **Kubernetes cluster name** (required) - The name you wish to give the cluster.
* **Environment scope** (required)- The
[associated environment](#setting-the-environment-scope) to this cluster.
- **API URL** (required) -
* **API URL** (required) -
It's the URL that GitLab uses to access the Kubernetes API. Kubernetes
exposes several APIs, we want the "base" URL that is common to all of them,
e.g., `https://kubernetes.example.com` rather than `https://kubernetes.example.com/api/v1`.
- **CA certificate** (optional) -
* **CA certificate** (optional) -
If the API is using a self-signed TLS certificate, you'll also need to include
the `ca.crt` contents here.
- **Token** -
* **Token** -
GitLab authenticates against Kubernetes using service tokens, which are
scoped to a particular `namespace`. If you don't have a service token yet,
you can follow the
......@@ -91,17 +93,17 @@ To add an existing Kubernetes cluster to your project:
to create one. You can also view or create service tokens in the
[Kubernetes dashboard](https://kubernetes.io/docs/tasks/access-application-cluster/web-ui-dashboard/#config)
(under **Config > Secrets**).
- **Project namespace** (optional) - The following apply:
- By default you don't have to fill it in; by leaving it blank, GitLab will
* **Project namespace** (optional) - The following apply:
* By default you don't have to fill it in; by leaving it blank, GitLab will
create one for you.
- Each project should have a unique namespace.
- The project namespace is not necessarily the namespace of the secret, if
* Each project should have a unique namespace.
* The project namespace is not necessarily the namespace of the secret, if
you're using a secret with broader permissions, like the secret from `default`.
- You should **not** use `default` as the project namespace.
- If you or someone created a secret specifically for the project, usually
* You should **not** use `default` as the project namespace.
* If you or someone created a secret specifically for the project, usually
with limited permissions, the secret's namespace and project namespace may
be the same.
1. Finally, click the **Create Kubernetes cluster** button.
1. Finally, click the **Add Kubernetes cluster** button.
After a few moments, your cluster should be created. If something goes wrong,
you will be notified.
......@@ -151,7 +153,7 @@ added directly to your configured cluster. Those applications are needed for
[Review Apps](../../../ci/review_apps/index.md) and [deployments](../../../ci/environments.md).
| 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 will be automatically installed as a dependency when you try to install a different app. It is installed in its own pod inside the cluster which can run the `helm` CLI in a safe environment. |
| [Ingress](https://kubernetes.io/docs/concepts/services-networking/ingress/) | 10.2+ | Ingress can provide load balancing, SSL termination, and name-based virtual hosting. It acts as a web proxy for your applications and is useful if you want to use [Auto DevOps] or deploy your own web apps. |
| [Prometheus](https://prometheus.io/docs/introduction/overview/) | 10.4+ | Prometheus is an open-source monitoring and alerting system useful to supervise your deployed applications |
......@@ -245,8 +247,8 @@ Also, jobs that don't have an environment keyword set will not be able to access
For example, let's say the following Kubernetes clusters exist in a project:
| Cluster | Environment scope |
| ---------- | ------------------- |
| Development| `*` |
| ----------- | ----------------- |
| Development | `*` |
| Staging | `staging/*` |
| Production | `production/*` |
......@@ -278,9 +280,9 @@ deploy to production:
The result will then be:
- The development cluster will be used for the "test" job.
- The staging cluster will be used for the "deploy to staging" job.
- The production cluster will be used for the "deploy to production" job.
* The development cluster will be used for the "test" job.
* The staging cluster will be used for the "deploy to staging" job.
* The production cluster will be used for the "deploy to production" job.
## Multiple Kubernetes clusters
......@@ -301,7 +303,7 @@ The Kubernetes cluster integration exposes the following
GitLab CI/CD build environment.
| Variable | Description |
| -------- | ----------- |
| ------------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `KUBE_URL` | Equal to the API URL. |
| `KUBE_TOKEN` | The Kubernetes token. |
| `KUBE_NAMESPACE` | The Kubernetes namespace is auto-generated if not specified. The default value is `<project_name>-<project_id>`. You can overwrite it to use different one if needed, otherwise the `KUBE_NAMESPACE` variable will receive the default value. |
......@@ -394,4 +396,4 @@ the deployment variables above, ensuring any pods you create are labelled with
[permissions]: ../../permissions.md
[ee]: https://about.gitlab.com/products/
[Auto DevOps]: ../../../topics/autodevops/index.md
[auto devops]: ../../../topics/autodevops/index.md
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