--- stage: Configure group: Configure info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/product/ux/technical-writing/#assignments --- # Cluster integrations (DEPRECATED) **(FREE)** > - [Deprecated](https://gitlab.com/groups/gitlab-org/configure/-/epics/8) in GitLab 14.5. > - [Disabled on self-managed](https://gitlab.com/gitlab-org/gitlab/-/issues/353410) in GitLab 15.0. WARNING: This feature was [deprecated](https://gitlab.com/groups/gitlab-org/configure/-/epics/8) in GitLab 14.5. FLAG: On self-managed GitLab, by default this feature is not available. To make it available, ask an administrator to [enable the feature flag](../../administration/feature_flags.md) named `certificate_based_clusters`. GitLab provides several ways to integrate applications to your Kubernetes cluster. To enable cluster integrations, first add a Kubernetes cluster to a GitLab [project](../project/clusters/index.md) or [group](../group/clusters/index.md) or [instance](../instance/clusters/index.md). You can install your applications manually as shown in the following sections, or use the [Cluster management project template](management_project_template.md) that automates the installation. Although, the [Cluster management project template](management_project_template.md) still requires that you manually do the last steps of this section, [Enable Prometheus integration for your cluster](#enable-prometheus-integration-for-your-cluster). [An issue exists](https://gitlab.com/gitlab-org/gitlab/-/issues/326565) to automate this step. Prometheus cluster integrations can only be enabled for clusters [connected through cluster certificates](../project/clusters/add_existing_cluster.md). To enable Prometheus for your cluster connected through the [GitLab agent](agent/index.md), you can [integrate it manually](../project/integrations/prometheus.md#manual-configuration-of-prometheus). There is no option to enable Elastic Stack for your cluster if it is connected with the GitLab agent. Follow this [issue](https://gitlab.com/gitlab-org/gitlab/-/issues/300230) for updates. ## Prometheus cluster integration > [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/55244) in GitLab 13.11. WARNING: This feature was [deprecated](https://gitlab.com/groups/gitlab-org/configure/-/epics/8) in GitLab 14.5. However, you can **still use** Prometheus for Kubernetes clusters connected to GitLab through the [agent](agent/index.md) by [enabling Prometheus manually](../project/integrations/prometheus.md#manual-configuration-of-prometheus). You can integrate your Kubernetes cluster with [Prometheus](https://prometheus.io/) for monitoring key metrics of your apps directly from the GitLab UI. Once enabled, you can see metrics from services available in the [metrics library](../project/integrations/prometheus_library/index.md). ### Prometheus Prerequisites To use this integration: 1. Prometheus must be installed in your cluster in the `gitlab-managed-apps` namespace. 1. The `Service` resource for Prometheus must be named `prometheus-prometheus-server`. You can manage your Prometheus however you like, but as an example, you can set it up using [Helm](https://helm.sh/) as follows: ```shell # Create the required Kubernetes namespace kubectl create ns gitlab-managed-apps # Download Helm chart values that is compatible with the requirements above. # These are included in the Cluster Management project template. wget https://gitlab.com/gitlab-org/project-templates/cluster-management/-/raw/master/applications/prometheus/values.yaml # Add the Prometheus community Helm chart repository helm repo add prometheus-community https://prometheus-community.github.io/helm-charts # Install Prometheus helm install prometheus prometheus-community/prometheus -n gitlab-managed-apps --values values.yaml ``` Alternatively, you can use your preferred installation method to install Prometheus as long as you meet the requirements above. ### Enable Prometheus integration for your cluster To enable the Prometheus integration for your cluster: 1. Go to the cluster's page: - For a [project-level cluster](../project/clusters/index.md), go to your project's **Infrastructure > Kubernetes clusters**. - For a [group-level cluster](../group/clusters/index.md), go to your group's **Kubernetes** page. - For an [instance-level cluster](../instance/clusters/index.md), go to your instance's **Kubernetes** page. 1. Select the **Integrations** tab. 1. Check the **Enable Prometheus integration** checkbox. 1. Select **Save changes**. 1. Go to the **Health** tab to see your cluster's metrics.