139 lines
6 KiB
Markdown
139 lines
6 KiB
Markdown
---
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stage: Configure
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group: Configure
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info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
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---
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# Cluster integrations **(FREE)**
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GitLab provides several ways to integrate applications to your
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Kubernetes cluster.
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To enable cluster integrations, first add a Kubernetes cluster to a GitLab
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[project](../project/clusters/add_remove_clusters.md) or
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[group](../group/clusters/index.md#group-level-kubernetes-clusters) or
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[instance](../instance/clusters/index.md).
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You can install your applications manually as shown in the following sections, or use the
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[Cluster management project template](management_project_template.md) that automates the
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installation.
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Although, the [Cluster management project template](management_project_template.md) still
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requires that you manually do the last steps of these sections,
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[Enable Prometheus integration for your cluster](#enable-prometheus-integration-for-your-cluster)
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or [Enable Elastic Stack integration for your cluster](#enable-elastic-stack-integration-for-your-cluster)
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depending on which application you are installing. [An issue exists](https://gitlab.com/gitlab-org/gitlab/-/issues/326565)
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to automate this step.
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## Prometheus cluster integration
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> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/55244) in GitLab 13.11.
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You can integrate your Kubernetes cluster with
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[Prometheus](https://prometheus.io/) for monitoring key metrics of your
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apps directly from the GitLab UI.
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[Alerts](../../operations/metrics/alerts.md) can be configured the same way as
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for [external Prometheus instances](../../operations/metrics/alerts.md#external-prometheus-instances).
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Once enabled, you can see metrics from services available in the
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[metrics library](../project/integrations/prometheus_library/index.md).
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### Prometheus Prerequisites
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To use this integration:
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1. Prometheus must be installed in your cluster in the `gitlab-managed-apps` namespace.
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1. The `Service` resource for Prometheus must be named `prometheus-prometheus-server`.
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You can manage your Prometheus however you like, but as an example, you can set
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it up using [Helm](https://helm.sh/) as follows:
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```shell
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# Create the required Kubernetes namespace
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kubectl create ns gitlab-managed-apps
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# Download Helm chart values that is compatible with the requirements above.
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# These are included in the Cluster Management project template.
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wget https://gitlab.com/gitlab-org/project-templates/cluster-management/-/raw/master/applications/prometheus/values.yaml
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# Add the Prometheus community Helm chart repository
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helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
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# Install Prometheus
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helm install prometheus prometheus-community/prometheus -n gitlab-managed-apps --values values.yaml
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```
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Alternatively, you can use your preferred installation method to install
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Prometheus as long as you meet the requirements above.
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### Enable Prometheus integration for your cluster
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To enable the Prometheus integration for your cluster:
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1. Go to the cluster's page:
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- For a [project-level cluster](../project/clusters/index.md), navigate to your project's
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**Infrastructure > Kubernetes clusters**.
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- For a [group-level cluster](../group/clusters/index.md), navigate to your group's
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**Kubernetes** page.
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- For an [instance-level cluster](../instance/clusters/index.md), navigate to your instance's
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**Kubernetes** page.
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1. Select the **Integrations** tab.
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1. Check the **Enable Prometheus integration** checkbox.
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1. Click **Save changes**.
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1. Go to the **Health** tab to see your cluster's metrics.
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## Elastic Stack cluster integration
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> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/61077) in GitLab 13.12.
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You can integrate your cluster with [Elastic
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Stack](https://www.elastic.co/elastic-stack/) to index and [query your pod
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logs](../project/clusters/kubernetes_pod_logs.md).
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### Elastic Stack Prerequisites
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To use this integration:
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1. Elasticsearch 7.x or must be installed in your cluster in the
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`gitlab-managed-apps` namespace.
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1. The `Service` resource must be called `elastic-stack-elasticsearch-master`
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and expose the Elasticsearch API on port `9200`.
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1. The logs are expected to be [Filebeat container logs](https://www.elastic.co/guide/en/beats/filebeat/7.x/filebeat-input-container.html)
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following the [7.x log structure](https://www.elastic.co/guide/en/beats/filebeat/7.x/exported-fields-log.html)
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and include [Kubernetes metadata](https://www.elastic.co/guide/en/beats/filebeat/7.x/add-kubernetes-metadata.html).
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You can manage your Elastic Stack however you like, but as an example, you can
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use [this Elastic Stack chart](https://gitlab.com/gitlab-org/charts/elastic-stack) to get up and
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running:
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```shell
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# Create the required Kubernetes namespace
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kubectl create namespace gitlab-managed-apps
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# Download Helm chart values that is compatible with the requirements above.
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# These are included in the Cluster Management project template.
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wget https://gitlab.com/gitlab-org/project-templates/cluster-management/-/raw/master/applications/elastic-stack/values.yaml
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# Add the GitLab Helm chart repository
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helm repo add gitlab https://charts.gitlab.io
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# Install Elastic Stack
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helm install elastic-stack gitlab/elastic-stack -n gitlab-managed-apps --values values.yaml
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```
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### Enable Elastic Stack integration for your cluster
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To enable the Elastic Stack integration for your cluster:
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1. Go to the cluster's page:
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- For a [project-level cluster](../project/clusters/index.md), navigate to your project's
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**Infrastructure > Kubernetes clusters**.
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- For a [group-level cluster](../group/clusters/index.md), navigate to your group's
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**Kubernetes** page.
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- For an [instance-level cluster](../instance/clusters/index.md), navigate to your instance's
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**Kubernetes** page.
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1. Select the **Integrations** tab.
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1. Check the **Enable Elastic Stack integration** checkbox.
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1. Click **Save changes**.
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1. Go to the **Health** tab to see your cluster's metrics.
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