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---
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/engineering/ux/technical-writing/#assignments
---
# Instance clusters API **(FREE SELF)**
> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/36001) in GitLab 13.2.
Instance-level Kubernetes clusters allow you to connect a Kubernetes cluster to the GitLab instance, which enables you to use the same cluster across multiple projects. [More information](../user/instance/clusters/index.md)
NOTE:
Users need administrator access to use these endpoints.
## List instance clusters
Returns a list of instance clusters.
```plaintext
GET /admin/clusters
```
Example request:
```shell
curl --header "Private-Token: <your_access_token>" "https://gitlab.example.com/api/v4/admin/clusters"
```
Example response:
```json
[
{
"id": 9,
"name": "cluster-1",
"created_at": "2020-07-14T18:36:10.440Z",
"managed": true,
"enabled": true,
"domain": null,
"provider_type": "user",
"platform_type": "kubernetes",
"environment_scope": "*",
"cluster_type": "instance_type",
"user": {
"id": 1,
"name": "Administrator",
"username": "root",
"state": "active",
"avatar_url": "https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon",
"web_url": "https://gitlab.example.com/root"
},
"platform_kubernetes": {
"api_url": "https://example.com",
"namespace": null,
"authorization_type": "rbac",
"ca_cert":"-----BEGIN CERTIFICATE-----IxMDM1MV0ZDJkZjM...-----END CERTIFICATE-----"
},
"provider_gcp": null,
"management_project": null
},
{
"id": 10,
"name": "cluster-2",
"created_at": "2020-07-14T18:39:05.383Z",
"domain": null,
"provider_type": "user",
"platform_type": "kubernetes",
"environment_scope": "staging",
"cluster_type": "instance_type",
"user": {
"id": 1,
"name": "Administrator",
"username": "root",
"state": "active",
"avatar_url": "https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon",
"web_url": "https://gitlab.example.com/root"
},
"platform_kubernetes": {
"api_url": "https://example.com",
"namespace": null,
"authorization_type": "rbac",
"ca_cert":"-----BEGIN CERTIFICATE-----LzEtMCadtaLGxcsGAZjM...-----END CERTIFICATE-----"
},
"provider_gcp": null,
"management_project": null
},
{
"id": 11,
"name": "cluster-3",
...
}
]
```
## Get a single instance cluster
Returns a single instance cluster.
Parameters:
| Attribute | Type | Required | Description |
| ------------ | ------- | -------- | --------------------- |
| `cluster_id` | integer | yes | The ID of the cluster |
```plaintext
GET /admin/clusters/:cluster_id
```
Example request:
```shell
curl --header "Private-Token: <your_access_token>" "https://gitlab.example.com/api/v4/admin/clusters/9"
```
Example response:
```json
{
"id": 9,
"name": "cluster-1",
"created_at": "2020-07-14T18:36:10.440Z",
"managed": true,
"enabled": true,
"domain": null,
"provider_type": "user",
"platform_type": "kubernetes",
"environment_scope": "*",
"cluster_type": "instance_type",
"user": {
"id": 1,
"name": "Administrator",
"username": "root",
"state": "active",
"avatar_url": "https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon",
"web_url": "https://gitlab.example.com/root"
},
"platform_kubernetes": {
"api_url": "https://example.com",
"namespace": null,
"authorization_type": "rbac",
"ca_cert":"-----BEGIN CERTIFICATE-----IxMDM1MV0ZDJkZjM...-----END CERTIFICATE-----"
},
"provider_gcp": null,
"management_project": null
}
```
## Add existing instance cluster
Adds an existing Kubernetes instance cluster.
```plaintext
POST /admin/clusters/add
```
Parameters:
| Attribute | Type | Required | Description |
| ---------------------------------------------------- | ------- | -------- | ----------------------------------------------------------------------------------------------------- |
| `name` | string | yes | The name of the cluster |
| `domain` | string | no | The [base domain](../user/project/clusters/gitlab_managed_clusters.md#base-domain) of the cluster |
| `environment_scope` | string | no | The associated environment to the cluster. Defaults to `*` |
| `management_project_id` | integer | no | The ID of the [management project](../user/clusters/management_project.md) for the cluster |
| `enabled` | boolean | no | Determines if cluster is active or not, defaults to `true` |
| `managed` | boolean | no | Determines if GitLab manages namespaces and service accounts for this cluster. Defaults to `true` |
| `platform_kubernetes_attributes[api_url]` | string | yes | The URL to access the Kubernetes API |
| `platform_kubernetes_attributes[token]` | string | yes | The token to authenticate against Kubernetes |
| `platform_kubernetes_attributes[ca_cert]` | string | no | TLS certificate. Required if API is using a self-signed TLS certificate. |
| `platform_kubernetes_attributes[namespace]` | string | no | The unique namespace related to the project |
| `platform_kubernetes_attributes[authorization_type]` | string | no | The cluster authorization type: `rbac`, `abac` or `unknown_authorization`. Defaults to `rbac`. |
Example request:
```shell
curl --header "Private-Token:<your_access_token>" "http://gitlab.example.com/api/v4/admin/clusters/add" \
-H "Accept:application/json" \
-H "Content-Type:application/json" \
-X POST --data '{"name":"cluster-3", "environment_scope":"production", "platform_kubernetes_attributes":{"api_url":"https://example.com", "token":"12345", "ca_cert":"-----BEGIN CERTIFICATE-----qpoeiXXZafCM0ZDJkZjM...-----END CERTIFICATE-----"}}'
```
Example response:
```json
{
"id": 11,
"name": "cluster-3",
"created_at": "2020-07-14T18:42:50.805Z",
"managed": true,
"enabled": true,
"domain": null,
"provider_type": "user",
"platform_type": "kubernetes",
"environment_scope": "production",
"cluster_type": "instance_type",
"user": {
"id": 1,
"name": "Administrator",
"username": "root",
"state": "active",
"avatar_url": "https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon",
"web_url": "http://gitlab.example.com:3000/root"
},
"platform_kubernetes": {
"api_url": "https://example.com",
"namespace": null,
"authorization_type": "rbac",
"ca_cert":"-----BEGIN CERTIFICATE-----qpoeiXXZafCM0ZDJkZjM...-----END CERTIFICATE-----"
},
"provider_gcp": null,
"management_project": null
}
```
## Edit instance cluster
Updates an existing instance cluster.
```shell
PUT /admin/clusters/:cluster_id
```
Parameters:
| Attribute | Type | Required | Description |
| ------------------------------------------- | ------- | -------- | ------------------------------------------------------------------------------------------ |
| `cluster_id` | integer | yes | The ID of the cluster |
| `name` | string | no | The name of the cluster |
| `domain` | string | no | The [base domain](../user/project/clusters/gitlab_managed_clusters.md#base-domain) of the cluster |
| `environment_scope` | string | no | The associated environment to the cluster |
| `management_project_id` | integer | no | The ID of the [management project](../user/clusters/management_project.md) for the cluster |
| `enabled` | boolean | no | Determines if cluster is active or not |
| `managed` | boolean | no | Determines if GitLab manages namespaces and service accounts for this cluster |
| `platform_kubernetes_attributes[api_url]` | string | no | The URL to access the Kubernetes API |
| `platform_kubernetes_attributes[token]` | string | no | The token to authenticate against Kubernetes |
| `platform_kubernetes_attributes[ca_cert]` | string | no | TLS certificate. Required if API is using a self-signed TLS certificate. |
| `platform_kubernetes_attributes[namespace]` | string | no | The unique namespace related to the project |
NOTE:
`name`, `api_url`, `ca_cert` and `token` can only be updated if the cluster was added
through the [Add existing Kubernetes cluster](../user/project/clusters/add_remove_clusters.md#add-existing-cluster) option or
through the [Add existing instance cluster](#add-existing-instance-cluster) endpoint.
Example request:
```shell
curl --header "Private-Token: <your_access_token>" "http://gitlab.example.com/api/v4/admin/clusters/9" \
-H "Content-Type:application/json" \
-X PUT --data '{"name":"update-cluster-name", "platform_kubernetes_attributes":{"api_url":"https://new-example.com","token":"new-token"}}'
```
Example response:
```json
{
"id": 9,
"name": "update-cluster-name",
"created_at": "2020-07-14T18:36:10.440Z",
"managed": true,
"enabled": true,
"domain": null,
"provider_type": "user",
"platform_type": "kubernetes",
"environment_scope": "*",
"cluster_type": "instance_type",
"user": {
"id": 1,
"name": "Administrator",
"username": "root",
"state": "active",
"avatar_url": "https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon",
"web_url": "https://gitlab.example.com/root"
},
"platform_kubernetes": {
"api_url": "https://new-example.com",
"namespace": null,
"authorization_type": "rbac",
"ca_cert":"-----BEGIN CERTIFICATE-----IxMDM1MV0ZDJkZjM...-----END CERTIFICATE-----"
},
"provider_gcp": null,
"management_project": null,
"project": null
}
```
## Delete instance cluster
Deletes an existing instance cluster.
```plaintext
DELETE /admin/clusters/:cluster_id
```
Parameters:
| Attribute | Type | Required | Description |
| ------------ | ------- | -------- | --------------------- |
| `cluster_id` | integer | yes | The ID of the cluster |
Example request:
```shell
curl --request DELETE --header "Private-Token: <your_access_token>" "https://gitlab.example.com/api/v4/admin/clusters/11"
```
|
