terraform/website/source/docs/providers/google/r/container_cluster.html.markdown

---
layout: "google"
page_title: "Google: google_container_cluster"
sidebar_current: "docs-google-container-cluster"
description: |-
  Creates a GKE cluster.
---

# google\_container\_cluster

!> **Warning:** Due to limitations of the API, all arguments except
`node_version` are non-updateable. Changing any will cause recreation of the
whole cluster!

## Example usage

```js
resource "google_container_cluster" "primary" {
  name = "marcellus-wallace"
  zone = "us-central1-a"
  initial_node_count = 3

  additional_zones = [
    "us-central1-b",
    "us-central1-c"
  ]

  master_auth {
    username = "mr.yoda"
    password = "adoy.rm"
  }

  node_config {
    oauth_scopes = [
      "https://www.googleapis.com/auth/compute",
      "https://www.googleapis.com/auth/devstorage.read_only",
      "https://www.googleapis.com/auth/logging.write",
      "https://www.googleapis.com/auth/monitoring"
    ]
  }
}
```

## Argument Reference

* `initial_node_count` - (Required) The number of nodes to create in this
    cluster (not including the Kubernetes master).

* `master_auth` - (Required) The authentication information for accessing the
    Kubernetes master.

* `name` - (Required) The name of the cluster, unique within the project and
    zone.

* `zone` - (Required) The zone that the master and the number of nodes specified
    in `initial_node_count` should be created in.

- - -
* `additional_zones` - (Optional) If additional zones are configured, the number
    of nodes specified in `initial_node_count` is created in all specified zones.

* `addons_config` - (Optional) The configuration for addons supported by Google
    Container Engine

* `cluster_ipv4_cidr` - (Optional) The IP address range of the container pods in
    this cluster. Default is an automatically assigned CIDR.

* `description` - (Optional) Description of the cluster.

* `logging_service` - (Optional) The logging service that the cluster should
    write logs to. Available options include `logging.googleapis.com` and
    `none`. Defaults to `logging.googleapis.com`

* `monitoring_service` - (Optional) The monitoring service that the cluster
    should write metrics to. Available options include
    `monitoring.googleapis.com` and `none`. Defaults to
    `monitoring.googleapis.com`

* `network` - (Optional) The name or self_link of the Google Compute Engine
    network to which the cluster is connected

* `node_config` -  (Optional) The machine type and image to use for all nodes in
    this cluster

* `node_version` - (Optional) The Kubernetes version on the nodes. Also affects
    the initial master version on cluster creation. Updates affect nodes only. 
    Defaults to the default version set by GKE which is not necessarily the latest 
    version.

* `project` - (Optional) The project in which the resource belongs. If it
    is not provided, the provider project is used.

* `subnetwork` - (Optional) The name of the Google Compute Engine subnetwork in
which the cluster's instances are launched

**Master Auth** supports the following arguments:

* `password` - The password to use for HTTP basic authentication when accessing
    the Kubernetes master endpoint

* `username` - The username to use for HTTP basic authentication when accessing
    the Kubernetes master endpoint

**Node Config** supports the following arguments:

* `machine_type` - (Optional) The name of a Google Compute Engine machine type.
    Defaults to `n1-standard-1`.

* `disk_size_gb` - (Optional) Size of the disk attached to each node, specified
    in GB. The smallest allowed disk size is 10GB. Defaults to 100GB.

* `oauth_scopes` - (Optional) The set of Google API scopes to be made available
    on all of the node VMs under the "default" service account. These can be
    either FQDNs, or scope aliases. The following scopes are necessary to ensure
    the correct functioning of the cluster:

  * `compute-rw` (`https://www.googleapis.com/auth/compute`)
  * `storage-ro` (`https://www.googleapis.com/auth/devstorage.read_only`)
  * `logging-write` (`https://www.googleapis.com/auth/logging.write`),
    if `logging_service` points to Google
  * `monitoring` (`https://www.googleapis.com/auth/monitoring`),
    if `monitoring_service` points to Google

**Addons Config** supports the following addons:

* `http_load_balancing` - (Optional) The status of the HTTP Load Balancing
    add-on. It is enabled by default; set `disabled = true` to disable.
* `horizontal_pod_autoscaling` - (Optional) The status of the Horizontal Pod
    Autoscaling addon. It is enabled by default; set `disabled = true` to
    disable.

This example `addons_config` disables both addons:

```
addons_config {
  http_load_balancing {
    disabled = true
  }
  horizontal_pod_autoscaling {
    disabled = true
  }
}
```

## Attributes Reference

In addition to the arguments listed above, the following computed attributes are
exported:

* `endpoint` - The IP address of this cluster's Kubernetes master

* `instance_group_urls` - List of instance group URLs which have been assigned
    to the cluster

* `master_auth.client_certificate` - Base64 encoded public certificate
    used by clients to authenticate to the cluster endpoint.

* `master_auth.client_key` - Base64 encoded private key used by clients
    to authenticate to the cluster endpoint

* `master_auth.cluster_ca_certificate` - Base64 encoded public certificate
    that is the root of trust for the cluster