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Mark Bishop
2018-07-18 18:19:19 -07:00
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content/rancher/v2.x/en/cluster-provisioning/rke-clusters/options/_index.md
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---
As you configure a new cluster that's provisioned using RKE, you can choose custom Kubernetes options.
As you configure a new cluster that's provisioned using [RKE]({{< baseurl >}}/rke/v0.1.x/en/), you can choose custom Kubernetes options.
You can configure Kubernetes options one of two ways:
- [Rancher UI](#rancher-ui): Use the Rancher UI to select options that are commonly customized when setting up a Kubernetes cluster.
- [Config File](#config-file): Alternatively, you can create a RKE config file to customize any option offered by Kubernetes.
- [Config File](#config-file): Alternatively, you can create a [RKE config file]({{< baseurl >}}/rke/v0.1.x/en/config-options/) to customize any option offered by Kubernetes.
## Rancher UI
@@ -20,23 +20,24 @@ From this section you can choose:
- Whether your nodes allow installation of an unsupported version of Docker (i.e., a version not listed in the Rancher requirements).
- The <a href='https://kubernetes.io/docs/concepts/cluster-administration/networking/' target='_blank'>Network Provider</a> that the cluster uses. Out of the box, Rancher supports:
- The [Network Provider](https://kubernetes.io/docs/concepts/cluster-administration/networking/) that the cluster uses. Out of the box, Rancher supports:
- <a href='https://github.com/coreos/flannel#flannel' target='_blank'>Flannel</a>
- [Flannel](https://github.com/coreos/flannel#flannel)
- <a href='https://docs.projectcalico.org/v3.1/introduction/' target='_blank'>Calico</a>
- [Calico](https://docs.projectcalico.org/v3.1/introduction/)
- <a href='https://github.com/projectcalico/canal' target='_blank'>Canal</a> (default)
- [Canal] (https://github.com/projectcalico/canal) (default)
- Whether or not to use a <a href='{{< baseurl >}}/rancher/v2.x/en/cluster-provisioning/rke-clusters/options/cloud-providers'>cloud provider</a>.
- Whether or not to use a [cloud provider]({{< baseurl >}}/rancher/v2.x/en/cluster-provisioning/rke-clusters/options/cloud-providers).
- Whether or not to use a <a href='{{< baseurl >}}/rancher/v2.x/en/admin-settings/pod-security-policies'>pod security policy</a>. You must have an existing pod security policy configured before you can use this option.
- Whether or not to use a [pod security policy]({{< baseurl >}}/rancher/v2.x/en/admin-settings/pod-security-policies). You must have an existing pod security policy configured before you can use this option.
## Config File
Instead of using the Rancher UI to choose Kubernetes options for the cluster, advanced users can create an RKE config file. Using a config file allows you to set any of the <a href='/rke/v0.1.x/en/config-options/' >options available</a> in an RKE installation.
Instead of using the Rancher UI to choose Kubernetes options for the cluster, advanced users can create an RKE config file. Using a config file allows you to set any of the [options available]({{< baseurl >}}/rke/v0.1.x/en/config-options/) in an RKE installation.
- To edit an RKE config file directly from the Rancher UI, click **Edit as YAML**.
- To read from an existing RKE file, click **Read from File**.
For an example of RKE config file syntax, see the <a href='{{< baseurl >}}/rke/v0.1.x/en/example-yamls/'>RKE documentation</a>.
For an example of RKE config file syntax, see the [RKE documentation]({{< baseurl >}}/rke/v0.1.x/en/example-yamls/).