From 6f59a75556d5d1836ca5be1d7f8938f55612de81 Mon Sep 17 00:00:00 2001
From: Mark Bishop <mark@rancher.com>
Date: Wed, 18 Jul 2018 16:06:28 -0700
Subject: [PATCH] adding cluster option docs

---
 .../rke-clusters/options/_index.md            | 29 ++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/options/_index.md b/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/options/_index.md
index d24363a15a8..05178979e67 100644
--- a/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/options/_index.md
+++ b/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/options/_index.md
@@ -12,4 +12,31 @@ You can configure K8s options one of two ways:
 
 ## Rancher UI
 
-## Config File
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+When creating a cluster using one of the options described in [Rancher Launched Kubenernetes]({{< baseurl >}}/rancher/v2.x/en/cluster-provisioning/rke-clusters), you can configure basic K8s options using the **Cluster Options** section.
+
+From this section allows you choose:
+
+- The version of Kubernetes installed on your cluster nodes. Rancher uses its own version of Kubernetes based on [hyperkube](https://hub.docker.com/r/kubernetesonarm/hyperkube/), but packaged with more utilities.
+
+- 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:
+    
+    - <a href='https://github.com/coreos/flannel#flannel' target='_blank'>Flannel</a>
+    
+    - <a href='https://docs.projectcalico.org/v3.1/introduction/' target='_blank'>Calico</a>
+    
+    - <a href='https://github.com/projectcalico/canal' target='_blank'>Canal</a> (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 <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.
+
+## Config File
+
+Instead of using the Rancher UI to choose K8s 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.
+
+- 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>.  
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