initial check in for a gang of cluster creation and general configuration docs.

This commit is contained in:
Mark Bishop
2018-04-19 17:05:23 -07:00
committed by Denise Schannon
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<blockquote>
<p>
<strong>Prerequisites:</strong> Review the [requirements](placeholder.md) for your Linux host.
</p>
</blockquote>
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<span>Rancher</span>
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<div>
<p><strong>Result:</strong></p>
<ul>
<li>Your cluster is created and assigned a state of <strong>Provisioning</strong>. Rancher is standing up your cluster.</li>
<li>You can access your cluster after its state is updated to <strong>Active</strong>.</li>
<li><strong>Active</strong> clusters are assigned a Project and Namespace, both of which are named <code>Default</code>.</li>
</ul>
</div>
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<div><p>Use <strong>Cluster Options</strong> to choose the version of Kubernetes installed on each cluster node, along with some other options for you cluster.</p></div>
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<div>
<p>Use <strong>Member Roles</strong> to configure user authorization for the cluster.</p>
<ul>
<li>Click <strong>Add Members</strong> to add users that can access the cluster.</li>
<li>Use the <strong>Role</strong> drop-down to set permissions for each user.</li>
</ul>
<br/>
</div>
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<p>Add one or more <strong>Node Pools</strong> to your cluster. A <em>node pool</em> is a set of virtual machines configured identically to your Linux host. However, each node in the pool also has additional Kubernetes master and worker components installed.<p>
<blockquote>
<p><strong>Notes:</strong></p>
<ul>
<li>After you create each node template, you can use it to create additional node pools.</li>
<li>Each Kubernetes role (i.e. <code>etcd</code>, <code>Control</code>, and <code>Worker</code>) must be filled. You can either apply all three roles to one pool or spread them around.</li>
<li>Ideally, you should have at least three <code>etcd</code> nodes so that your cluster can fail over to another if a etcd node goes down.</li>
</ul>
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<p>Complete the <strong>Rancher Template</strong> form to add metadata so that you can find your template in Rancher later.</p>
<ul>
<li>
<p><strong>Labels</strong> apply metadata to your Docker objects.</p>
<p><a href="https://docs.docker.com/config/labels-custom-metadata/">Docker object label documentation</a></p>
</li>
<li>
<!-- TODO: Improve the engine options -->
<p><strong>Engine Options</strong> customize the configuration of the <a href="https://docs.docker.com/engine/docker-overview/#the-docker-daemon">Docker daemon</a>.</p>
<p><a href="https://docs.docker.com/engine/reference/commandline/dockerd/">daemon option reference</a></p>
</li>
</ul>
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<span>v2.0</span>