Continental Innovates with Rancher and Kubernetes
You can create a cluster from an RKE template that you created, or from a template that has been shared with you.
RKE templates can be applied to new clusters.
As of Rancher v2.3.3, you can save the configuration of an existing cluster as an RKE template. Then the cluster’s settings can only be changed if the template is updated.
You can’t change a cluster to use a different RKE template. You can only update the cluster to a new revision of the same template.
This section covers the following topics:
To add a cluster hosted by an infrastructure provider using an RKE template, use these steps:
When the template owner creates a template, each setting has a switch in the Rancher UI that indicates if users can override the setting.
If a cluster was created from an RKE template, you can edit the cluster to update the cluster to a new revision of the template.
As of Rancher v2.3.3, an existing cluster’s settings can be saved as an RKE template. In that situation, you can also edit the cluster to update the cluster to a new revision of the template.
Note: You can’t change the cluster to use a different RKE template. You can only update the cluster to a new revision of the same template.
Available as of v2.3.3
This section describes how to create an RKE template from an existing cluster.
RKE templates cannot be applied to existing clusters, except if you save an existing cluster’s settings as an RKE template. This exports the cluster’s settings as a new RKE template, and also binds the cluster to that template. The result is that the cluster can only be changed if the template is updated, and the cluster is upgraded to use a newer version of the template.
To convert an existing cluster to use an RKE template,
Results: