Enterprise Kubernetes, delivered

Tectonic ships with CoreOS's signature automated operations, runs multi-cloud, and is the fastest, most secure path to Kubernetes.

Tectonic FAQ

Tectonic release versioning

The version number of a Tectonic release is a string in the format W.X.Y-tectonic.z, where W.X.Y stands for the Kubernetes version included with the release, and z is an incrementing number, starting at 1, for successive Tectonic releases including that Kubernetes version. When the version number of the included Kubernetes release changes, the incrementing value z resets to 1.

For example, if the Kubernetes version is 1.5.6, the first Tectonic production release including it is labeled 1.5.6-tectonic.1. A second release including the same 1.5.6 version of Kubernetes would be 1.5.6-tectonic.2. When the version number of the included Kubernetes advances to 1.5.7, the associated Tectonic version number would be 1.5.7-tectonic.1.

Can I use my license on multiple clusters?

Yes, a single license can be used on multiple clusters, as long as the total limits on that license are not exceeded.

What happens when I exceed my license limits?

Once your cluster is larger than your license allows, the Console will prompt you to input an updated license. Enter the new license in the dialog box that is shown. The new license limits will take a few minutes to take effect, but applications on the cluster will continue to run.

Console showing a cluster that has exceeded capacity

Visit coreos.com/contact for an updated license.

How can I recover from a Tectonic Identity misconfiguration?

If you have misconfigured Tectonic Identity, it is possible to be temporarily locked out of your cluster. To correct the misconfiguration, use the credentials in the assets bundle generated during installation to revert or correct your user and RBAC configuration.

"license does not contain any active Tectonic subscriptions"

When launching up your Tectonic cluster, you may run into this error:

Console showing a cluster that has exceeded capacity

This is encountered in a few situations:

  • The usage of Tectonic Starter.
  • The use of an expired license.

If you previously had a Tectonic Starter license, you can still use Tectonic for free on up to 10 nodes. Simply sign up for CoreOS Tectonic and use the newly generated license within the installer.

There is no upgrade path between the Tectonic Starter and CoreOS Tectonic licenses. You must obtain a CoreOS Tectonic license and deploy a new Tectonic cluster with your regenerated license.

What Services are Installed with Tectonic?

Tectonic Services are the applications that are installed into your cluster. These include:

Name Description
Tectonic Console Web management console for Kubernetes and the services themselves
Tectonic Identity Centralized user management for services on your cluster
Prometheus Complete cluster monitoring: instrumentation, collection, and querying.

If you have any unanswered questions about Tectonic visit coreos.com/contact.