Creating a cluster is essential for any further tutorial.
Every tutorial will require a working MetaKube cluster.
Each cluster is tied to a project.
In order to create a cluster, you need to have the "Owner" or "Editor" role in a MetaKube Project.
You can create as many clusters within one project as you want.
Choose the provider and the region in which you want to create your cluster.
Start by choosing a cloud provider and region, then click Next:
In the next step of the installer, enter your cluster details into the Cluster tab.
The mandatory fields are:
By default, Metakube will automatically set up the following Openstack resources for a new cluster:
metakube-<cluster id>with IPv4 subnet
metakube-<cluster-id>with subnet CIDR
metakube-<cluster-id>for the worker nodes with all necessary rules
metakube-<cluster-id>with soft-anti-affinity to spread nodes across different hardware nodes
Please do not change any Advanced Configuration settings if you do not have any special requirements.
For more information see Advanced Configuration
In the next step of the installer, enter your cluster details into the
The only mandatory fields are for the credentials and the project.
Please note that the credentials in the screenshots have been redacted.
Then add your cloud credentials the
You have the option to use Openstack Application Credentials or Username, Password and Tenant combination.
We suggest to use application credentials because they are not user bound, and they allow you to have single purpose access data that you will not need to change if you, for example, change your password.
For node settings we recommend at least 3 nodes sized
m1.small or bigger. For an overview of the possible node flavors see the SysEleven Stack documentation. It is also possible to choose the operating system and image used for your worker nodes:
We provide Ubuntu and Flatcar for your cluster nodes OS, with Ubuntu as default. You can also choose a different image available at your Openstack tenant. To get a list of base images, navigate to
Project -> Compute -> Images in the SysEleven Stack dashboard:
Make sure to enter the exact name of the image you want to run on your machines, as listed in the images tab of the SysEleven stack dashboard. See also supported operating systems.
The chosen SSH key added in the
Cluster tab will be used for authentication for the default user (e.g.
ubuntu for Ubuntu images) on all worker nodes.
The summare screen gives you an overview of the data you provided in the previous tabs and some of the default values which will be used for the cluster generation.
Just click Create Cluster for the actual generation.
The process might take a few minutes during which the the status of all components will gradually change to green
Please note that "CoreDNS" might get a red status for a while, but will switch to green, once the first nodes have joined the cluster.
After all of the master components are ready, your cluster will create the configured number of worker nodes in your SysEleven Stack tenant. Fully created nodes will be marked with a green dot, pending ones with a yellow circle. You can then download the kubeconfig by clicking the button
Download Config to be able to use
kubectl with your cluster. After all nodes are created you can use
kubectl to view and check the status of the created nodes:
$ kubectl get nodes NAME STATUS ROLES AGE VERSION tutorial-5bd864df7c-hvbkl Ready <none> 63m v1.23.8 tutorial-5bd864df7c-hztvf Ready <none> 63m v1.23.8 tutorial-5bd864df7c-x586s Ready <none> 63m v1.23.8
There is no clean-up for this tutorial, because you will need this for all further tutorials.