Kubernetes, also known as K8s, is an open-source system for automating deployment, scaling, and managing containerized applications. A K8s installation is required to deploy PrimeHub and required services.

In this section you will do the following.

1. Ensure your existing Kubernetes installation is ready for PrimeHub
2. Install a single-node (Microk8s) or multi-node (Rancher rke) cluster
3. Label nodes and configure Kubernetes nodes

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Verify or install Kubernetes

If you already have a Kubernetes installation you need to verify a few things to ensure its ready for PrimeHub.

If you do not have a Kubernetes installation, instructions for installing either a single-node or multi-node cluster are provided below.

If you have already installed Kubernetes

To ensure your Kubernetes installation is ready for PrimeHub, verify the following.

• You can use kubectl to control the Kubernetes system.
• The nodes in your k8s installation are reported correctly.

The following command can be used to verify these two requirements.

$ kubectl get nodes -o wide
NAME            STATUS   ROLES    AGE   VERSION                    INTERNAL-IP   EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION   CONTAINER-RUNTIME
ip-10-40-0-11   Ready    <none>   22h   v1.21.8-3+b8dc41df93b196   10.40.0.11    <none>        Ubuntu 18.04.5 LTS   5.4.0-1051-aws   containerd://1.4.4

Lastly, the default namespace scope for PrimeHub is ‘hub’. Ensure this namespace is not currently in use.

If you need to install Kubernetes (k8s)