Cluster Node Requirements

The cluster nodes on which Kubernetes is going to be installed when deploying WKP on the wks-ssh track, have a set of requirements.

Host OS

wk supports the following host OSes:

• CentOS 7.4
• CentOS 7.5
• CentOS 7.6
• RHEL 7.4
• RHEL 7.5
• RHEL 7.6
• Ubuntu 18.04
• Ubuntu 20.04

SSH User

In addition, hosts need to have:

• SSH access
• A user able to login with SSH and with password-less sudo permissions

Network Ports

Finally, ensure that the following ports are open on the hosts:

• 6443 (kubernetes api server)
• 2379-2380 (etcd)
• 6783-6784 (weave net)
• 10250 (container logs)
• 32000-32767 (node ports)