Install K3S

Install K3S in a server

You can install OpenServerless as described here, and you do not need to install any Kubernetes in it, as it is installed as part of the procedure. In this case it installs K3S.

Or you can install K3S in advance, and then proceed configuring and then installing OpenServerless as in any other Kubernetes cluster.

Installing K3S in a server

Before installing ensure you have satified the prerequisites, most notably:

1. you know the IP address or DNS name

2. your server operating system satisfies the K3S requirements

3. you have passwordless access with ssh

4. you have a user with passwordless sudo rights

5. you have opened the port 6443 in the firewall

Then you can use the following subcommand to install in the server:

ops cloud k3s create <server> [<username>]

where <server> is the IP address or DNS name to access the server, and the optional <username> is the user you use to access the server: if is not specified, the root username will be used.

Those pieces of information should have been provided when provisioning the server.

❗ IMPORTANT

If you installed a Kubernetes cluster in the server this way, you should proceed installing OpenServerless as in a Kubernetes cluster, not as a server.

The installation retrieves also a Kubernetes configuration file, so you can proceed to installing it without any other step involved.

Additional Commands

In addition to create the following subcommands are also available:

• ops cloud k3s delete <server> [<username>]: uninstall K3S from the server

• ops cloud k3s kubeconfig <server> [<username>]: retrieve the kubeconfig from the K3S server

• ops cloud k3s info: some information about the server

• ops cloud k3s status: status of the server