K3s Advanced Configurations and Management
This chapter covers more advanced configurations for your K3s clusters. By default, K3s includes a load balancer called KlipperLB, but it has some limitations. For example, you don't have to repeat a port while creating a service, and it affects the way that you use a regular load balancer and NodePort service. It works well for simple deployments. In case you need another load balancer instead of Klipper, we cover how to install MetalLB, a bare metal load balancer. Then, we cover how to use advanced storage configuration to support read/write access modes for storage volumes with Longhorn, substituting the default local storage class provided by K3s. After this, we will do some common cluster management, including upgrading K3s, backing up, and restoring the cluster.
In this chapter, we're going to cover the following main topics:
- Bare metal load balancer with MetalLB
- Setting up Longhorn for storage
- Upgrading...
