I have a question, i couldn't find rancher (experimental) in add-ons. What should i do ?

Can you please explain in more detail what you want to do? I believe that there has been a mix-up and misunderstanding.

You know in the process of harvester node installation (first node) i was trying to enable the addon rancher (experimental) but it doesn't show i the list

I'm sorry i still need to guess what you are talking about. We have a GH repo https://github.com/harvester/experimental-addons which contains experimental addons. There is an addon called

rancher-vcluster

which you might talking about. Here are the docs: https://docs.harvesterhci.io/v1.5/advanced/addons/rancher-vcluster

That correct you're in the right path 😄

The documentation tells you which kubectl command to run to add it to your addons page.

Should i run this in the CLI ?

Should i run this in the CLI ?

Yes please. Run it on the a node directly or from your host if you've installed the kubeconfig from the cluster.

Side question, why should i need rancher, harvester doesn't run HA over nodes ?

If you need Rancher depends on your requirements. To run Harvester you do not need it. Harvester provides an embedded Rancher to make it easy to administrate the K8s base of Harvester. A standalone Rancher is useful if you have additional K8s clusters that you want to manage easily via UI. You can then connect your Harvester to Rancher. Please check https://docs.harvesterhci.io/v1.5/rancher/rancher-integration for more details.

"Rancher is an open-source multi-cluster management platform.". If i have 3 nodes(hosts) all i want is just HA between them in single cluster. I think don't need rancher, right?

If you are using 3 nodes in a Harvester cluster, then you'll have HA out-of-the-box. > I think don't need rancher, right? To run Harvester, you don't need Rancher.