Doing a POC and using this manual to install the community edition: KVM Node Installation |
I installed the frontend node using RHEL 10 minimal install. Then I have three servers that will be the KVM nodes which I also installed minimal RHEL 10 on. Installed the epel repo, did the opennebula-node-kvm install. On the frontend I follow step 4 “Configure passwordless SSH”. When trying the ssh-copy-id to the nodes, I get asked for the oneadmin password of the node. But I don’t know what that password is. Can’t remember setting that password. The user is present though on all the systems and has the exact same userid as well.
Do I just set a password for the oneadmin user per node?
(To continue instead of waiting for a response, I already did, just wondering if I’m breaking anything with this that will give me issue in the future)
The document you are referring to also mentions the following:
To enable passwordless connections you must distribute the public key of the oneadmin user from the Front-end to /var/lib/one/.ssh/authorized_keys on all hypervisor nodes. There are many methods to achieve the distribution of the SSH keys. Ultimately the administrator should choose a method; the recommendation is to use a configuration management system (e.g., Ansible or Puppet). In this guide, we are going to manually use SSH tools.
If you have done such step then make sure the file /var/lib/one/.ssh/authorized_keys on hypervisor nodes (HVs) has proper ownership and permissions.
You can increase ssh command output verbosity with -vvv flag to debug the issue with passwordless access: