I am really new to OpenNebula. I have followed the instructions in the official documentation to use minione on a single host without any major inconveniences. My problem arose when I tried to move to a multi-node environment using Virtualbox and 3 nodes: frontend, host0 and host1.
I would appreciate any help!
I could add a VM to host0 using Alpine Linux image. Although the VM is in RUNNING state and it has its own ip, I can’t reach it when I try to ping it from the host0 console… so, I can’t ssh to it. The VNC connection from Sunstone fails with a tunneling error. The VM logs doesn’t show any error.
Versions of related components and OS:
- OS: Ubuntu 22.04 (Desktop Edition)
- Network settings: netplan & networkd
- Nodes: Virtualbox VM with 2 cores, 4GB RAM, 100GB hard drive, 1 NIC (bridge mode), virtual engine enabled.
- OpenNebula 6.6.0 (b7b662b5)
- VM image on Sunstone: alpine linux 3.17
Steps to reproduce:
- Create 3 VMs on Virtualbox with the above configuration.
- Install a fresh Ubuntu 22.04 DE on the VMs.
- Set the network to static ip address in my local network (192.168.0.150), gateway and nameserver to reach the internet.
- Enable the resolved and networkd services and disable the NetworkManager service.
- Update and upgrade apt
- Add 3 IPs to /etc/hosts
On the frontend:
- download & run minione (with --frontend parameter)
- Install the NFS server package
- Export /var/lib/one/database
On the hosts:
- Create a virtual NIC device and a bridge to it, setting a private ip address (172.16.100.1).
- Install the opennebula-node and opennebula-node-kvm packages
- Set /etc/libvirt/libvirtd.conf to oneadmin sock group and 0777 permissions
- Set /etc/apparmor.d/abstractions/libvirt-qemu to allow /var/lib/one/datastores/** rwk,
- Restart libvirtd
- Set the nfs-client configuration to mount /var/lib/one/database directory from frontend
On frontend and nodes:
- Set SSH to passwordless
On the Sunstone interface:
- Add hosts host0 and host1 to the infrastructure, setting both as KVM nodes.
- Create a virtual network named “Private” in bridge mode using minionebr bridge, and ip range 172.16.100.x
- Add VM to host0 using the Alpine Linux image and set it to use the “Private” virtual network.
I have checked:
- ssh connections to oneadmin user from the frontend to both hosts, from both hosts to the frontend, and from each host to the other.
- Both hosts are in the ON state.
- The VM reaches the RUNNING state and has its own private ip (172.16.100.2).
- The VM does not log any errors.
I have tried:
- Switch from Virtualbox to VMware.
- Change Ubuntu version
- Add another NIC device to the Vbox VM.
- Set the Vnet range on the local network (192.168.0.x)
- Connect to the VM from virsh
I expect to be able to ssh to the VM from host0 and/or from the sunstone interface. Then, to be able to migrate the VM from host0 to host1.