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--- open_nebula_kvm_with_drbd [2020/02/23 13:10] – herwarth
+++ open_nebula_kvm_with_drbd [2020/02/23 13:23] (current) – [Move front-end VM to new cluster] herwarth
@@ Line 316: / Line 316: @@
 onedatastore create images-ds.conf
 </code>
-===== Configure oneadmin user to SSH to all nodes =====
+===== Configure oneadmin SSH =====
+<code>
+su - oneadmin
+</code>
+<code>
+ssh-keygen
+cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
+chown oneadmin:oneadmin ~/.ssh/authorized_keys
+chmod 600 ~/.ssh/authorized_keys
+</code>
+<code>
+cat << EOT > ~/.ssh/config
+Host *
+StrictHostKeyChecking no
+ConnectTimeout 5
+UserKnownHostsFile /dev/null
+EOT
+chmod 600 ~/.ssh/config
+</code>
+Now we need to copy it to all nodes. Set a password on the oneadmin user on all nodes first. When done you can disable the password on the back-end nodes by using the following command on all back-end nodes: passwd -d oneadmin
+<code>
+scp -r /var/lib/one/.ssh/ oneadmin@YOURHOST:/var/lib/one/
+</code>
+Check if you can login to all nodes as the oneadmin user. And do a reboot on the front-end node to make sure.
+<code>
+shutdown -r now
+</code>
+===== Move front-end VM to new cluster =====
+I created the VM on a laptop and now I want to move it to a back-end node. In this case I move it to server1 and do not want to see it in Open Nebula.
+Shutdown the VM and copy the qcow2 file to /var/lib/libvirt/images on the back-end server.
+Create a VM with virt-manager using the import exsisting volume. Make sure you connect it to the mgmt bridge.
+Enable boot on startup and reboot your back-end server. The VM should start automatically. Check with virt-manager on that server.

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