Cloning Proxmox, best practice

[luphi]

Hey all,

possibly I have to deploy a few new Proxmox clusters. Too many to install them all manually ;-)
There are many tools out there, doing their job very well: dd, clonezilla...

Just wondering, which parts I have to change on each clone afterwards to make them individual.

The following files I have in mind:

/etc/ssh/ssh_host_*
/etc/pve/nodes/<hostname>
/etc/hostname
/etc/hosts
/etc/issue
/etc/network/interfaces

This is so far all clear to me.

But I found some keys/file in /etc/pve/priv/, which I have no clue how to handle them.

/etc/pve/priv/authkey.key
/etc/pve/priv/pve-root-ca.key
/etc/pve/priv/pve-root-ca.srl

Is there a way to recreate them?

Is there anything else, I need to take care of?

Or is there even a better way to deploy multiple servers?

Cheers,
Martin

 

[Richard]

possibly I have to deploy a few new Proxmox clusters. Too many to install them all manually ;-)
There are many tools out there, doing their job very well: dd, clonezilla...

Just wondering, which parts I have to change on each clone afterwards to make them individual.

The following files I have in mind:

/etc/ssh/ssh_host_*
/etc/pve/nodes/<hostname>
/etc/hostname
/etc/hosts
/etc/issue
/etc/network/interfaces

This is so far all clear to me.

But I found some keys/file in /etc/pve/priv/, which I have no clue how to handle them.

/etc/pve/priv/authkey.key
/etc/pve/priv/pve-root-ca.key
/etc/pve/priv/pve-root-ca.srl

Is there a way to recreate them?

run

pvecm updatecerts -f

see also https://pve.proxmox.com/wiki/HTTPS_..._5.0_and_5.1)#Revert_to_default_configuration

Is there anything else, I need to take care of?

If you use iscsi change also /etc/iscsi/initiatorname

Or is there even a better way to deploy multiple servers?

The result is not perfect since uuids (disks, lvm) will be identical in all clones. Maybe there are some other unique IDs.

However, in most cases they will not matter.