VMs from Template (and Clones, too) want to keep IP address of original/template

[jorn]

What I'm trying to accomplish:
Have a template of an Ubuntu server set up that I can clone, mostly for the purposes of building nodes for a small K8S cluster.
I have Parallels Desktop for macOS Version 15.1.4 (47270)

What I did:
1. Built the template server, complete with patches, docker, etc. I named it Node01
2. Shut down Node01
3. Chose "Clone to template..."
4. From that template, chose "Deploy to virtual machine..."

What's wrong:
A. Any new VM, despite even having a different MAC address, comes up with the same IP address as Node01. Why?
B. I can force it to release [sudo dhclient -r enp0s5] and renew [sudo dhclient enp0s5] but when I reboot the VM, it's back to having the IP address of Node01. Why??

 

[DanS27]

Hi! I had the same issue, though I was working on Suse Enterprise Linux Server. The solution *seems* to work in line with other distributions of Linux:

prlctl clone <template_name> --name <new_vm_name>
prlctl set <new_vm_name> --device-set net0 --ipadd <ip_address_predecided_by_me> # sets up VM to point to new IP address
prlctl start <new_vm_name>
# wait for VM to boot up
prlctl exec <new_vm_name> rm /etc/udev/rules.d/70-persistent-net.rules # Resolves conflict between
prlctl stop <new_vm_name>
prlctl start <new_vm_name>

You can verify it worked by looking at

cat /etc/hosts

after the VM has booted up.

I pieced together this solution from here and here

Hope this helps!

 

[ixpict]

After some research, i found corner case. New netplan configuration don't use mac as dhcp identifier in Ubuntu great 18.xx. For fix this you need change default network configuration in template vm `/etc/netplan/00-installer-config.yaml`:

```
network:
ethernets:
<your device>:
dhcp4: true
dhcp6: false
dhcp-identifier: mac
version: 2
```

or replace hostname on start (before systemd-networkd started). And everything will be fine.

 

[ixpict]

Sure, its yaml:

network:
  ethernets:
    <interfaces>:
      dhcp4: true
      dhcp6: false
      dhcp-identifier: mac
  version: 2

You should replace <interfaces> on you primary interface name.