Hi,
we are using cloud-init for several years now and it looks like, that
cloud-init needs a config for every boot, otherwise, it will use the default
network config, which is DHCP.
We come around this issue by adding this file:
cat /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg
network: {config: disabled}
by cloud-init itself on the first run.
With this, cloud-init creates only once the network config and never touches it
again.
I would not completely disable cloud-init, because this could also have some
drawbacks, like not being able to create a root/user password anymore, if on
worst case, ssh is not working anymore...
What we also fix on the first boot is the datasource_list
-> datasource_list: ["NoCloud", "ConfigDrive"]
Otherwise, we have an extremely long boot process (up to 5 minutes or so),
because cloud-init tries to reach several cloud-config URLs.
BR Florian
----- Ursprüngliche Mail -----
Von: "Jp" <[email protected]>
An: "users" <[email protected]>
Gesendet: Donnerstag, 11. Juni 2020 16:54:31
Betreff: [ovirt-users] Re: cloud-init: reverts on reboot
I re-read the docs on creating VMs.
What is the difference between the Run Once w/ it's pop-up form vs the Initial
Run with it's embedded form?
If an (updated) doc were to have a sequential workflow for using cloud-init in
oVirt for a new VM's setup, would it look like this:
* assume cloud-init already installed, ex. Glance image; so SysPre/Cloud-Init
process already done*
Glance Image Method
1. Import Image + Create Template
2. Create VM (_don't_ use Run; and _don't_ populate Initial Run tab)
3. start VM with Run Once (_not_ Run)
4. fill out Run Once pop-up form
5. VM boots as usual
6. remote Console/shell into VM to verify setting
7. Reboot or Shutdown/Run
8. use cloud-init'd VM like any other non-cloud-init'd VM
That ^ look right?
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