I would like to supply custom user data for Cloud-init using `--cicustom`. I would like to re-use a single snippet for all VMs. However, the default user data contains the `hostname` key. Is it possible for Proxmox to substitute it dynamically?
Hostname in Cloud-init user data
- Thread starter William Edwards
- Start date
No, its not possible today. You will need to wrap it around with something. What the wrapper is will depend on how you create your VMs.
You can also file an enhancement request as described here: https://forum.proxmox.com/threads/where-to-post-feature-requests.46317/
Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
You can also file an enhancement request as described here: https://forum.proxmox.com/threads/where-to-post-feature-requests.46317/
Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
So I'll have to create a user-data snippet per VM. Would be useful to do this with the PVE API, as others think too: https://forum.proxmox.com/threads/creating-snippets-using-pve-api.54081/
I agree, we have a template and create a snippet per vmid - not pretty but it works. Absent an openstack-like metadata server, your options today are limited.
Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
thats what we do - common NFS snippet storage.
Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
Proxmox default user config would look like this:
Hostname will be dynamic whenever new VM will be created with certain name specified:
So you can use cicustom with vendor custom file (instead of user custom file) and keep user custom file for Proxmox:
Although the new problem would with users directive in vendor file. Proxmox adds users directive when ciuser is either no set or set to anything other root. As per cloud-init docs, users and groups module frequency is once per instance so if vendor file has users directive too - vendor users directive won't be executed.
Code:
qm cloudinit dump 9000 user
#cloud-config
hostname: tmpl
manage_etc_hosts: true
fqdn: tmpl
chpasswd:
expire: False
users:
- default
package_upgrade: trueHostname will be dynamic whenever new VM will be created with certain name specified:
Code:
qm cloudinit dump 100 user
#cloud-config
hostname: foo
fqdn: fooSo you can use cicustom with vendor custom file (instead of user custom file) and keep user custom file for Proxmox:
Code:
# cat 9000.conf
cicustom: vendor=local:snippets/vendor.yaml,network=local:snippets/network.yamlAlthough the new problem would with users directive in vendor file. Proxmox adds users directive when ciuser is either no set or set to anything other root. As per cloud-init docs, users and groups module frequency is once per instance so if vendor file has users directive too - vendor users directive won't be executed.