proxmox: what is the proper syntax for the "disk" parameter for a LXC container

[johanneskastl]

Summary

Creating an LXC container on a proxmox host only works if I omit the disk parameter. I have not found any syntax that is being accepted by my proxmox host.

The Proxmox documentation on LXC containers mentions that the rootfs argument should be something like this:

thin1:base-100-disk-1,size=8G

So it is name of the local storage, then a colon, then some name, then a comma, and then size=8GB. I also see a similar output in my existing lxc contains in the proxmox GUI.

However, no matter what I specify in the disk option I get not a valid disk size: 2GB\\n\\n.

Issue Type

Bug Report

Component Name

proxmox.py

Ansible Version

$ ansible --version
ansible [core 2.14.2]

Community.general Version

$ ansible-galaxy collection list community.general
# /usr/lib/python3.10/site-packages/ansible_collections
Collection        Version
----------------- -------
community.general 6.3.0 

Configuration

No response

OS / Environment

openSUSE Tumbleweed, python3.10

Steps to Reproduce

I tried multiple things for the disk parameter (my storage seems to be called local-lvm):

• local-lvm:some-disk-name,size=2G
• local-lvm:some-disk-name,size=local-lvm:2G (the docs say something about a <STORAGE>:<SIZE> syntax)
• local-lvm:some-disk-name,size=local-lvm:2 (the docs say something about a <STORAGE>:<SIZE> syntax)
• size=local-lvm:2 (the docs say something about a <STORAGE>:<SIZE> syntax)

- name: Create new container with minimal options
  community.general.proxmox:
    vmid: 100
    node: ...
   [...]
    hostname: example.org
    ostemplate: 'local:vztmpl/ubuntu-14.04-x86_64.tar.gz'
    disk: '???'

Expected Results

I would like to be able to set the size of the disk that is being allocated.

Actual Results

[...]
fatal: [localhost]: FAILED! => {"changed": false, "msg": "Creation of lxc VM 108 failed with exception: 400 Bad Request: Parameter verification failed. - {'rootfs': 'invalid format - format error\\nrootfs.size: invalid format - value does not look like a valid disk size: 2GB\\n\\n'}"}

Code of Conduct

• [X] I agree to follow the Ansible Code of Conduct

[ansibullbot]

Files identified in the description:

• plugins/modules/proxmox.py

If these files are incorrect, please update the component name section of the description or use the !component bot command.

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[ansibullbot]

cc @Ajpantuso @Thulium-Drake @UnderGreen @joshainglis @karmab @tleguern click here for bot help

[raiyni]

It's like

disk: 'local-zfs:3'

with local-zfs being the storage name in proxmox that can store containers and then the size in gb

[lildadou]

You can select a pre-allocated volume via

disk: 'storage-provider:volume-name'

but you MUST do NOT define the parameter storage

[johanneskastl]

Thanks @raiyni @lildadou, that answers my questions. I have tested @raiyni 's way and it works.

If I find time, I'll try to adapt the documentation.

[felixfontein]

PRs for improving the docs are always welcome! :)

[felixfontein]

7685 is a PR that improves this by adding a new example. I would be glad if some others who are familiar with the disk option can take a look at it! Thanks :)

[ansibullbot]

cc @krauthosting click here for bot help