Dear oVIrt,

Even though I would like to get some insight into what could be reason this is no working, I did find a workaround:

Instead of trying to get Ubuntu disk specified with ovirt_disk size,

I used qemu-img resize to increase the disk size before importing it to oVIrt.

This works, but it still going to present the problem if User eventually wants to increase for example disk from 40GBto 80GB.

Kindly awaiting your reply.

— — —
Met vriendelijke groet / Kind regards,

Marko Vrgotic

Sr.  System Engineer @ System Administration
m.vrgotic@activevideo.com

From: "Vrgotic, Marko" <M.Vrgotic@activevideo.com>
Date: Wednesday, 10 July 2019 at 16:19
To: "users@ovirt.org" <users@ovirt.org>
Subject: ovirt_disk and ubuntu issues

Dear oVirt,

I am downloading the ubuntu cloud image 16.04 and or 18.04:

   - name: "Download base cloud image from server"

     get_url:

       url: "{{ image_url }}"

       checksum: "sha256:{{ image_checksum }}"

       validate_certs: yes

       dest: "/tmp/{{ inventory_hostname_short }}.qcow2"

     delegate_to: localhost

creating a 40GB HDD and attaching image to it:

    - name: "Create oVirt disk with base image (with 40Gb allocated)"

      ovirt_disk:

        name: "{{ inventory_hostname_short }}"

        interface: virtio

        size: 40GiB

        format: cow

        upload_image_path: "/tmp/{{ inventory_hostname_short }}.qcow2"

        storage_domain: ovirt_production

        wait: true

      delegate_to: localhost

creating VM afterwards:

    - name: "Create new Ubuntu VMs from cloud image"

      delegate_to: localhost

      ovirt_vm:

        auth: "{{ ovirt_auth }}"

        name: "{{ inventory_hostname_short }}"

        disks:

        - name: "{{ inventory_hostname_short }}"

        graphical_console:

            protocol: vnc

        serial_console: true

        usb_support: true

        soundcard_enabled: false

        operating_system: "{{ operating_system_type }}"

        type: server

        nics:

        - name: nic1

          profile_name: tenant1

          interface: virtio

          nic_on_boot: true

        cloud_init:

          host_name: "{{ inventory_hostname }}"

          user_name: ubuntu

          authorized_ssh_keys: "{{ ssh_agent_pubkeys.stdout }}"

        state: "running"

        cluster: "{{ ovirt_cluster }}"

      when: inventory_hostname in groups['ubuntu-baker']

When VM gets created, I can see in oVIrt VM details disk created is 40GB.

Executing df -h, gives me following:

  root@av3-ubuntu-18-base:/home/ubuntu# df -h

Filesystem      Size  Used Avail Use% Mounted on

udev            447M     0  447M   0% /dev

tmpfs            92M  696K   92M   1% /run

/dev/vda1       2.0G  1.3G  706M  65% /

tmpfs           460M     0  460M   0% /dev/shm

tmpfs           5.0M     0  5.0M   0% /run/lock

tmpfs           460M     0  460M   0% /sys/fs/cgroup

/dev/vda15      105M  3.6M  101M   4% /boot/efi

tmpfs            92M     0   92M   0% /run/user/1000

Initially I thought growpart or resize2fs is not triggered, but then running dmesg or fdisk /dev/vda, told me that physical disk size is still only size of the downloaded ubuntu cloud image.

Disk /dev/vda: 2.2 GiB, 2361393152 bytes, 4612096 sectors

Units: sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Is this related to ovirt_disk module, or ubuntu and ovirt_disk, since I do not have this behavior with CentOS 7 images?

Can you advise how to proceed, in case I am missing some configuration parameter or command to be run?

The following Ubuntu images are used:

ubuntu-16: image_url=https://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-disk1.img image_checksum=fda868058586b129c7fdb6472fe575e911f7c67551a6dc75966f2ec02201bdae

ubuntu-18: image_url=https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img image_checksum=7d2b90022a169119d7726c0fefa1713acbead7cc36d282c879896fd89c5a6663

Kindly awaiting your reply.

— — —
Met vriendelijke groet / Kind regards,

Marko Vrgotic

Sr.  System Engineer @ System Administration
m.vrgotic@activevideo.com
tel. +31 (0)35 677 4131