Create loop device

[gael-api]

Hi,
With docker, loopback pseudo devices /dev/loop* are not created automatically.
This cause errors during iso mount and squashfs mount.

This MR will populate many loopback files if the playbook is run inside a docker container.

[fdcastel]

Thanks @gael-api. This fixed the problem for me.

@sever-sever Please merge this one.

Related: #37

UPDATE: Do not merge. It doesn't work.

[fdcastel]

For reference. The error I was getting was this:

fatal: [localhost]: FAILED! => {"changed": false, "msg": "Device /dev/loop8\n/dev/loop9\n/dev/loop10p2 not found."}

[sever-sever]

With those changes.
After the first build, I get:

TASK [setup-root-partition : Create a fileystem on EFI partition] ****************************************************************************************************************************************************
fatal: [localhost]: FAILED! => {"changed": false, "msg": "Device p2 not found."}

second

TASK [setup-root-partition : Create a fileystem on EFI partition] ****************************************************************************************************************************************************
fatal: [localhost]: FAILED! => {"changed": false, "msg": "Device p2 not found."}

Strangely, after several times it starts work without any change.

Without changes:

PLAY RECAP ***********************************************************************************************************************************************************************************************************
localhost                  : ok=79   changed=60   unreachable=0    failed=0    skipped=20   rescued=0    ignored=0   

root@74f71d32a7a2:/vm-build/vyos-vm-images# ls /tmp
mc-root  vyos-1.4.0-cloud-init-2G-qemu.qcow2

[fdcastel]

Strangely, after several times it starts work without any change.

Yes. Sorry @sever-sever. Only today I found this actually don't fix the problem.

I'm without the ability to build a new image for now. Trying to understand what causes the error.

Commit 93879fe changed this. Before it had a | head -n1 to filter the first result. Unfortunately, adding this filter still doesn't fix the problem.

[fdcastel]

@zdc If you could, kindly bring some light to this problem.

[fdcastel]

Strangely, after several times it starts work without any change.

I ran it 20 times now 😄. It didn't work.

Every TWO runs the error message grows with a new /dev/loopX item:

I stopped at:

TASK [setup-root-partition : Create a fileystem on EFI partition] ***********************************************************************************************************************************************
fatal: [localhost]: FAILED! => {"changed": false, "msg": "Device /dev/loop17\n/dev/loop8\n/dev/loop15\n/dev/loop13\n/dev/loop11\n/dev/loop18\n/dev/loop9\n/dev/loop16\n/dev/loop14\n/dev/loop12\n/dev/loop10p2 not found."}`

[sever-sever]

It does not fix the issue
Close it.