It doesn't seem to be caused by a race between networkd and
NetworkManager.
I reproduced the issue with qemu here and I see the name resolution
failure happening few seconds before NetworkManager started.
>From /var/log/cloud-init.log:
2023-03-09 19:17:58,443 - util.py[DEBUG]: Getting data from <class
'cloudinit.sources.DataSourceNoCloud.DataSourceNoCloudNet'> failed
Traceback (most recent call last):
...
cloudinit.url_helper.UrlError: HTTPConnectionPool(host='boot.linuxgroove.com',
port=80): Max retries exceeded with url: /ubuntu/23.04/meta-data (Caused by
NewConnectionError('<urllib3.connection.HTTPConnection object at
0x7f650b663610>:
Failed to establish a new connection: [Errno -3] Temporary failure in name
resolution'))
>From systemd's journal
Mar 09 19:18:01 ubuntu systemd[1]: Starting NetworkManager.service - Network
Manager...
(edit)
resolved wasn't running as well
2023-03-09T19:18:01.712656+00:00 ubuntu systemd[1]: Starting systemd-
resolved.service - Network Name Resolution...
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https://bugs.launchpad.net/bugs/2008952
Title:
DNS failure while trying to fetch user-data
Status in cloud-init:
Triaged
Status in netplan:
New
Status in subiquity:
New
Status in systemd package in Ubuntu:
New
Bug description:
In testing netboot + autoinstall of the new ubuntu desktop subiquity
based installer for 23.04 I found cloud-init is failing to retrieve
user-data because it can't resolved the hostname in the URL. This
same configuration does work for 22.04 based subiquity, so seems a
regression.
From the ipxe config:
imgargs vmlinuz initrd=initrd \
ip=dhcp \
iso-url=http://cdimage.ubuntu.com/daily-live/pending/lunar-desktop-amd64.iso
\
fsck.mode=skip \
layerfs-path=minimal.standard.live.squashfs \
autoinstall \
'ds=nocloud-net;s=http://boot.linuxgroove.com/ubuntu/23.04/' \
That fails, but if we replace boot.linuxgroove.com with the IP it
works.
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