cloud February 2021

cloud@lists.fedoraproject.org

2 participants
4 discussions

systemd update breaks DNS resolution on Fedora 33 cloud instances
by Tadej Janež 19 Apr '21

19 Apr '21

Hi all! I was recently hit by this and it took me some time to figure out what was going on. I provisioned a fresh Fedora 33 cloud instance on DigitalOcean. After completing the initial upgrade via 'dnf update' and rebooting the system, DNS resolution stopped working. I did a little debugging and saw that no DNS servers were configured: $ resolvectl dns Global: Link 2 (eth0): Link 3 (eth1): $ resolvectl status Global Protocols: LLMNR=resolve -mDNS -DNSOverTLS DNSSEC=no/unsupported resolv.conf mode: stub Link 2 (eth0) Current Scopes: LLMNR/IPv4 LLMNR/IPv6 Protocols: -DefaultRoute +LLMNR -mDNS -DNSOverTLS DNSSEC=no/unsupported Link 3 (eth1) I was confused how could that happen since running 'dnf update' on the first boot clearly required DNS resolution to work. It turns out a recent systemd update, namely systemd-246.7-2.fc33 (https://bodhi.fedoraproject.org/updates/FEDORA-2020-3616681a70), includes this commit: https://src.fedoraproject.org/rpms/systemd/c/ed795fb1fc9a2c20ebcac34bdf7e7c… which removes the fallback DNS server list (i.e. Cloudflare's and/or Google's DNS servers) due to concerns over DNS requests being personally identifying information (PII) in the sense of GDPR? In combination with NetworkManager's DNS server handling being disabled via cloud-init: $ cat /etc/NetworkManager/conf.d/99-cloud-init.conf # Created by cloud-init on instance boot automatically, do not edit. # [main] dns = none this results in no DNS servers being configured on the system. The consequence is that Fedora 33 cloud instances are broken after updating the systemd package to version 246.7-2.fc33. (I haven't checked but if Fedora 34 cloud images include this version of systemd, then DNS resolution won't work even on first boot.) Please advise on the best steps to fix this issue. Regards, Tadej

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[Fedocal] Reminder meeting : Fedora Cloud Workgroup
by dusty＠dustymabe.com 28 Feb '21

28 Feb '21

Dear all, You are kindly invited to the meeting: Fedora Cloud Workgroup on 2021-03-02 from 16:00:00 to 17:00:00 UTC At fedora-meeting-1(a)irc.freenode.net The meeting will be about: Standing meeting for the Fedora Cloud Workgroup Source: https://apps.fedoraproject.org/calendar/meeting/1999/

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Fedora Cloud 33 CHECKSUM file is not signed
by Paul Bolle 17 Feb '21

17 Feb '21

Hi, The CHECKSUM file for the Fedora Cloud 33 images is not signed. This is in contrast to, for instance, the CHECKSUM files for the Cloud 32 images and the Server 33 images. What's the reason the current CHECKSUM file for Cloud images is not signed? Thanks, Paul Bolle

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[Fedocal] Reminder meeting : Fedora Cloud Workgroup
by dusty＠dustymabe.com 14 Feb '21

14 Feb '21

Dear all, You are kindly invited to the meeting: Fedora Cloud Workgroup on 2021-02-16 from 16:00:00 to 17:00:00 UTC At fedora-meeting-1(a)irc.freenode.net The meeting will be about: Standing meeting for the Fedora Cloud Workgroup Source: https://apps.fedoraproject.org/calendar/meeting/1999/

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cloud February 2021