/etc/resolv.conf is empty on snappy

This is a bug in systemd-networkd-resolvconf-update.service, apparently /run/systemd/netif/state does not always get the received DNS servers. This does not affect yakkety any more as this hackish thing is gone entirely and replaced by resolved.

But it is still relevant for xenial which snappy is based on, so we need to SRU it there.

Quick fix for snappy image builds until this is SRUed:

   sed '/^ExecStart=/ s!netif/state!& /run/systemd/netif/leases/* | sort -u!' /lib/systemd/system/systemd-networkd-resolvconf-update.service

Hello Oliver, or anyone else affected,

Accepted systemd into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/systemd/229-4ubuntu8 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

works fine now

The verification of the Stable Release Update for systemd has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

This bug was fixed in the package systemd - 229-4ubuntu8

---------------
systemd (229-4ubuntu8) xenial-proposed; urgency=medium

  * Queue loading transient units after setting their properties. Fixes
    starting VMs with libvirt. (LP: #1529079)
  * Connect pid1's stdin/out/err fds to /dev/null also for containers. This
    fixes generators which expect a valid stdout/err fd in some container
    technologies. (LP: #1608953)
  * 73-usb-net-by-mac.rules: Do not run readlink for *every* uevent, and
    merely check if /etc/udev/rules.d/80-net-setup-link.rules exists.
    A common way to disable an udev rule is to just "touch" it in
    /etc/udev/rule.d/ (i. e. empty file), and if the rule is customized we
    cannot really predict anyway if the user wants MAC-based USB net names or
    not. (LP: #1615021)
  * systemd-networkd-resolvconf-update.service: Also pick up DNS servers from
    individual link leases, as they sometimes don't appear in the global
    ifstate. (LP: #1620559)

 -- Martin Pitt <email address hidden> Tue, 06 Sep 2016 14:16:29 +0200

gh