~josvaz/ubuntu/+source/rax-openstack-guest-agents/+git/rax-openstack-guest-agents:fix-resetnetwork-waiting

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Propose for merging

Merged into ~cloudware/ubuntu/+source/rax-openstack-guest-agents/+git/rax-openstack-guest-agents:reviewed at revision 4928886175046f022ccaa3b4a70a4b60bbcbad52

Philip Roche: Approve on 2017-02-23

Scott Moser (community): Approve on 2017-02-21

Diff: 16 lines (+2/-3)

1 file modified

debian/rax-openstack-guest-agents.nova-resetnetwork.service (+2/-3)

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4928886... by Jose L. VG on 2017-02-21

Fix resetnetwork waiting

Do "xenstore-read name" only once per script, and outside the waiting loop.

1daef4e... by Jose L. VG on 2017-02-21

(1.39.1-0ubuntu1.6) zesty; Fix for LP #1657223

SSH host keys were not being generated by cloud-init after it
changed to run earlier in systemd boot and that generated dependency
loops with nova-agent and xe-daemon services.

Also nova-agent being a daemon, and running a network configuration
task at the same time, meant it was impossible to make systemd boot
dependencies deterministically, ensuring nova-agent had completed
network configuration BEFORE network-pre target or cloud-init were
started.

As a result systemd was breaking such dependencies by killing random
services, cloud-init most often.

To avoid that we needed to make nova-agent notify when it was done
with network configuration and setup systemd dependencies to avoid loops.

In order to achieve this, the changes in this release are:

- Disable cloud-init network configuration, as nova-agent will do it.

- Make resetnetwork touch
  /var/lib/nova-agent/{instance uuid}-networkreset.done
  when completed succesfully. Also cleanup foreign marker files, left by
  other instances.

- Make nova-agent config re-issue resetnetwork command when the above
  marker file is missing, to avoid lock ups when the Xen host doesn't
  issue it.

- Remove systemd's rax-cloud.service dummy waiter service.

- Add systemd's nova-resetnetwork.service that waits on the marker
  file to appear. That way we cam make cloud-init & network-pre.target
  wait on nova-agent to complete network configuration.

- Make nova-agent.service avoid default dependencies creating
  systemd's dependency loops with cloud-init. Also remove sleep and
  dependency on removed rax-cloud.service in favor of network-pre.target

- Override xe-daemon.service unit so that it also avoids default
  dependencies creating systemd's dependency loops with cloud-init.

9905783... by Robert C Jennings on 2016-10-17

Imported Debian patch 1.39.1-0ubuntu1.5

e504ca5... by Ben Howard on 2016-02-25

Imported Debian patch 1.39.1-0ubuntu1.4

e53a05e... by Ben Howard on 2015-08-12

Imported Debian patch 1.39.1-0ubuntu1.3

7c7e31e... by Jose L. VG on 2017-02-17

Imported Upstream version 1.39.1