Dan Kenigsberg has submitted this change and it was merged.

Change subject: hooks: ovs: better rollback
......................................................................


hooks: ovs: better rollback

Until now, OVS hook was not able to rollback after failed
setup of non-OVS networks.

Now it uses after_network_setup and after_network_setup_fail
hook points to handle general rollback for all failures
(both OVS and non-OVS).

Before OVS setup we save initial OVS configuration to a temporary
file via pickle. If an exception occurs during setupNetworks,
API.py does the standard rollback. Then after_network_setup_fail
is executed and runs setupNetworks with a special option _inOVSRollback
which triggers OVS-only rollback. OVS-only rollback removes all
OVS networks and recreates them according to configuration saved in
the temprorary file. When everything is done, temporary file is
removed.

Change-Id: I8f6b63d03bb9579e260bfad1686047a431f69543
Signed-off-by: Petr Horáček <phora...@redhat.com>
Reviewed-on: https://gerrit.ovirt.org/46907
Continuous-Integration: Jenkins CI
Reviewed-by: Ido Barkan <ibar...@redhat.com>
Reviewed-by: Dan Kenigsberg <dan...@redhat.com>
---
M debian/vdsm-hook-ovs.install
M vdsm.spec.in
M vdsm_hooks/ovs/Makefile.am
M vdsm_hooks/ovs/README
A vdsm_hooks/ovs/ovs_after_network_setup.py
A vdsm_hooks/ovs/ovs_after_network_setup_fail.py
M vdsm_hooks/ovs/ovs_before_network_setup.py
M vdsm_hooks/ovs/ovs_utils.py
8 files changed, 240 insertions(+), 94 deletions(-)

Approvals:
  Ido Barkan: Looks good to me, but someone else must approve
  Jenkins CI: Passed CI tests
  Petr Horáček: Verified
  Dan Kenigsberg: Looks good to me, approved



-- 
To view, visit https://gerrit.ovirt.org/46907
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Gerrit-MessageType: merged
Gerrit-Change-Id: I8f6b63d03bb9579e260bfad1686047a431f69543
Gerrit-PatchSet: 18
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Petr Horáček <phora...@redhat.com>
Gerrit-Reviewer: Dan Kenigsberg <dan...@redhat.com>
Gerrit-Reviewer: Ido Barkan <ibar...@redhat.com>
Gerrit-Reviewer: Jenkins CI
Gerrit-Reviewer: Ondřej Svoboda <osvob...@redhat.com>
Gerrit-Reviewer: Petr Horáček <phora...@redhat.com>
Gerrit-Reviewer: gerrit-hooks <automat...@ovirt.org>
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