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Description of problem:
When running a tripleo deployment without neutron-openvswitch-agent enabled, if openvswitch is ever restarted, it triggers neutron-openvswitch-agent to start.

Version-Release number of selected component (if applicable):
Newton

How reproducible:
Everytime

Steps to Reproduce:
1. Disable neutron-openvswitch-agent from compute and control profiles in tripleO:
resource_registry:
  OS::TripleO::Services::NeutronOvsAgent: OS::Heat::None
  OS::TripleO::Services::ComputeNeutronOvsAgent: OS::Heat::None
2. Deploy.
3. Login to a compute node
4. systemctl restart openvswitch


Actual results:
 neutron-openvswitch-agent will also start

Expected results:
 neutron-openvswitch-agent should not start

Additional info:

This is a bug in systemd fixed in upstream. Switching component.

Note that this systemd issue has been affecting OpenStack since the OSP 5 release where we started using systemd on RHEL 7. This is not a regression in OSP 11.

(In reply to Jakub Libosvar from comment #3)
> This is a bug in systemd fixed in upstream.

Where?

(In reply to Jan Synacek from comment #6)
> (In reply to Jakub Libosvar from comment #3)
> > This is a bug in systemd fixed in upstream.
> 
> Where?

Forwarding needinfo to Michal as he's the one who found the patch.

https://github.com/systemd/systemd/commit/c6497ccb7153af9a1252c48918e380b5134314de

fix merged to upstream staging branch ->
https://github.com/lnykryn/systemd-rhel/commit/77f4e582d0f381391594e6f8a7b6767d572d96f7
https://github.com/lnykryn/systemd-rhel/commit/7f72b471bbfd449f4261d12cc7b062f6e7034283
-> post

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2017:2297