enable port_forwarding service plugin and l3 agent extension as of Rocky

[Dmitrii Shcherbakov]

Enabling port forwarding feature would allow for more flexibility in environments where floating IP quotas are low per project.

https://docs.openstack.org/neutron/stein/admin/config-fip-port-forwardings.html
https://blueprints.launchpad.net/neutron/+spec/port-forwarding

neutron-api:

/etc/neutron/neutron.conf

service_plugins = <...> port_forwarding

neutron-gateway & neutron-openvswitch:

/etc/neutron/l3_agent.ini

extensions = <...> port_forwarding

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/679689

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/679694

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/679693
Committed: https://git.openstack.org/cgit/openstack/charm-neutron-gateway/commit/?id=899b75b971aaab92a7772a17bd212c23f6ac91ec
Submitter: Zuul
Branch: master

commit 899b75b971aaab92a7772a17bd212c23f6ac91ec
Author: Dmitrii Shcherbakov <email address hidden>
Date: Mon Sep 2 21:47:56 2019 -0400

    Sync context.py from charm-helpers

    See https://github.com/juju/charm-helpers/pull/370

    Change-Id: I8bc18c12e64dc43823f0d83d4705f5d0f2bb5edc
    Partial-Bug: #1842353

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/686947

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/679689
Committed: https://git.openstack.org/cgit/openstack/charm-neutron-api/commit/?id=104f8d411e20cf627df3886c3758913fd4edd668
Submitter: Zuul
Branch: master

commit 104f8d411e20cf627df3886c3758913fd4edd668
Author: Dmitrii Shcherbakov <email address hidden>
Date: Mon Sep 2 20:21:39 2019 -0400

    Add an option to enable port forwarding feature

    * Adds an option to enable port forwarding service plugin;
    * Exposes whether port forwarding is enabled or not to neutron-gateway
      and neutron-openvswitch charms via the respective relation.

    See LP: #1842353

    Change-Id: Ic3a8e302942ed331bc3d80223e123c13d61db3b2
    Closes-Bug: #1842353

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/679694
Committed: https://git.openstack.org/cgit/openstack/charm-neutron-gateway/commit/?id=5ec43f6dbeadc43ef11e81d3068bd6a7bbebf978
Submitter: Zuul
Branch: master

commit 5ec43f6dbeadc43ef11e81d3068bd6a7bbebf978
Author: Dmitrii Shcherbakov <email address hidden>
Date: Mon Sep 2 21:44:32 2019 -0400

    Adds l3_extension_plugins to L3AgentContext ctx

    * get a list of l3 plugins to enable based on relation data coming from
      neutron-api;
    * refactor adding fwaasv2 service plugins to the l3 agent to accommodate
      the l3_extension_plugins change.

    See https://github.com/juju/charm-helpers/pull/370
    See LP: #1842353

    Change-Id: Ic3a8e302942ed331bc3d80223e123c13d61db3b2
    Closes-Bug: #1842353

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/686947
Committed: https://git.openstack.org/cgit/openstack/charm-neutron-openvswitch/commit/?id=51c264c43f026b7a1f43770e4efe6caa0a735a25
Submitter: Zuul
Branch: master

commit 51c264c43f026b7a1f43770e4efe6caa0a735a25
Author: Dmitrii Shcherbakov <email address hidden>
Date: Sun Oct 6 20:24:52 2019 +0300

    Adds l3_extension_plugins to L3AgentContext ctx

    * get a list of l3 plugins to enable based on relation data coming from
      neutron-api;
    * refactor adding fwaasv2 service plugins to the l3 agent to accommodate
      the l3_extension_plugins change.

    See https://github.com/juju/charm-helpers/pull/370
    See LP: #1842353

    Change-Id: Ic3a8e302942ed331bc3d80223e123c13d61db3b2
    Closes-Bug: #1842353