IPv6 control plane support does not work with the fully routed topology (/128)

[Radosław Piliszek]

kolla_address filters out /128 addresses as these are the keepalived's default and there is no more reliable way to figure that from environment (no concept of secondaries). VIP address has to be filtered out as we use the first address (ansible delivers the last assigned as first).
This breaks when keepalived is changed to use a different prefix length but it is very unlikely anyone would do that in this case.
On the other hand, this also breaks deployments when the real address is /128. This may be the case with some (still rare in this use case) routed-only topologies (that omit L2 broadcast domains).

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/729338

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/729338
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=0674236eedd76ae06f168db0da2b249d3ba756b2
Submitter: Zuul
Branch: master

commit 0674236eedd76ae06f168db0da2b249d3ba756b2
Author: Radosław Piliszek <email address hidden>
Date: Tue May 19 19:49:14 2020 +0200

    Fix kolla_address in IPv6 fully-routed topo case

    This includes some lightweight refactoring to avoid code
    duplication.

    This patch is made to be backportable to Train.
    We now include Ansible in testing since Ussuri so the comments
    about the bool filter are wrong.

    Change-Id: Ia2e0f7f24988763bacfeafefb7977021f5949f4e
    Closes-bug: #1848941

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/ussuri
Review: https://review.opendev.org/744276

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/train
Review: https://review.opendev.org/744277

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/744277
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=cc28890904792525a722519e0240b5e0f8bd9256
Submitter: Zuul
Branch: stable/train

commit cc28890904792525a722519e0240b5e0f8bd9256
Author: Radosław Piliszek <email address hidden>
Date: Tue May 19 19:49:14 2020 +0200

    Fix kolla_address in IPv6 fully-routed topo case

    This includes some lightweight refactoring to avoid code
    duplication.

    This patch is made to be backportable to Train.
    We now include Ansible in testing since Ussuri so the comments
    about the bool filter are wrong.

    Change-Id: Ia2e0f7f24988763bacfeafefb7977021f5949f4e
    Closes-bug: #1848941
    (cherry picked from commit 0674236eedd76ae06f168db0da2b249d3ba756b2)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/744276
Committed: https://git.openstack.org/cgit/openstack/kolla-ansible/commit/?id=8a770bbdb4757082b81dd6beca618303b5b8a008
Submitter: Zuul
Branch: stable/ussuri

commit 8a770bbdb4757082b81dd6beca618303b5b8a008
Author: Radosław Piliszek <email address hidden>
Date: Tue May 19 19:49:14 2020 +0200

    Fix kolla_address in IPv6 fully-routed topo case

    This includes some lightweight refactoring to avoid code
    duplication.

    This patch is made to be backportable to Train.
    We now include Ansible in testing since Ussuri so the comments
    about the bool filter are wrong.

    Change-Id: Ia2e0f7f24988763bacfeafefb7977021f5949f4e
    Closes-bug: #1848941
    (cherry picked from commit 0674236eedd76ae06f168db0da2b249d3ba756b2)

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 10.2.0 release.

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/kolla-ansible 9.3.0 release.