RabbitMQ should not install when not needed

[Tom Cameron]

When deploying with OSA, RabbitMQ should only install if it is depended on by another play. An example would be a SWIFT-only deployment.

Currently, this is causing an issue with the rpc-openstack monitoring components because Rabbit's server process is running there are no channels configured.

[Kevin Carter (kevin-carter)]

After a brief conversation in the channel it was determined that we can do most of this with affinity settings. We've decided that the best fix at this time would be to add additional documentation on how the affinity groups work and can be customized.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/258116

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/258116
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible/commit/?id=a09fc0edeea0e6500c3f842bd3664c228e8fa2fc
Submitter: Jenkins
Branch: master

commit a09fc0edeea0e6500c3f842bd3664c228e8fa2fc
Author: Major Hayden <email address hidden>
Date: Tue Dec 15 13:09:33 2015 -0600

    Adding docs for affinity

    This documentation explains affinity and also tells users how to avoid
    deploying RabbitMQ containers for standalone swift deployments.

    Closes-Bug: 1513132

    Change-Id: Id94a14ebb9d97f0714ed63131e60fa6c13094719

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: liberty
Review: https://review.openstack.org/258500

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: kilo
Review: https://review.openstack.org/258501

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/258501
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible/commit/?id=a9fc5f589fa98c938239709dc76dcbe17126bab0
Submitter: Jenkins
Branch: kilo

commit a9fc5f589fa98c938239709dc76dcbe17126bab0
Author: Major Hayden <email address hidden>
Date: Tue Dec 15 13:09:33 2015 -0600

    Adding docs for affinity

    This documentation explains affinity and also tells users how to avoid
    deploying RabbitMQ containers for standalone swift deployments.

    Closes-Bug: 1513132

    Change-Id: Id94a14ebb9d97f0714ed63131e60fa6c13094719
    (cherry picked from commit a09fc0edeea0e6500c3f842bd3664c228e8fa2fc)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/258500
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible/commit/?id=37a7c95f51f81bbac2597a7295a20e1cd52b13d5
Submitter: Jenkins
Branch: liberty

commit 37a7c95f51f81bbac2597a7295a20e1cd52b13d5
Author: Major Hayden <email address hidden>
Date: Tue Dec 15 13:09:33 2015 -0600

    Adding docs for affinity

    This documentation explains affinity and also tells users how to avoid
    deploying RabbitMQ containers for standalone swift deployments.

    Closes-Bug: 1513132

    Change-Id: Id94a14ebb9d97f0714ed63131e60fa6c13094719
    (cherry picked from commit a09fc0edeea0e6500c3f842bd3664c228e8fa2fc)

[Davanum Srinivas (DIMS) (dims-v)]

This issue was fixed in the openstack/openstack-ansible 11.2.11 release.

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/openstack-ansible 12.0.8 release.

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/openstack-ansible 11.2.12 release.

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/openstack-ansible 12.0.9 release.

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/openstack-ansible 13.0.0 release.

[Davanum Srinivas (DIMS) (dims-v)]

This issue was fixed in the openstack/openstack-ansible 13.0.0 release.

[Davanum Srinivas (DIMS) (dims-v)]

This issue was fixed in the openstack/openstack-ansible 12.0.11 release.

[Davanum Srinivas (DIMS) (dims-v)]

This issue was fixed in the openstack/openstack-ansible 11.2.14 release.

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/openstack-ansible 11.2.15 release.