rbd: start using active-active
This patch drops the hacky workaround of using backend_host which
is not recommended by the Cinder team and instead uses active-active
RBD which has been implemented since Rocky.
Closes-Bug: #1837403
Change-Id: I0c8aed4d0608c1f117e1baa1f428875956159ffd
(cherry picked from commit c148d77e29
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@ -0,0 +1,12 @@
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---
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features:
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- Cinder is deployed with Active-Active enabled by default if you are using
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Ceph as a backend storage.
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issues:
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- The previous way of using a common backend_host across all deployments
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was not recommended by the Cinder team and it will cause duplicate
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messages that cause problems in the environment.
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upgrade:
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- It is possible that you may need to use the cinder-manage command to migrate
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volumes to a specific host. In addition, you will have to remove the old
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``rbd:volumes`` service which will be stale.
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@ -14,6 +14,10 @@ rootwrap_config = /etc/cinder/rootwrap.conf
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api_paste_config = /etc/cinder/api-paste.ini
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auth_strategy = {{ cinder_auth_strategy }}
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{% if cinder_backend_rbd_inuse | bool %}
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cluster = ceph
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{% endif %}
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## Cinder Scheduler
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{% if cinder_scheduler_default_filters is defined %}
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scheduler_default_filters={{ cinder_scheduler_default_filters | join(',') }}
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@ -101,9 +105,6 @@ allowed_direct_url_schemes = cinder
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{% for backend_section in cinder_backends|dictsort %}
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[{{ backend_section.0 }}]
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{% for key, value in (backend_section.1 | dictsort) if key not in ['extra_volume_types', 'shares'] %}
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{% if key == "volume_driver" and value == "cinder.volume.drivers.rbd.RBDDriver" %}
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backend_host="rbd:volumes"
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{% endif %}
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{{ key }}={{ value }}
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{% endfor %}
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