Files
Callum Dickinson
965cc2fcbc
Add per-container storage policy to account listing
Add the storage_policy attribute to the metadata returned when listing containers using the GET account API function. The storage policy of a container is a very useful attribute for telemetry and billing purposes, as it determines the location and method/redundancy of on-disk storage for the objects in the container. Ceilometer currently cannot define the storage policy as a metadata attribute in Gnocchi as GET account, the most efficient way of discovering all containers in an account, does not return the storage policy for each container. Returning the storage policy for each container in GET account is the ideal way of resolving this issue, as it allows Ceilometer to find all containers' storage policies without performing additional costly API calls. Special care has been taken to ensure the change is backwards compatible when migrating from pre-storage policy versions of Swift, even though those versions are quite old now. This special handling can be removed if support for migrating from older versions is discontinued. Closes-bug: #2097074 Change-Id: I52b37cfa49cac8675f5087bcbcfe18db0b46d887