Rethinking our filesystem access

Registered by Abhishek Kekane on 2019-02-27

In Rocky multiple backend support is added as experimental feature. In order to take advantage of this feature it is decided to deprecate work_dir and node_staging_uri configuration options and reserve two filesystem stores 'os_glance_tasks_store' and 'os_glance_staging_store', which can be used to get rid of initializing store via internal functions.

These stores will be ``hard-coded`` in glance for the time being and injected to enabled_backends config option to load when
glance_store will be initialized at the time of glance-api service starts. Operator needs to insure that these stores will not be
included in enabled_backends config option in glance-api.conf.

Blueprint information

Status:
Not started
Approver:
Erno Kuvaja
Priority:
Undefined
Drafter:
Abhishek Kekane
Direction:
Needs approval
Assignee:
Abhishek Kekane
Definition:
New
Series goal:
None
Implementation:
Unknown
Milestone target:
None

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