Properly scope config option registrations
Many config options within Nova are declared either globally - i.e. in nova.config.
Often, config options can be declared and used within the one module. This is ideal because it is clear the option is only intended for use by that module and its declaration is easily found.
Even where multiple modules use a given option, one of those modules is often a natural place to declare it and the other modules can use CONF.import_opt() to explicitly declare their dependency on the option.
Scoping options in this way will also help us figure out groups to put options which will, in turn, help users make sense of the config file.
Blueprint information
- Status:
- Complete
- Approver:
- Russell Bryant
- Priority:
- Medium
- Drafter:
- Mark McLoughlin
- Direction:
- Approved
- Assignee:
- Mark McLoughlin
- Definition:
- Approved
- Series goal:
- Accepted for grizzly
- Implementation:
-
Implemented
- Milestone target:
-
2013.1
- Started by
- Russell Bryant
- Completed by
- Russell Bryant
Related branches
Related bugs
Sprints
Whiteboard
It's going to be pretty unclear when this blueprint is completed - it could be a never-ending cleanup job. But, one way of judging completeness is if nova.config only has a small number of options declared there.
For reference, there was originally 84 options declared in nova.config.
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Move compute opts from nova.config
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Re-organize compute opts a bit
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Move compute_driver into nova.virt.driver
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Move imagecache code from nova.virt.
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Move ec2 config opts to nova.api.ec2.cloud
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Remove default_image config option
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Clean up setting of control_exchange default
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Move api_paste_config option into nova.wsgi
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Move api_rate_limit and auth_strategy to nova.api
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Move cache_images to nova.virt.
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Move some options into nova.image.glance
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Move zombie_
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Move monkey patch config opts into nova.utils
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Properly scope isolated hosts config opts
For reference, there are 54 options declared in nova.config now.
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Properly scope password options
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Move some opts into nova.utils
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Move link_prefix options into api.openstack.
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Move osapi_max_limit into api.openstack.
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Move API extension opts to api.openstack.
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Move metadata_
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Move DNS manager options into network.manager
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Move network_driver into new nova.network.driver
For reference, there are 39 options declared in nova.config now.
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Move fake_network opt to nova.network.
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Remove unused aws access key opts
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Move global glance opts into nova.image.glance
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Move global s3 opts into nova.image.s3
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Move cert_topic into nova.cert.rpcapi
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Move network_topic into nova.network.rpcapi
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Move console_topic into nova.console.rpcapi
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Move scheduler_topic into nova.scheduler.
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Move compute_topic into nova.compute.rpcapi
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Move manager options into nova.service
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Move api_class options to where they are used
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Move osapi_compute_
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Move default_
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Move common virt driver options to virt.driver
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Move enabled_apis option into nova.service
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Move vpn_image_id to pipelib
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Move vpn_key_suffix into pipelib
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Move 2 more service opts to nova.service
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Move memcached_servers opt into common.memorycache
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Move global service networking opts to new module
Ok, that's a wrap! No more global options in nova.config
