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+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+
+Configuration of Multisite.Kingbird
+===================================
+
+A brief introduction to configure Multisite Kingbird service. Only the
+configuration items for Kingbird will be described here. Logging,
+messaging, database, keystonemiddleware etc configuration which are
+generated from OpenStack OSLO libary, will not be described here, for
+these configuration items are common to Nova, Cinder, Neutron. So please
+refer to corresponding description from Nova or Cinder or Neutron.
+
+
+Configuration in [DEFAULT]
+--------------------------
+
+configuration items for kingbird-api
+""""""""""""""""""""""""""""""""""""
+
+bind_host
+*********
+- default value: *bind_host = 0.0.0.0*
+- description: The host IP to bind for kingbird-api service
+
+bind_port
+*********
+- default value: *bind_port = 8118*
+- description: The port to bind for kingbird-api service
+
+api_workers
+***********
+- default value: *api_workers = 2*
+- description: Number of kingbird-api workers
+
+configuration items for kingbird-engine
+"""""""""""""""""""""""""""""""""""""""
+
+host
+****
+- default value: *host = localhost*
+- description: The host name kingbird-engine service is running on
+
+workers
+*******
+- default value: *workers = 1*
+- description: Number of kingbird-engine workers
+
+report_interval
+***************
+- default value: *report_interval = 60*
+- description: Seconds between running periodic reporting tasks to
+  keep the engine alive in the DB. If the engine doesn't report its
+  aliveness to the DB more than two intervals, then the lock accquired
+  by the engine will be removed by other engines.
+
+common configuration items for kingbird-api and kingbird-engine
+"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+use_default_quota_class
+***********************
+- default value: *use_default_quota_class = true*
+- description: Enables or disables use of default quota class with default
+  quota, boolean value
+
+Configuration in [kingbird_global_limit]
+----------------------------------------
+
+For quota limit, a negative value means unlimited.
+
+configuration items for kingbird-api and kingbird-engine
+""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+quota_instances
+***************
+- default value: *quota_instances = 10*
+- description: Number of instances allowed per project, integer value.
+
+quota_cores
+***********
+- default value: *quota_cores = 20*
+- description: Number of instance cores allowed per project, integer value.
+
+quota_ram
+*********
+- default value: *quota_ram = 512*
+- description: Megabytes of instance RAM allowed per project, integer value.
+
+quota_metadata_items
+********************
+- default value: *quota_metadata_items = 128*
+- description: Number of metadata items allowed per instance, integer value.
+
+quota_key_pairs
+***************
+- default value: *quota_key_pairs = 10*
+- description: Number of key pairs per user, integer value.
+
+quota_fixed_ips
+***************
+- default value: *quota_fixed_ips = -1*
+- description: Number of fixed IPs allowed per project, this should be at
+  least the number of instances allowed, integer value.
+
+quota_security_groups
+*********************
+- default value: *quota_security_groups = 10*
+- description: Number of security groups per project, integer value.
+
+quota_floating_ips
+******************
+- default value: *quota_floating_ips = 10*
+- description: Number of floating IPs allowed per project, integer value.
+
+quota_network
+***************
+- default value: *quota_network = 10*
+- description: Number of networks allowed per project, integer value.
+
+quota_subnet
+***************
+- default value: *quota_subnet = 10*
+- description: Number of subnets allowed per project, integer value.
+
+quota_port
+***************
+- default value: *quota_port = 50*
+- description: Number of ports allowed per project, integer value.
+
+quota_security_group
+********************
+- default value: *quota_security_group = 10*
+- description: Number of security groups allowed per project, integer value.
+
+quota_security_group_rule
+*************************
+- default value: *quota_security_group_rule = 100*
+- description: Number of security group rules allowed per project, integer
+  value.
+
+quota_router
+************
+- default value: *quota_router = 10*
+- description: Number of routers allowed per project, integer value.
+
+quota_floatingip
+****************
+- default value: *quota_floatingip = 50*
+- description: Number of floating IPs allowed per project, integer value.
+
+quota_volumes
+***************
+- default value: *quota_volumes = 10*
+- description: Number of volumes allowed per project, integer value.
+
+quota_snapshots
+***************
+- default value: *quota_snapshots = 10*
+- description: Number of snapshots allowed per project, integer value.
+
+quota_gigabytes
+***************
+- default value: *quota_gigabytes = 1000*
+- description: Total amount of storage, in gigabytes, allowed for volumes
+  and snapshots per project, integer value.
+
+quota_backups
+*************
+- default value: *quota_backups = 10*
+- description: Number of volume backups allowed per project, integer value.
+
+quota_backup_gigabytes
+**********************
+- default value: *quota_backup_gigabytes = 1000*
+- description: Total amount of storage, in gigabytes, allowed for volume
+  backups per project, integer value.
+
+Configuration in [cache]
+----------------------------------------
+
+The [cache] section is used by kingbird engine to access the quota
+information for Nova, Cinder, Neutron in each region in order to reduce
+the KeyStone load while retrieving the endpoint information each time.
+
+configuration items for kingbird-engine
+"""""""""""""""""""""""""""""""""""""""
+
+auth_uri
+***************
+- default value:
+- description: Keystone authorization url, for example, http://127.0.0.1:5000/v3.
+
+admin_username
+**************
+- default value:
+- description: Username of admin account, for example, admin.
+
+admin_password
+**************
+- default value:
+- description: Password for admin account, for example, password.
+
+admin_tenant
+************
+- default value:
+- description: Tenant name of admin account, for example, admin.
+
+admin_user_domain_name
+**********************
+- default value: *admin_user_domain_name = Default*
+- description: User domain name of admin account.
+
+admin_project_domain_name
+*************************
+- default value: *admin_project_domain_name = Default*
+- description: Project domain name of admin account.
+
+Configuration in [scheduler]
+----------------------------------------
+
+The [scheduler] section is used by kingbird engine to periodically synchronize
+and rebalance the quota for each project.
+
+configuration items for kingbird-engine
+"""""""""""""""""""""""""""""""""""""""
+
+periodic_enable
+***************
+- default value: *periodic_enable = True*
+- description: Boolean value for enable/disable periodic tasks.
+
+periodic_interval
+*****************
+- default value: *periodic_interval = 900*
+- description: Periodic time interval for automatic quota sync job, unit is
+  seconds.
+
+Configuration in [batch]
+----------------------------------------
+
+The [batch] section is used by kingbird engine to periodicly synchronize
+and rebalance the quota for each project.
+
+batch_size
+***************
+- default value: *batch_size = 3*
+- description: Batch size number of projects will be synced at a time.
+
+Configuration in [locks]
+----------------------------------------
+
+The [locks] section is used by kingbird engine to periodically synchronize
+and rebalance the quota for each project.
+
+lock_retry_times
+****************
+- default value: *lock_retry_times = 3*
+- description: Number of times trying to grab a lock.
+
+lock_retry_interval
+*******************
+- default value: *lock_retry_interval =10*
+- description: Number of seconds between lock retries.