30c83bf9c2
Change-Id: I5a9d6f529f45b0ff0965fc994ded7e379745034a Signed-off-by: Zhijiang Hu <hu.zhijiang@zte.com.cn>
62 lines
5.0 KiB
Plaintext
62 lines
5.0 KiB
Plaintext
This call graph shows an example about how the role-list information is provided literally through
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all daisy modules. role-list information is used everywhere such as finding out which backend we
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are using.
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daisyclient/daisyclient/v1/
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shell.py (a. k. a. /usr/bin/daisy)
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^
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+-----+
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+--|----------------+ horizon/openstack_dashboard/dashboards/enviroment/deploy/
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| CLI or WebUI-------------------------------> url.py maps dodeploy() to do_depoy()
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| +-------------+ | views.py impl. do_deploy() which call get_ha_role() in deploy_rule_lib.py
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| | daisyclient +-------------+ deploy_rule_lib.py impl. get_ha_role() which call api.daisy.role_list(request).
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| +------+------+ | |
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| | | | horizon/openstack_dashboard/api/
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+--------|----------+ | daisy.py impl. role_list() by calling daisyclient(request).roles.list()
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| | which is daisy_client.Client(version=1, endpoint=http://127.0.0.1:19292)
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| |
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| +------------------> daisyclient/daisyclient/
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| client.py impl. daisy_client
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| v1/client.py impl. daisy_client version=1 and self.roles = RoleManager(self.http_client)
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| v1/roles.py impl. RoleManager class and its list() method which
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| uses self.client.get(url="/v1/roles/detail") to get the response from daisy-api service.
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(WSGI Interface)
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+--------|----------+
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| daisy-api service | +-> daisy/daisy/api/v1/
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| +-----V------+ | | router.py maps url "/roles/detail" to detail() action of the controller "roles_resource".
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| | api +-------------------------------+ roles.py impl. "roles_resource" controller and its detail() method which calls
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| +------------+ | registry.get_roles_detail(req.context, **params) to get info from registry service.
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| | registry is imported form daisy.registry.client.v1.api.
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| +------------+ |
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| | daisy | | +-> daisy/daisy/registry/client/v1
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| | registry +------------------------------+
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| | client | | api.py impl. get_roles_detail() by call get_registry_client() to get a RegistryClient object
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| +-----+------+ | and call its get_roles_detailed() method.
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| | | RegistryClient is initialized by RegistryClient(host=... port=19191).
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+--------|----------+ client.py impl. RegistryClient class and its get_roles_detailed() method which uses
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| self.do_request("GET", "/roles/detail", params=params) to get the response
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| from daisy-registry service.
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(WSGI Interface)
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+--------|----------+ +----> daisy/daisy/registry/api/v1/
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| daisy-registry | | __init__.py maps url "/roles/detail" to detail_role() action of the
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| service| | | controller "hosts_resource".
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| +-----V------+ | | hosts.py impl. "hosts_resource" controller and its detail_role() method which calls _get_roles()
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| | api +--------------------------+ get_roles() calls self.db_api.role_get_all() to get role info from database.
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| +------------+ | self.db_api = daisy.db.get_api().
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| |
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| | +--> daisy/daisy/db/
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| +------------+ | | __init__.py impl. get_api() method which calls importutils.import_module(CONF.data_api) to
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| | | | | allocate a api object. CONF.data_api is initialized as daisy.db.sqlalchemy.api by
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| | daisy | | | daisy/daisy/common/config.py before hand.
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| | database +-----------------------------+
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| | impl. | | daisy/daisy/db/sqlalchemy/
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| | | | api.py impl. api.role_get_all() methods which uses query=session.query(models.Role)...
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| +------------+ | to query all roles in database.
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+-------------------+
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