@TOC
前言
什么是CloudKitty？
CloudKitty是OpenStack等的评级即服务项目。该我的项目旨在成为云的退款和评级的通用解决方案。从历史上看，它只能在OpenStack上下文中运行它，但当初能够在独立模式下运行CloudKitty。
CloudKitty容许进行基于指标的评级：它轮询终端节点以检索无关特定指标的度量值和元数据，将评级规定利用于收集的数据，并将评级数据推送到其存储后端。
CloudKitty是高度模块化的，这使得增加新性能变得容易。
架构
CloudKitty能够分为四大局部：
- Data retrieval (API) 数据检索
- Data collection (cloudkitty-processor) 数据收集
- Data rating 数据评级
- Data storage 数据存储
这些局部由两个过程解决：和 。数据检索局部由过程解决，其余局部由 解决。cloudkitty-apicloudkitty-processorcloudkitty-apicloudkitty-processor
以下是 CloudKitty 架构的概述：
装置
yum install openstack-cloudkitty-api openstack-cloudkitty-processor openstack-cloudkitty-ui配置
编辑/etc/cloudkitty/cloudkitty.conf以配置 CloudKitty
[DEFAULT]verbose = Truelog_dir = /var/log/cloudkitty[oslo_messaging_rabbit]rabbit_userid = openstackrabbit_password = RABBIT_PASSWORDrabbit_hosts = RABBIT_HOST[auth]username = cloudkittypassword = CK_PASSWORDtenant = serviceregion = RegionOneurl = http://localhost:5000/v2.0[keystone_authtoken]username = cloudkittypassword = CK_PASSWORDproject_name = serviceregion = RegionOneauth_url = http://localhost:5000/v2.0auth_plugin = password[database]connection = mysql://cloudkitty:CK_DBPASS@localhost/cloudkitty[keystone_fetcher]username = adminpassword = ADMIN_PASSWORDtenant = adminregion = RegionOneurl = http://localhost:5000/v2.0[ceilometer_collector]username = cloudkittypassword = CK_PASSWORDtenant = serviceregion = RegionOneurl = http://localhost:5000设置数据库和存储后端
[root@controller ~]# mysql -uroot -p000000Welcome to the MariaDB monitor. Commands end with ; or \g.Your MariaDB connection id is 374Server version: 10.1.20-MariaDB MariaDB ServerCopyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.MariaDB [(none)]> CREATE DATABASE cloudkitty;Query OK, 1 row affected (0.00 sec)MariaDB [(none)]> GRANT ALL PRIVILEGES ON cloudkitty.* TO 'cloudkitty'@'localhost' IDENTIFIED BY '000000';Query OK, 0 rows affected (0.00 sec)MariaDB [(none)]> GRANT ALL PRIVILEGES ON cloudkitty.* TO 'cloudkitty'@'%' IDENTIFIED BY '000000';Query OK, 0 rows affected (0.00 sec)运行数据库同步脚本
[root@controller ~]# cloudkitty-dbsync upgradeINFO [alembic.runtime.migration] Context impl MySQLImpl.INFO [alembic.runtime.migration] Will assume non-transactional DDL.INFO [alembic.runtime.migration] Running upgrade -> 464e951dc3b8, Initial migrationINFO [alembic.runtime.migration] Running upgrade 464e951dc3b8 -> 2ac2217dcbd9, Added support for meta collectorINFO [alembic.runtime.migration] Running upgrade 2ac2217dcbd9 -> 385e33fef139, Added priority to modules_state.INFO [alembic.runtime.migration] Context impl MySQLImpl.INFO [alembic.runtime.migration] Will assume non-transactional DDL.INFO [alembic.runtime.migration] Running upgrade -> 3dd7e13527f3, Initial migrationINFO [alembic.runtime.migration] Running upgrade 3dd7e13527f3 -> 4fa888fd7eda, Added threshold support.INFO [alembic.runtime.migration] Running upgrade 4fa888fd7eda -> 54cc17accf2c, Fixed constraint name.INFO [alembic.runtime.migration] Running upgrade 54cc17accf2c -> 10d2738b67df, Rename mapping table to hashmap_mappings.INFO [alembic.runtime.migration] Running upgrade 10d2738b67df -> f8c799db4aa0, Fix unnamed constraints.INFO [alembic.runtime.migration] Running upgrade f8c799db4aa0 -> c88a06b1cfce, Clean hashmap fields constraints./usr/lib64/python2.7/site-packages/sqlalchemy/engine/default.py:507: Warning: Duplicate index `uniq_field_per_service`. This is deprecated and will be disallowed in a future release. cursor.execute(statement, parameters)INFO [alembic.runtime.migration] Running upgrade c88a06b1cfce -> 4da82e1c11c8, Add per tenant hashmap supportINFO [alembic.runtime.migration] Context impl MySQLImpl.INFO [alembic.runtime.migration] Will assume non-transactional DDL.INFO [alembic.runtime.migration] Running upgrade -> 4f9efa4601c0, Initial migration.初始化存储后端
[root@controller ~]# cloudkitty-storage-initNo handlers could be found for logger "cloudkitty.utils"INFO [alembic.runtime.migration] Context impl MySQLImpl.INFO [alembic.runtime.migration] Will assume non-transactional DDL.INFO [alembic.runtime.migration] Running upgrade -> 17fd1b237aa3, Initial migrationINFO [alembic.runtime.migration] Running upgrade 17fd1b237aa3 -> 792b438b663, added tenant informationsINFO [alembic.runtime.migration] Running upgrade 792b438b663 -> 307430ab38bc, improve qty precisionINFO [alembic.runtime.migration] Running upgrade 307430ab38bc -> c703a1bad612, improve_qty_digitCloudKitty 应用 Keystone 进行身份验证，并提供rating服务。
[root@controller ~]# openstack user create --domain demo --password 000000 cloudkitty+---------------------+----------------------------------+| Field | Value |+---------------------+----------------------------------+| domain_id | d5db5c4ee4a14492b69408f63107d11f || enabled | True || id | f1dea9309b834edba3aa4c1b8607dc16 || name | cloudkitty || options | {} || password_expires_at | None |+---------------------+----------------------------------+[root@controller ~]# openstack role add --project service --user cloudkitty admin对于应由 CloudKitty解决的每个租户，将rating角色赋予 cloudkitty ：
[root@controller ~]# openstack role create rating+-----------+----------------------------------+| Field | Value |+-----------+----------------------------------+| domain_id | None || id | ee01d36a397b4b0ebcb579044c32a73c || name | rating |+-----------+----------------------------------+创立rating服务及其端点：
[root@controller ~]# openstack service create --name cloudkitty --description "OpenStack rating" rating+-------------+----------------------------------+| Field | Value |+-------------+----------------------------------+| description | OpenStack rating || enabled | True || id | 78f3d51cf74843cd8d325b790e0c2b1c || name | cloudkitty || type | rating |+-------------+----------------------------------+openstack endpoint create --region RegionOne rating public http://controller:9292openstack endpoint create --region RegionOne rating internal http://controller:9292openstack endpoint create --region RegionOne rating admin http://controller:9292[root@controller ~]# openstack endpoint create --region RegionOne rating public http://controller:9292+--------------+----------------------------------+| Field | Value |+--------------+----------------------------------+| enabled | True || id | 48b75b9d2d764b56a5bee00ff75b03b1 || interface | public || region | RegionOne || region_id | RegionOne || service_id | 78f3d51cf74843cd8d325b790e0c2b1c || service_name | cloudkitty || service_type | rating || url | http://controller:9292 |+--------------+----------------------------------+[root@controller ~]# openstack endpoint create --region RegionOne rating internal http://controller:9292+--------------+----------------------------------+| Field | Value |+--------------+----------------------------------+| enabled | True || id | b4f7fffa539441a68506db90b3ae89ce || interface | internal || region | RegionOne || region_id | RegionOne || service_id | 78f3d51cf74843cd8d325b790e0c2b1c || service_name | cloudkitty || service_type | rating || url | http://controller:9292 |+--------------+----------------------------------+[root@controller ~]# openstack endpoint create --region RegionOne rating admin http://controller:9292+--------------+----------------------------------+| Field | Value |+--------------+----------------------------------+| enabled | True || id | a607a077f119417d9e650c16dcd61f10 || interface | admin || region | RegionOne || region_id | RegionOne || service_id | 78f3d51cf74843cd8d325b790e0c2b1c || service_name | cloudkitty || service_type | rating || url | http://controller:9292 |+--------------+----------------------------------+启动
[root@controller ~]# systemctl start cloudkitty-processor.service[root@controller ~]# cloudkitty-api -p 8889 #长期启动APINo handlers could be found for logger "cloudkitty.utils"/usr/lib/python2.7/site-packages/pecan/__init__.py:122: RuntimeWarning: `static_root` is only used when `debug` is True, ignoring RuntimeWarning********************************************************************************STARTING test server cloudkitty.api.app.build_wsgi_appAvailable at http://controller:8889/DANGER! For testing only, do not use in production********************************************************************************192.168.200.1 - - [29/Apr/2022 15:06:41] "GET / HTTP/1.1" 200 209检索并装置 CloudKitty 的仪表板
git clone https://opendev.org/openstack/cloudkitty-dashboard.gitpython setup.py installyum install -y wgetwget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repoyum -y install python-pipPY_PACKAGES_PATH=`pip --version | cut -d' ' -f4`ln -s $PY_PACKAGES_PATH/cloudkittydashboard/enabled/_[0-9]*.py /usr/share/openstack-dashboard/openstack_dashboard/enabled/[root@controller bin]# systemctl restart httpd.service memcached.service