OpenStack计费项目Cloudkitty安装（个人整理）

    OpenStack计费项目Cloudkitty安装           

云计算是一种按需付费的服务模式，虽然OpenStack前期在计量方面走了些“弯路”，但现在的ceilometer、gnocchi、aodh、panko项目的稳步并进算是让其峰回路转。然而，目前来看OpenStack的计费项目Cloudkitty并未柳暗花明，为此，借助本文向大家介绍Cloudkitty的架构、用户使用指导、开发以及社区方面的最新动态，希望可以吸引更多方面的关注、使用和社区参与。
当前upstream版本Cloudkitty可以完成虚拟机实例(compute)、云硬盘(volume)、镜像(image)、网络进出流量(network.bw.in, network.bw.out)、浮动IP(network.floating)的计费。得益于Cloudkitty的巧妙而优秀的设计，软件插件化思想更是体现的淋漓尽致，使得添加新的计费源异常容易，版本升级也十分方便。同样也能方便将Cloudkitty用于cloudstack、VMWare等环境中。
以下是M版openstack在centos7系统下的安装步骤：

1.准备openstack mitaka源并安装相应的packages

# Vi /etc/yum.repos.d/cloudkitty.repo

[cloudkitty]

name=CloudKitty repository (Mitaka)

baseurl=http://archive.objectif-libre.com/cloudkitty/el7/mitaka/

gpgcheck=0

gpgkey=http://archive.objectif-libre.com/ol.asc

2.组件安装

#  yum install openstack-cloudkitty-api openstack-cloudkitty-processor openstack-cloudkitty-dashboard python-cloudkittyclient

3.准备cloudkitty运行所依赖的环境创建cloudkitty数据库

MariaDB [(none)]> CREATE DATABASE cloudkitty;

MariaDB [(none)]> GRANT ALL PRIVILEGES ON cloudkitty.* TO 'cloudkitty'@'localhost' IDENTIFIED BY 'password';

MariaDB [(none)]> GRANT ALL PRIVILEGES ON cloudkitty.* TO 'cloudkitty'@'%' IDENTIFIED BY 'password';

4.在keystone中创建相应的用户和endpoint

[root@zhangguoqing-dev ~(keystone_admin)]# keystone user-create --name cloudkitty --pass password  --email cloudkitty@localhost

[root@zhangguoqing-dev ~(keystone_admin)]# keystone user-role-add --user cloudkitty --role admin --tenant services

[root@zhangguoqing-dev ~(keystone_admin)]# keystone endpoint-create --service-id  %CLOUDKITTY_SERVICE_ID%  \

--publicurl http://192.168.0.248:8888 \

    --adminurl http://192.168.0.248:8888 \

--internalurl http://192.168.0.248:8888 \

--region RegionOne

5.新建rating角色，并对admin租户进行计费

[root@zhangguoqing-dev ~(keystone_admin)]# keystone role-create --name rating

[root@zhangguoqing-dev ~(keystone_admin)]# keystone user-role-add --user cloudkitty --role rating --tenant admin

6.配置/etc/cloudkitty/cloudkitty.conf，参考如下

[DEFAULT]

debug = Truelog_

dir = /var/log/cloudkitty

[collect]

period = 3600

Services=compute,image,volume,network.bw.in,network.bw.out,network.floating

[database]

connection=mysql+pymysql://cloudkitty:password@192.168.0.248/cloudkitty

[keystone_authtoken]

auth_uri=http://192.168.0.248:5000/v2.0

identity_uri=http://192.168.0.248:35357

admin_password=password

admin_user=cloudkitty

admin_tenant_name=services

[auth]

auth_type = password

auth_url = http://192.168.0.248:5000

username = cloudkitty

user_domain_id = default

password = password

project_domain_id = default

project_name = services

[keystone_fetcher]

auth_section = auth

[ceilometer_collector]

auth_section = auth

[oslo_messaging_rabbit]

amqp_durable_queues=False

rabbit_hosts=192.168.0.248:5672

rabbit_userid = guest

rabbit_password = guest

[storage]

backend = sqlalchemy

[tenant_fetcher]

backend = keystone

7.初始化数据库                  

# cloudkitty-dbsync upgrade

8.初始化后端存储            

# cloudkitty-storage-init

9.开启服务

systemctl enable cloudkitty-api.service cloudkitty-processor.service

systemctl start cloudkitty-api.service cloudkitty-processor.service

10.重启httpd服务

service httpd restart

能不能讲一下，cloudkitty工作原理之类的知识？