OpenStack-placement模块部署

1.1 创建数据库实例和数据库用户

[root@ct ~]# mysql -uroot -p
MariaDB [(none)]> CREATE DATABASE placement;
MariaDB [(none)]> GRANT ALL PRIVILEGES ON placement.* TO
'placement'@'localhost' IDENTIFIED BY 'PLACEMENT_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON placement.* TO
'placement'@'%' IDENTIFIED BY 'PLACEMENT_DBPASS';
MariaDB [(none)]> flush privileges;
MariaDB [(none)]> exit；

1.2 创建Placement服务用户和API的endpoint
创建placement用户

[root@ct ~]# openstack user create --domain default --password PLACEMENT_PASS placement

给与placement用户对service项目拥有admin权限

[root@ct ~]# openstack role add --project service --user placement admin

创建一个placement服务，服务类型为placement

[root@ct ~]# openstack service create --name placement --description "Placement API" placement

注册API端口到placement的service中；注册的信息会写入到mysql中

[root@ct ~]# openstack endpoint create --region RegionOne placement public http://ct:8778
[root@ct ~]# openstack endpoint create --region RegionOne placement internal http://ct:8778
[root@ct ~]# openstack endpoint create --region RegionOne placement admin http://ct:8778

安装placement服务

yum -y install openstack-placement-api

修改placement配置文件

cp -p  /etc/placement/placement.conf{,.bak}
grep -Ev '^$|#' /etc/placement/placement.conf.bak > /etc/placement/placement.conf
openstack-config --set /etc/placement/placement.conf placement_database connection mysql+pymysql://placement:PLACEMENT_DBPASS@ct/placement
openstack-config --set /etc/placement/placement.conf api auth_strategy keystone
openstack-config --set /etc/placement/placement.conf keystone_authtoken auth_url  http://ct:5000/v3
openstack-config --set /etc/placement/placement.conf keystone_authtoken memcached_servers ct:11211
openstack-config --set /etc/placement/placement.conf keystone_authtoken auth_type password
openstack-config --set /etc/placement/placement.conf keystone_authtoken project_domain_name Default
openstack-config --set /etc/placement/placement.conf keystone_authtoken user_domain_name Default
openstack-config --set /etc/placement/placement.conf keystone_authtoken project_name service
openstack-config --set /etc/placement/placement.conf keystone_authtoken username placement
openstack-config  --set /etc/placement/placement.conf keystone_authtoken password PLACEMENT_PASS

导入数据库

[root@ct~]# su -s /bin/sh -c "placement-manage db sync" placement

修改Apache配置文件

1 00-placemenct-api.conf（安装完placement服务后会自动创建该文件-虚拟主机配置）
 2 [root@ct conf.d]# cd /etc/httpd/conf.d/
 3 [root@ct conf.d]# cat 00-placement-api.conf         #安装完placement会自动创建此文件
 4 Listen 8778
 5 
 6 <VirtualHost *:8778>
 7   WSGIProcessGroup placement-api
 8   WSGIApplicationGroup %{GLOBAL}
 9   WSGIPassAuthorization On
10   WSGIDaemonProcess placement-api processes=3 threads=1 user=placement group=placement
11   WSGIScriptAlias / /usr/bin/placement-api
12   <IfVersion >= 2.4>
13     ErrorLogFormat "%M"
14   </IfVersion>
15   ErrorLog /var/log/placement/placement-api.log
16   #SSLEngine On
17   #SSLCertificateFile ...
18   #SSLCertificateKeyFile ...
19 </VirtualHost>
20 
21 Alias /placement-api /usr/bin/placement-api
22 <Location /placement-api>
23   SetHandler wsgi-script
24   Options +ExecCGI
25   WSGIProcessGroup placement-api
26   WSGIApplicationGroup %{GLOBAL}
27   WSGIPassAuthorization On
28 </Location>
29 <Directory /usr/bin>            #此处是bug，必须添加下面的配置来启用对placement api的访问，否则在访问apache的
30 <IfVersion >= 2.4>                #api时会报403；添加在文件的最后即
31     Require all granted
32 </IfVersion>
33 <IfVersion < 2.4>                #apache版本；允许apache访问/usr/bin目录；否则/usr/bin/placement-api将不允许被访问
34     Order allow,deny                
35     Allow from all            #允许apache访问
36 </IfVersion>
37 </Directory>
[root@ct placement]# systemctl restart httpd

测试

curl 测试访问
 2 [root@ct conf.d]# curl ct:8778
 3 {"versions": [{"status": "CURRENT", "min_version": "1.0", "max_version": "1.36", "id": "v1.0", "links": [{"href": "", "rel": "self"}]}]}
 4 
 5 查看端口占用（netstat、lsof）
 6 [root@ct conf.d]# netstat -anpt | grep 8778
 7 tcp        0      0 192.168.100.100:56856   192.168.100.100:8778    TIME_WAIT   -                   
 8 tcp6       0      0 :::8778                 :::*                    LISTEN      59378/httpd         
 9 tcp6       0      0 192.168.100.100:8778    192.168.100.101:52862   ESTABLISHED 60167/httpd         
10 tcp6       0      0 192.168.100.100:8778    192.168.100.102:42474   TIME_WAIT   -                   
11 tcp6       0      0 192.168.100.100:8778    192.168.100.102:42476   FIN_WAIT2   -                   
12 tcp6       0      0 192.168.100.100:8778    192.168.100.101:52860   TIME_WAIT   -        
13 
14 检查placement状态
15 [root@ct conf.d]# placement-status upgrade check
16 +----------------------------------+
17 | Upgrade Check Results            |
18 +----------------------------------+
19 | Check: Missing Root Provider IDs |
20 | Result: Success                  |
21 | Details: None                    |
22 +----------------------------------+
23 | Check: Incomplete Consumers      |
24 | Result: Success                  |
25 | Details: None                    |
26 +----------------------------------+