OpenStack（3）-placement服務部署

放置服務提供用於跟蹤資源提供者清單和用法的HTTP API。可以在展示位置概述中找到更多詳細信息。

Placement作為數據模型上的Web服務運行。安裝涉及創建必要的數據庫以及安裝和配置Web服務。這是一個簡單的過程，但是有很多步驟可以將展示位置與OpenStack雲的其余部分集成。

1.創建placement相關的數據庫，並進行授權；

mysql> CREATE DATABASE placement;
Query OK, 1 row affected (0.00 sec)

mysql> GRANT ALL PRIVILEGES ON placement.* TO 'placement'@'localhost' IDENTIFIED BY '123';
Query OK, 0 rows affected, 1 warning (0.01 sec)

mysql> GRANT ALL PRIVILEGES ON placement.* TO 'placement'@'%' IDENTIFIED BY '123';
Query OK, 0 rows affected, 1 warning (0.00 sec)

2.創建palcement用戶，設置密碼；（確保以admin來運行）

[root@sxb2 ~]# openstack user create --domain default --password-prompt placement
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 23b2c39d0f3c4262ad4b4716341d51ff |
| name                | placement                        |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

3.將palcmenet加入service，並以admin身份管理；

[root@sxb2 ~]# openstack role add --project service --user placement admin

4.在服務目錄中創建Placement API條目；

[root@sxb2 ~]# openstack service create --name placement --description "Placement API" placement
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | Placement API                    |
| enabled     | True                             |
| id          | e37cb13ed33648b8a6e0d1e09c0a4af0 |
| name        | placement                        |
| type        | placement                        |
+-------------+----------------------------------+

5.創建Placement API服務端點；

[root@sxb2 ~]# openstack endpoint create --region RegionOne placement public http://192.168.88.102:8778^C
[root@sxb2 ~]# openstack endpoint create --region RegionOne placement internal http://192.168.88.102:8778^C
[root@sxb2 ~]# openstack endpoint create --region RegionOne placement admin http://192.168.88.102:8778^C

6.安裝軟件openstack-placement-api；

[root@sxb2 ~]# yum install openstack-placement-api -y

7.配置/etc/placement/placement.conf文件；

[root@sxb2 ~]# vim /etc/placement/placement.conf

[placement_database]
connection = mysql+pymysql://placement:123@192.168.88.102/placement

[api]
auth_strategy = keystone

[keystone_authtoken]
auth_url = http://192.168.88.102:5000/v3
memcached_servers = 192.168.88.102:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = placement
password = 123

8.placement初始化數據庫；

[root@sxb2 ~]# su -s /bin/sh -c "placement-manage db sync" placement

9.重啟httpd服務；

[root@sxb2 ~]# systemctl restart httpd

接下來我們進行測試；（確保以admin用戶運行）

[root@sxb2 ~]# placement-status upgrade check
+----------------------------------+
| Upgrade Check Results            |
+----------------------------------+
| Check: Missing Root Provider IDs |
| Result: Success                  |
| Details: None                    |
+----------------------------------+
| Check: Incomplete Consumers      |
| Result: Success                  |
| Details: None                    |
+----------------------------------+

我們還需要在httpd添加授權；

[root@sxb1 ~]# vim /etc/httpd/conf.d/00-placement-api.conf 


<Files "placement-api">
        Require all granted
</Files>

我們的placement到這里計算完成了，一下章配置計算服務 nova