5 Openstack-Ussuri-Placement部署-ubuntu1804
Placement具体功能如下：
1 通过HTTP请求来跟踪和过滤资源
2 数据保存在本地数据库中
3 具备丰富的资源管理和筛选策略
5.1 配置Placement数据库
#使用root登陆数据库：
mysql -u root -p
#创建placement数据库:
CREATE DATABASE placement;
#授予对placement数据库的访问权限，刷新退出数据库:
GRANT ALL PRIVILEGES ON placement.* TO 'placement'@'localhost' \
IDENTIFIED BY 'placement.123';
GRANT ALL PRIVILEGES ON placement.* TO 'placement'@'%' \
IDENTIFIED BY 'placement.123';
flush privileges;
exit
5.2 加载管理凭证
source adminrc.sh
5.3 创建Placement相关服务凭证
#创建Placement服务用户，并设置密码为placement.123
openstack user create --domain default --password-prompt placement
#输出
User Password:
Repeat User Password:
+---------------------+----------------------------------+
| Field | Value |
+---------------------+----------------------------------+
| domain_id | default |
| enabled | True |
| id | d061f7c67d29416dac324a51d5c93279 |
| name | placement |
| options | {} |
| password_expires_at | None |
+---------------------+----------------------------------+
#赋予Placement服务用户服务管理员权限及角色，无输出
openstack role add --project service --user placement admin
#创建Placement服务
openstack service create --name placement --description "Placement API" placement
#输出
+-------------+----------------------------------+
| Field | Value |
+-------------+----------------------------------+
| description | Placement API |
| enabled | True |
| id | 0d9cdd8f207147bf93b573203c8e78a3 |
| name | placement |
| type | placement |
+-------------+----------------------------------+
5.4 创建Placement API endpoints
#public
openstack endpoint create --region RegionOne placement public http://controller160:8778
#输出
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | d1bc3892f19a4f63b5c48c7ebb75f9b8 |
| interface | public |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 0d9cdd8f207147bf93b573203c8e78a3 |
| service_name | placement |
| service_type | placement |
| url | http://controller160:8778 |
+--------------+----------------------------------+
#internal
openstack endpoint create --region RegionOne placement internal http://controller160:8778
#输出
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | 1986f413ea1d4ed98059443ffde65b7d |
| interface | internal |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 0d9cdd8f207147bf93b573203c8e78a3 |
| service_name | placement |
| service_type | placement |
| url | http://controller160:8778 |
+--------------+----------------------------------+
#admin
openstack endpoint create --region RegionOne placement admin http://controller160:8778
#输出
+--------------+----------------------------------+
| Field | Value |
+--------------+----------------------------------+
| enabled | True |
| id | fd18f8b54f4441c6bbe4eacb42d1a415 |
| interface | admin |
| region | RegionOne |
| region_id | RegionOne |
| service_id | 0d9cdd8f207147bf93b573203c8e78a3 |
| service_name | placement |
| service_type | placement |
| url | http://controller160:8778 |
+--------------+----------------------------------+
5.5 部署与配置Placement
#安装包
apt install placement-api -y
#备份Placement配置
cp /etc/placement/placement.conf /etc/placement/placement.conf.bak
egrep -v "^$|^#" /etc/placement/placement.conf.bak >/etc/placement/placement.conf
#配置Placement配置文件，在对应项底下增加以下字段
#vim /etc/placement/placement.conf
[placement_database]
# ...
connection = mysql+pymysql://placement:placement.123@controller160/placement
[api]
# ...
auth_strategy = keystone
[keystone_authtoken]
# ...
www_authenticate_uri = http://controller160:5000
auth_url = http://controller160:5000
memcached_servers = controller160:11211
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = placement
password = placement.123
#填充placement数据库，无输出
su -s /bin/sh -c "placement-manage db sync" placement
#验证placement数据库是否正常写入：
mysql -h controller160 -uplacement -pplacement.123 -e "use placement;show tables;"
#重启apache服务，并配置开机启动:
systemctl restart apache2.service
systemctl status glance-api.service
5.6 Placement服务验证
#加载管理凭证
source adminrc.sh
#执行状态检查，都为success为正常
placement-status upgrade check
#输出
+----------------------------------+
| Upgrade Check Results |
+----------------------------------+
| Check: Missing Root Provider IDs |
| Result: Success |
| Details: None |
+----------------------------------+
| Check: Incomplete Consumers |
| Result: Success |
| Details: None |
+----------------------------------+
至此，Placement服务已部署完毕，如有问题请联系我改正，感激不尽！
5.x 部署过程遇到的问题汇总
eg.1 执行su -s /bin/sh -c "placement-manage db sync" placement 报错
1044, "Access denied for user 'placement'@'%' to database 'placement'"
解决方案：
1 查看授权表，发现权限没有被打开
SELECT host,user,password,Grant_priv,Super_priv FROM mysql.user;
+-----------+-----------+-------------------------------------------+------------+------------+
| host | user | password | Grant_priv | Super_priv |
+-----------+-----------+-------------------------------------------+------------+------------+
| localhost | root | *2683A2B8A9DE120C7B5CC6D45B5F7A2E708FAFCF | Y | Y |
| localhost | keystone | *2431959D1DBB9DEF2BB0E90F0C08387220989A5F | N | N |
| % | keystone | *2431959D1DBB9DEF2BB0E90F0C08387220989A5F | N | N |
| % | root | *2683A2B8A9DE120C7B5CC6D45B5F7A2E708FAFCF | N | N |
| localhost | glance | *4BED54445326D0D3477C30025D66AF8911CA854F | N | N |
| % | glance | *4BED54445326D0D3477C30025D66AF8911CA854F | N | N |
| localhost | placement | *7F75AD3C141B7CD8E66685A5505B1630D896092F | N | N |
| % | placement | *7F75AD3C141B7CD8E66685A5505B1630D896092F | N | N |
+-----------+-----------+-------------------------------------------+------------+------------+
2 更新用户权限：
UPDATE mysql.user SET Grant_priv='Y', Super_priv='Y' WHERE User='root';
或者
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'devops';
FLUSH PRIVILEGES;
+-----------+-----------+-------------------------------------------+------------+------------+
| host | user | password | Grant_priv | Super_priv |
+-----------+-----------+-------------------------------------------+------------+------------+
| localhost | root | *2683A2B8A9DE120C7B5CC6D45B5F7A2E708FAFCF | Y | Y |
| localhost | keystone | *2431959D1DBB9DEF2BB0E90F0C08387220989A5F | N | N |
| % | keystone | *2431959D1DBB9DEF2BB0E90F0C08387220989A5F | N | N |
| % | root | *2683A2B8A9DE120C7B5CC6D45B5F7A2E708FAFCF | Y | Y |
| localhost | glance | *4BED54445326D0D3477C30025D66AF8911CA854F | N | N |
| % | glance | *4BED54445326D0D3477C30025D66AF8911CA854F | N | N |
| localhost | placement | *7F75AD3C141B7CD8E66685A5505B1630D896092F | N | N |
| % | placement | *7F75AD3C141B7CD8E66685A5505B1630D896092F | N | N |
+-----------+-----------+-------------------------------------------+------------+------------+
eg2.root@controller160:~# placement-status upgrade check
SQL connection failed. 10 attempts left.
SQL connection failed. 9 attempts left.
SQL connection failed. 8 attempts left.
SQL connection failed. 7 attempts left.
SQL connection failed. 6 attempts left.
SQL connection failed. 5 attempts left.
解决方案：
1 检查mysql 3306是否启用
2 检查connection URL是否配置及密码是否正确
3 检查本机hosts文件是否有录入各节点对应的host列表
eg3.查看Resource Provider：资源提供者，实际提供资源的实体，例如：Compute Node、Storage Pool、IP Pool 等。
Inventory：资源清单，资源提供者所拥有的资源清单，例如：Compute Node 拥有的 vCPU、Disk、RAM 等 inventories。
解决方案：
yum install python3-osc-placement.noarch
[root@controller160 ~]# export OS_PLACEMENT_API_VERSION=1.28
[root@controller160 ~]# openstack resource class list
+----------------------------+
| name |
+----------------------------+
| VCPU |
| MEMORY_MB |
| DISK_GB |
| PCI_DEVICE |
| SRIOV_NET_VF |
| NUMA_SOCKET |
| NUMA_CORE |
| NUMA_THREAD |
| NUMA_MEMORY_MB |
| IPV4_ADDRESS |
| VGPU |
| VGPU_DISPLAY_HEAD |
| NET_BW_EGR_KILOBIT_PER_SEC |
| NET_BW_IGR_KILOBIT_PER_SEC |
| PCPU |
| MEM_ENCRYPTION_CONTEXT |
| FPGA |
| PGPU |
+----------------------------+
[root@controller160 ~]# openstack resource provider list
+--------------------------------------+------------+------------+--------------------------------------+----------------------+
| uuid | name | generation | root_provider_uuid | parent_provider_uuid |
+--------------------------------------+------------+------------+--------------------------------------+----------------------+
| f4021a77-37d8-4325-84a4-b47b0443aa02 | compute163 | 2 | f4021a77-37d8-4325-84a4-b47b0443aa02 | None |
| f76880fb-90b7-47fc-8105-68f8f3e08914 | compute164 | 2 | f76880fb-90b7-47fc-8105-68f8f3e08914 | None |
+--------------------------------------+------------+------------+--------------------------------------+----------------------+
[root@controller160 ~]# openstack resource provider inventory list f4021a77-37d8-4325-84a4-b47b0443aa02
+----------------+------------------+----------+----------+----------+-----------+-------+
| resource_class | allocation_ratio | min_unit | max_unit | reserved | step_size | total |
+----------------+------------------+----------+----------+----------+-----------+-------+
| VCPU | 16.0 | 1 | 1 | 0 | 1 | 1 |
| MEMORY_MB | 1.5 | 1 | 1826 | 512 | 1 | 1826 |
| DISK_GB | 1.0 | 1 | 14 | 0 | 1 | 14 |
+----------------+------------------+----------+----------+----------+-----------+-------+