A11. openstack架构实战-增加计算节点

环境准备

1：主机名设置

hostnamectl set-hostname compute02
2：域名解析

[root@compute02 ~]# tail  /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
10.100.201.201 controller01
10.100.214.202 compute01
10.100.214.203 compute02
3：配置yum源：

curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
yum install centos-release-openstack-queens.noarch  -y

4：下载libvirt插件

[root@compute02 yum.repos.d]# yum install libvirt -y

5：配置时间同步

[root@compute02 yum.repos.d]# yum install chrony -y

[root@compute02 yum.repos.d]# systemctl start chronyd

[root@compute02 yum.repos.d]# systemctl enable chronyd
[root@compute02 yum.repos.d]# systemctl status  chronyd

6：安装openstack的客户端和openstack-selinux

[root@compute02 yum.repos.d]# yum install python-openstackclient openstack-selinux -y

配置计算服务

7：安装软件包

[root@compute02 ~]# yum install openstack-nova-compute -y

8：配置相关文件：（只需要将已经有的计算节点的配置文件更改）

[root@compute01 ~]# scp /etc/nova/nova.conf  10.100.214.203:/etc/nova/
修改/etc/nova/nova.conf的ip为自己本机的ip

9：启动服务

[root@compute02 ~]# systemctl start libvirtd.service openstack-nova-compute.service
[root@compute02 ~]# systemctl status  libvirtd.service openstack-nova-compute.service

配置网络服务：

1：安装相关软件包：

[root@compute02 ~]# yum install -y  openstack-neutron-linuxbridge ebtables ipset

2：network的相关配置

拷贝已有计算机点的配置文件：

[root@compute02 ~]# scp 10.100.214.202:/etc/neutron/neutron.conf /etc/neutron/
root@10.100.214.202's password:
neutron.conf                                                                                       100%   72KB  16.2MB/s   00:00

[root@compute02 ~]# scp 10.100.214.202:/etc/neutron/plugins/ml2/linuxbridge_agent.ini /etc/neutron/plugins/ml2/

启动服务：

[root@compute02 ~]#  systemctl enable neutron-linuxbridge-agent.service && systemctl start  neutron-linuxbridge-agent.service

3：检测

[root@controller01 ~]# neutron agent-list

neutron CLI is deprecated and will be removed in the future. Use openstack CLI instead.
+--------------------------------------+--------------------+--------------+-------------------+-------+----------------+---------------------------+
| id                                   | agent_type         | host         | availability_zone | alive | admin_state_up | binary                    |
+--------------------------------------+--------------------+--------------+-------------------+-------+----------------+---------------------------+
| 0ed9a50d-d805-4cb4-bdb0-f09cb496af0b | Linux bridge agent | compute01    |                   | :-)   | True           | neutron-linuxbridge-agent |
| a36cf664-4476-4d81-99ad-1935e6bcc433 | Linux bridge agent | compute02    |                   | :-)   | True           | neutron-linuxbridge-agent |
| af066e09-2b33-4742-a342-917c0e55b4d3 | DHCP agent         | controller01 | nova              | :-)   | True           | neutron-dhcp-agent        |
| cf9adb65-b6c4-4088-9d22-96967b4505c5 | Linux bridge agent | controller01 |                   | :-)   | True           | neutron-linuxbridge-agent |
| ee2e8e9a-4512-48e9-8dc2-e3f262f433bc | Metadata agent     | controller01 |                   | :-)   | True           | neutron-metadata-agent    |
+--------------------------------------+--------------------+--------------+-------------------+-------+----------------+------------