CentOS 7部署OpenStack--部署Newtron(计算节点)
郝朝阳 DevOps视角
写在前面 本篇文章本应该是在周二的时候更新的，当时并没有更新，主要是在考虑怎样做才能把这个公众号给做好，给大家提供更好的帮助。思考了一天，仍没有什么好的想法。如果大家有好的建议，好的想法可在文章底部留言。
安装neutron
[root@compute ~]# yum install -y openstack-neutronopenstack-neutron-linuxbridge ebtables ipset
配置neutron
控制节点和计算节点的配置一样，可以直接从控制节点拷贝。
[root@controller ~]# scp /etc/neutron/neutron.conf 192.168.1.12:/etc/neutron/
[root@controller ~]# scp /etc/neutron/plugins/ml2/linuxbridge_agent.ini192.168.1.12:/etc/neutron/plugins/ml2/
[root@controller ~]# scp /etc/neutron/plugins/ml2/ml2_conf.ini192.168.1.12:/etc/neutron/plugins/ml2
[root@compute ~]# ln -s /etc/neutron/plugins/ml2/ml2_conf.ini/etc/neutron/plugin.ini
配置nova
[root@compute ~]# vim /etc/nova/nova.conf
3031 [neutron]
3032 url = http://192.168.1.11:9696
3033 auth_url = http://192.168.1.11:35357
3034 auth_plugin = password
3035 project_domain_id = default
3036 user_domain_id = default
3037 region_name = RegionOne
3038 project_name = service
3039 username = neutron
3040 password = neutron
启动服务
[root@compute ~]# systemctl restart openstack-nova-compute
[root@compute ~]# systemctl enable neutron-linuxbridge-agent.service
[root@compute ~]# systemctl start neutron-linuxbridge-agent.service
查看验证
[root@controller ~]# neutron agent-list
+--------------------------------------+--------------------+------------+-------+----------------+---------------------------+
| id | agent_type | host | alive | admin_state_up | binary |
+--------------------------------------+--------------------+------------+-------+----------------+---------------------------+
| 41bcc4cb-dea4-4a4d-9ffa-18209c746762 | Metadata agent | controller | :-) | True | neutron-metadata-agent |
| 5c7c894f-5260-49d7-9da4-c90c0a591fb6 | DHCP agent | controller | :-) | True | neutron-dhcp-agent |
| 681419da-ab0d-4721-a82c-ac9fadcced67 | Linux bridge agent |compute | :-) | True | neutron-linuxbridge-agent |
| 7df41d2f-f4a6-42cc-a761-83d9eab0a0f0 | Linux bridge agent | controller| :-) | True | neutron-linuxbridge-agent |
+--------------------------------------+--------------------+------------+-------+----------------+---------------------------+
创建网络
[root@controller ~]# neutron net-create flat --shared--provider:physical_network physnet1 --provider:network_type flat
Created a new network:
+---------------------------+--------------------------------------+
| Field |Value |
+---------------------------+--------------------------------------+
| admin_state_up |True |
| id |d9aa89ae-01ba-4a3d-b553-7e63d48d0acb |
| mtu |0 |
| name |flat |
| port_security_enabled |True |
| provider:network_type |flat |
| provider:physical_network | physnet1 |
| provider:segmentation_id | |
| router:external |False |
| shared |True |
| status |ACTIVE |
| subnets | |
| tenant_id |69d1967e59d247e6b7c4c3937d5baa89 |
+---------------------------+--------------------------------------+
[root@controller ~]# neutron net-list
+--------------------------------------+------+-----------------------------------------------------+
| id | name | subnets |
+--------------------------------------+------+-----------------------------------------------------+
| d9aa89ae-01ba-4a3d-b553-7e63d48d0acb | flat |a645f499-90a2-4e90-8bcb-f9040392c6bb 192.168.1.0/24 |
+--------------------------------------+------+-----------------------------------------------------+
创建子网
[root@controller ~]# neutron subnet-create flat 192.168.1.0/24 --nameflat-subnet --allocation-pool start=192.168.1.100,end=192.168.1.200--dns-nameserver 192.168.1.1 --gateway 192.168.1.1
Created a new subnet:
+-------------------+----------------------------------------------------+
| Field | Value |
+-------------------+----------------------------------------------------+
| allocation_pools | {"start":"192.168.1.100", "end": "192.168.1.200"} |
| cidr |192.168.1.0/24 |
| dns_nameservers |192.168.1.1 |
| enable_dhcp | True |
| gateway_ip |192.168.1.1 |
| host_routes | |
| id |a645f499-90a2-4e90-8bcb-f9040392c6bb |
| ip_version | 4 |
| ipv6_address_mode | |
| ipv6_ra_mode | |
| name |flat-subnet |
| network_id |d9aa89ae-01ba-4a3d-b553-7e63d48d0acb |
| subnetpool_id | |
| tenant_id |69d1967e59d247e6b7c4c3937d5baa89 |
+-------------------+----------------------------------------------------+
[root@controller ~]# neutron subnet-list
+--------------------------------------+-------------+----------------+----------------------------------------------------+
| id | name | cidr | allocation_pools |
+--------------------------------------+-------------+----------------+----------------------------------------------------+
| a645f499-90a2-4e90-8bcb-f9040392c6bb | flat-subnet | 192.168.1.0/24 |{"start": "192.168.1.100", "end":"192.168.1.200"} |
+--------------------------------------+-------------+----------------+----------------------------------------------------+
此时网络、存储（本地存储）、镜像已经完全具备，因此即使不安装cinder、dashboard就可以创建一台虚拟机了。下节就开始创建第一台虚拟机。
