6. 安装neutron（控制节点）— OpenStack Queens 三节点部署

本操作在控制节点上完成

在keystone中添加用户及服务

添加neutron用户

root@controller ~(keystone)# openstack user create --domain default --project service --password root neutron
+---------------------+----------------------------------+
| Field               | Value                            |
+---------------------+----------------------------------+
| default_project_id  | 2fae0cd7579441f88cab61f4291bfd17 |
| domain_id           | default                          |
| enabled             | True                             |
| id                  | 9096dfa8801342a39393fb9e1c028903 |
| name                | neutron                          |
| options             | {}                               |
| password_expires_at | None                             |
+---------------------+----------------------------------+

为用户添加管理员角色

root@controller ~(keystone)# openstack role add --project service --user neutron admin

创建服务

root@controller ~(keystone)# openstack service create --name neutron --description "OpenStack Networking service" network
+-------------+----------------------------------+
| Field       | Value                            |
+-------------+----------------------------------+
| description | OpenStack Networking service     |
| enabled     | True                             |
| id          | 55d64b0169344760acbafb3a0c22c3c0 |
| name        | neutron                          |
| type        | network                          |
+-------------+----------------------------------+

创建nentron服务endpoint（public,internal,admin）

root@controller ~(keystone)# openstack endpoint create --region RegionOne network public http://10.0.0.7:9696
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 098d368ae5d84927b2f6ee25a5a66b4c |
| interface    | public                           |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 55d64b0169344760acbafb3a0c22c3c0 |
| service_name | neutron                          |
| service_type | network                          |
| url          | http://10.0.0.7:9696             |
+--------------+----------------------------------+
root@controller ~(keystone)# openstack endpoint create --region RegionOne network internal http://10.0.0.7:9696
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 05a979c037cf46afb2ce096ab737f5f5 |
| interface    | internal                         |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 55d64b0169344760acbafb3a0c22c3c0 |
| service_name | neutron                          |
| service_type | network                          |
| url          | http://10.0.0.7:9696             |
+--------------+----------------------------------+
root@controller ~(keystone)# openstack endpoint create --region RegionOne network admin http://10.0.0.7:9696
+--------------+----------------------------------+
| Field        | Value                            |
+--------------+----------------------------------+
| enabled      | True                             |
| id           | 3e34074e55e6404fbe390298f6f5e88c |
| interface    | admin                            |
| region       | RegionOne                        |
| region_id    | RegionOne                        |
| service_id   | 55d64b0169344760acbafb3a0c22c3c0 |
| service_name | neutron                          |
| service_type | network                          |
| url          | http://10.0.0.7:9696             |
+--------------+----------------------------------+

为neutron添加数据库

root@controller ~(keystone)# mysql
Welcome to the MariaDB monitor.  Commands end with ; or g.
Your MariaDB connection id is 726
Server version: 10.0.38-MariaDB-0ubuntu0.16.04.1 Ubuntu 16.04

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.

MariaDB [(none)]> create database neutron_ml2;
Query OK, 1 row affected (0.18 sec)

MariaDB [(none)]> grant all privileges on neutron_ml2.* to neutron@'localhost' identified by 'root';
Query OK, 0 rows affected (0.18 sec)

MariaDB [(none)]> grant all privileges on neutron_ml2.* to neutron@'%' identified by 'root';
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)

MariaDB [(none)]> exit
Bye

安装配置neutron

安装neutron服务软件包

root@controller ~(keystone)# apt -y install neutron-server neutron-metadata-agent neutron-plugin-ml2 python-neutronclient

由于官方配置文件修改较为麻烦，这里直接创建一个新的配置文件

root@controller ~(keystone)# mv /etc/neutron/neutron.conf /etc/neutron/neutron.conf.org
root@controller ~(keystone)# vi /etc/neutron/neutron.conf

# 添加以下内容，保存退出
[DEFAULT]
core_plugin = ml2
service_plugins = router
auth_strategy = keystone
state_path = /var/lib/neutron
dhcp_agent_notification = True
allow_overlapping_ips = True
notify_nova_on_port_status_changes = True
notify_nova_on_port_data_changes = True
transport_url = rabbit://openstack:root@controller

[agent]
root_helper = sudo /usr/bin/neutron-rootwrap /etc/neutron/rootwrap.conf

[keystone_authtoken]
auth_uri = http://controller:5000
auth_url = http://controller:5000
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = neutron
password = root

[database]
connection = mysql+pymysql://neutron:root@controller/neutron_ml2

[nova]
auth_url = http://controller:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = nova
password = root

[oslo_concurrency]
lock_path = $state_path/tmp

因为配置文件是新建的，这里把权限加回去

root@controller ~(keystone)# chmod 640 /etc/neutron/neutron.conf
root@controller ~(keystone)# chgrp neutron /etc/neutron/neutron.conf

修改元数据代理配置

root@controller ~(keystone)# vi /etc/neutron/metadata_agent.ini

# 第22行：去掉注释并添加控制节点IP
nova_metadata_host = 10.0.0.7
 
# 第34行：去掉注释并输入元数据代理共享密码
metadata_proxy_shared_secret = metadata_secret
 
# 第260行：去掉注释并添加控制节点IP
memcache_servers = 10.0.0.7:11211

修改二层插件配置，使用OVS作为虚拟交换机

root@controller ~(keystone)# vi /etc/neutron/plugins/ml2/ml2_conf.ini

# 第129行：添加相应设置（tenant_network_types设置暂时留空，之后会设置）

[ml2]
type_drivers = flat,vlan,gre,vxlan
tenant_network_types =
mechanism_drivers = openvswitch,l2population
extension_drivers = port_security

# 第262行：去掉注释并添加firewall_driver

enable_security_group = True
firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver

# 最后一行：取消注释
enable_ipset = True

修改nova配置文件

root@controller ~(keystone)# vi /etc/nova/nova.conf

# 把以下设置添加到[DEFAULT]栏目里

use_neutron = True
linuxnet_interface_driver = nova.network.linux_net.LinuxOVSInterfaceDriver
firewall_driver = nova.virt.firewall.NoopFirewallDriver

# 在配置文件最后添加新的栏目并填写以下设置，元数据代理共享密码要跟之前设置的一样
[neutron]
auth_url = http://controller:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = neutron
password = root
service_metadata_proxy = True
metadata_proxy_shared_secret = metadata_secret

创建链接文件、同步数据库、重启服务

创建链接文件

root@controller ~(keystone)# ln -s /etc/neutron/plugins/ml2/ml2_conf.ini /etc/neutron/plugin.ini

同步数据库

root@controller ~(keystone)# su -s /bin/bash neutron -c "neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini upgrade head"
...
...
INFO  [alembic.runtime.migration] Running upgrade f83a0b2964d0 -> fd38cd995cc0, change shared attribute for firewall resource
  OK

重启相关服务并设置自启动

root@controller ~(keystone)# systemctl restart neutron-server neutron-metadata-agent nova-api
root@controller ~(keystone)# systemctl enable neutron-server neutron-metadata-agent
Synchronizing state of neutron-server.service with SysV init with /lib/systemd/systemd-sysv-install...
Executing /lib/systemd/systemd-sysv-install enable neutron-server
Synchronizing state of neutron-metadata-agent.service with SysV init with /lib/systemd/systemd-sysv-install...
Executing /lib/systemd/systemd-sysv-install enable neutron-metadata-agent

参考

• Server World
• DennisCai's blog