OpenStack安装流程(juno版)- 添加网络服务(neutron)- controller节点

在controller节点上安装和配置

创建nova的数据库,服务证书和API端点

  1. 创建数据库:
    使用root身份进入数据库:
    $ mysql -u root -p

    创建nova数据库:
    <pre>CREATE DATABASE neutron;</pre>

    把neutron数据库的访问权限赋予名为neutron,来自任何主机地址的用户,并设定访问密码为NEUTRON_DBPASS(替换为合适的密码):
    <pre>GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'localhost' IDENTIFIED BY 'NEUTRON_DBPASS';

GRANT ALL PRIVILEGES ON neutron.* TO 'neutron'@'%' IDENTIFIED BY 'NEUTRON_DBPASS';</pre>

退出数据库。

  1. 启动admin证书:
    $ source admin-openrc.sh
  2. 创建服务证书:
    创建neutron用户:
    <pre>$ keystone user-create --name neutron --pass NEUTRON_PASS
PropertyValue
email
enabledTrue
id03fdaa93a85b4879a898d031947b81af
nameneutron
usernameneutron

+----------+----------------------------------+</pre>
用合适的密码代替NEUTRON_PASS。

admin角色赋予给neutron用户:
$ keystone user-role-add --user neutron --tenant service --role admin
这条命令不产生输出显示。

创建neutron服务实体:
<pre>$ keystone service-create --name neutron --type network \

--description "OpenStack Networking"
PropertyValue
descriptionOpenStack Networking
enabledTrue
idd3cf8211db414c069701f39e778d9765
nameneutron
typenetwork

+-------------+----------------------------------+</pre>

  1. 创建网络服务的API端点:
    <pre>$ keystone endpoint-create \

--service-id $(keystone service-list | awk '/ network / {print $2}') \
--publicurl http://controller:9696 \
--adminurl http://controller:9696 \
--internalurl http://controller:9696 \

--region regionOne
PropertyValue
adminurlhttp://controller:9696
ideb7fd6b67e4d4479886d164486a3fb71
internalurlhttp://controller:9696
publicurlhttp://controller:9696
regionregionOne
service_idd3cf8211db414c069701f39e778d9765

+-------------+----------------------------------+</pre>

安装neutron组件

# apt-get install neutron-server neutron-plugin-ml2 python-neutronclient

配置网络服务组件

编辑# vi /etc/neutron/neutron.conf文件:
[database]部分,设定数据库的访问选项,需把原始设定注释掉:
<pre>[database]<br>...<br>connection = mysql://neutron:NEUTRON_DBPASS@controller/neutron</pre>
NEUTRON_DBPASS为创建neutron数据库时设立的密码。

[DEFAULT]部分,设定RabbitMQ的访问选项:
<pre>[DEFAULT]<br>...<br>rpc_backend = rabbit<br>rabbit_host = controller<br>rabbit_password = RABBIT_PASS</pre>
RABBIT_PASS为RabbitMQ guest账户的密码。

[DEFAULT][keystone_authtoken]部分,设定认证服务的访问选项:
<pre>[DEFAULT]<br>...<br>auth_strategy = keystone</pre>
<pre>[keystone_authtoken]<br>...<br>auth_uri = <a href="http://controller" rel="nofollow noreferrer">http://controller</a>:5000/v2.0<br>identity_uri = <a href="http://controller" rel="nofollow noreferrer">http://controller</a>:35357<br>admin_tenant_name = service<br>admin_user = neutron<br>admin_password = NEUTRON_PASS</pre>
NEUTRON_PASS为创建neutron用户时使用的密码。在[keystone_authtoken]部分,注释掉 auth_host,auth_port,和auth_protocol的选项,因为identity_uri选项是直接代替它们的。

[DEFAULT]部分,开启Modular Layer 2(ML2)plug-in选项,设定router service和overlapping IP addresses选项:
<pre>[DEFAULT]<br>...<br>core_plugin = ml2<br>service_plugins = router<br>allow_overlapping_ips = True</pre>

[DEFAULT]部分,设定网络服务可以通知计算服务网络拓扑的变化:
<pre>[DEFAULT]<br>...<br>notify_nova_on_port_status_changes = True<br>notify_nova_on_port_data_changes = True<br>nova_url = <a href="http://controller" rel="nofollow noreferrer">http://controller</a>:8774/v2<br>nova_admin_auth_url = <a href="http://controller" rel="nofollow noreferrer">http://controller</a>:35357/v2.0<br>nova_region_name = regionOne<br>nova_admin_username = nova<br>nova_admin_tenant_id = SERVICE_TENANT_ID<br>nova_admin_password = NOVA_PASS</pre>
NEUTRON_PASS为创建neutron用户时使用的密码。SERVICE_TENANT_ID为认证服务中service租户的ID,可以通过以下命令取得:
<pre>$ source admin-openrc.sh

$ keystone tenant-get service
PropertyValue
descriptionService Tenant
enabledTrue
id5ab4d5c513f543cfbf8e3be97f5df5fb
nameservice

+-------------+----------------------------------+</pre>

[DEFAULT]部分,开启“详细输出日志”选项:
<pre>[DEFAULT]<br>...<br>verbose = True</pre>

配置 Modular Layer 2(ML2)plug-in

ML2 plug-in使用Open vSwitch(OVS)机制(agent)来创建虚拟网络框架。由于controller节点不处理实例之间的网络通信,故不需要OVS组件。

编辑# vi /etc/neutron/plugins/ml2/ml2_conf.ini文件:

[ml2]部分,启用flat和generic routing encapsulation(GRE)网络类型的驱动( network type drivers),GRE 租户网络和OVS机制的驱动:
<pre>[ml2]<br>...<br>type_drivers = flat,gre<br>tenant_network_types = gre<br>mechanism_drivers = openvswitch</pre>

[ml2_type_gre]部分,配置tunnel ID的范围:
<pre>[ml2_type_gre]<br>...<br>tunnel_id_ranges = 1:1000</pre>

[securitygroup]部分,启用security groups,ipset, and configure,设定OVS iptables firewall driver:
<pre>[securitygroup]<br>...<br>enable_security_group = True<br>enable_ipset = True<br>firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver</pre>

配置计算服务使之使用网络服务

编辑# vi /etc/nova/nova.conf文件:
[DEFAULT]部分,设定API和驱动:
<pre>[DEFAULT]<br>...<br>network_api_class = nova.network.neutronv2.api.API<br>security_group_api = neutron<br>linuxnet_interface_driver = nova.network.linux_net.LinuxOVSInterfaceDriver<br>firewall_driver = nova.virt.firewall.NoopFirewallDriver</pre>

[neutron]部分,设定访问参数:
<pre>[neutron]<br>...<br>url = <a href="http://controller" rel="nofollow noreferrer">http://controller</a>:9696<br>auth_strategy = keystone<br>admin_auth_url = <a href="http://controller" rel="nofollow noreferrer">http://controller</a>:35357/v2.0<br>admin_tenant_name = service<br>admin_username = neutron<br>admin_password = NEUTRON_PASS</pre>
NEUTRON_PASS为创建neutron用户时使用的密码。

完成安装

  1. 同步数据库:
    # neutron-db-manage --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugins/ml2/ml2_conf.ini upgrade juno
  2. 重启计算服务:
    # service nova-api restart
    # service nova-scheduler restart
    # service nova-conductor restart
  3. 重启网络服务:
    # service neutron-server restart

验证操作

  1. 启动admin证书:
    $ source admin-openrc.sh
  2. 显示装载的扩展列表,验证neutron-server进程已成功启动:
    <pre>$ neutron ext-list
aliasname
security-groupsecurity-group
l3_agent_schedulerL3 Agent Scheduler
ext-gw-modeNeutron L3 Configurable external gateway mode
bindingPort Binding
providerProvider Network
agentagent
quotasQuota management support
dhcp_agent_schedulerDHCP Agent Scheduler
l3-haHA Router extension
multi-providerMulti Provider Network
external-netNeutron external network
routerNeutron L3 Router
allowed-address-pairsAllowed Address Pairs
extrarouteNeutron Extra Route
extra_dhcp_optNeutron Extra DHCP opts
dvrDistributed Virtual Router

+-----------------------+-----------------------------------------------+</pre>

安装时出现的问题及解决方法

输入neutron ext-list后,出现“Unable to establish connection to http://controller:9696/v2.0/extensions.json”,最后发现是之前某个service在keystone里创立时设置的密码与配置neutron时需写入的没对上,导致无法访问。

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