OpenStackstein安装(八)networkoption1-创新互联
安装和配置网络组件在controller节点上
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# yum install openstack-neutron openstack-neutron-ml2 openstack-neutron-linuxbridge ebtables
- 配置服务器组件
网络服务组件配置包括数据,验证机制,消息队列,拓扑改变通知和插件.
Edit the /etc/neutron/neutron.conf file and complete the following actions:
○ In the [database] section, configure database access:
[database]
# ...
connection = mysql+pymysql://neutron:neutron123@dbs.flex.net/neutron
注意:注释或移除其它连接选项在[database]区域中
○ In the [DEFAULT] section, enable the Modular Layer 2 (ML2) plug-in and disable additional plug-ins:
[DEFAULT]
# ...
core_plugin = ml2
service_plugins =
○ In the [DEFAULT] section, configure RabbitMQ message queue access:
[DEFAULT]
# ...
transport_url = rabbit://openstack:openstack123@dbs.flex.net
○ In the [DEFAULT] and [keystone_authtoken] sections, configure Identity service access:
[DEFAULT]
# ...
auth_strategy = keystone
[keystone_authtoken]
# ...
www_authenticate_uri = http://stack.flex.net:5000
auth_url = http://stack.flex.net:5000
memcached_servers = dbs.flex.net:11211
auth_type = password
project_domain_name = default
user_domain_name = default
project_name = service
username = neutron
password = neutron123
注意:注释或移除其它连接选项在[keystone_authtoken]区域中
○ In the [DEFAULT] and [nova] sections, configure Networking to notify Compute of network topology changes:
[DEFAULT]
# ...
notify_nova_on_port_status_changes = true
notify_nova_on_port_data_changes = true
[nova]
auth_url = http://stack.flex.net:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = nova
password = nova123
○ In the [oslo_concurrency] section, configure the lock path:
[oslo_concurrency]
# ...
lock_path = /var/lib/neutron/tmp
- 配置模块Layer 2 (ML2)插件
实列中使用ML2插件,ML2使用Linux bridge机制建立layer-2(桥接和交换)虚拟网络架构。
Edit the /etc/neutron/plugins/ml2/ml2_conf.ini file and complete the following actions:
○ In the [ml2] section, enable flat and VLAN networks:
[ml2]
# ...
type_drivers = flat,vlan
○ In the [ml2] section, disable self-service networks:
[ml2]
# ...
tenant_network_types =
○ In the [ml2] section, enable the Linux bridge mechanism:
[ml2]
# ...
mechanism_drivers = linuxbridge
警告:配置ML2插件后, 从type_drivers移除这个选项会导致数据库不一致.
○ In the [ml2] section, enable the port security extension driver:
[ml2]
# ...
extension_drivers = port_security
○ In the [ml2_type_flat] section, configure the provider virtual network as a flat network:
[ml2_type_flat]
# ...
flat_networks = provider
○ In the [securitygroup] section, enable ipset to increase efficiency of security group rules:
[securitygroup]
# ...
enable_ipset = true
- Configure the Linux bridge agent
The Linux bridge agent builds layer-2 (bridging and switching) virtual networking infrastructure for instances and handles security groups.
Edit the /etc/neutron/plugins/ml2/linuxbridge_agent.ini file and complete the following actions:
○ In the [linux_bridge] section, map the provider virtual network to the provider physical network interface:
[linux_bridge]
physical_interface_mappings = provider:eht1
使用eth2物理网络接口做为租户的网络连接.
○ In the [vxlan] section, disable VXLAN overlay networks:
[vxlan]
enable_vxlan = false
○ In the [securitygroup] section, enable security groups and configure the Linux bridge iptables firewall driver:
[securitygroup]
# ...
enable_security_group = true
firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver
○ Ensure your Linux operating system kernel supports network bridge filters by verifying all the following sysctl values are set to 1:
net.bridge.bridge-nf-call-iptables
net.bridge.bridge-nf-call-ip6tables
# modprobe br_netfilter
# vi /etc/sysctl.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
# sysctl -p
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
为了网络支持桥接, 通常的需要加载br_netfilter内核模块. 但这里可以忽略错误,当你重启neutron时会自动加载.
Configure the DHCP agent
The DHCP agent provides DHCP services for virtual networks. Edit the /etc/neutron/dhcp_agent.ini file and complete the following actions: ○ In the [DEFAULT] section, configure the Linux bridge interface driver, Dnsmasq DHCP driver, and enable isolated metadata so instances on provider networks can access metadata over the network: [DEFAULT] # ... interface_driver = linuxbridge dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq enable_isolated_metadata = true 完成后返回网络配置或继续网络选项2.
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