OpenStack Juno版本网络节点gre模式配置

#开启linux的ip转发功能

#nano /etc/sysctl.conf

net.ipv4.ip_forward=1
net.ipv4.conf.all.rp_filter=0
net.ipv4.conf.default.rp_filter=0

$sysctl -p /etc/sysctl.conf

#安装neutron-plugin-ml2，neutron-plugin-openvswitch-agent，neutron-l3-agent，neutron-dhcp-agent

$apt-get install -y neutron-plugin-ml2 neutron-plugin-openvswitch-agent neutron-l3-agent neutron-dhcp-agent

#配置neutron

#nano /etc/neutron/neutron.conf

[DEFAULT]
rpc_backend = rabbit
rabbit_host = <CONTROLLER_NODE_IP>
rabbit_password = <RABBIT_PASSWD>
core_plugin = ml2
service_plugins = router
allow_overlapping_ips = True
auth_strategy = keystone
verbose = True[keystone_authtoken]
...
auth_uri = http://<CONTROLLER_NODE_IP>:5000/v2.0
identity_uri = http://<CONTROLLER_NODE_IP>:35357
admin_tenant_name = service
admin_user = neutron
admin_password = <NEUTRON_PASS>
#注意注释掉含有 auth_host, auth_port, and auth_protocol的选项

#配置ml2插件

#nano /etc/neutron/plugins/ml2/ml2_conf.ini

[ml2]
type_drivers = flat,gre
tenant_network_types = gre
mechanism_drivers = openvswitch[ml2_type_flat]
flat_networks = external[ml2_type_gre]
tunnel_id_ranges = 1:1000[securitygroup]
enable_security_group = True
enable_ipset = True
firewall_driver =neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver[ovs]
#<INSTANCE_TUNNELS_INTERFACE_IP_ADDRESS>是管理段控制节点ip，
#如果没有管理网段，就填控制节点IP
local_ip = <INSTANCE_TUNNELS_INTERFACE_IP_ADDRESS>
enable_tunneling = True
bridge_mappings = external:br-ex[agent]
tunnel_types = gre

#配置3层代理

#nano /etc/neutron/l3_agent.ini

[DEFAULT]
interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
use_namespaces = True
external_network_bridge = br-ex
router_delete_namespaces = True

#配置dhcp代理

#nano /etc/neutron/dhcp_agent.ini

[DEFAULT]
interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver
dhcp_driver = neutron.agent.linux.dhcp.Dnsmasq
use_namespaces = True
dhcp_delete_namespaces = True

#配置元数据代理

#nano /etc/neutron/metadata_agent.ini

[DEFAULT]
auth_url = http://<CONTROLLER_NODE_IP>:5000/v2.0
auth_region = regionOne
admin_tenant_name = service
admin_user = neutron
admin_password = <NEUTRON_PASS>
nova_metadata_ip = <CONTROLLER_NODE_IP>
metadata_proxy_shared_secret = <NEUTRON_PASS>

#配置nova

#nano /etc/nova/nova.conf

service_metadata_proxy = True
metadata_proxy_shared_secret = <NEUTRON_PASS>
#注意与/etc/neutron/metadata_agent.ini中的metadata_proxy_shared_secret配置一样

$ovs-vsctl add-br br-ex #建立一个叫br-ex的网桥

$ovs-vsctl add-port br-ex eth0 #eth0连接到br-ex网桥

#nano /etc/network/interfaces

auto lo
iface lo inet loopback
# The primary network interface
#auto eth0
#iface eth0 inet static
#       address 192.168.1.80
#       netmask 255.255.255.0
#       network 192.168.1.0
#       broadcast 192.168.1.255
#       gateway 192.168.1.254
#       # dns-* options are implemented by the resolvconf package, if instal$
#       dns-nameservers 114.114.114.114
auto eth0
iface eth0 inet manualup ifconfig $IFACE 0.0.0.0 upup ip link set $IFACE promisc ondown ip link set $IFACE promisc offdown ifconfig $IFACE down
auto br-ex
iface br-ex inet staticaddress 192.168.1.80netmask 255.255.255.0network 192.168.1.0broadcast 192.168.1.255gateway 192.168.29.254
#      # dns-* options are implemented by the resolvconf package, if instal$dns-nameservers 114.114.114.114

$ip link set eth0 addr <br-ex MAC_ADDR/HWADDR> #br-ex的mac地址

$ip link set br-ex addr <eth0 MAC_ADDR/HWADDR> #eth0的mac地址

$reboot #重启

# 附带网络重启组件命令

$service neutron-plugin-openvswitch-agent restart
$service neutron-l3-agent restart
$service neutron-dhcp-agent restart
$service neutron-metadata-agent restart

# 验证组件运行情况

$neutron agent-list

注意：<...>为自定义部分

参考：

http://jingyan.baidu.com/article/4d58d5413e95be9dd5e9c06b.html

http://www.aboutyun.com/home.php?mod=space&uid=61&do=blog&id=1749

http://www.chenshake.com/install-openstack-openstack-juno-version/