RDO Packstack 安装Openstack Icehouse CentOS 6.5 双网卡

http://jasonyu37.blog.51cto.com/8877469/1536589

上一篇,有一个问题,那就是,如果我想给外网提供服务(把External Network 和 Management Network分开), 怎么做?这个应该是很实用的。但是我是个穷人,没有两块网卡。

然后我就去看了vmware的workstation 网络相关的,有一个VMnet1(192.168.179.0/24),是hostonly模式。在VM上添加一个网卡,选择自定义模式(VMNet1),这样相当于在主机上插了一块网卡,eth2出来了,设置IP,192.168.179.20,笔记本上ping,通了。


其他地方就和上一篇差不多了,就是br-ex桥接到eth2就行了,

#传说中的management network

#cat ifcfg-eth1

TYPE=Ethernet

IPV6INIT=no

NAME=eth1

UUID=0e6e86b5-721d-4219-a9fd-2076990f9e1f

ONBOOT=yes

HWADDR=00:0C:29:39:36:53

BOOTPROTO=none

IPADDR=192.168.1.20

PREFIX=24

GATEWAY=192.168.1.1

DNS1=202.106.0.20

DEFROUTE=yes

IPV4_FAILURE_FATAL=yes

LAST_CONNECT=1401649435


#传说中的external network

# cat ifcfg-eth2

HWADDR=00:0C:29:39:36:5D

DEVICE=eth2

TYPE=OVSPort

DEVICETYPE=ovs

OVS_BRIDGE=br-ex

ONBOOT=yes

# BOOTPROTO=none

# IPADDR=192.168.179.20

# PREFIX=24

# GATEWAY=192.168.179.1

# DNS1=202.106.0.20

# DEFROUTE=yes

# IPV4_FAILURE_FATAL=yes

# IPV6INIT=no

#  NAME=eth2

# UUID=dd6c8917-b2ac-40a8-ad29-ad165df9e2a6

# ONBOOT=yes

LAST_CONNECT=1407354181


#cat ifcfg-br-ex

DEVICE=br-ex

DEVICETYPE=ovs

TYPE=OVSBridge

BOOTPROTO=static

IPADDR=192.168.179.20

NETMASK=255.255.255.0

ONBOOT=yes


登录到dashboard.

 

1, 添加外部网络(就是VMNet1网络) External_Network

      添加 External_Subnet 192.168.179.0/24

2, 添加私有网络(就是VM所使用的网络) Private_Network

      添加Private_Subnet 172.16.1.0/24

3, 添加路由器,router, 设置网关gateway为外部网络External_Subnet.

    在路由器router上, 添加 172.16.1.0/24 子网的接口

4, 启动实例, 选择 Private_Subnet.

5,设置 floating IP. (192.168.179.101)

6,设置安全规则,允许icmp和ssh对内部网络的访问.


# ip netns exec qrouter-9bd86521-4685-4af8-9264-176fae5e2a5c ip addr

19: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 

    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

    inet 127.0.0.1/8 scope host lo

    inet6 ::1/128 scope host 

       valid_lft forever preferred_lft forever

20: qg-3f586ddc-60: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 

    link/ether fa:16:3e:e0:66:3f brd ff:ff:ff:ff:ff:ff

    inet 192.168.179.100/24 brd 192.168.179.255 scope global qg-3f586ddc-60

    inet 192.168.179.101/32 brd 192.168.179.101 scope global qg-3f586ddc-60

    inet6 fe80::f816:3eff:fee0:663f/64 scope link 

       valid_lft forever preferred_lft forever

21: qr-575f4992-4c: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 

    link/ether fa:16:3e:79:e2:b0 brd ff:ff:ff:ff:ff:ff

    inet 172.16.1.1/24 brd 172.16.1.255 scope global qr-575f4992-4c

    inet6 fe80::f816:3eff:fe79:e2b0/64 scope link 

       valid_lft forever preferred_lft forever


# ip netns exec qrouter-9bd86521-4685-4af8-9264-176fae5e2a5c iptables -t nat -S

-P PREROUTING ACCEPT

-P POSTROUTING ACCEPT

-P OUTPUT ACCEPT

-N neutron-l3-agent-OUTPUT

-N neutron-l3-agent-POSTROUTING

-N neutron-l3-agent-PREROUTING

-N neutron-l3-agent-float-snat

-N neutron-l3-agent-snat

-N neutron-postrouting-bottom

-A PREROUTING -j neutron-l3-agent-PREROUTING 

-A POSTROUTING -j neutron-l3-agent-POSTROUTING 

-A POSTROUTING -j neutron-postrouting-bottom 

-A OUTPUT -j neutron-l3-agent-OUTPUT 

-A neutron-l3-agent-OUTPUT -d 192.168.179.101/32 -j DNAT --to-destination 172.16.1.2 

-A neutron-l3-agent-POSTROUTING ! -i qg-3f586ddc-60 ! -o qg-3f586ddc-60 -m conntrack ! --ctstate DNAT -j ACCEPT 

-A neutron-l3-agent-PREROUTING -d 169.254.169.254/32 -p tcp -m tcp --dport 80 -j REDIRECT --to-ports 9697 

-A neutron-l3-agent-PREROUTING -d 192.168.179.101/32 -j DNAT --to-destination 172.16.1.2 

-A neutron-l3-agent-float-snat -s 172.16.1.2/32 -j SNAT --to-source 192.168.179.101 

-A neutron-l3-agent-snat -j neutron-l3-agent-float-snat 

-A neutron-l3-agent-snat -s 172.16.1.0/24 -j SNAT --to-source 192.168.179.100 

-A neutron-postrouting-bottom -j neutron-l3-agent-snat 


上个图吧:

wKiom1PiJsqzTv9HAAEd4skDSUE355.jpg

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