OpenStack入門篇（二十）之實現阿里雲ESC多FLAT網絡

• 1.給兩台虛擬機增加網卡，使用僅主機模式，網段為：192.168.57.0/24

• 2.修改兩台主機網卡配置

[root@linux-node1 ~]# cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth1
[root@linux-node1 ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth1
TYPE=Ethernet
BOOTPROTO=static
NAME=eth1
DEVICE=eth1
ONBOOT=yes
IPADDR=192.168.57.11
NETMASK=255.255.255.0
[root@linux-node1 ~]# systemctl restart network

[root@linux-node2 ~]# cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth1
[root@linux-node2 ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth1
TYPE=Ethernet
BOOTPROTO=static
NAME=eth1
DEVICE=eth1
ONBOOT=yes
IPADDR=192.168.57.12
NETMASK=255.255.255.0
[root@linux-node2 ~]# systemctl restart network

• 3.修改橋接網絡配置

[root@linux-node1 ~]# vim /etc/neutron/plugins/ml2/linuxbridge_agent.ini
physical_interface_mappings = public:eth0,internal:eth1
public:公網   internal:私網
[root@linux-node1 ~]# source admin-openstack
[root@linux-node1 ~]# openstack endpoint list

• 4.修改ml2的配置

[root@linux-node1 ~]# vim /etc/neutron/plugins/ml2/ml2_conf.ini
flat_network：單一扁平網絡
flat_network = public,internal
[root@linux-node1 ~]# systemctl restart neutron-server
[root@linux-node1 ~]# systemctl restart neutron-linuxbridge-agent

• 5.計算節點：linux-node2一樣配置/etc/neutron/plugins/ml2/linuxbridge_agent.ini

physical_interface_mappings = public:eth0,internal:eth1
[root@linux-node2 ~]# systemctl restart neutron-linuxbridge-agent

• 6.創建網絡

[root@linux-node1 ~]# source admin-openstack
[root@linux-node1 ~]# openstack network create --share \
    --provider-physical-network internal \
    --provider-network-type flat internal  <--網絡名稱

[root@linux-node1 ~]# openstack subnet create --network internal \
    --allocation-pool start=192.168.57.100,end=192.168.57.200
    --dns-nameserver 192.168.56.2 --gateway 192.168.57.2 \
    --subnet-range 192.168.57.0/24 internal-subnet

• 7.dashboard查看並創建雲主機

在創建雲主機時即可選擇網絡，如圖：

 

實現阿里雲的FLAT網絡（經典網絡）一個公網ip，一個私網ip，如圖：

VNC查看：