OpenStack入门篇（二十）之实现阿里云ESC多FLAT网络

1.给两台虚拟机增加网卡，使用仅主机模式，网段为：192.168.57.0/24

2.修改两台主机网卡配置

[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.修改桥接网络配置

[root@linux-node1 ~]# vim /etc/neutron/plugins/ml2/linuxbridge_agent.ini

physical_interface_mappings = public:eth0,internal:eth1

public:公网   internal:私网

[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：单一扁平网络

flat_network = public,internal

[root@linux-node1 ~]# systemctl restart neutron-server

[root@linux-node1 ~]# systemctl restart neutron-linuxbridge-agent

5.计算节点：linux-node2一样配置/etc/neutron/plugins/ml2/linuxbridge_agent.ini

physical_interface_mappings = public:eth0,internal:eth1

[root@linux-node2 ~]# systemctl restart neutron-linuxbridge-agent

6.创建网络

[root@linux-node1 ~]# source admin-openstack

[root@linux-node1 ~]# openstack network create --share \

    --provider-physical-network internal \

    --provider-network-type flat internal  <--网络名称

[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/ internal-subnet