neutron实现阿里云ecs网络
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一、neutron实现阿里云ecs网络
（1）环境准备
IP地址 主机名 操作系统 192.168.56.11 linux-node1 CentOS7 192.168.56.12 linux-node2 CentOS7
其中，linux-node1当作控制节点
linux-node2当作计算节点
（2）添加双网卡
阿里云主机，两个网卡，一个外网，一个内网网卡。
所以我们模拟阿里云云主机，需要添加在原有基础上再添加一块网卡。
打开wmware workstation，点“编辑”--“虚拟网络编辑器”，打开后，编辑VMnet1，类型选择仅主机，子网地址选择192.168.57.0，同时将“使用本地DHCP服务将IP地址分配给虚拟机”取消掉，单击确定按钮。
接下来为控制节点和计算节点添加网卡 选择linux-node1,“设置”--“网络适配器”，下一步添加网络连接，选择自定义特定虚拟网络--“VMnet1（仅主机模式）”，点击“完成”--“确定”
用同样的方式为linux-node2添加网卡。
（3）在虚拟机上添加网卡
[[email protected] ~]# cd /etc/sysconfig/network-scripts/ [[email protected] network-scripts]# cp ifcfg-eth0 ifcfg-eth1 [[email protected] network-scripts]# cat ifcfg-eth1 TYPE=Ethernet BOOTPROTO=static DEFROUTE=yes PEERDNS=yes PEERROUTES=yes IPV4_FAILURE_FATAL=no IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes IPV6_PEERDNS=yes IPV6_PEERROUTES=yes IPV6_FAILURE_FATAL=no NAME=eth1 DEVICE=eth1 ONBOOT=yes IPADDR0=192.168.57.11 PREFIX0=24
启动并查看eth1
[[email protected] network-scripts]# ifup eth1 [[email protected] network-scripts]# ifconfig eth0: flags=4163mtu 1500 inet 192.168.56.11 netmask 255.255.255.0 broadcast 192.168.56.255 inet6 fe80::20c:29ff:fe4c:a40b prefixlen 64 scopeid 0x20 ether 00:0c:29:4c:a4:0b txqueuelen 1000 (Ethernet) RX packets 14383 bytes 3982904 (3.7 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 13871 bytes 9990604 (9.5 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eth1: flags=4163mtu 1500 inet 192.168.57.11 netmask 255.255.255.0 broadcast 192.168.57.255 inet6 fe80::20c:29ff:fe4c:a415 prefixlen 64 scopeid 0x20 ether 00:0c:29:4c:a4:15 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 12 bytes 888 (888.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10loop txqueuelen 0 (Local Loopback) RX packets 74878 bytes 29270386 (27.9 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 74878 bytes 29270386 (27.9 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 tap50360466-68: flags=4163mtu 1500 ether 7e:24:2c:64:4f:0b txqueuelen 1000 (Ethernet) RX packets 8 bytes 648 (648.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 0 bytes 0 (0.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
使用同样的方法配置linux-node2
（4）修改ml2和linuxbridge的配置文件
在控制节点上修改linuxbridge_agent.ini
[[email protected] network-scripts]# vim /etc/neutron/plugins/ml2/linuxbridge_agent.ini physical_interface_mappings = public:eth0,internet:eth1 查看配置 [[email protected] network-scripts]# grep ‘^[a-Z]‘ /etc/neutron/plugins/ml2/linuxbridge_agent.ini physical_interface_mappings = public:eth0,internet:eth1 firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver enable_security_group = true enable_vxlan = false
修改ml2_conf.ini
[[email protected] network-scripts]# vim /etc/neutron/plugins/ml2/ml2_conf.ini flat_networks = public,internet 查看配置 [[email protected] network-scripts]# grep ‘^[a-Z]‘ /etc/neutron/plugins/ml2/ml2_conf.ini type_drivers = flat,vlan,vxlan,gre,geneve tenant_network_types = mechanism_drivers = linuxbridge,openvswitch extension_drivers = port_security flat_networks = public,internet enable_ipset = true [[email protected] netwo
重启linuxbridge
[[email protected] network-scripts]# systemctl restart neutron-linuxbridge-agent
在计算节点上配置linuxbridger_agent.ini
[[email protected] ~]# grep ‘^[a-Z]‘ /etc/neutron/plugins/ml2/linuxbridge_agent.ini physical_interface_mappings = public:eth0,internet:eth1 firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver enable_security_group = True enable_vxlan = True
重启linuxbridge
[[email protected] network-scripts]# systemctl restart neutron-linuxbridge-agent
在控制节点上重启neutron-server
[[email protected] network-scripts]# systemctl restart neutron-server
（5）创建虚拟网络
先执行一下环境变量
[[email protected] ~]# source admin-openstack.sh
创建internet网络
[[email protected] ~]# neutron net-create --shared --provider:physical_network internet --provider:network_type flat internet-net Created a new network: +---------------------------+--------------------------------------+ | Field | Value | +---------------------------+--------------------------------------+ | admin_state_up | True | | availability_zone_hints | | | availability_zones | | | created_at | 2016-11-16T13:51:07 | | description | | | id | 00c9b5e2-f29e-4afd-a7e2-f9c47a457644 | | ipv4_address_scope | | | ipv6_address_scope | | | mtu | 1500 | | name | internet-net | | port_security_enabled | True | | provider:network_type | flat | | provider:physical_network | internet | | provider:segmentation_id | | | router:external | False | | shared | True | | status | ACTIVE | | subnets | | | tags | | | tenant_id | 53f72af1420a4d098d48f2c82d7e9ec7 | | updated_at | 2016-11-16T13:51:07 | +---------------------------+--------------------------------------+
创建子网
[[email protected] ~]# neutron subnet-create --name internet-subnet > --allocation-pool start=192.168.57.100,end=192.168.57.200 > --dns-nameserver 223.5.5.5 internet-net 192.168.57.0/24 Created a new subnet: +-------------------+------------------------------------------------------+ | Field | Value | +-------------------+------------------------------------------------------+ | allocation_pools | {"start": "192.168.57.100", "end": "192.168.57.200"} | | cidr | 192.168.57.0/24 | | created_at | 2016-11-16T14:03:27 | | description | | | dns_nameservers | 223.5.5.5 | | enable_dhcp | True | | gateway_ip | 192.168.57.1 | | host_routes | | | id | 92311aff-245c-4663-aa93-a8b2e2b780a1 | | ip_version | 4 | | ipv6_address_mode | | | ipv6_ra_mode | | | name | internet-subnet | | network_id | 00c9b5e2-f29e-4afd-a7e2-f9c47a457644 | | subnetpool_id | | | tenant_id | 53f72af1420a4d098d48f2c82d7e9ec7 | | updated_at | 2016-11-16T14:03:27 | +-------------------+------------------------------------------------------+
查看一下刚才创建的网络
[[email protected] ~]# neutron net-list +--------------------------------------+--------------+------------------------------------------------------+ | id | name | subnets | +--------------------------------------+--------------+------------------------------------------------------+ | 2cbfb54c-b760-41e1-ba69-83131220463b | public-net | 80f2d649-7882-4625-9f07-03ad96e5be9a 192.168.57.0/24 | | | | | 00c9b5e2-f29e-4afd-a7e2-f9c47a457644 | internet-net | 92311aff-245c-4663-aa93-a8b2e2b780a1 192.168.57.0/24 | +--------------------------------------+--------------+------------------------------------------------------+
二、创建虚拟机
接下来就可以登录到192.168.56.11/dashboard，创建云主机了
用户名：demo
密码：demo
登录进去后，在页面左侧选择云主机，进入云主机管理页面，单击“创建云主机”，就可以开始创建主机了
输入实例名称，即主机名
选择引导源，这里我选择了一个小镜像，便于测试
选择套餐，即给云主机配置cpu、磁盘和内存的大小
选择网络，添加双网卡
选择安全组
选择密码对，用于后面登录云主机
配置完成后，点击启动实例，就开始创建云主机了。
创建完成后，可以在云主机列表中查看云主机。
点击控制台，可以通过web界面登陆云主机。
查看网络配置，可以看到网络配置成功，能连接外网
查看网络拓扑
综上，我们可以利用openstack neutron创建阿里云ecs网络
本文出自 “JackyWang” 博客，请务必保留此出处http://jackyxin.blog.51cto.com/1976631/1873761
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