部署完openstack后的网络配置(一)
2015-09-28 19:12
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需求分析: 部署完成后openstack,创建出虚拟机以后发现,不能和外网相通,比如rdo默认装完,public网络默认的public网络是vxlan,并且不能创建别的类型
创建自定义public时,让openstack支持所有网络类型
配置float接口
创建bridge br-ex
通过ovs-vsctl show命令查看,若存在就不需要创建了,只需要修改网卡文件
把bridge和网卡绑定
查看
public网络类型的选择
创建自定义public时,让openstack支持所有网络类型
vi /etc/neutron/plugins/ml2/ml2_conf.ini(编辑此文件) type_drivers = local,flat,vlan,gre,vxlan openstack-service restart neutron
新创建的虚拟机不能访问外网
新开的虚拟机不能访问外网,通过以下顺序进行排查1、查看br-ex
ovs-vsctl show 17ce5502-609e-4024-8ede-96dafcb63fa4 Bridge br-ex Port br-ex Interface br-ex type: internal Bridge br-tun fail_mode: secure Port patch-int Interface patch-int type: patch options: {peer=patch-tun} Port br-tun Interface br-tun type: internal Bridge br-int fail_mode: secure Port br-int Interface br-int type: internal Port patch-tun Interface patch-tun type: patch options: {peer=patch-int} ovs_version: "2.3.1"
2、若没有br-ex,则创建br-ex
配置br-ex文件cd /etc/sysconfig/network-scripts/ cp -rp ifcfg-eno1 ifcfg-br-ex cat > ifcfg-br-ex << OFF > DEVICE="br-ex" > ONBOOT=yes > IPADDR=192.168.11.105 > PREFIX=24 > GATEWAY=192.168.11.1 > OFF
配置float接口
cp -rp ifcfg-eno2 ifcfg-eno2.bak cat ifcfg-eno1 TYPE=Ethernet BOOTPROTO=none NAME=eno2 UUID=fe424bda-50eb-4861-aa6f-d0ebe40250e1 DEVICE=eno2 ONBOOT=yes
创建bridge br-ex
通过ovs-vsctl show命令查看,若存在就不需要创建了,只需要修改网卡文件
ovs-vsctl add-br br-ex
把bridge和网卡绑定
ovs-vsctl add-port br-ex eno2 service network restart openstack-service restart neutron
查看
ovs-vsctl show 17ce5502-609e-4024-8ede-96dafcb63fa4 Bridge br-ex Port "eno2" Interface "eno2" Port br-ex Interface br-ex type: internal Bridge br-int fail_mode: secure Port br-int Interface br-int type: internal Port patch-tun Interface patch-tun type: patch options: {peer=patch-int} Bridge br-tun fail_mode: secure Port br-tun Interface br-tun type: internal Port patch-int Interface patch-int type: patch options: {peer=patch-tun} ovs_version: "2.3.1" ifconfig br-ex: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.11.105 netmask 255.255.255.0 broadcast 192.168.11.255 inet6 fe80::cc5c:b4ff:fe06:ec4c prefixlen 64 scopeid 0x20<link> ether 00:22:19:59:7f:b8 txqueuelen 0 (Ethernet) RX packets 267 bytes 24637 (24.0 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 143 bytes 19623 (19.1 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.10.105 netmask 255.255.255.0 broadcast 192.168.10.255 inet6 fe80::222:19ff:fe59:7fb6 prefixlen 64 scopeid 0x20<link> ether 00:22:19:59:7f:b6 txqueuelen 1000 (Ethernet) RX packets 5280 bytes 6470921 (6.1 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 2491 bytes 176145 (172.0 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eno2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.11.105 netmask 255.255.255.0 broadcast 192.168.11.255 inet6 fe80::222:19ff:fe59:7fb8 prefixlen 64 scopeid 0x20<link> ether 00:22:19:59:7f:b8 txqueuelen 1000 (Ethernet) RX packets 296566 bytes 417062174 (397.7 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 178659 bytes 15328783 (14.6 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 inet6 ::1 prefixlen 128 scopeid 0x10<host> loop txqueuelen 0 (Local Loopback) RX packets 393058 bytes 46812073 (44.6 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 393058 bytes 46812073 (44.6 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
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