我有一个通过libvirt（CentOS 7）configuration的LXC OS容器（CentOS 7）：
<domain type='lxc'> <name>lxc-test1.example.com</name> <uuid>5a715193-55ef-49d7-a4f6-ac5c27bce838</uuid> <memory unit='KiB'>2097152</memory> <currentMemory unit='KiB'>2097152</currentMemory> <vcpu placement='static'>4</vcpu> <os> <type arch='x86_64'>exe</type> <init>/sbin/init</init> </os> <features> <privnet/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/libexec/libvirt_lxc</emulator> <filesystem type='mount' accessmode='passthrough'> <source dir='/var/lib/libvirt/filesystems/lxc-test1.example.com'/> <target dir='/'/> </filesystem> <interface type='bridge'> <mac address='00:16:3e:c3:6c:78'/> <source bridge='br_v123'/> </interface> <console type='pty'> <target type='lxc' port='0'/> </console> </devices> </domain> 当容器启动时，它不会按照其在本地/etc/sysconfig/network-scripts/ifcfg-eth0定义的那样正确设置其networking
TYPE=Ethernet BOOTPROTO=none DEFROUTE=yes NAME=eth0 DEVICE=eth0 ONBOOT=yes IPADDR=10.2.0.1 PREFIX=24 GATEWAY=10.2.0.254 DNS1=10.0.0.18 DNS2=10.0.0.19
但是，如果我在容器中ifdown eth0 && ifup eth0它获得所需的configuration。
# ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 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 valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 34: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:16:3e:c3:6c:78 brd ff:ff:ff:ff:ff:ff inet6 fe80::216:3eff:fec3:6c78/64 scope link valid_lft forever preferred_lft forever # ifdown eth0 && ifup eth0 Device 'eth0' successfully disconnected. Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1) # ip addr 34: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:16:3e:c3:6c:78 brd ff:ff:ff:ff:ff:ff inet 10.2.0.1/24 brd 10.47.34.255 scope global eth0 valid_lft forever preferred_lft forever inet6 fe80::216:3eff:fec3:6c78/64 scope link valid_lft forever preferred_lft forever # ping -c 1 10.0.2.254 PING 10.0.2.254 (10.0.2.254) 56(84) bytes of data. 64 bytes from 10.0.2.254: icmp_seq=1 ttl=255 time=0.453 ms --- 10.0.2.254 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 0.453/0.453/0.453/0.000 ms
如何使libvirt正确启动容器的networking？
systemctl disable NetworkManager systemctl enable network