a work for lxc monitor network interface
Libo Chen
clbchenlibo.chen at huawei.com
Wed Dec 18 08:36:11 UTC 2013
Hello LXC experts,
lxc tool can set network interface by config, but it is static.
In some scene, the network interface will be dynamic created on the host
and need be shared to container, but it is not suitable to do by hand,
so lxc can not work for it.
I also know lxc_user_nic() can only do a part of work, but we have
two more work:
1. grasp the netlink/uevent message about network interface online
2. config interface attached to container ip address .
so it can not fully meet my requirements.
I want there is a monitor can work for network interface hotplug.
1. read config form config file, it describe monitor which network interface
and what's the network configuration
2. grasp the netlink/uevent message about network interface online on the host
3. create veth pair, put veth attach to container and bridge
4. config the veth attached to container ipaddr
netlink create veth pair
monitor ---> read config -------> veth0 attach to container --> config ipaddr
veth1 attach to bridge
monitor may be the lxc-start or a child forked by lxc-start.
Is this reasonable? If so, I'd like to do it.
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