I have containers setup with macvlan [1] networking. This generally
works well, but it would be nice in a few edge cases to be able to
create an additional veth bridge from inside the container. However,
this does not work:
# brctl addbr bridge0
add bridge failed: Operation not permitted
I believe the specific errno is ENOTSUPP 524. I've tried granting
extra capabilities (including SYS_ADMIN) without success. It it
possible to create veth bridges inside a container on top of macvlan
bridges?
[1]
lxc.network.type = macvlan
lxc.network.macvlan.mode = bridge
lxc.network.flags = up
lxc.network.link = br0
lxc.network.name = eth0
lxc.network.hwaddr = 06:00:b2:80:7d:ab
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