veth interface

[hyavari]

Hi Neira,

When Nomad runs a job for creation of micro VM, it creates a veth interface, but when we stop the job, it doesn't remove that veth.
So, after running some jobs, you would have many veth interfaces on the host machine. It's a bug or we have to do something in the job?

225: vethdc6cd6b7@if6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 02:e2:74:60:24:28 brd ff:ff:ff:ff:ff:ff link-netnsid 1
inet 192.168.127.1/32 scope global vethdc6cd6b7
valid_lft forever preferred_lft forever
inet6 fe80::e2:74ff:fe60:2428/64 scope link
valid_lft forever preferred_lft forever
230: vethc53f5bdf@if6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
link/ether 72:3a:7f:35:a1:e1 brd ff:ff:ff:ff:ff:ff link-netnsid 2
inet 192.168.127.1/32 scope global vethc53f5bdf
valid_lft forever preferred_lft forever
inet6 fe80::703a:7fff:fe35:a1e1/64 scope link
valid_lft forever preferred_lft forever

[cneira]

@hyavari
Thanks for the report,I think is a bug, I'll tag it as such.
I have checked today and is a bug, I'll work on this.

[cneira]

@hyavari
Thanks for the report,I think is a bug, I'll tag it as such.
I have checked today and is a bug, I'll work on this.

@hyavari

This has been fixed in version 1.2 of the driver, you could build that branch and follow the
new instructions on how to setup the firecracker-task-driver, the main difference is now the driver needs it's own cni plugins which you need to compile and copy to /opt/cni/bin as the documentation says.
feel free to reopen if this keeps happening.