Dokcer Swarm - network sandbox join failed: subnet sandbox join failed for "10.0.0.0/24": error creating vxlan interface: file exists

Question

I met this issue when deploying my application on Docker Swarm.

I run docker stack deploy -c /path and get error network sandbox join failed: subnet sandbox join failed for "10.0.0.0/24": error creating vxlan interface: file exists

I searched too many pages in Google but not found any solution.

Answer 1

You can try to the following steps.

1. Check each node for any vx-* interfaces in /sys/class/net

$ ls -l /sys/class/net/ | grep vx

2. Once we have interface id's pull more details

$ udevadm info /sys/class/net/

3. If these interfaces exist we should be able to safely remove them. Replace vx-000000-xxxxx with the interface id from Step 2

$ sudo ip -d link show vx-000000-xxxxx
$ sudo ip link delete vx-000000-xxxxx

etc...

4. Redeploy the service.

Answer 2

If you are on a raspberry pi with Ubuntu 21.10 you may just be missing the necessary libraries. You can install them with:

sudo apt install linux-modules-extra-raspi