Docker container and host network VPN

Question

I\'m trying to run docker image on MacOS with VPN turned on (TUN device). Docker container can access internet, but is not able to access resources behind vpn. What is the r

Answer 1

Had a similar problem. OP's solution worked, but so did simply restarting my docker vm:

docker-machine restart $host

Inspiration: https://www.reddit.com/r/docker/comments/39z4xd/when_my_docker_host_is_connected_to_vpn_i_can_no/

Answer 2

Not sure if it's best solution.

I took DNS that appears on my host after connecting to VPN

scutil --dns | grep 'nameserver\[[0-9]*\]'
nameserver[0] : xxx.xxx.xxx.xxx

Modified docker run command:

docker run --cidfile="docker.pid" --dns=xxx.xxx.xxx.xxx --publish-all

Now docker container can access resources behind VPN... It works, but I have no idea if it's good or bad...

Answer 3

I had to restart docker after connecting host machine to VPN.

sudo systemctl restart docker docker start {name-of-container}