Linux/Docker/Networking

• List docker container with IPs

docker ps -q | xargs -n 1 docker inspect --format '{{range .NetworkSettings.Networks}}{{.IPAddress}} {{end}} {{ .Name }}' | sed 's/ \// /'

• Create docker network

docker network create wireguard
docker network create --subnet 172.1.50.0/24 wireguard
docker network create --subnet 172.1.50.0/24 --ip-range=172.1.50.0/25 wireguard
docker network inspect wireguard

• add custom route to docker container

docker exec --privileged munin ip route add 192.168.111.0/24 via 172.1.50.127
nsenter -n -t $(docker inspect --format {{.State.Pid}} webproxy) ip route add 192.168.111.0/24 via 172.1.50.127
nsenter -n -t $(docker inspect --format {{.State.Pid}} webproxy) ip route show
nsenter -n -t $(docker inspect --format {{.State.Pid}} webproxy) ping 192.168.111.11

nsenter -n -t $(docker inspect --format {{.State.Pid}} munin) ip route add 192.168.111.0/24 via 172.1.50.127
nsenter -n -t $(docker inspect --format {{.State.Pid}} munin) ip route show
nsenter -n -t $(docker inspect --format {{.State.Pid}} munin) ping 192.168.111.11

ip route show