How to get the IP address of the docker host from inside a docker container

Question

As the title says. I need to be able to retrieve the IP address the docker hosts and the portmaps from the host to the container, and doing that inside of the container.

Answer 1

I have Ubuntu 16.03. For me

docker run --add-host dockerhost:`/sbin/ip route|awk '/default/ { print  $3}'` [image]

does NOT work (wrong ip was generating)

My working solution was that:

docker run --add-host dockerhost:`docker network inspect --format='{{range .IPAM.Config}}{{.Gateway}}{{end}}' bridge` [image]