How to inspect a container's IP, obtain it and add it to /etc/hosts file with a local domain name resolution

Question

I am working on Linux Ubuntu with docker containers and I want the following added to the last line of /etc/hosts in a new line:

IP_from_docker_container hostname_as

Answer 1

>> appends to a file, so you can try this:

echo `docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' CONT_NAME` example.com >> /etc/hosts