Docker build “Could not resolve 'archive.ubuntu.com'” apt-get fails to install anything

Question

I\'ve been trying to run Docker build on various files which previously worked before, which are now no longer working.

As soon as the Docker file included any line

Answer 1

After adding local dns ip to default docker file it started working for me... please find the below steps...

$ nm-tool # (will give you the dns IP)

DNS : 172.168.7.2

$ vim /etc/default/docker # (uncomment the DOCKER_OPTS and add DNS IP)
DOCKER_OPTS="--dns 172.168.7.2 --dns 8.8.8.8 --dns 8.8.4.4"

$ rm `docker ps --no-trunc -aq` # (remove all the containers to avoid DNS cache)

$ docker rmi $(docker images -q) # (remove all the images)

$ service docker restart #(restart the docker to pick up dns setting)

Now go ahead and build the docker... :)