What is happening when docker-maven plugin tries to build image?

Question

I am running Jenkins in a docker container and Jenkins tries to run my maven build. As part of the build, the docker maven plugin instructs it to build a docker image.

Answer 1

I was able to solve the problem by combining elements of both upvoted answers.

Set options to use different port in /etc/default/docker.

DOCKER_OPTS="-H tcp://127.0.0.1:4243"

Restart the Docker daemon.

sudo service docker restart

Then build your package.

export DOCKER_HOST=tcp://127.0.0.1:4243
mvn clean package docker:build