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

This can be resolved by adding DOCKER_HOST environment variable in Jenkins.

Setup your docker daemon like this:

[/etc/sysconfig/docker]
OPTIONS="-H tcp://127.0.0.1:4243"

Jenkins Jobs (Inject environment variables):

DOCKER_HOST=tcp://127.0.0.1:4243