maven package docker:build - connection refused

Question

I am trying to directly build a docker image with maven with mvn package docker:build.

Docker is running and docker ps shows me my containers,

Answer 1

i solve the problem using this setting:

<configuration>
	<imageName>10.10.8.175:5000/${artifactId}:${project.version}</imageName>
	<dockerHost>https://192.168.99.100:2376</dockerHost>
	<dockerCertPath>C:\Users\AtomView\.docker\machine\machines\default</dockerCertPath>
	<dockerDirectory>src/main/resources/docker</dockerDirectory>
	<resources>
		<resource>
			<targetPath>/</targetPath>
			<directory>${project.build.directory}</directory>
			<include>*.zip</include>
		</resource>
	</resources>
</configuration>

Answer 2

On Windows with Docker/Hyper-V this occurred to me with com.spotify:docker-maven-plugin:1.0.0. There is a discussion about this on another forum, where they advise to turn on

in docker Settings/General Tab. It worked for me.

Answer 3

On windows 7 64 the docker env seems a bit tricky to install as it requires a linuxVM to run (update issues with previous vbox installation) https://github.com/docker/machine/issues/3396 )

Luckily in the docker quickstart terminal we can do:

   $ docker-machine.exe env
   export DOCKER_TLS_VERIFY="1"
   export DOCKER_HOST="tcp://192.168.99.101:2376"
   export DOCKER_CERT_PATH="C:\Users\uv\.docker\machine\machines\default"
   export DOCKER_MACHINE_NAME="default"
   # Run this command to configure your shell:
   # eval $("C:\Program Files\Docker Toolbox\docker-machine.exe" env)

showing us what to put into the plugin configuration

   <dockerHost>https://192.168.99.101:2376</dockerHost>

but only after using the advice found here:

Docker: An error occurred trying to connect

with the important part being:

Run FOR /f "tokens=*" %i IN ('docker-machine env --shell cmd default') DO %i

we can run the mvnw docker:build successfully in the cmd/intellij terminal :)

Answer 4

On MacOs, I just set the environment variables as shown by

docker-machine env

When running the build from an IDE, make sure these variables are properly set.

Answer 5

update maven docker plugin to latest version 1.2.0. This solves the problem.

Answer 6

Below change fixed my issue on OSX El Capitan, Docker Version 1.12.1 (build: 12133):

export DOCKER_HOST=unix:///var/run/docker.sock

Please restart docker if mvn package docker:build still fails.