How can I configure com.spotify.dockerfile-maven-plugin to run on Docker Toolbox? - maven

Question

I started out using the com.spotify.docker-maven-plugin, but it's wiki on GitHub says to switch to com.spotify.dockerfile-maven-plugin. However in the first plugin I'm able to specify the Docker Host, but I can't figure out how to it with the latter.
My machine runs Windows 7 with Docker toolbox, so there is no Docker Daemon on localhost.
The documentation on the dockerfile-maven-plugin does not seem to explain how to do this.
At first the maven output stated that it was trying to connect to localhost:2375.
I've changed port forwarding in virtual box to forward 127.0.0.1:2375 to 2376 on the docker machine. This did not seem to work.
I've followed these instructions:
set DOCKER_CERT_PATH=%USERPROFILE%\.docker\machine\machines\default
set DOCKER_HOST=tcp://192.168.99.100:2376
set DOCKER_MACHINE_NAME=default
set DOCKER_TLS_VERIFY=1
I've set DOCKER_HOST environment variable and checked my docker machine output:
$ docker-machine.exe ls
NAME ACTIVE DRIVER STATE URL SWARM DOCKER ERRORS
default * virtualbox Running tcp://192.168.99.100:2376 v17.06.1-ce
This results in the maven output that tries to connect to the docker-machine on 192.168.99.100:2376 and failing when the machine is not running.
This results in a different output when the machine is actually running (which is confirmed by wget, the file is empty):
Caused by: org.apache.http.ProtocolException: The server failed to respond with a valid HTTP response
More output:
[INFO] --- dockerfile-maven-plugin:1.3.4:build (default) # botlek-server ---
[INFO] Building Docker context D:\dev\projects\botleksensing\botleksensing\botlek-server
[INFO]
[INFO] Image will be built as prorail/botlek-server:latest
[INFO]
[WARNING] An attempt failed, will retry 1 more times
org.apache.maven.plugin.MojoExecutionException: Could not build image
at com.spotify.plugin.dockerfile.BuildMojo.buildImage(BuildMojo.java:184)
at com.spotify.plugin.dockerfile.BuildMojo.execute(BuildMojo.java:105)
at com.spotify.plugin.dockerfile.AbstractDockerMojo.tryExecute(AbstractDockerMojo.java:227)
at com.spotify.plugin.dockerfile.AbstractDockerMojo.execute(AbstractDockerMojo.java:216)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
at org.codehaus.classworlds.Launcher.main(Launcher.java:47)
Caused by: com.spotify.docker.client.exceptions.DockerException: java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: org.apache.http.client.ClientProtocolException
at com.spotify.docker.client.DefaultDockerClient.propagate(DefaultDockerClient.java:2512)
at com.spotify.docker.client.DefaultDockerClient.request(DefaultDockerClient.java:2443)
at com.spotify.docker.client.DefaultDockerClient.version(DefaultDockerClient.java:501)
at com.spotify.docker.client.DefaultDockerClient.authRegistryHeader(DefaultDockerClient.java:2555)
at com.spotify.docker.client.DefaultDockerClient.build(DefaultDockerClient.java:1396)
at com.spotify.docker.client.DefaultDockerClient.build(DefaultDockerClient.java:1365)
at com.spotify.plugin.dockerfile.BuildMojo.buildImage(BuildMojo.java:177)
... 26 more
Caused by: java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: org.apache.http.client.ClientProtocolException
at jersey.repackaged.com.google.common.util.concurrent.AbstractFuture$Sync.getValue(AbstractFuture.java:299)
at jersey.repackaged.com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:286)
at jersey.repackaged.com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:116)
at com.spotify.docker.client.DefaultDockerClient.request(DefaultDockerClient.java:2441)
... 31 more
Caused by: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: org.apache.http.client.ClientProtocolException
at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:481)
at org.glassfish.jersey.apache.connector.ApacheConnector$1.run(ApacheConnector.java:491)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at jersey.repackaged.com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:299)
at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:50)
at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:37)
at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:487)
at org.glassfish.jersey.client.ClientRuntime$2.run(ClientRuntime.java:178)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:340)
at org.glassfish.jersey.client.ClientRuntime$3.run(ClientRuntime.java:210)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.http.client.ClientProtocolException
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:186)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:71)
at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:435)
... 21 more
Caused by: org.apache.http.ProtocolException: The server failed to respond with a valid HTTP response
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:151)
at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57)
at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:259)
at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:163)
at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:167)
at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273)
at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:271)
at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
... 23 more
[INFO] Building Docker context D:\dev\projects\botleksensing\botleksensing\botlek-server
[INFO]
[INFO] Image will be built as prorail/botlek-server:latest
[INFO]
[INFO] ----------------------------------------------------------------- -------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.087 s
[INFO] Finished at: 2017-10-19T14:29:03+02:00
[INFO] Final Memory: 41M/602M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal com.spotify:dockerfile-maven-plugin:1.3.4:build (default) on project botlek-server: Could not build image: java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: org.apache.http.client.ClientProtocolException: The server failed to respond with a valid HTTP response -> [Help 1]
[ERROR]

Answer 1

I fixed the problem by removing the toolbox completely and installing the latest version (I'm on v17.07.0-ce now, I believe I was v17.05.0-ce before).
I also kept the environment variables described in the question (e.g. DOCKER_HOST=192.168.99.100:2376).
Note I ran into some issues with virtualbox since the Docker Toolbox installation removed the virtualbox.msi which was registered as the source of installation. To work around this I downloaded the installer (here) and used a variation on the following command to extract the msi.
VirtualBox-4.0.4-70112-Win.exe -extract -path c:\temp
I had to rename the .msi file to virtualbox.msi and then I could remove the old version.