Still confused about how to actually use this to build an image

[davidmichaelkarr]

It still feels like there are many missing pieces in this doc. The doc for "dockerPrepare" says barely anything. I can't tell exactly what it's supposed to be doing. I can sort of see the result, but it's missing the files I added, so the final Docker build fails. I'm sure I'm just missing some details that are probably assumptions that I'm not aware of.

My application is a multiproject build, with two WAR projects along with the subproject to build the image. The image subproject depends on the two projects, and a JDBC jar, all three of which I try to add to the context so the Dockerfile can reference them.

The following is the entire build.gradle for the image project:
plugins { id 'com.palantir.docker' version '0.9.0' } apply plugin: 'java' List<String> fileList = ["ordersService.war", "ordersGUI.war", "ojbdc6.jar"].each { "$buildDir/dependencies/" + it } docker { name 'ssorderprocessingdashboard' dockerfile 'src/docker/Dockerfile' files fileList.toArray() } dependencies { runtime project(":ordersService") runtime project(":ordersGUI") runtime "oracle:ojdbc6:11.2.0.3" } task copyDependencies << { configurations.runtime.setTransitive(false).resolvedConfiguration.resolvedArtifacts .each { artifact -> project.copy { from artifact.file into "${buildDir}/dependencies" rename { "${artifact.name}.${artifact.extension}" } } } } build.dependsOn copyDependencies

I haven't yet set task dependencies so the "docker" task will run on build (as that didn't even work, but I'll address that later). For now, I just run the "build" task on the subproject and then the "docker" task on a separate command line.

I verified that after "build", the "${buildDir}/dependencies" dir has my three artifacts properly named.

If it helps, this is my entire Dockerfile:
`FROM tomee:8-jdk-7.0.0-webprofile

ENV SERVICE_HOST_PORT = localhost:8080
ENV DB_HOST = xx
ENV DB_PORT xx
ENV DB_SID xx
ENV DB_USER xx
ENV DB_PASSWORD xx
ENV TOMEE_HOME /usr/local/tomee
ENV env dev

ARG tzoffset

ADD ojdbc6.jar ${TOMEE_HOME}/lib

ADD ordersService.war ${TOMEE_HOME}/webapps/
ADD ordersGUI.war ${TOMEE_HOME}/webapps/

Disable CXF in cxf.properties and cxf-rs.properties.

ADD cxf.properties ${TOMEE_HOME}/conf
ADD cxf-rs.properties ${TOMEE_HOME}/conf

Change host:port that GUI is using to reach the REST service.

If SERVICE_HOST_PORT is set, use that, otherwise use

localhost:8080.

Add DataSource definition to tomee.xml.

ADD tomee.xml.excerpt ${TOMEE_HOME}
ADD system.properties.excerpt ${TOMEE_HOME}
ADD adjustTomEEConfig.sh ${TOMEE_HOME}

Install gettext for envsubst.

ADD aptconf.txt /etc/apt/apt.conf
RUN apt-get update
RUN apt-get install -y gettext

CMD ${TOMEE_HOME}/adjustTomEEConfig.sh $tzoffset; ${TOMEE_HOME}/bin/catalina.sh run`

When I run the "docker" task, this is what I see:
`:ordersImage:dockerClean
:ordersImage:dockerPrepare
:ordersImage:docker
Sending build context to Docker daemon 751 MB
Step 1 : FROM tomee:8-jdk-7.0.0-webprofile
---> 5a2d656682a9
...
Step 11 : ADD ojdbc6.jar ${TOMEE_HOME}/lib
lstat ojdbc6.jar: no such file or directory
:ordersImage:docker FAILED

FAILURE: Build failed with an exception.`

I am just guessing that "${buildDir}/docker" is what "dockerPrepare" produces. The doc doesn't say, and it doesn't say anything about how I can control that, but I think it's a reasonable guess that's what it produces. This directory does not include the "build" directory, or "build/dependencies", which is where the files are stored. I explicitly said to include the files from that directory, so I would assume that "dockerPrepare" would respect that.

I could use some help here.