Docker maven set up -- reading jar files from a remote repo during runtime,

[Saroj]

Hi,

We have a set up as follows:

1. We have a webservice which processes the rules through KIE sessions.

2. KIE spring integration is done so that the sessions are created during server start up.

3. During server start up the application refers a remote repo during runtime from a remote repo not from local m2.[We have achieved this by having the custom settings.xml in the .m2 folder ]

Everything is working fine in my local windows i.e. the jars are downloaded runtime during server start up.

Now the requirement is to run the above set up in a docker.

I have tried to create a docker image with the following written in dockerfile, 

FROM maven:3.3-jdk-8

EXPOSE 8080

ADD settings.xml /root/.m2/settings.xml

But when I start the container the application code tries to get the jar file from default maven repo i.e. 

Unable to resolve artifact: demo:KieSessionFinal:pom:1.0 org.eclipse.aether.resolution.ArtifactResolutionException: Could not find artifact demo:KieSessionFinal:pom:1.0 in central (http://repo1.maven.org/maven2/)

        at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(Defa

ultArtifactResolver.java:444) ~[aether-impl-1.0.0.v20140518.jar:na]

Can anyone please help how do we set up the setting.xml in an dockerized environment so that it can read from the remote repo ?

where and how to place the settings.xml in the docker image or docker container ?

Regards

Saroj

[Michael B]

Hi,


Could you please provide us the whole Dockerfile?
We want to check how you create the docker image?

Have you looked at kie-server-showcase or https://github.com/jboss-dockerfiles/drools/blob/master/kie-server/showcase/Dockerfile ,
this is the dockerfile we use for our docker images.

Regards

Michael

[Saroj]

Here is my dockerfile content.

FROM java:7

RUN apt-get update

RUN apt-get install -y maven

RUN mkdir /usr/local/.m2

ADD settings.xml /usr/local/.m2/settings.xml

FROM tomcat:7-jre7

ADD eds-drools.war /usr/local/tomcat/webapps

ADD slf4j-api-1.7.20.jar /usr/local/tomcat/lib

ADD slf4j-jdk14-1.7.20.jar /usr/local/tomcat/lib

ADD kie-tomcat-integration-6.2.0.Final.jar /usr/local/tomcat/lib

ADD javax.security.jacc-api-1.5.jar /usr/local/tomcat/lib

ADD server.xml /usr/local/tomcat/conf

ADD tomcat-users.xml /usr/local/tomcat/conf

ADD setenv.sh /usr/local/tomcat/bin

CMD ["catalina.sh","run"]

EXPOSE 8090

Regards

Saroj

[Michael B]

Hi,

Have you looked at your .m2 if the right settings.xml is there?
Are you sure you only have one .m2?

There are two locations where a settings.xml file may live:

• The Maven install: ${maven.home}/conf/settings.xml
• A user’s install: ${user.home}/.m2/settings.xml

1) Could you please check if the right settings.xml is copied to the right location
2) Could you please check if the configuration of settings.xml points to the right repositories
3) Could you please check if the settings.xml has the right permissions, since docker copies it?

Michael
 

[Saroj]

Hi Michael,

I figured out the mistake in my dockerfile. 

It was not copying settings.xml because we have written the command like:

ADD settings.xml /root/.m2/settings.xml

Instead I wrote

ADD settings.xml /root/.m2/

and it worked.

Thanks for all your help and time.

Regards

Saroj

[Michael B]

Welcome Saroj!