Challenge/Bug

We are attempting to run our integration tests in separate docker containers to test DbUnit against different database systems. I have created separate Docker images that contain JDK/Maven/DB of choice and this works great for MySQL/PostgreSQL/SQL Server. I am having an issue with the DB2 docker image. I am able to run this image outside of concourse in "standard" Docker with no issues, however, when running inside Concourse I get very strange database issues:

com.ibm.db2.jcc.am.SqlInvalidAuthorizationSpecException: [jcc][t4][2010][11246][4.16.53] Connection authorization failure occurred.  Reason: Local security service non-retryable error. ERRORCODE=-4214, SQLSTATE=28000

Like I mentioned, this only happens with the DB2 docker image running INSIDE Concourse, the same image can be used outside of concourse, provided you install git, do a clone and then execute Maven.

Dockerfile: https://sourceforge.net/p/dbunit/code.git/ci/concourse-ci-testing/tree/ci/docker/db2/Dockerfile
build.yml: https://sourceforge.net/p/dbunit/code.git/ci/concourse-ci-testing/tree/build.yml

• Concourse version: 3.8.0
• Deployment type (BOSH/Docker/binary): Docker and/or Binary (both exhibit the issue)
• Infrastructure/IaaS: In-House Ubuntu 16.04 VM
• Browser (if applicable): N/A
• Did this used to work? Nope