If the webservice does not have a correct quay.io token, we should see something like the following
$ java -jar target/write-api-client-0.1-alpha.0-SNAPSHOT-shaded.jar --config ~/.dockstore/write_api_client.properties add --Dockerfile Dockerfile --cwl-file Dockstore.cwl
14:18:07.065 [main] INFO io.dockstore.client.cli.Add - Handling add...
14:18:09.598 [main] INFO io.dockstore.client.cli.Add - Created repository on git.
14:18:11.814 [main] INFO io.dockstore.client.cli.Add - Created branch, tag, and release on git.
14:18:17.039 [main] ERROR io.dockstore.client.cli.Add - Could not create Dockerfile: {"code":403,"message":"Web service does not have permission to create quay.io repo (ID 0dadbb28c0adc651)."}
$ java -jar target/write-api-client-0.1-alpha.0-SNAPSHOT-shaded.jar --config ~/.dockstore/write_api_client.properties add --Dockerfile Dockerfile --cwl-file Dockstore.cwl
14:18:07.065 [main] INFO io.dockstore.client.cli.Add - Handling add...
14:18:09.598 [main] INFO io.dockstore.client.cli.Add - Created repository on git.
14:18:11.814 [main] INFO io.dockstore.client.cli.Add - Created branch, tag, and release on git.
14:18:17.039 [main] ERROR io.dockstore.client.cli.Add - Could not create Dockerfile: {"code":500,"message":"There was an error processing your request. It has been logged (ID 0dadbb28c0adc651)."}