Better feedback on error

[ggtools]

I recently had an issue creating an image using the docker-maven-plugin. It was simply that the Dockerfile was not copied to the working directory but it only happened on the CI server. My problem here is that the feedback I got from Maven was not really useful at all:

[INFO] Building image evollis/middle-business:049daf7
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] 
[CUT]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 19.905 s
[INFO] Finished at: 2015-07-31T17:13:45+00:00
[INFO] Final Memory: 91M/1164M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal com.spotify:docker-maven-plugin:0.2.12:build (docker-image-create) on project xxx: Exception caught: Request error: POST unix://localhost:80/build?t=evollis/middle-business:049daf7: 500: HTTP 500 Internal Server Error -> [Help 1]

I don't know if it is possible to get more feedback from the docker daemon but that'll have been great to get the underlying error message

[tatsuya]

+1

[ghiron]

+1

[MarkNBroadhead]

+1 Having an issue right now and troubleshooting is difficult without more visibility. It appears more specific error messages are returned in the body of the error. Is there any way this information can be returned in the stack trace?

[fc572]

I have had the same issue. This happens because Docker build process doesn't like upper case letters in the image name.
Change the artifact id in your pom file to have all lowercase letters.

[davidxia]

This looks like a duplicate of this issue. Closing this one.