No reload with skaffold dev on Kotlin code when using Jib with Java + Kotlin

Expected behavior

I am expecting the skaffold dev to reload a new “version” of the app on each modification of a java + kotlin project built with Jib.

Actual behavior

The skaffold dev doesn’t detect any changes on the file system when I change code in the Kotlin part.

Information

• Skaffold version: v0.37.1
• Operating system: macOS
• Contents of skaffold.yaml:

apiVersion: skaffold/v1beta13
kind: Config
build:
  artifacts:
    - image: podcastserver/backend
      context: backend
      jibMaven:
        args:
          - liquibase:dropAll
          - liquibase:update
          - jooq-codegen:generate
          - compile
          - -Dmaven.test.skip
deploy:
  kustomize:
    path: backend/src/main/k8s/docker-for-mac/

Extra information:

I’ve dug a little into the skaffold and jib implementation and found out skaffold execute the following command to define files to watch:

mvn jib:_skaffold-files-v2 -q

And the current result for this command is the following in my project:

{
  "build": [
    "/Users/kevin/Workspace/gitlab.com/davinkevin/Podcast-Server/backend/pom.xml"
  ],
  "inputs": [
    "/Users/kevin/Workspace/gitlab.com/davinkevin/Podcast-Server/backend/src/main/java",
    "/Users/kevin/Workspace/gitlab.com/davinkevin/Podcast-Server/backend/src/main/resources",
    "/Users/kevin/Workspace/gitlab.com/davinkevin/Podcast-Server/backend/src/main/resources",
    "/Users/kevin/Workspace/gitlab.com/davinkevin/Podcast-Server/backend/src/main/jib"
  ],
  "ignore": []
}

So, it seems to only look for files into src/main/java. I don’t know if my project follows the “maven state of the art configuration for Java + Kotlin”, but I didn’t find any information about this use case.

It should be good to be able to configure manually or take some folder if they exist.

PS: I think the title of the issue is very bad, but I didn’t find anything better, so I let you change it if you have a better idea !

Steps to reproduce the behavior

1. git clone [e-mail]:davinkevin/Podcast-Server.git (or git clone https://gitlab.com/davinkevin/Podcast-Server.git if it doesn’t work)
2. cd podcast-server
3. ./dev.sh which trigger some file system init (in /tmp folder) required by the app and then launch a skaffold dev command
4. Do any modification on a file located inside backend/src/main/kotlin/... and see there is no “reload” from the skaffold dev command.

[chanseokoh]

#2010 makes jib:_skaffold-files-v2 to extract path values from <sourceDir> configured on the Kotlin Maven plugin. The next Jib version will support this use case.

Haven’t looked into the Gradle side. I’ll re-open the issue for tracking.

[davinkevin]

All is working perfectly 🎉with skaffold 0.41.0 and jib 1.7.0. Thanks to all