play sbt ne démarre pas sur scala docker image

Question

J'essaie d'exécuter mon application play/scala sur l'image du docker bitbucketpipelines/scala-sbt: scala-2.12. L'application démarre mais elle quitte juste après sans aucun message d'erreur (comme si elle se terminait normalement).

root@db0eca2925cf:~# sbt -v -XX:MaxMetaspaceSize=256m run < /dev/null 
[process_args] java_version = '1.8' 
# Executing command line: 
java 
-Xms1024m 
-Xmx1024m 
-XX:ReservedCodeCacheSize=128m 
-XX:MaxMetaspaceSize=256m 
-jar 
/usr/share/sbt/bin/sbt-launch.jar 
-XX:MaxMetaspaceSize=256m 
run 

[info] Loading project definition from /root/project 
[info] Set current project to MyApp (in build file:/root/) 
[warn] The `-` command is deprecated in favor of `onFailure` and will be removed in 0.14.0 
[info] Generated messages files 
[info] Generated messages files 

--- (Running the application, auto-reloading is enabled) --- 

[info] p.c.s.NettyServer - Listening for HTTP on /0.0.0.0:9000   

(Server started, use Ctrl+D to stop and go back to the console...) 

[info] p.c.s.NettyServer - Stopping server... 

[success] Total time: 24 s, completed Oct 13, 2017 4:35:44 AM 
root@db0eca2925cf:~# 

Quelque chose me manque? Voici comment j'ai créé le conteneur:

docker run -it \ 
     --volume=<my project root here>:/root \ 
     --workdir="/root" \ 
     --memory=4g --memory-swap=4g --memory-swappiness=0 \ 
     bitbucketpipelines/scala-sbt:scala-2.12 /bin/bash 

Answer 1

Essayez d'ajouter -a stdin -a stdout -a stderr. Voir foreground dans les documents docker.