Bad root server path for configuration file using Docker

[peacefulotter]

Play Version

Play Version 2.8.19

API

Scala: 2.13.10
Java 1.8.0_362

Operating System

Linux echo 5.19.0-40-generic #41~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Fri Mar 31 16:00:14 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

JDK

openjdk version "18" 2022-03-22
OpenJDK Runtime Environment (build 18+36-2087)
OpenJDK 64-Bit Server VM (build 18+36-2087, mixed mode, sharing)

Library Dependencies

"com.typesafe.play" %% "play-slick" % "5.1.0",
"org.postgresql" % "postgresql" % "42.5.4"

Expected Behavior

1. Build docker container using sbt "Docker \ publishLocal"
2. Run container using docker run --rm -p 9000:9000 playground-api
3. Have the container running without error

Actual Behavior

When entering the docker run command, a Bad Server Root path exception is thrown.

/opt/docker/bin/play-scala-seed: line 99: is_cygwin: not found
Bad root server path: /opt/docker/-Dconfig.resource=/opt/docker/conf/production.conf

Reproducible Test Case

/conf/production.conf

include "application.conf"
application.mode=prod
play.http.secret.key="SECRET GENERATED USING sbt playGenerateSecret"
%production%.application.baseUrl="https://subdomain.example.com"
play.filters.hosts {
  allowed = [".example.com", "localhost:9000"]
}

build.sbt

...
Docker / version := sys.env.getOrElse("BUILD_NUMBER", "0")
Docker / daemonUserUid  := None
Docker / daemonUser := "daemon"
dockerExposedPorts := Seq(9000)
dockerBaseImage := "openjdk:8-jre-alpine"
dockerUpdateLatest := true
dockerEntrypoint := Seq("/opt/docker/bin/play-scala-seed", "-Dconfig.resource=/opt/docker/conf/production.conf")

Running sbt "Docker \ publishLocal" produces the following Dockerfile:

FROM openjdk:8-jre-alpine
LABEL MAINTAINER="name@example.com
WORKDIR /opt/docker
COPY --chown=daemon:root opt /opt
EXPOSE 9000
USER daemon
ENTRYPOINT ["/opt/docker/bin/play-scala-seed", "-Dconfig.resource=/opt/docker/conf/production.conf"]
CMD []

What I have tried

1. Changing the dockerEntrypoint from the build.sbt file to "-Dconfig.resource=/conf/production.conf" or "-Dconfig.resource=production.conf"
2. Putting the -Dconfig.resource to the docker run command: docker run ... playground-api -Dconfig.resource=./conf/production.conf

[mkurz]

/opt/docker/bin/play-scala-seed: line 99: is_cygwin: not found

This seems strange to me. The script generated by sbt-native package should contain a function something like:

# Uses uname to detect if we're in the odd cygwin environment.
is_cygwin() {
  local os=$(uname -s)
  case "$os" in
    CYGWIN*) return 0 ;;
    *)  return 1 ;;
  esac
}

This is what it generates me when running sbt stage

[peacefulotter]

As per this link, one can ignore this error message:
"Run a docker container of your application: docker run --rm -p 9000:9000 playground-api.
If you see a message like is_cygwin: not found you can ignore it. It is an output of the start script"

[peacefulotter]

Hi, I am curious if this has been answered somewhere else or fixed. Any news?