initial dockerfiles for openjdk 8u222, openjfx 8, sbt 1.3.0 and scala…

… 2.13.0

README.md

@@ -1,2 +1,7 @@
 # docker-openjdk-javafx-sbt
-Docker files for OpenJDK with JavaFX and SBT
+Docker files for OpenJDK with JavaFX and SBT. Inspired by https://github.com/hseeberger/scala-sbt/ but simpler and is primarily intented for **building** your projects, eg CI and so on.  
+
+There are three options:
+- image-amazon = [Amazon Corretto](https://docs.aws.amazon.com/corretto/latest/corretto-8-ug/docker-install.html) (which already includes OpenJFX) + SBT
+- image-debian = pure Debian + OpenJDK JDK + OpenJFX + SBT, **recommended**
+- image-openjdk = similar to image-debian but based on official openjdk image, however OpenJFX installation is hacky

image-amazon/Dockerfile

@@ -0,0 +1,25 @@
+# Amazon Corretto 8 provides JavaFX out-of-the-box
+FROM amazoncorretto:8u222
+
+# The following is inspired by https://github.com/hseeberger/scala-sbt/blob/master/oracle/Dockerfile
+ENV SCALA_VERSION 2.13.0
+ENV SBT_VERSION 1.3.0
+
+# Install sbt
+RUN \
+  curl -L -o /root/sbt-${SBT_VERSION}.rpm https://bintray.com/sbt/rpm/download_file?file_path=sbt-${SBT_VERSION}.rpm && \
+  yum install -y /root/sbt-${SBT_VERSION}.rpm && \
+  yum clean all && \
+  rm /root/sbt-${SBT_VERSION}.rpm
+
+# Prepare sbt and Scala, verify compilation including JavaFX classes
+WORKDIR /root/dummy
+RUN \
+  mkdir -p project && \
+  echo "scalaVersion := \"${SCALA_VERSION}\"" > build.sbt && \
+  echo "sbt.version=${SBT_VERSION}" > project/build.properties && \
+  echo -e 'import java.nio.file.Path\nimport javafx.application.Application\ncase object Temp' > Temp.scala && \
+  sbt compile && \
+  rm -rf /root/dummy
+
+WORKDIR /root

image-debian/Dockerfile

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+# Debian Stretch provides proper openjfx version for Java 8
+FROM buildpack-deps:stretch-scm
+
+# Install OpenJDK JDK and OpenJFX
+RUN apt-get update && apt-get install -y --no-install-recommends openjdk-8-jdk openjfx && rm -rf /var/lib/apt/lists/*
+
+# The following is inspired by https://github.com/hseeberger/scala-sbt/blob/master/debian/Dockerfile
+ENV SCALA_VERSION 2.13.0
+ENV SBT_VERSION 1.3.0
+RUN \
+  curl -L -o /root/sbt-${SBT_VERSION}.deb https://dl.bintray.com/sbt/debian/sbt-${SBT_VERSION}.deb && \
+  apt-get install -y /root/sbt-${SBT_VERSION}.deb && \
+  rm /root/sbt-${SBT_VERSION}.deb
+
+# Prepare sbt and Scala, verify compilation including JavaFX classes
+WORKDIR /root/dummy
+RUN \
+  mkdir -p project && \
+  echo "scalaVersion := \"${SCALA_VERSION}\"" > build.sbt && \
+  echo "sbt.version=${SBT_VERSION}" > project/build.properties && \
+  echo 'import java.nio.file.Path\nimport javafx.application.Application\ncase object Temp' > Temp.scala && \
+  sbt compile && \
+  rm -rf /root/dummy
+
+WORKDIR /root

image-openjdk/Dockerfile

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+# Debian Stretch provides proper openjfx version for Java 8
+FROM openjdk:8u222-jdk-stretch
+
+# Install OpenJFX as per https://github.com/docker-library/openjdk/issues/158
+RUN apt-get update && apt-get install -y --no-install-recommends openjfx && rm -rf /var/lib/apt/lists/*
+
+# The following is inspired by https://github.com/hseeberger/scala-sbt/blob/master/debian/Dockerfile
+ENV SCALA_VERSION 2.13.0
+ENV SBT_VERSION 1.3.0
+RUN \
+  curl -L -o /root/sbt-${SBT_VERSION}.deb https://dl.bintray.com/sbt/debian/sbt-${SBT_VERSION}.deb && \
+  apt-get install -y /root/sbt-${SBT_VERSION}.deb && \
+  rm /root/sbt-${SBT_VERSION}.deb
+
+# Fix OpenJFX installation for local JDK
+RUN \
+  ln -s -t "$JAVA_HOME/jre/lib/" $(find /usr/share/java/openjfx/jre/lib/ -maxdepth 1 -type f) && \
+  ln -s -t "$JAVA_HOME/jre/lib/ext/" $(find /usr/share/java/openjfx/jre/lib/ext/ -maxdepth 1 -type f)
+
+# Prepare sbt and Scala, verify compilation including JavaFX classes
+WORKDIR /root/dummy
+RUN \
+  mkdir -p project && \
+  echo "scalaVersion := \"${SCALA_VERSION}\"" > build.sbt && \
+  echo "sbt.version=${SBT_VERSION}" > project/build.properties && \
+  echo 'import java.nio.file.Path\nimport javafx.application.Application\ncase object Temp' > Temp.scala && \
+  sbt compile && \
+  rm -rf /root/dummy
+
+WORKDIR /root