add scala_helloworld

Author: suaaa7

README.md

@@ -1,2 +1,7 @@
 # SampleCodeForQiita
 Qiitaに投稿した記事に関係するコードを上げるレポジトリ
+
+- [入門]Scalaで「Hello World!」してみた
+    - scala_helloworld
+    - https://qiita.com/suaaa7/items/81fd3f7a0bb5d5509b56
+

scala_helloworld/Dockerfile

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+FROM centos:7
+
+# JVM
+RUN yum -y install java-1.8.0-openjdk java-1.8.0-openjdk-devel
+
+ENV JAVA_HOME /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.144-0.b01.el7_4.x86_64
+ENV PATH $PATH:$JAVA_HOME/bin
+ENV CLASSPATH .:$JAVA_HOME/jre/lib:$JAVA_HOME/lib:$JAVA_HOME/lib/tools.jar
+
+# Scala
+WORKDIR /usr/local/lib
+RUN yum -y install wget
+RUN wget http://downloads.typesafe.com/scala/2.12.6/scala-2.12.6.tgz
+RUN tar zxvf scala-2.12.6.tgz
+RUN ln -s scala-2.12.6 scala
+
+ENV SCALA_HOME=/usr/local/lib/scala
+ENV PATH $PATH:$SCALA_HOME/bin
+
+# sbt
+RUN curl https://bintray.com/sbt/rpm/rpm | tee /etc/yum.repos.d/bintray-sbt-rpm.repo
+RUN yum -y install sbt
+RUN sbt
+
+RUN mkdir -p /opt/scala
+WORKDIR /opt/scala
+
+CMD ["/bin/bash"]

scala_helloworld/docker-compose.yml

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+scala_sbt:
+  container_name: scala_sbt
+  build: .
+  volumes:
+    - ./scripts:/opt/scala
+  tty: true