add Dockerfile for armv8a

Dockerfile.armv8a

@@ -0,0 +1,20 @@
+FROM arm64v8/ubuntu:16.04
+
+RUN apt-get update && apt-get install -y --no-install-recommends maven openjdk-8-jdk graphviz fonts-wqy-zenhei && rm -rf /var/lib/apt/lists/*
+
+COPY pom.xml /app/
+COPY src /app/src/
+
+ENV MAVEN_CONFIG=/app/.m2
+WORKDIR /app
+RUN mvn package
+
+# chmod required to ensure any user can run the app
+RUN mkdir /app/.m2 && chmod -R a+w /app
+EXPOSE 8080
+ENV HOME /app
+
+CMD java -Djetty.contextpath=/ -jar target/dependency/jetty-runner.jar target/plantuml.war
+
+# To run with debugging enabled instead
+#CMD java -Dorg.eclipse.jetty.util.log.class=org.eclipse.jetty.util.log.StdErrLog -Dorg.eclipse.jetty.LEVEL=DEBUG -Djetty.contextpath=/ -jar target/dependency/jetty-runner.jar target/plantuml.war