add 增加 docker 配置

ruoyi-admin/Dockerfile

@@ -0,0 +1,13 @@
+FROM anapsix/alpine-java:8_server-jre_unlimited
+
+MAINTAINER Lion Li
+
+RUN mkdir -p /ruoyi/admin
+
+WORKDIR /ruoyi/admin
+
+EXPOSE 8080
+
+ADD ./target/ruoyi-admin.jar ./app.jar
+
+ENTRYPOINT ["java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "app.jar"]