Spring Boot Docker

Author: jonssonyan

springboot-docker/Dockerfile

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+FROM java:8
+MAINTAINER "Jonsson Yan"
+EXPOSE 8080
+ARG JAR_FILE=target/*.jar
+COPY ${JAR_FILE} app.jar
+ENTRYPOINT ["java","-jar","/springboot-docker.jar"]

springboot-docker/README.md

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+# Dockerfile
+
+```dockerfile
+# 基础镜像
+FROM java:8
+
+# 作者信息
+MAINTAINER "Jonsson Yan"
+
+# 暴露8080端口
+EXPOSE 8080
+
+# 添加变量，如果使用dockerfile-maven-plugin，则会自动替换这里的变量内容
+ARG JAR_FILE=target/*.jar
+
+# 复制jar包到容器中
+COPY ${JAR_FILE} app.jar
+
+# 启动镜像自动运行程序
+ENTRYPOINT ["java","-jar","/springboot-docker.jar"]
+```
+
+# 手动打包
+
+```shell
+# 前往 Dockerfile 目录，打开命令行执行
+docker build -t springboot-docker .
+# 查看生成镜像
+docker images
+# 运行
+docker run -d -p 8080:8080 --name springboot-docker-demo springboot-docker
+# 查看启动日志
+docker logs -n 300 -f springboot-docker-demo
+```
+
+# Reference
+- Docker 官方文档：https://docs.docker.com/
+- Dockerfile 命令 参考文档：https://docs.docker.com/engine/reference/builder/
+- Maven插件使用 参考地址：https://github.com/spotify/dockerfile-maven
+- Spring Boot with Docker:https://spring.io/guides/gs/spring-boot-docker/

springboot-docker/pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.3.2.RELEASE</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>com.springboot</groupId>
+    <artifactId>springboot-docker</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>springboot-docker</name>
+    <description>Demo project for Spring Boot Docker</description>
+    <properties>
+        <java.version>1.8</java.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

springboot-docker/src/main/java/com/springboot/SpringbootDockerApplication.java

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+package com.springboot;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SpringbootDockerApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringbootDockerApplication.class, args);
+    }
+
+}

springboot-docker/src/main/java/com/springboot/controller/TestController.java

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+package com.springboot.controller;
+
+import org.springframework.stereotype.Controller;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+public class TestController {
+    @RequestMapping("/helloDocker")
+    public String helloDocker() {
+        return "Hello Docker!";
+    }
+}

springboot-docker/src/main/resources/application.properties

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+

springboot-docker/src/test/java/com/springboot/SpringbootDockerApplicationTests.java

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+package com.springboot;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class SpringbootDockerApplicationTests {
+
+    @Test
+    void contextLoads() {
+    }
+
+}