V.V.'s Blog

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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    <modelVersion>4.0.0</modelVersion>
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    <parent>
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        <groupId>org.springframework.boot</groupId>
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        <artifactId>spring-boot-starter-parent</artifactId>
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        <version>2.3.0.RELEASE</version>
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        <relativePath/> <!-- lookup parent from repository -->
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    </parent>
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    <groupId>com.example</groupId>
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    <artifactId>springboot-dockerfile-demo</artifactId>
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    <version>0.0.1-SNAPSHOT</version>
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    <name>springboot-dockerfile-demo</name>
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    <description>Demo project for Spring Boot</description>
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    <properties>
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        <java.version>1.8</java.version>
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    </properties>
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    <dependencies>
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        <dependency>
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            <groupId>org.springframework.boot</groupId>
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            <artifactId>spring-boot-starter-web</artifactId>
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        </dependency>
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        <dependency>
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            <groupId>org.springframework.boot</groupId>
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            <artifactId>spring-boot-starter-test</artifactId>
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            <scope>test</scope>
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            <exclusions>
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                <exclusion>
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                    <groupId>org.junit.vintage</groupId>
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                    <artifactId>junit-vintage-engine</artifactId>
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                </exclusion>
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            </exclusions>
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        </dependency>
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    </dependencies>
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    <build>
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        <plugins>
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            <plugin>
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                <groupId>org.springframework.boot</groupId>
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                <artifactId>spring-boot-maven-plugin</artifactId>
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                <executions>
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                    <execution>
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                        <goals>
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                            <goal>repackage</goal>
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                        </goals>
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                    </execution>
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                </executions>
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                  <configuration>
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                    <layers>
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                        <enabled>true</enabled>
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                    </layers>
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                </configuration>
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            </plugin>
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        </plugins>
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    </build>
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</project>

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package org.example.springbootdockerfiledemo.controller;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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@RestController
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public class TestController {
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    @RequestMapping("/")
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    public String index() {
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        return "Hello World!";
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    }
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}

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FROM eclipse-temurin:8-jdk AS builder
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WORKDIR app
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ARG JAR_FILE=target/*.jar
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COPY ${JAR_FILE} app.jar
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RUN java -Djarmode=layertools -jar app.jar extract
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FROM eclipse-temurin:8-jre
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WORKDIR app
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COPY --from=builder app/dependencies/ ./
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COPY --from=builder app/spring-boot-loader/ ./
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COPY --from=builder app/snapshot-dependencies/ ./
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COPY --from=builder app/application/ ./
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ENV TZ=Asia/Shanghai
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VOLUME ["/tmp", "/app/log"]
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EXPOSE 8080
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ENTRYPOINT ["java", "org.springframework.boot.loader.JarLauncher"]

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mvn clean install -Dmaven.test.skip=true
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docker build -t springboot-dockerfile-demo:latest .

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version: '3'
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services:
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  springboot-dockerfile-demo:
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    container_name: springboot-dockerfile-demo
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    image: springboot-dockerfile-demo:latest
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    restart: always
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    ports:
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      - "8080:8080"
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    environment:
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      TZ: Asia/Shanghai
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    volumes:
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      - "./log:/app/log" # 日志目录

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docker compose up -d

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docker ps
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docker compose logs