<?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>2.4.5</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.ljq</groupId>
    <artifactId>docker_pack_demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>docker_pack_demo</name>
    <description>docker打包测试</description>
    <properties>
        <java.version>1.8</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <dependencies>
                    <dependency>
                        <groupId>org.springframework.boot.experimental</groupId>
                        <artifactId>spring-boot-thin-layout</artifactId>
                        <version>1.0.26.RELEASE</version>
                    </dependency>
                </dependencies>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
            <!-- docker构建插件 -->
            <plugin>
                <groupId>com.spotify</groupId>
                <artifactId>docker-maven-plugin</artifactId>
                <version>1.0.0</version>
                <configuration>
                    <!-- 生成的docker镜像名称  -->
                    <imageName>${docker.image.prefix}/${project.artifactId}</imageName>
                    <dockerDirectory>${project.basedir}/src/main/docker</dockerDirectory>
                    <resources>
                        <resource>
                            <targetPath>/</targetPath>
                            <directory>${project.build.directory}</directory>
                            <include>${project.build.finalName}.jar</include>
                        </resource>
                    </resources>
                </configuration>
            </plugin>
            <!-- 复制jar包到指定目录 -->
            <plugin>
                <artifactId>maven-antrun-plugin</artifactId>
                <executions>
                    <execution>
                        <phase>package</phase>
                        <configuration>
                            <tasks>
                                <copy todir="src/main/docker" file="target/${project.artifactId}-${project.version}.${project.packaging}"></copy>
                            </tasks>
                        </configuration>
                        <goals>
                            <goal>run</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

开始编写dockerFile文件

FROM java:latest 到时候docker 会去下载openjdk 8
ENV 定义参数

jrebel.jar和libjrebel64.so 热部署必须的

这个是为了简单起见的，不想用这个的话可以去官网下载文件
这个两个文件需要从哪里找的
64位操作系统就选择64结尾的，32位操作系统就选择32结尾的；Linux选择.so后缀的，Mac选择.dylib结尾的，windows选择.dll结尾的
jrebel.jar和libjrebel64.so建议放到可以用http下载的地方
本人电脑用的是win11，不要在意细节哈
看下面例子

热启动必须的

-Xdebug","-Xrunjdwp:server=y,transport=dt_socket,address=${DBUG_SERVER_PORT},suspend=n","-agentpath:/libjrebel64.so"

# 指定基础镜像 这里springboot项目运行只需要java jdk环境即可
FROM java:latest
#端口号
ENV SERVER_PORT=8080
#Dbug
ENV DBUG_SERVER_PORT=8081
#指定使用utf-8编码运行
ENV LANG en_US.UTF-8
ENV LANGUAGE en_US:en
ENV LC_ALL en_US.UTF-8
# 维护者信息
MAINTAINER ljq
# 重命名
ADD *.jar app.jar
#添加jrebel的包
ADD http://192.168.1.50/file/jrebel.jar /jrebel.jar
ADD http://192.168.1.50/file/libjrebel64.so /libjrebel64.so
# 对外暴漏的端口号
EXPOSE $SERVER_PORT
# 运行
ENTRYPOINT ["java", "-jar","-Xdebug","-Xrunjdwp:server=y,transport=dt_socket,address=${DBUG_SERVER_PORT},suspend=n","-agentpath:/libjrebel64.so","-Drebel.remoting_plugin=true","-Djava.security.egd=file:/dev/./urandom", "app.jar","--server.port=${SERVER_PORT}"]

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