使用maven構建springboot docker映象並push到nexus

前面學習了使用gradle構建springboot docker映象，docker學習(三) gradle 使用docker外掛自動構建springboot工程，現在學習使用maven外掛構建，外掛採用 com.spotify docker-maven-plugin。springboot maven 構建docker映象工程github地址。 nexus的安裝可參考上一篇的介紹，maven環境的安裝不用介紹了，很簡單，可參閱資料安裝。

1 按照github地址構建一個springboot工程並配置外掛。pom.xml如下:

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
 


    <groupId>com.zqw</groupId>
    <artifactId>docker-maven</artifactId>
    <version>1.0</version>
    <!-- Inherit defaults from Spring Boot -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId
 
>
        <version>2.1.0.M1</version>
    </parent>

    <!-- Add typical dependencies for a web application -->
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

    <!-- Package as an executable jar -->
    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>

            <plugin>
                <groupId>com.spotify</groupId>
                <artifactId>docker-maven-plugin</artifactId>
                <version>1.1.1</version>
                <configuration>
                    <imageName>192.168.1.4:7003/dockermaven:1.0</imageName>
                    <baseImage>java</baseImage>
                    <entryPoint>["java", "-jar", "/${project.build.finalName}.jar"]</entryPoint>
                    <resources>
                        <resource>
                            <targetPath>/</targetPath>
                            <directory>${project.build.directory}</directory>
                            <include>${project.build.finalName}.jar</include>
                        </resource>
                    </resources>
                    <serverId>docker</serverId>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <!-- Add Spring repositories -->
    <!-- (you don't need this if you are using a .RELEASE version) -->
    <repositories>
        <repository>
            <id>spring-snapshots</id>
            <url>https://repo.spring.io/snapshot</url>
            <snapshots><enabled>true</enabled></snapshots>
        </repository>
        <repository>
            <id>spring-milestones</id>
            <url>https://repo.spring.io/milestone</url>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>spring-snapshots</id>
            <url>https://repo.spring.io/snapshot</url>
        </pluginRepository>
        <pluginRepository>
            <id>spring-milestones</id>
            <url>https://repo.spring.io/milestone</url>
        </pluginRepository>
    </pluginRepositories>

</project>

下面是docker外掛的程式碼,imageName標籤指定映象名稱，前面的IP 埠與nexus一致，baseImage對應DockerFile的From entryPoint也與DockerFile的entryPoint一樣，指定啟動命令以及引數。

<plugin>
                <groupId>com.spotify</groupId>
                <artifactId>docker-maven-plugin</artifactId>
                <version>1.1.1</version>
                <configuration>
                    <imageName>192.168.1.4:7003/dockermaven:1.0</imageName>
                    <baseImage>java</baseImage>
                    <entryPoint>["java", "-jar", "/${project.build.finalName}.jar"]</entryPoint>
                    <resources>
                        <resource>
                            <targetPath>/</targetPath>
                            <directory>${project.build.directory}</directory>
                            <include>${project.build.finalName}.jar</include>
                        </resource>
                    </resources>
                    <serverId>docker</serverId>
                </configuration>
            </plugin>

上面的配置中還有個serviceId標籤。對應maven settings.xml配置檔案的一個server

<server>
  <id>docker</id>
  <username>docker</username>
  <password>docker</password>
  <configuration>
    <email>[email protected]</email>
  </configuration>
</server>

其中id標籤對應上面的serviceId,username password email分別對應nexus倉庫對應的使用者名稱、密碼、email。
至此配置結束

2 執行命令 mvn clean package docker:build -DpushImage 。可以發現nexus中已經push成功了。如下: