Maven'；Dockerfile中的生命周期

首先谢谢你抽出时间。我试图在dockerfile中运行maven命令：

# Base container contains maven, jdk on ubuntu
FROM maven:3-jdk-8
# copy my build config pom file to container
ADD pom.xml /app/
# copy the source file directory to the container
ADD src/ /app/src/
# move the app directory inside container to perform mvn buill
WORKDIR /app/
RUN ["mvn", "dependency:resolve"]  
RUN ["mvn", "verify"]
# resolve dependency offline as suggested by Nicolas
#RUN mvn dependency:go-offline
# build by using maven
RUN mvn package 

但我对代理有问题：

$ docker build -t mavenimagen .
Sending build context to Docker daemon 124.9 kB
Step 1 : FROM maven:3-jdk-8
 ---> b2ef69e414f5
Step 2 : ADD pom.xml /app/
 ---> Using cache
 ---> 57e5b52fe34b
Step 3 : ADD src/ /app/src/
 ---> Using cache
 ---> ace1a117cb4f
Step 4 : WORKDIR /app/
 ---> Using cache
 ---> da544b2298a1
Step 5 : RUN mvn dependency:resolve
 ---> Running in 26258aec0093
[INFO] Scanning for projects...
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-jar-plugin/2.4/maven-jar-plugin-2.4.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-jar-plugin:2.4: Plugin org.apache.maven.plugins:maven-jar-plugin:2.4 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-jar-plugin:jar:2.4
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-shade-plugin/2.1/maven-shade-plugin-2.1.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-shade-plugin:2.1: Plugin org.apache.maven.plugins:maven-shade-plugin:2.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-shade-plugin:jar:2.1
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.5/maven-clean-plugin-2.5.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-clean-plugin:2.5: Plugin org.apache.maven.plugins:maven-clean-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.5
Downloading: https://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.6/maven-resources-plugin-2.6.pom

我想我必须添加settings.xml，但我不知道是否必须添加到项目的根目录或其他目录中

---

欢迎

您还没有发布确切的代理问题，但不管是什么，您可能必须将自定义的

settings.xml

文件（

ADD settings.xml/app/

）放入Maven中（

RUN mvn-s settings.xml package

）

---

如果它将是多个调用，我建议将

settings.xml

放在

~/.m2/

中，以便在每次Maven调用时默认使用它。

问题解决了，问题是代理

我不得不在dockerfile中添加这一行

ADD settings.xml /root/.m2/settings.xml

---

谢谢

这是您尝试构建的唯一应用程序吗？如果不是，我建议构建两个图像，如下所示：

• Maven构建映像：包含java和Maven，设置xml位于~/.m2中。此映像具有源代码的卷装载，因此可以在CI/CD管道中多次使用
• 应用程序映像：此映像只有java来运行应用程序，即使在生产环境中也可以用来运行容器

---

嗯

我试过你的建议，但没有看到结果。顺便说一下，我修改了我的问题，添加了我的代理问题。谢谢你的回答和时间：）不，我知道是哪个Maven电话引起了这个问题。它是

运行mvn依赖项：解析
。如果将其更改为
RUN mvn-s settings.xml dependency:resolve
，则一切正常。或者，如果它现在不止一个，按照我的建议，只需将
settings.xml
文件放入
~/.m2/
。