maven - Dockerfile中的Maven生命周期

Question

首先感谢您的宝贵时间。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 

但是我在代理方面有问题:

$ 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，但是我不知道是否必须在项目的根目录或其他目录中添加。

问候!

Answer 1

您尚未发布确切的代理问题，但是无论它是什么，您都可能必须放置自定义的settings.xml文件(ADD settings.xml /app/)，然后将其与Maven(RUN mvn -s settings.xml package)一起使用。

如果将要进行多个调用，建议将settings.xml放入~/.m2/，以便默认情况下将在每个Maven调用中使用它。