我正在尝试在Docker容器中构建/部署Spring Boot。
FROM maven:3.5.3-jdk-8-slim AS build COPY ./pom.xml /app/pom.xml RUN cd /app RUN mvn -f /app/pom.xml -s /usr/share/maven/ref/settings-docker.xml dependency:go-offline dependency:resolve-plugins -B COPY . /app RUN mvn -f /app/pom.xml -s /usr/share/maven/ref/settings-docker.xml --batch-mode package -DskipTests
如您所见,我使用第一个mvn命令缓存所有依赖项,以便我的代码应用程序中的每次更改都不会触发大量依赖项下载。它适用于大多数依赖项,但有些仍被下载(即使已缓存)。这是第二个mvn命令(软件包)的日志:
[INFO] Scanning for projects... [INFO] [INFO] ----------------------< xxx:xxx >---------------------- [INFO] Building xxxx 0.0.0 [INFO] --------------------------------[ jar ]--------------------------------- [INFO] [INFO] --- apt-maven-plugin:1.1.3:process (default) @ vsol-java --- [INFO] Downloading from spring-releases: https://repo.spring.io/libs-release/org/apache/commons/commons-io/1.3.2/commons-io-1.3.2.pom [INFO] Downloaded from spring-releases: https://repo.spring.io/libs-release/org/apache/commons/commons-io/1.3.2/commons-io-1.3.2.pom (0 B at 0 B/s) [INFO] Downloading from spring-releases: https://repo.spring.io/libs-release/commons-io/commons-io/1.3.2/commons-io-1.3.2.pom [INFO] Downloaded from spring-releases: https://repo.spring.io/libs-release/commons-io/commons-io/1.3.2/commons-io-1.3.2.pom (0 B at 0 B/s) [INFO] Downloading from spring-releases: https://repo.spring.io/libs-release/org/apache/commons/commons-parent/3/commons-parent-3.pom [INFO] Downloaded from spring-releases: https://repo.spring.io/libs-release/org/apache/commons/commons-parent/3/commons-parent-3.pom (0 B at 0 B/s) [INFO] Downloading from spring-releases: https://repo.spring.io/libs-release/org/sonatype/plexus/plexus-build-api/0.0.7/plexus-build-api-0.0.7.jar ...
(顺便说一句,(0 B / s下的0 B)有点奇怪…只是检查一下?)
如果我根据第一个maven命令之后的步骤启动容器(mvn依赖项:…)(应该缓存所有依赖项的容器)
root@3281a837a236:/usr/share/maven/ref/repository# ls -lh org/codehaus/plexus/plexus-utils/1.5.15 total 244K -rw-r--r-- 1 root root 202 Oct 19 12:07 _remote.repositories -rw-r--r-- 1 root root 223K Oct 19 12:07 plexus-utils-1.5.15.jar -rw-r--r-- 1 root root 40 Oct 19 12:07 plexus-utils-1.5.15.jar.sha1 -rw-r--r-- 1 root root 6.7K Oct 19 12:07 plexus-utils-1.5.15.pom -rw-r--r-- 1 root root 40 Oct 19 12:07 plexus-utils-1.5.15.pom.sha1
lib似乎在那里,但是我可以在mvn包的日志中看到它:
[INFO]从spring-releases下载:https : //repo.spring.io/libs-release/org/codehaus/plexus/plexus-utils/1.5.15/plexus- utils-1.5.15.jar
如果我以脱机模式运行mvn软件包,则它将失败,因为它无法访问https://repo.spring.io/libs- release。
因此,看起来它已被缓存,但是maven仍尝试下载此文件。我已经在我的pom.xml中尝试过
<pluginRepository> <id>spring-releases</id> <url>https://repo.spring.io/libs-release</url> <snapshots> <enabled>true</enabled> <updatePolicy>never</updatePolicy> </snapshots> <releases> <enabled>true</enabled> <updatePolicy>never</updatePolicy> </releases> </pluginRepository>
但是没有效果。
任何的想法?谢谢!
我终于通过使用go-offline-maven-plugin找到了解决方案。
<plugin> <groupId>de.qaware.maven</groupId> <artifactId>go-offline-maven-plugin</artifactId> <version>1.0.0</version> <configuration> <dynamicDependencies> <DynamicDependency> <groupId>org.apache.maven.surefire</groupId> <artifactId>surefire-junit4</artifactId> <version>2.20.1</version> <repositoryType>PLUGIN</repositoryType> </DynamicDependency> </dynamicDependencies> </configuration> </plugin>
并尝试使用以下方法获取所有依赖项:
mvn de.qaware.maven:go-offline-maven-plugin:resolve-dependencies