CloudFoundry和JDK [英] CloudFoundry and JDK

问题描述

我正在努力部署需要在运行时编译Java代码的spring应用程序。当用户提交问题解决方案时，我的应用程序会调用javac命令，以便以后可以运行Java

I'm struggling with the deployment of a spring app that needs to compile java code during runtime. My app calls the javac command when a user submits a solution to a problem, so it can later run java

我正在部署到Cloud Foundry并使用java-buildpack，但不幸的是，它不是JDK附带的，只有JRE是可用的，而且那东西没有javac或java命令。

I'm deploying to cloud foundry and using the java-buildpack, but unfortunately, it doesn't come with JDK, only JRE is available and that thing has no javac or java commands available.

你们知道如何将JDK添加到云代工厂的方法吗？

Do you guys know a way on how to add JDK to cloud foundry, without having to write my own custom buildpack.

谢谢

推荐答案

我建议您使用多构建包支持，并使用apt-buildpack安装JDK。它应该与JBP一起正常工作。

I would suggest you use multi-buildpack support and use the apt-buildpack to install a JDK. It should work fine alongside the JBP. It just needs to be first in the list.

https://github.com/cloudfoundry/apt-buildpack

示例：

1. 创建apt.yml。

1. Create an apt.yml.

 ---
 packages:
 - openjdk-11-jdk-headless

将其捆绑到您的JAR中， jar uf path / to / your / file.jar apt.yml 。应该将其添加到JAR的根目录中，因此，如果您 jar tf path / to / your / file.jar ，您应该只会看到 apt。 yml 并没有前缀。

Bundle that into your JAR, jar uf path/to/your/file.jar apt.yml. It should be added to the root of the JAR, so if you jar tf path/to/your/file.jar you should see just apt.yml and nothing prefixed to it.

更新manifest.yml。在列表中首先添加apt-buildpack。

Update your manifest.yml. Add the apt-buildpack first in the list.

 ---
 applications:
 - name: spring-music
   memory: 1G
   path: build/libs/spring-music-1.0.jar
   buildpacks:
   - https://github.com/cloudfoundry/apt-buildpack#v0.2.2
   - java_buildpack

然后 cf push 。您应该看到apt-buildpack运行并安装JDK。然后将其安装在〜/ deps / 0 / lib / jvm / java-11-openjdk-amd64 下。它似乎也不以PATH结尾，因此请使用完整路径 javac 或更新路径。

Then cf push. You should see the apt-buildpack run and install the JDK. It'll then be installed under ~/deps/0/lib/jvm/java-11-openjdk-amd64. It does not appear to end up on the PATH either, so use a full path to javac or update the path.

这篇关于CloudFoundry和JDK的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！