如何在Cloud Foundry中将自定义C共享库与Java应用程序捆绑在一起？ [英] How do I bundle a Custom C Shared Library with Java Application in Cloud Foundry?

问题描述

我以前一直在Cloud Foundry中成功部署Java应用程序。但是，现在开发人员已经添加了一个用C编译的共享库。我已经在 .zip 中添加了 .so 。文件（我正在使用通用打包程序，并通过zip文件部署到Cloud Foundry），并确保 .so 是可执行的。但是，当我部署时遇到错误：

I have previously been deploying a java application successfully in Cloud Foundry. However, now the developers have added a shared library compiled from C. I have added the .so to the .zip file (I'm using universal packager and deploying to Cloud Foundry by zip file) and ensured the .so is executable. However, when I deploy I get an error:

2016-12-23T14:39:01.013+00:00 [STG/0] [OUT] -----> Java Buildpack Version: eba4df6 | git://github.com/cloudfoundry/java-buildpack.git#eba4df6
2016-12-23T14:39:01.017+00:00 [STG/0] [ERR] [Buildpack] ERROR Compile failed with exception #<RuntimeError: No container can run this application. Please ensure that you’ve pushed a valid JVM artifact or artifacts using the -p command line argument or path manifest entry. Information about valid JVM artifacts can be found at https://github.com/cloudfoundry/java-buildpack#additional-documentation.
2016-12-23T14:39:01.017+00:00 [STG/0] [ERR] No container can run this application. Please ensure that you’ve pushed a valid JVM artifact or artifacts using the -p command line argument or path manifest entry. Information about valid JVM artifacts can be found at https://github.com/cloudfoundry/java-buildpack#additional-documentation.
2016-12-23T14:39:01.022+00:00 [STG/0] [ERR] Failed to compile droplet
2016-12-23T14:39:01.024+00:00 [STG/0] [OUT] Exit status 223

所以我的理解是，我需要从Java Buildpack。但是，我现在被代码困住了：
https://github.com/ONSdigital/java-buildpack/blob/master/bin/compile#L28

So my understanding is that I need to created a Custom Buildpack from the Java Buildpack. However, I am getting stuck with the code at this point: https://github.com/ONSdigital/java-buildpack/blob/master/bin/compile#L28

# Adding crf tagger library
status "Adding crf tagger support"
cp $bp_dir/parsers/src/main/resources/libbackend.so $build_dir/vendor/

# update the PATH
status "Building runtime environment"
mkdir -p $build_dir/.profile.d
echo "export PATH=\"$HOME/bin:\$HOME/vendor/:\$PATH\";" > $build_dir/.profile.d/crftagger.sh
echo "export LD_LIBRARY_PATH=\"\$HOME/vendor/\";" >> $build_dir/.profile.d/crftagger.sh

根据我的收集，我只需要修改 compile 阶段。我该怎么做才能复制 .so 并成功运行Buildpack。

From what I can gather I only need to modify the compile stage. What do I need to do to copy over the .so and have the Buildpack run successfully.

推荐答案

请查看以下 https ：//docs.cloudfoundry.org/devguide/deploy-apps/deploy-app.html#profile

您需要的运行前挂钩。我无法提供更多详细信息，因为您没有提供足够的信息（项目结构，根目录中是否包含.profile等）。

Pre-Runtime Hooks that's you need. I can't give you more details because you haven't provided enough information (project structure, do you have .profile in you root and etc.).

如果需要添加共享库尝试使用 attr_reader：additional_libraries https://github.com/cloudfoundry/java-buildpack/blob/master/docs/extending-droplet.md

If you need to add shared libs try to use attr_reader :additional_libraries https://github.com/cloudfoundry/java-buildpack/blob/master/docs/extending-droplet.md

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