能否在HerokuCI上缓存Selenium和Chrome Buildpack安装？

Question

能否在HerokuCI上缓存Selenium和Chrome Buildpack安装？

11

我刚开始使用HerokuCI。我有一些Selenium测试，因此在我的app.json中添加了构建包。

{
  "buildpacks": [
    { "url": "heroku/ruby" }
  ],
  "environments": {
    "test": {
      "addons": ["heroku-postgresql:in-dyno", "heroku-redis:in-dyno"],
      "buildpacks": [
        { "url": "heroku/ruby" },
        { "url": "https://github.com/notvad/heroku-buildpack-selenium" },
        { "url": "https://github.com/heroku/heroku-buildpack-chromedriver" },
        { "url": "https://github.com/heroku/heroku-buildpack-google-chrome" }
      ],
      "env": {
        "REDIS_PROVIDER": "REDIS_URL",
        "RAILS_ENV": "test",
        "RACK_ENV": "test",
        "MALLOC_ARENA_MAX": 2,
        "LANG": "en_US.UTF-8",
        "TEST_API": 1
      },
      "scripts": {
        "test-setup": "./bin/setup-cc-test-reporter",
        "test": "./bin/test-with-cc-test-reporter"
      }
    }
  }
}

这些会随着其所有依赖项一起被重新构建。

-----> Selenium app detected
bash: /tmp/buildpacks/b5ae60a477f2ba582d00a4ba23348059d40dea69cea6d982947f7c6afa72d2b8d69252449d43cbcf97a23341fd57300a3fef3224ace95482e1c0deaf8a844e4d/export: No such file or directory
bash: /tmp/buildpacks/b7af5642714be4eddaa5f35e2b4c36176b839b4abcd9bfe57ee71c358d71152b4fd2cf925c5b6e6816adee359c4f0f966b663a7f8649b0729509d510091abc07/export: No such file or directory
-----> Updating apt caches
       Hit:1 http://apt.postgresql.org/pub/repos/apt bionic-pgdg InRelease
       Hit:2 http://archive.ubuntu.com/ubuntu bionic InRelease
       Hit:3 http://archive.ubuntu.com/ubuntu bionic-security InRelease
       Hit:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
       Reading package lists...
-----> Fetching .debs for xserver-xorg-core libgl1-mesa-dri xvfb libglide3 xfs unzip
       Reading package lists...
       Building dependency tree...
       Package xfs is not available, but is referred to by another package.
       This may mean that the package is missing, has been obsoleted, or
       is only available from another source

E: Package 'xfs' has no installation candidate
-----> Installing adwaita-icon-theme_3.28.0-1ubuntu1_all.deb
-----> Installing at-spi2-core_2.28.0-1_amd64.deb

...and so on...

-----> Downloading and installing Selenium
-----> Writing profile script
-----> chromedriver app detected
bash: /tmp/buildpacks/b5ae60a477f2ba582d00a4ba23348059d40dea69cea6d982947f7c6afa72d2b8d69252449d43cbcf97a23341fd57300a3fef3224ace95482e1c0deaf8a844e4d/export: No such file or directory
bash: /tmp/buildpacks/b7af5642714be4eddaa5f35e2b4c36176b839b4abcd9bfe57ee71c358d71152b4fd2cf925c5b6e6816adee359c4f0f966b663a7f8649b0729509d510091abc07/export: No such file or directory
bash: /tmp/buildpacks/f55d0db8af2b8c70f2c0e028ef5430955852d9e4f07a06e333e54eb5264a81b9d1e77d1cc02851b4c7da30f6da47b13959e18a24c630212b899920d05f32a566/export: No such file or directory
-----> Looking up latest chromedriver version...
-----> Downloading chromedriver v2.43...
Archive:  /tmp/chromedriver.zip
  inflating: /app/.chromedriver/bin/chromedriver  
-----> Creating chromedriver export scripts...
-----> Google Chrome app detected
bash: /tmp/buildpacks/b5ae60a477f2ba582d00a4ba23348059d40dea69cea6d982947f7c6afa72d2b8d69252449d43cbcf97a23341fd57300a3fef3224ace95482e1c0deaf8a844e4d/export: No such file or directory
bash: /tmp/buildpacks/b7af5642714be4eddaa5f35e2b4c36176b839b4abcd9bfe57ee71c358d71152b4fd2cf925c5b6e6816adee359c4f0f966b663a7f8649b0729509d510091abc07/export: No such file or directory
bash: /tmp/buildpacks/f55d0db8af2b8c70f2c0e028ef5430955852d9e4f07a06e333e54eb5264a81b9d1e77d1cc02851b4c7da30f6da47b13959e18a24c630212b899920d05f32a566/export: No such file or directory
bash: /tmp/buildpacks/27353aa3b5edb2f8361186206e863f5d481f02805d02f0efdec439f3d30349a4fbdad2951af33a0492023fb0d90d26dafda6fe76f1b2d34f68564a98545f7022/export: No such file or directory
-----> Installing Google Chrome from the stable channel.
-----> Updating apt caches
       Hit:1 http://archive.ubuntu.com/ubuntu bionic InRelease
       Hit:2 http://apt.postgresql.org/pub/repos/apt bionic-pgdg InRelease
       Hit:3 http://archive.ubuntu.com/ubuntu bionic-security InRelease
       Hit:4 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
       Reading package lists...
-----> Fetching .debs for gconf-service

...and so on...

这占用了测试运行时间的大部分。

这些安装包能被缓存吗？

- Schwern

@Bsquare 抱歉，我不确定我理解您的问题。 - Schwern

你有什么消息吗？明天我会开始工作的 ;) - Bsquare ℬℬ

@Bsquare 我已经添加了整个app.json。我会在你的回答下面做出评论。 - Schwern

@Bsquare 抱歉，我不能展示给你这个项目。它是私有的。钩子是 https://kolkrabbi.heroku.com/hooks/github，"application/json"，和 "Send me everything"。它是由 Heroku 设置的。我怀疑它所做的就是通知 Heroku 有一个新的提交要拉取和部署。 - Schwern

@Shrolox 不，我没有。 - Schwern

显示剩余11条评论

2个回答

网页内容由stack overflow 提供, 点击上面的

可以查看英文原文，
原文链接

- Yehuda Schwartz · Answer 1

如果您已按照此处所述启用了缓存，则似乎没有更多可以缓存安装的内容。如果这是一个严重的问题，您可以始终指向从远程仓库克隆的本地软件包以加快速度。

- Bsquare ℬℬ · Answer 2

经过多次搜索和尝试，我带来了好消息。

关键问题在于您的日志文件中出现了错误，例如：

bash: /tmp/buildpacks/b5ae60a477f2ba582d00a4ba23348059d40dea69cea6d982947f7c6afa72d2b8d69252449d43cbcf97a23341fd57300a3fef3224ace95482e1c0deaf8a844e4d/export: No such file or directory

这个自动生成的目录显然是一个缓存目录，当没有固定时会自动生成。

例如，在heroku-buildpack-selenium构建包中可以确认，该构建包在您的app.json文件中定义：

# parse and derive params
BUILD_DIR=$1
CACHE_DIR=$2
LP_DIR=`cd $(dirname $0); cd ..; pwd`

我找到了官方文档，确认了以下内容：

CACHE_DIR的内容将在构建之间保留。您可以将长时间进程（如依赖关系解析）的结果缓存到此处，以加快未来的构建速度。

因此，关键的解决方案是在安装过程中定义CACHE_DIR变量；所以我猜测它要么直接在您的app.json文件中，要么直接在您的GitHub Hook中。

如果您需要进一步帮助，请告诉我。