我正尝试在predix web-starter应用程序中使用Google Chrome Puppeteer。当我在Windows上本地运行代码时,它可以完美地运行。在我把它推到Predix之后,当我运行包含Puppeteer代码的部分时,它会导致一个错误。似乎有一些缺少的库问题(不确定是什么)。简而言之,我怎样才能让Puppeteer在Predix上运行?
https://www.npmjs.com/package/puppeteer -web-starter:https://github.com/PredixDev/predix-webapp-starter傀儡
木偶表演者代码:
const puppeteer = require('puppeteer');
(async () => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto('https://news.ycombinator.com', {waitUntil: 'networkidle'});
await page.pdf({path: 'hn.pdf', format: 'A4'});
await browser.close();
})();
日志:
2017-11-07T12:40:16.19+0530 [App/0] ERR /home/vcap/app/node_modules/puppeteer/.local-chromium/linux-508693/chrome-linux/chrome: error while loading shared libraries: libX11-xcb.so.1: cannot open shared object file: No such file or directory
2017-11-07T12:40:16.19+0530 [App/0] ERR TROUBLESHOOTING: https://github.com/GoogleChrome/puppeteer/blob/master/docs/troubleshooting.md
2017-11-07T12:40:16.19+0530 [App/0] ERR at Interface.close (readline.js:319:8)
2017-11-07T12:40:16.19+0530 [App/0] ERR at endReadableNT (_stream_readable.js:974:12)
2017-11-07T12:40:16.19+0530 [App/0] ERR Potentially unhandled rejection [3] Error: Failed to launch chrome!
2017-11-07T12:40:16.19+0530 [App/0] ERR at onClose (/home/vcap/app/node_modules/puppeteer/node6/Launcher.js:262:14)
2017-11-07T12:40:16.19+0530 [App/0] ERR at emitNone (events.js:91:20)
2017-11-07T12:40:16.19+0530 [App/0] ERR at Interface.emit (events.js:186:7)
2017-11-07T12:40:16.19+0530 [App/0] ERR at _combinedTickCallback (internal/process/next_tick.js:74:11)
2017-11-07T12:40:16.19+0530 [App/0] ERR at Interface.helper.addEventListener (/home/vcap/app/node_modules/puppeteer/node6/Launcher.js:251:50)
2017-11-07T12:40:16.19+0530 [App/0] ERR at Socket.onend (readline.js:106:10)
2017-11-07T12:40:16.19+0530 [App/0] ERR at emitNone (events.js:91:20)
2017-11-07T12:40:16.19+0530 [App/0] ERR at Socket.emit (events.js:186:7)
2017-11-07T12:41:15.21+0530 [RTR/2] OUT puppeter-arjun-app.run.aws-usw02-pr.ice.predix.io - [2017-11-07T07:10:16.196+0000] "GET /puppeteer HTTP/1.1" 502 0 67 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.75 Safari/537.36" "10.72.11.93:2263" "10.72.2.213:61322" x_forwarded_for:"-" x_forwarded_proto:"http" vcap_request_id:"7d0f3007-914a-42d4-536d-b94eb8d2fb6c" response_time:59.022647288 app_id:"02063159-96d9-43c5-a3e9-77f4e72339f4" app_index:"-" x_b3_traceid:"4f11f468be4b6817" x_b3_spanid:"4f11f468be4b6817" x_b3_parentspanid:"-"
2017-11-07T12:41:15.21+0530 [RTR/2] OUT
发布于 2018-08-03 05:58:48
最近发现,使用cloudfoundry/apt-buildpack和cloudfoundry/nodejs-buildpack,可以通过将共享库包含在apt.yml中来安装它们。然而,predix不允许多构建包推送,所以我尝试使用cloudfoundry/multi-buildpack,但没有成功,原因不明。我解决这个问题的方法是创建一个定制的构建包,从apt获取代码,将其放到nodejs buildpack上,然后在manifest.yml上包含git仓库url。这是我的custom buildpack。
发布于 2017-11-12 08:02:42
这是因为Chrome可能需要安装更多的软件包才能在该主机上正常工作。有一个很好的故障排除文档here,假设您对环境的配置有一些控制。
其他选择是使用另一个为你运行Chrome的服务(你可以在AWS或Google Cloud上使用)。这是一个相当复杂的过程,这就是为什么我写了https://browserless.io,它是交钥匙的,支持木偶师0.11.0和0.12.0。
希望这能让你走上正确的道路,祝你好运!
发布于 2017-11-14 01:40:40
看起来puppeteer正在尝试使用一个“共享库”,而这个库是缺失的,或者是您无权访问的。在Predix Foundry环境中,您对服务器操作系统的访问非常有限。您只允许使用容器内部的资源,这使得伸缩很容易发生。
你的目标是什么?正在尝试运行浏览器测试?你可以试试selenium with Sauce Labs,或者Travis。
https://stackoverflow.com/questions/47219934
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