如何使用NodeJS在AWS Lambda上运行PhantomJS [英] How do I run PhantomJS on AWS Lambda with NodeJS
问题描述
在互联网上其他任何地方都找不到有效的答案之后,我正在提交此问与答"自己的教程
如何从AWS Lambda
上的NodeJS
脚本运行一个简单的PhantomJS
进程?我的代码在本地计算机上运行良好,但是尝试在Lambda上运行时遇到了其他问题.
How can I get a simple PhantomJS
process running from a NodeJS
script on AWS Lambda
? My code works fine on my local machine, but I run into different problems trying to run it on Lambda.
推荐答案
这不再起作用. 这是显而易见的解决方案.
这是一个简单的PhantomJS
过程的完整代码示例,该过程以NodeJS
child_process
形式启动. 在github上也可以使用.
Here is a complete code sample of a simple PhantomJS
process, which is launched as a NodeJS
child_process
. It is also available on github.
index.js
var childProcess = require('child_process');
var path = require('path');
exports.handler = function(event, context) {
// Set the path as described here: https://aws.amazon.com/blogs/compute/running-executables-in-aws-lambda/
process.env['PATH'] = process.env['PATH'] + ':' + process.env['LAMBDA_TASK_ROOT'];
// Set the path to the phantomjs binary
var phantomPath = path.join(__dirname, 'phantomjs_linux-x86_64');
// Arguments for the phantom script
var processArgs = [
path.join(__dirname, 'phantom-script.js'),
'my arg'
];
// Launc the child process
childProcess.execFile(phantomPath, processArgs, function(error, stdout, stderr) {
if (error) {
context.fail(error);
return;
}
if (stderr) {
context.fail(error);
return;
}
context.succeed(stdout);
});
}
phantom-script.js
phantom-script.js
var system = require('system');
var args = system.args;
// Example of how to get arguments passed from node script
// args[0] would be this file's name: phantom-script.js
var unusedArg = args[1];
// Send some info node's childProcess' stdout
system.stdout.write('hello from phantom!')
phantom.exit();
要获取适用于Amazon Linux计算机的PhantomJS二进制文件,请转到 PhantomJS Bitbucket页面并下载phantomjs-1.9.8-linux-x86_64.tar.bz2
.
To get a PhantomJS binary that works with Amazon's Linux machine's, go to the PhantomJS Bitbucket Page and download phantomjs-1.9.8-linux-x86_64.tar.bz2
.
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