是否可以在Amazon Lightail实例上运行cron作业？ [英] Is it possible to have cron job running on Amazon lightsail instance?
问题描述
我想在Amazon Lightsail实例上设置定期作业，但是我找不到关于它的信息-仅关于Amazon EC2。
I would like to set up periodic jobs on an Amazon Lightsail instance, but I can find no information on it - only for Amazon EC2.
是否可以在lightail实例上发布cron作业，还是我需要更改为EC2？
Is it possible to issue cron jobs on a lightsail instance, or do I need to change to EC2?
推荐答案
要回答我自己的问题，只需8小时后：可以在Amazon Lightsail实例上发布cron作业
To answer my own question, just 8 hours later: It IS possible to issue cron jobs on Amazon Lightsail instances
以下是运行PHP脚本的有效示例：
Here is a working example of running a PHP script:
- 通过记录到您的Lightsail实例进入您的lightail帐户，然后单击使用SSH连接或使用SSH客户端（例如PuTTY）。
-
在/ home中创建一个名为 projects的文件夹/ bitnami /，并创建一个名为Hello World的简单.php文件：
- Connect to your Lightsail instance either by logging in to your lightsail account and clicking "Connect using SSH" or using a SSH client, such as PuTTY.
Create a folder called 'projects' in /home/bitnami/ and create a simple .php file called Hello World:
<?php print("Hello World"); ?>
使用命令 crontab -e 要访问文档，您可以在其中添加将作为计划的cron作业的行。
Use command crontab -e to access a document, from where you can add lines that will be your scheduled cron jobs.
在文档上添加两行并添加换行符：
Append two lines to the document AND ADD A NEWLINE:
PATH=/usr/bin:/bin:/opt/bitnami/php/bin:
* * * * * php -f /home/bitnami/projects/HelloWorld.php > /home/bitnami/projects/Out.put
第1行添加了php到cron路径（Cron看到的路径与环境变量中给出的路径不同。键入：env并在控制台中按Enter键）。要查看为cron提供了哪些env变量，请将第2行替换为： * * * * * env> /tmp/env.output 并查看文件。 第2行是计划时间表。星号表示：每小时，每天，每月，每年的每一分钟都要执行此操作。在Google上搜索：)并将其输出到名为 Out.put 的文件。
Line 1 adds php to the cron path (Cron sees a different path than what is given in the environment variables. Type: env and hit enter in the console). To see which env variables are given to cron replace line 2 with: * * * * * env > /tmp/env.output and look in the file. Line 2 is the cron schedule. The asterisks means: Do this every minute of every hour, day, month, year. Search Google for this :) And will output to a file called Out.put.
等待1分钟，然后看到 Out.put 已创建，并且包含 Hello World
Wait 1 minute and see that Out.put has been created and contains the magic words of Hello World
如果您在执行cron作业时遇到问题，请查看此故障排除指南： https://stackoverflow.com/tags/cron/info
If you are having problems with cron jobs not working, check out this troubleshooting guide: https://stackoverflow.com/tags/cron/info
希望这会有所帮助。如果没有，请在投票之前发表评论！
Hope this helps. If it does not, post a comment before downvoting!
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