在AWS上，每天运行一次AWS CLI命令 [英] On AWS, run an AWS CLI command daily

问题描述

我有一个AWS CLI调用(在这种情况下，要启动配置的EMR集群以执行一些步骤然后关闭)，但是我不确定如何每天运行它.

I have an AWS CLI invocation (in this case, to launch a configured EMR cluster to do some steps and then shut down) but I'm not sure how to go about running it daily.

我想做到这一点的一种方法是运行cron作业的EC2微型实例，或启动该命令的微型计算机中的ECS任务，但似乎一切都太过分了.看来在Lambda中也可以做到这一点，但从我所知道的来看，这很笨拙.

I guess one way to do it is an EC2 micro instance running a cron job, or an ECS task in a micro that launches the command, but that all seems like it might be overkill. It looks like there's also a way to do it in Lambda, but rom what I can tell it'd be kludgy.

这不一定是一个好的长期解决方案，只有在我能正确执行之前(数据管道)，一些合适的方法才可以正常工作.

This doesn't have to be a good long-term solution, something that's suitable until I can do it right (Data Pipelines) would work just fine.

建议?

推荐答案

如果不是严格要求使用AWS CLI，则可以使用其中一种AWS开发工具包来以编程方式调用Lambda.

If it is not a strict requirement to use the AWS CLI, you can use one of the AWS SDK instead to programmatically invoke Lambda.

• 使用 cron 安排CloudWatch规则
• 配置后，CloudWatch Rules将触发Lambda函数
• 使用一个受支持的SDK(例如

• Schedule a CloudWatch Rules using cron
• When configured, the CloudWatch Rules will trigger a Lambda function
• Implement a Lambda function that calls EMR using one of the supported SDKs (e.g. the EMR class in the AWS JavaScript SDK)
• Make sure that you have the IAM configuration in place

完整示例可在使用CloudWatch Events计划AWS Lambda函数中找到

Kludgy?是的，需要进行配置，但是如果考虑到启动EC2/ECS所需的工作量(并确保在出现故障时重新启动)，我会说它已经稳定了.

Kludgy? Yes, configuration is needed, however if you take into account the amount of work required to launch EC2 / ECS (and make sure that it re-launches in the event of failure), I'd say it evens out.

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