Does AWS Lambda NodeJS runtime have python installed?

Question

Does AWS NodeJS 14.x lambda runtime have python installed? I'm using a custom layer with AWS-CLI but it can't use python.

If I have to include python3 into the AWS-CLI Layer, how can I copy the python3 files needed? I think we need to compile python3 so it uses custom lib paths.

Luke Skywalker · Accepted Answer · 2021-11-21 12:02:42Z

1

Try this;

Create your own docker image which has Python and NodeJs installed and well it's a linux image so you have flexibility to do anything, then push the image to ECR and create the lambda function from that image.

read this: https://docs.aws.amazon.com/lambda/latest/dg/images-create.html

answered Nov 21, 2021 at 12:02

Luke Skywalker

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5 Comments

user630702 Over a year ago

Does it cost us any extra than just running aws_lambda function?

Luke Skywalker Over a year ago

the lambda doesn't cost any extra however I think you'll get charged when you push to ECR and that's almost nothing.

user630702 Over a year ago

Is there a dockerfile example somewhere? I'm not sure what the CMD or anything needs to be passed for it to work properly. I can set entrypoint or CMD to node. Maybe just use an of example of nodejs image dockerfile ?

user630702 Over a year ago

Seems like there is a example in the documentation. Testing it

Luke Skywalker Over a year ago

Well as I said you have the full flexibility as if it's your own computer, you can either pull an alpine linux image and then install both nodejs and python on it or pull a nodejs runtime image and then install python in dockerfile or vice versa, depending on what you exactly want. you can put the CMD to CMD ["index.main"], with an index.js file and a main function in it. that main function will be executed each time you call the lambda, you also have python installed on the linux image, so inside your nodejs operation you run a python script as well or anything you want.

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