Automate AWS Lambda Function Creation with AWS CLI Scripts

Here is an AWS CLI script that creates an AWS Lambda function:

First, we need to create IAM Role to attach Lambda Function

AWS CLI script to create AWS IAM Role

aws iam create-role --role-name Lambda_Role --assume-role-policy-document '{"Version": "2012-10-17", "Statement": [{"Effect": "Allow", "Principal": {"Service": "lambda.amazonaws.com"}, "Action": "sts:AssumeRole"}]}' --query "Role.Arn"

Output

"arn:aws:iam::xxxxxxxxxxxx:role/Lambda_Role"

Lambda Function AWS CLI Script

aws lambda create-function
--function-name Lambda_function
--runtime nodejs12.x
--role arn:aws:iam::xxxxxxxxxxx:role/Lambda_Role
--handler "index.handler"
--zip-file fileb://function.zip
--region us-east-1

Output

{ "FunctionName": "Lambda_function", "FunctionArn": "arn:aws:lambda:us-east-1:xxxxxxxxxxx:function:Lambda_function", "Runtime": "nodejs12.x", "Role": "arn:aws:iam::xxxxxxxxxxx:role/Lambda_Role", "Handler": "index.handler", "CodeSize": 20272963, "Description": "", "Timeout": 3, "MemorySize": 128, "LastModified": "2023-02-11T14:51:04.540+0000", "CodeSha256": "w+RpB/YhWdBZIzquIRNkem48Z0sJ1KG47unN69C2nIU=", "Version": "$LATEST", "TracingConfig": { "Mode": "PassThrough" }, "RevisionId": "85bcd9fd-3aa8-4038-8da4-5789ff4ea0f6", "State": "Pending", "StateReason": "The function is being created.", "StateReasonCode": "Creating", "PackageType": "Zip", "Architectures": [ "x86_64" ], "EphemeralStorage": { "Size": 512 }, "SnapStart": { "ApplyOn": "None", "OptimizationStatus": "Off" } }