resource "aws_lambda_layer_version" "lambda_layer" §§
{
  filename   = "lambda_layer_payload.zip"
  layer_name = "lambda_layer_name"

  compatible_runtimes = ["nodejs8.10"]
}
--------------------
$ aws lambda create-function \
  --function-name bashFunction \
  --role bashFunctionRole \
  --handler index.handler \
  --runtime provided \
  --layers arn:aws:lambda:<region>:744348701589:layer:bash:8 \
  --zip-file fileb://function.zip
--------------------
$ zip list_buckets.zip index.sh
-----------------
$ aws iam create-role --role-name bashFunctionRole --assume-role-policy-document file://trust.json
-------------
$ aws iam attach-role-policy --policy-arn arn:aws:iam::XXXXX:policy/bashFunctionPolicy --role-name bashFunctionRole
-------------
$ chmod +x run.sh
----------