lambda.tf

resource "aws_lambda_function" "default" {
  architectures    = ["x86_64"]
  filename         = "lambda_function.zip"
  function_name    = var.lambda_function_name
  role             = aws_iam_role.iam_role_for_lambda.arn
  handler          = "lambda_function.lambda_handler"
  memory_size      = "128"
  package_type     = "Zip"
  timeout          = "3"
  source_code_hash = filebase64sha256("lambda_function.zip")
  runtime          = "python3.9"

  ephemeral_storage {
    size = "512"
  }

  environment {
    variables = {
      BUCKET_NAME = aws_s3_bucket.data_bucket.id
    }
  }

  tracing_config {
    mode = "PassThrough"
  }
}

resource "aws_lambda_permission" "lambda_permission" {
  statement_id  = "AllowInvokeLambda"
  action        = "lambda:InvokeFunction"
  function_name = var.lambda_function_name
  principal     = "apigateway.amazonaws.com"

  # The /*/*/* part allows invocation from any stage, method and resource path
  # within API Gateway REST API.
  source_arn = "${aws_api_gateway_rest_api.default.execution_arn}/*/*"
}