Lambda

Code

data "aws_iam_policy_document" "lambda_assume_role" {
  statement {
    effect = "Allow"
    principals {
      type        = "Service"
      identifiers = ["lambda.amazonaws.com"]
    }
    actions = ["sts:AssumeRole"]
  }
}

data "aws_iam_policy_document" "lambda_policy" {
  statement {
    effect = "Allow"
    actions = [
      "ec2:*",
      "config:PutEvaluations",
      "logs:CreateLogStream",
      "logs:CreateLogGroup",
      "logs:PutLogEvents"
    ]
    resources = ["*"]
  }

  statement {
    effect = "Allow"
    actions = [
      "logs:CreateLogStream",
      "logs:CreateLogGroup",
      "logs:PutLogEvents"
    ]
    resources = ["arn:aws:logs:*:*:*"]
  }
}


resource "aws_iam_role" "lambda" {
  name               = "Lambda-role"
  assume_role_policy = data.aws_iam_policy_document.lambda_assume_role.json
}

resource "aws_iam_role_policy" "lambda_policy" {
  name   = "LambdaPolicy"
  role   = aws_iam_role.lambda.id
  policy = data.aws_iam_policy_document.lambda_policy.json
}

data "archive_file" "lambda" {
  type        = "zip"
  source_file = "./src/lambda_function.py"
  output_path = "lambda_function_payload.zip"
}

resource "aws_lambda_function" "lambda" {
    filename = "lambda_function_payload.zip"
    function_name = "wsi-sg-function"
    role = aws_iam_role.lambda.arn
    handler = "lambda_function.lambda_handler"
    timeout = "5"
    source_code_hash = data.archive_file.lambda.output_base64sha256
    runtime = "python3.12"
}

resource "aws_lambda_permission" "permission" {
  action        = "lambda:InvokeFunction"
  function_name = aws_lambda_function.lambda.arn
  principal     = "config.amazonaws.com"
  statement_id  = "AllowExecutionFromConfig"
}
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