main.tf

variable release_tag {
  default = "aws-dd-forwarder-3.12.0"
}

variable lambda_role {}

locals {
  ddf_dl_path = format("%s/%s.zip", path.cwd, var.release_tag)
}

provider github {
  anonymous = true
  individual =  true
}

data github_release dd_forwarder {
  repository  = "datadog-serverless-functions"
  owner       = "DataDog"
  retrieve_by = "tag"
  release_tag = var.release_tag
}

data http dd_forwarder {
  url = data.github_release.dd_forwarder.asserts_url

  request_headers = {
    Accept = "application/json"
  }
}

resource null_resource dd_forwarder {
  triggers = {
    timestamp = timestamp()
  }

  provisioner local-exec {
    command = "wget $dl_url -O $dl_path"
    environment = {
      dl_url = jsondecode(data.http.dd_forwarder.body)[0]["browser_download_url"]
      dl_path = local.ddf_dl_path
    }
  }
}

provider aws {
  region  = "ap-northeast-1"
}


resource aws_lambda_function dd_forwarder {
  filename      = local.ddf_dl_path
  function_name = "lambda_function_name"
  handler       = "lambda_function.lambda_handler"
  role          = var.lambda_role
  runtime = "python3.7"

  depends_on = [ null_resource.dd_forwarder ]
}