amazon-web-services - AWS Terraform Lambda 预置并发

Question

我正在尝试获得预配置的并发性以使用我的 API 网关支持的 Lambda 函数。
以下配置不起作用，AWS 似乎完全忽略了预配置的并发性并且会冷启动。

resource "aws_lambda_function" "user_history" {
  publish          = true
  filename         = "../distribution/target/distribution/user-history.jar"
  function_name    = "user-history_${var.user}_${terraform.workspace}"
  role             = aws_iam_role.lambda.arn
  source_code_hash = filebase64sha256("../distribution/target/distribution/user-history.jar")
  runtime          = "java11"
  timeout          = 240
  memory_size      = 512
}

resource "aws_api_gateway_integration" "user_history" {
  rest_api_id             = aws_api_gateway_rest_api.vnm_api.id
  resource_id             = aws_api_gateway_resource.user_history.id
  http_method             = aws_api_gateway_method.user_history.http_method
  integration_http_method = "POST"
  type                    = "AWS_PROXY"
  uri                     = aws_lambda_function.user_history.invoke_arn
}

resource "aws_lambda_provisioned_concurrency_config" "user_history_provisioning" {
  function_name = aws_lambda_function.user_history.function_name
  provisioned_concurrent_executions = 2
  count = var.provisioning == true ? 1 : 0
  qualifier = aws_lambda_function.user_history.version
}

认为它可能与未指定的版本有关我尝试按照此处接受的答案添加配置: Terraform - what is the URI to invoke lambda via alias?

resource "aws_lambda_alias" "user_history_alias"{
  name = "user_history_version"
  description = "Versioned alias"
  function_name = aws_lambda_function.user_history.arn
  function_version = aws_lambda_function.user_history.version
}

data "aws_lambda_function" "user_history" {
  function_name = aws_lambda_function.user_history.function_name
  qualifier = "user_history_version"
}

resource "aws_api_gateway_integration" "user_history" {
  uri = aws_lambda_function.user_history.user_history_version.invoke_arn
}

但现在我收到一个错误，指出 This object has no argument, nested block, or exported attribute named "user_history_version"有谁知道如何让我的预配置并发工作？

Answer 1

您走在正确的轨道上 - 如果您使用不合格的 lambda arn，则在 $LATEST 处引用该版本，而您的预配并发使用最新发布的版本。
您可以通过引用别名 ARN ( aws_lambda_alias. user_history_alias.arn ) 来解决您的问题，或者，如果您不需要其他别名，请引用 aws_lambda_function.user_history.qualified_arn ，这将是最新发布的版本。