ELB 健康检查命中错误的端点

Question

我的 .NET Core Elastic beanstalk 应用程序很健康，但是当我检查日志时，我看到以下内容：

10.3.12.142 - - [06/Feb/2022:17:54:53 +0000] "GET / HTTP/1.1" 404 0 "-" "ELB-HealthChecker/2.0" "10.3.2.20"
10.3.11.145 - - [06/Feb/2022:17:54:57 +0000] "GET / HTTP/1.1" 404 0 "-" "ELB-HealthChecker/2.0" "10.3.1.114"
10.3.11.145 - - [06/Feb/2022:17:55:07 +0000] "GET /_system/health HTTP/1.1" 200 232 "-" "ELB-HealthChecker/2.0" "-"
10.3.12.142 - - [06/Feb/2022:17:55:07 +0000] "GET /_system/health HTTP/1.1" 200 232 "-" "ELB-HealthChecker/2.0" "-"
10.3.11.145 - - [06/Feb/2022:17:55:07 +0000] "GET / HTTP/1.1" 404 0 "-" "ELB-HealthChecker/2.0" "10.3.1.114"
10.3.11.145 - - [06/Feb/2022:17:55:22 +0000] "GET /_system/health HTTP/1.1" 200 237 "-" "ELB-HealthChecker/2.0" "-"
10.3.12.142 - - [06/Feb/2022:17:55:22 +0000] "GET /_system/health HTTP/1.1" 200 237 "-" "ELB-HealthChecker/2.0" "-"

/_system/health 是真正的健康端点，但我不明白为什么 ELB 会点击/ 而不仅仅是/_system/health，这当然会导致应用程序预期的 404。

我有以下用于健康检查的 terraform 配置，但我不使用 .ebextensions

setting {
    namespace = "aws:elasticbeanstalk:environment:process:default"
    name      = "HealthCheckPath"
    value     = "/_system/health"
  }

  setting {
    namespace = "aws:elasticbeanstalk:application"
    name      = "Application Healthcheck URL"
    value     = "/_system/health"
  }

编辑 1

在我将运行状况检查路径更改为/health（感谢@Marcin，我注意到ELB-HealthChecker 仍在点击/

10.3.11.145 - - [07/Feb/2022:08:35:08 +0000] "GET /health HTTP/1.1" 200 227 "-" "ELB-HealthChecker/2.0" "-"
10.3.12.142 - - [07/Feb/2022:08:35:08 +0000] "GET /health HTTP/1.1" 200 232 "-" "ELB-HealthChecker/2.0" "-"
10.3.12.142 - - [07/Feb/2022:08:35:13 +0000] "GET / HTTP/1.1" 404 0 "-" "ELB-HealthChecker/2.0" "10.3.2.20"

Answer 1

/_system/health 不受支持。 valid paths 是：

/ (HTTP GET to root path)

/health

HTTPS:443/

HTTPS:443/health