kubernetes 识别哪个入口/服务请求了pod

twh00eeo  于 2023-06-28  发布在  Kubernetes
关注(0)|答案(1)|浏览(140)

我们有两个入口控制器和两个单独的服务,如下所示,请求相同的部署(POD)。下面是服务定义。

kind: Service
metadata:
  name: service-1
spec:
  selector:
    app: backend
  ports:
    - protocol: TCP
      port: 80
  type: NodePort
kind: Service
metadata:
  name: service-2
spec:
  selector:
    app: backend
  ports:
    - protocol: TCP
      port: 80
  type: NodePort

入口定义如下

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: backend-1
  annotations:
    kubernetes.io/ingress.class: alb
    alb.ingress.kubernetes.io/scheme: internet-facing
    alb.ingress.kubernetes.io/listen-ports: '[{"HTTP": 80}, {"HTTPS":443}]'
    alb.ingress.kubernetes.io/actions.ssl-redirect: '{"Type": "redirect", "RedirectConfig": { "Protocol": "HTTPS", "Port": "443", "StatusCode": "HTTP_301"}}'
    alb.ingress.kubernetes.io/load-balancer-attributes: idle_timeout.timeout_seconds=150
    namespace: staging
spec:
  rules:
    - host: domain.com
      http:
        paths:
          - path: /*
            backend:
              serviceName: service-1
              servicePort: 80
              
              
              
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: backend-2
  annotations:
    kubernetes.io/ingress.class: alb
    alb.ingress.kubernetes.io/scheme: internet-facing
    alb.ingress.kubernetes.io/listen-ports: '[{"HTTP": 80}, {"HTTPS":443}]'
    alb.ingress.kubernetes.io/actions.ssl-redirect: '{"Type": "redirect", "RedirectConfig": { "Protocol": "HTTPS", "Port": "443", "StatusCode": "HTTP_301"}}'
    alb.ingress.kubernetes.io/load-balancer-attributes: idle_timeout.timeout_seconds=150
    namespace: staging
spec:
  rules:
    - host: different_domain_name.com
      http:
        paths:
          - path: /*
            backend:
              serviceName: service-2
              servicePort: 80

当请求到达POD时,是否有一种方法可以识别哪个服务/入口接收并处理了该请求。
理想情况下,我可以在服务或入口级别设置一些env变量,以便我可以在Pod中访问这些变量吗?
任何帮助如何实现这一点将是伟大的,谢谢。

smdncfj3

smdncfj31#

无法将env变量添加到Service或Ingress级别。Service只是一个逻辑集合或绑定的pod发送流量,你不能在那里添加任何东西。对于Ingress,您可以添加头

nginx.ingress.kubernetes.io/configuration-snippet: |
  more_set_headers "Header: Value";

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