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請問在負(fù)載均衡ALBingress里可以通過annotation實(shí)現(xiàn)嗎?
在負(fù)載均衡ALB ingress中,可以通過添加注解(annotation)來實(shí)現(xiàn)一些高級功能,以下是使用注解的一些示例:

1. 自定義HTTP頭部
通過添加注解,可以自定義HTTP請求的頭部信息,添加一個(gè)名為XCustomHeader的自定義頭部:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: myingress
annotations:
alb.ingress.kubernetes.io/scheme: internetfacing
alb.ingress.kubernetes.io/listenports: '[{"HTTP": 80}, {"HTTPS":443}]'
alb.ingress.kubernetes.io/actions.sslredirect: '{"Type": "redirect", "RedirectConfig": { "Protocol": "HTTPS", "Port": "443", "StatusCode": "HTTP_301"}}'
alb.ingress.kubernetes.io/headers: '{"XCustomHeader": "myvalue"}'
spec:
ingressClassName: alb
rules:
http:
paths:
path: /
pathType: Prefix
backend:
service:
name: myservice
port:
number: 80
2. SSL重定向
通過添加注解,可以實(shí)現(xiàn)將HTTP請求重定向到HTTPS。
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: myingress
annotations:
alb.ingress.kubernetes.io/scheme: internetfacing
alb.ingress.kubernetes.io/listenports: '[{"HTTP": 80}, {"HTTPS":443}]'
alb.ingress.kubernetes.io/actions.sslredirect: '{"Type": "redirect", "RedirectConfig": { "Protocol": "HTTPS", "Port": "443", "StatusCode": "HTTP_301"}}'
spec:
ingressClassName: alb
rules:
http:
paths:
path: /
pathType: Prefix
backend:
service:
name: myservice
port:
number: 80
3. 自定義健康檢查路徑和狀態(tài)碼
通過添加注解,可以自定義健康檢查的路徑和狀態(tài)碼。
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: myingress
annotations:
alb.ingress.kubernetes.io/scheme: internetfacing
alb.ingress.kubernetes.io/listenports: '[{"HTTP": 80}, {"HTTPS":443}]'
alb.ingress.kubernetes.io/healthcheckpath: "/custompath"
alb.ingress.kubernetes.io/healthcheckfailurethreshold: '3'
alb.ingress.kubernetes.io/healthythresholdcount: '3'
alb.ingress.kubernetes.io/healthythresholdtime: '5'
alb.ingress.kubernetes.io/successcodes: '200,201'
spec:
ingressClassName: alb
rules:
http:
paths:
path: /
pathType: Prefix
backend:
service:
name: myservice
port:
number: 80
以上示例展示了如何在ALB ingress中使用注解實(shí)現(xiàn)自定義HTTP頭部、SSL重定向和自定義健康檢查路徑及狀態(tài)碼。
文章題目:請問在負(fù)載均衡ALBingress里可以通過annotation實(shí)現(xiàn)嗎?
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