在负载均衡ALB ingress中,可以通过添加注解(annotation)来实现一些高级功能,以下是使用注解的一些示例:
1. 自定义HTTP头部
通过添加注解,可以自定义HTTP请求的头部信息,添加一个名为XCustomHeader
的自定义头部:
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
通过添加注解,可以实现将HTTP请求重定向到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. 自定义健康检查路径和状态码
通过添加注解,可以自定义健康检查的路径和状态码。
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中使用注解实现自定义HTTP头部、SSL重定向和自定义健康检查路径及状态码。
分享标题:请问在负载均衡ALBingress里可以通过annotation实现吗?
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