1.配置项
2.实验
!!! attention Starting in Version 0.22.0, ingress definitions using the annotation nginx.ingress.kubernetes.io/rewrite-target are not backwards compatible with previous versions. In Version 0.22.0 and beyond, any substrings within the request URI that need to be passed to the rewritten path must explicitly be defined in a capture group.
!!! note Captured groups are saved in numbered placeholders, chronologically, in the form $1, $2 ... $n. These placeholders can be used as parameters in the rewrite-target annotation.
Create an Ingress rule with a rewrite annotation:
2.1官方使用
echo '
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
annotations:
nginx.ingress.kubernetes.io/rewrite-target: /$2
name: rewrite
namespace: default
spec:
rules:
- host: rewrite.bar.com
http:
paths:
- path: /something(/|$)(.*)
pathType: Prefix
backend:
service:
name: http-svc
port:
number: 80
' | kubectl create -f -In this ingress definition, any characters captured by (.*) will be assigned to the placeholder $2, which is then used as a parameter in the rewrite-target annotation.
For example, the ingress definition above will result in the following rewrites:
rewrite.bar.com/something rewrites to rewrite.bar.com/
rewrite.bar.com/something/ rewrites to rewrite.bar.com/
rewrite.bar.com/something/new rewrites to rewrite.bar.com/new
2.2我的使用
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ingress-lys
namespace: d1ad16990e484ab7838f5922e1d4b78d
annotations:
nginx.ingress.kubernetes.io/rewrite-target: "/$1"
spec:
rules:
- host: foo.lys.com
http:
paths:
- path: /test/(.*)$
pathType: Prefix
backend:
service:
name: lys-test-service
port:
number: 8081
2.3 参考
https://github.com/kubernetes/ingress-nginx/blob/main/docs/examples/rewrite/README.md
