[Bug]: nginx.org/rewrites not support regex with mergeable-ingress-type

[zhigang-guo]

Version

3.7.0

What Kubernetes platforms are you running on?

AKS Azure

Steps to reproduce

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: "nginx-ingress-${ENVIRONMENT}-master"
  namespace: ${NAMESPACE}
  annotations:
    nginx.org/mergeable-ingress-type: "master"
    nginx.org/hsts: "true"
    nginx.org/hsts-max-age: "31536000"
    nginx.org/server-tokens: "false"
    nginx.org/hsts-include-subdomains: "true"
    # nginx.org/location-snippets: |
    #   add_header Set-Cookie "Path=/${PROJECT_CODE}-${ENVIRONMENT}; HttpOnly; Secure; SameSite=Strict";
    #   add_header Cache-Control "no-transform";
    #   add_header Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'; style-src 'self' 'unsafe-inline' 'unsafe-eval'; connect-src 'self'; font-src 'self'; base-uri 'self'; object-src 'none'; frame-src 'self'; img-src 'self' data:; manifest-src 'self'; media-src 'self'";
    #   add_header Content-Security-Policy upgrade-insecure-requests;
    nginx.org/server-snippets: |
      error_page 404 /404.html;
      location = /404.html {
        internal;
        alias /usr/share/nginx/html/custom-404.html;
      }
spec:
  ingressClassName: "nginx-ingress-${ENVIRONMENT}"
  tls:
    - hosts:
        - "test.com"
      secretName: "cert-${ENVIRONMENT}"
  rules:
    - host: "test.com"
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: "nginx-ingress-${ENVIRONMENT}-testapp-minion"
  namespace: ${NAMESPACE}
  annotations:
    nginx.org/mergeable-ingress-type: "minion"
    nginx.org/rewrites: "serviceName=test-service rewrite=/testapp$2"
spec:
  ingressClassName: "nginx-ingress-${ENVIRONMENT}"
  rules:
    - host: "test.com"
      http:
        paths:
          - path: "/app/test/api(/|$)(.*)"
            pathType: Prefix
            backend:
              service:
                name: test-service
                port:
                  number: 3001

Applied above config. but got error "annotations.nginx.org/rewrites: Invalid value: "serviceName=test-service rewrite=/testapp$2": path must start with '/' and must not include any whitespace character, '{', '}' or '$': '/testapp$2'"

[github-actions]

Hi @zhigang-guo thanks for reporting!

Be sure to check out the docs and the Contributing Guidelines while you wait for a human to take a look at this 🙂

Cheers!

[jjngx]

@zhigang-guo this is expected behavior. The rewrites annotation example: link.