Nginx pod with readiness probe using path that is 302 redirected to another path

nginx.sh

kubectl create ns nginx-test

kubectl apply --namespace nginx-test -f - << EOF
apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-config
data:
  default.conf: |
    server {
      absolute_redirect off;
      location ~ ^/health$ {
        add_header Content-Type text/plain;
        return 200 'healthy';
      }
      rewrite ^/old$ /health redirect;
    }
---
apiVersion: v1
kind: Pod
metadata: 
  name: nginx
spec:
  containers:
  - name: nginx
    image: nginx
    volumeMounts:
    - name: config
      mountPath: /etc/nginx/conf.d
    readinessProbe:
      httpGet:
        path: /old
        port: 80
  volumes:
  - name: config
    configMap:
      name: nginx-config
      items:
      - key: default.conf
        path: default.conf
EOF

kubectl wait --for=condition=Ready pod/nginx

kubectl describe pod nginx | grep Readiness