Please fix ingress declaration

[valeriitovstyk]

Fix ingress rules

a lot of changed things in ingress declaration. here is an example of proper version of ingress-blue
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: green-ingress
annotations:
nginx.ingress.kubernetes.io/ssl-redirect: "false"
nginx.ingress.kubernetes.io/rewrite-target: /
spec:
ingressClassName: nginx
rules:
- host: myapp.example.com
http:
paths:
- pathType: Prefix
path: /green
backend:
service:
name: myapp-green-service
port:
number: 80