How to run kubernetes ingress for bultiple api - kubernetes

Question

I want to organize my web apis iwth kubernetes ingress tool.
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: myapp-api-ingress
annotations:
kubernetes.io/ingress.class: nginx
# nginx.ingress.kubernetes.io/use-regex: "true"
# nginx.ingress.kubernetes.io/rewrite-target: /$1
spec:
rules:
- host: api.myapp.com
http:
paths:
- pathType: Prefix
path: /catalog
backend:
service:
name: myapp-catalog-service
port:
number: 80
- pathType: Prefix
path: /identity
backend:
service:
name: myapp-identity-service
port:
number: 80
With this configuration, I can access the "api.myapp.com/catalog".
But "api.myapp.com/catalog" is 404 not found. How can fix this configuration?

Answer 1

Seems to be an issue with rewrite annotation that might cause the 404 error. Can you give the below annotation in the yaml and give a try :
nginx.ingress.kubernetes.io/rewrite-target: /$2
As per this rewrite target example , These $2 placeholders can be used as parameters in the rewrite-target annotation. This Target URI where the traffic must be redirected.
As per Kubernetes ingress update your yaml as below example which can be accessed from foo.bar.com/foo from port 4200 and foo.bar.com/bar from port 8080.
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: simple-fanout-example
spec:
rules:
- host: foo.bar.com
http:
paths:
- path: /foo
pathType: Prefix
backend:
service:
name: service1
port:
number: 4200
- path: /bar
pathType: Prefix
backend:
service:
name: service2
port:
number: 8080
Refer to this ingress path matching doc and SO