Setting "Cache-Control" header with Kubernetes ingress - kubernetes

Question

I have a kubernetes cluster running in AWS and am trying to modify the Cache Controller headers via the kubernetes ingress as such:
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: example-ingress-lab-static
namespace: lab
annotations:
ingress.kubernetes.io/rewrite-target: /$1
ingress.kubernetes.io/enable-cors: "true"
ingress.kubernetes.io/cors-allow-methods: GET, POST,PUT, OPTIONS, DELETE, HEAD, PATCH
ingress.kubernetes.io/cors-allow-headers: >-
Accept-Charset, Accept-Encoding, Access-Control-Request-Headers, Access-Control-Request-Method, Authorization,
Cache-Control, Connection, Content-Encoding, Content-Type, Content-Length, DNT, Date, Host, If-Modified-Since,
Keep-Alive, Origin, Referer, Server, TokenIssueTime, Transfer-Encoding, User-Agent, Vary, X-CustomHeader, X-Requested-With,
password, username, x-request-id, x-ratelimit-app, x-auth-id, x-auth-key, x-guest-token, X-HTTP-Method-Override,
x-oesp-username, x-oesp-token, x-cus, x-dev, X-Client-Id, X-Device-Code, X-Language-Code, UserRole, x-session-id, x-entitlements-token
ingress.kubernetes.io/configuration-snippet: |
more_set_headers 'Access-Control-Allow-Origin:$origin';
ingress.kubernetes.io/proxy-buffering: "on"
ingress.kubernetes.io/proxy-buffer-size: "2048k"
ingress.kubernetes.io/server-snippet: |
chunked_transfer_encoding off;
location ((https|http):\/\/.*\/test-service\/images\/.*\/imageName.*) {
more_set_headers 'Cache-Control: public, max-age=14400';
}
spec:
rules:
- host: static-url-lab.lab.cdn.example.com
http:
paths:
- path: /test-service/(.*)
backend:
serviceName: test-service
servicePort: 80
However this does not seem to be working. When I curl a resource matching that pattern I get the default values back:
# Example curl - not exact
curl -v "https://static-url-lab.lab.cdn.example.com/test-service/intent/test/image_name" -o /dev/null 2>&1 grep -E "(Cache-Control: max|X-Cache)"
< Cache-Control: max-age=172800, public
As far as I can tell the regex should be matching, but no change is taking place, what am I missing?

Answer 1

Try something like this :
working for me
annotations:
kubernetes.io/ingress.class: nginx
nginx.ingress.kubernetes.io/configuration-snippet: |
if ($request_uri ~* \.(js|css|gif|jpe?g|png)) {
expires 1M;
add_header Cache-Control "public";
}
nginx.ingress.kubernetes.io/proxy-body-size: 50m
nginx.ingress.kubernetes.io/proxy-read-timeout: "1800"
nginx.ingress.kubernetes.io/proxy-send-timeout: "1800"