kubernetes ingress with TLS

• Create self signed cert

openssl req \
    -new \
    -newkey rsa:4096 \
    -days 365 \
    -nodes \
    -x509 \
    -subj "/C=US/ST=Denial/L=Springfield/O=Dis/CN=example.com" \
    -keyout example.com.key \
    -out example.com.cert

• Create k8 certificate using above cert

kubectl create secret tls example-cert \
  --key="example.com.key" \
  --cert="example.com.cert"

• ingress.yaml file

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  annotations:
    kubernetes.io/ingress.class: "haproxy"
    haproxy.org/rewrite-target: "/"
  name: prometheus-ingress
spec:
  rules:
  - host: prometheus.example.com
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: prometheus-service
            port:
              number: 9090
 tls:
 - secretName: example-cert
   hosts:
   - prometheus.example.com