Kubernetes, ingress nginx and too many redirects

Developer help
1

I’m installing a Ghost blog by using the stack Nginx + Kubernetes with Ingress Nginx. My K8s deployment and Nginx config are as below.

The problem is that when accessing the deployed blog, I got the too many redirects error from the browser. And I guess that the root cause is the HTTPS URL is not configured properly in the Nginx ingress but I haven’t got the right way to resolve it. Someone can point me to what’s wrong here?

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: my-blog
spec:
  rules:
  - host: my-blog.com
    http:
      paths:
      - backend:
          service:
            name: my-blog
            port:
              number: 2368
        path: /
        pathType: Prefix
---
apiVersion: v1
kind: Service
metadata:
  labels:
    app: my-blog
  name: my-blog
spec:
  ports:
  - port: 2368
    protocol: TCP
  selector:
    app: my-blog
---
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: my-blog
  name: my-blog
spec:
  replicas: 1
  selector:
    matchLabels:
      app: my-blog
  template:
    metadata:
      labels:
        app: my-blog
    spec:
      containers:
      - env:
        - name: url
          value: https://my-blog.com
        image: ghost:latest
        name: my-blog
        ports:
        - containerPort: 2368
      terminationGracePeriodSeconds: 30

server {
    server_name my-blog.com;

    location / {
        proxy_set_header        X-Real-IP $remote_addr;
        proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header        X-Forwarded-Proto https;
        proxy_set_header        Host $http_host;
        proxy_intercept_errors  on;
        proxy_pass http://k8s_cluster;
    }

    listen 443 ssl;
    ssl_certificate /etc/letsencrypt/live/my-blog.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/my-blog.com/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;

}
server {
    if ($host = my-blog.com) {
        return 301 https://$host$request_uri;
    }

    server_name my-blog.com;

    listen 80;
    return 404;
}