Nginx Configuration in Kubernetes for Rails - ruby-on-rails

Question

I have deployed rails application in Kubernetes and Currently it is running in 10.x.x.x:8072.I need to implement in https and proxy forward from 10.x.x.x:8072 to url device.application.net. Below the nginx configuration I am using but proxy forward is not happening. Nginx POD is running without any issues. I have created Nginx load balancer service "nginx-service" but I haven't defined this service name in anywhere.Where to define this service name in below configurations. Is there any thing I am missing out?
nginx.conf file
upstream docker {
server 10.x.x.x:8072;
}
server {
# define your domain
server_name device-app.application.net;
# define the public application root
listen 80;
listen 443 ssl;
ssl_protocols TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_session_timeout 10m;
ssl_session_cache shared:SSL:10m;
ssl_session_tickets off; # Requires nginx >= 1.5.9
ssl_stapling on; # Requires nginx >= 1.3.7
ssl_stapling_verify on; # Requires nginx => 1.3.7
add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
ssl_certificate /etc/nginx/ssl_certs/device-app.application.net.crt;
ssl_certificate_key /etc/nginx/ssl_certs/device-app.application.net.key;
proxy_set_header Host device-app.application.net;
proxy_set_header X-Forwarded-Proto https;
root /DEVICEAPP/public;
index index.html;
# define where Nginx should write its logs
access_log /DEVICEAPP/log/nginx.access.log;
error_log /DEVICEAPP/log/nginx.error.log;
# send non-static file requests to the app server
location / {
if ($scheme = 'http') {
rewrite ^ https://$http_host$request_uri? permanent;
}
proxy_pass http://docker;
}
}
Docker file
FROM nginx
# Install dependencies
RUN apt-get update -qq && apt-get -y install apache2-utils
# establish where Nginx should look for files
ENV RAILS_ROOT /DEVICE_APP
# Set our working directory inside the image
WORKDIR $RAILS_ROOT
# create log directory
RUN mkdir log
# copy over static assets
COPY public public/
# Copy Nginx config template
COPY docker/web/nginx.conf /tmp/docker.nginx
# Copy SSL Certs
COPY device-app.application.net.crt /etc/nginx/ssl_certs/device-app.application.net.crt
# Copy private key
COPY device-app.application.net.key /etc/nginx/ssl_certs/device-app.application.net.key
# substitute variable references in the Nginx config template for real values from the environment
# put the final config in its place
RUN envsubst '$RAILS_ROOT' < /tmp/docker.nginx > /etc/nginx/conf.d/default.conf
Nginx Load balancer
apiVersion: v1
kind: Service
metadata:
namespace: device-app
name: nginx-service
spec:
type: NodePort
ports:
- protocol: TCP
port: 80
name: http
targetPort: 80
selector:
app: device-app-nginx