How to deploy custom nginx app on kubernetes? - kubernetes

Question

I want to deploy a custom nginx app on my kubernetes cluster.
I have three raspberry in a cluster. My deplotment file looks as follows
kubepodDeploy.yaml
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: my-nginx
spec:
selector:
matchLabels:
run: my-nginx
replicas: 2
template:
metadata:
labels:
run: my-nginx
spec:
containers:
- name: my-nginx
image: privateRepo/my-nginx
ports:
- containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
name: my-nginx
labels:
run: my-nginx
spec:
type: NodePort
ports:
- port: 8080
targetPort: 80
protocol: TCP
name: http
- port: 443
protocol: TCP
name: https
selector:
run: my-nginx
How can I deploy it so that I can access my app by ipadress. Which service type do I need?
my service details are:
kubectl describe service my-nginx ~/Project/htmlBasic
Name: my-nginx
Namespace: default
Labels: run=my-nginx
Annotations: Selector: run=my-nginx
Type: NodePort
IP: 10.99.107.194
Port: http 8080/TCP
TargetPort: 80/TCP
NodePort: http 30488/TCP
Endpoints: 10.32.0.4:80,10.32.0.5:80
Port: https 443/TCP
TargetPort: 443/TCP
NodePort: https 32430/TCP
Endpoints: 10.32.0.4:443,10.32.0.5:443
Session Affinity: None
External Traffic Policy: Cluster
Events: <none>

Answer 1

You can not access the application on ipaddress:8080 without using a proxy server in front or changing IPtable rules(not good idea). NodePort service type will always expose service in port range 30000-32767
So at any point, your service will be running on ipaddress:some_higher_port
Running a proxy in front which, redirects the traffic to node port and since 8080 is your requirement so run proxy server also on 8080 port.
Just to add proxy server will not be part of Kubernetes cluster
If you are on cloud consider using LoadBalancer service and access you app on some DNS name.