The values to have a sample nginx can be found in this file. We set the replicas to 1:
global:
replicaCount: 1
You can increase it and upgrade your helm release whenever you want. Then comes the nginx image info:
image:
repository: "nginx"
tag: "1.24.0"
pullPolicy: Always
The tag may be changed if you need another version of nginx. To expose nginx define Service:
services:
- name: web
type: NodePort
annotations: {}
specs:
- port: 80
targetPort: 80
nodePort: 30080
name: web
To have custom nginx config use ConfigMaps:
volumes:
enabled: true
pvc:
enabled: false
configMaps:
- name: nginx-config
mountPath: /etc/nginx/conf.d/
data:
default.conf: |
server {
listen 80;
listen [::]:80;
server_name www.example.com;
location / {
proxy_pass http://localhost:8000;
proxy_set_header Host $http_host;
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 $scheme;
}
}
Change nginx config as you wish. The name of the key(s) in .volumes.configMaps[*].data will become the file
names mounted in the Pod.
Set the .volumes.pvc.enabled to false because we do not need PVC for nginx.
And finally the resources:
resources:
limits:
cpu: 100m
memory: 200Mi
requests:
cpu: 100m
memory: 200Mi
This is not mandatory but it is a good practice to define resources for Pods. Now you have the values to deploy nginx. Install it with a command like:
helm install nginx app/app --values ./values.yaml
And have fun!