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Ques:-
Application Development team is planning to deploy one of the php-based applications on Kubernetes cluster. As per the recent discussion with DevOps team, they have decided to use nginx and phpfpm. Additionally, they also shared some custom configuration requirements. Below you can find more details. Please complete this task as per requirements mentioned below:
1) Create a service to expose this app, the service type must be NodePort, nodePort should be 30012.
2.) Create a config map named nginx-config for nginx.conf as we want to add some custom settings in nginx.conf.
a) Change the default port 80 to 8096 in nginx.conf.
b) Change the default document root /usr/share/nginx to /var/www/html in nginx.conf.
c) Update the directory index to index index.html index.htm index.php in nginx.conf.
3.) Create a pod named nginx-phpfpm .
b) Create a shared volume named shared-files that will be used by both containers (nginx and phpfpm) also it should be a emptyDir volume.
c) Map the ConfigMap we declared above as a volume for nginx container. Name the volume as nginx-config-volume, mount path should be /etc/nginx/nginx.conf and subPath should be nginx.conf
d) Nginx container should be named as nginx-container and it should use nginx:latest image. PhpFPM container should be named as php-fpm-container and it should use php:8.2-fpm-alpine image.
e) The shared volume shared-files should be mounted at /var/www/html location in both containers. Copy /opt/index.php from jump host to the nginx document root inside the nginx container, once done you can access the app using App button on the top bar.
You can use any labels as per your choice
Ans:-
Here’s a complete Kubernetes setup based on your requirements for deploying a PHP-based application using nginx and php-fpm:
raj@jumphost ~$ cat pod.yaml
---
#Create the ConfigMap (nginx-config)
apiVersion: v1
kind: ConfigMap
metadata:
name: nginx-config
data:
nginx.conf: |
events {}
http {
server {
listen 8096;
root /var/www/html;
index index.html index.htm index.php;
location / {
try_files $uri $uri/ =404;
}
location ~ \.php$ {
include fastcgi_params;
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}
}
}
---
#Create the Pod (nginx-phpfpm)
apiVersion: v1
kind: Pod
metadata:
name: nginx-phpfpm
labels:
app: php-nginx-app
spec:
volumes:
- name: shared-files
emptyDir: {}
- name: nginx-config-volume
configMap:
name: nginx-config
items:
- key: nginx.conf
path: nginx.conf
containers:
- name: nginx-container
image: nginx:latest
volumeMounts:
- name: shared-files
mountPath: /var/www/html
- name: nginx-config-volume
mountPath: /etc/nginx/nginx.conf
subPath: nginx.conf
- name: php-fpm-container
image: php:8.2-fpm-alpine
volumeMounts:
- name: shared-files
mountPath: /var/www/html
---
#Create the Service (NodePort)
apiVersion: v1
kind: Service
metadata:
name: php-nginx-service
spec:
type: NodePort
selector:
app: php-nginx-app
ports:
- port: 8096
targetPort: 8096
nodePort: 30012
raj@jumphost ~$ kubectl apply -f pod.yaml
configmap/nginx-config created
pod/nginx-phpfpm created
service/php-nginx-service created
raj@jumphost ~$ kubectl get all
NAME READY STATUS RESTARTS AGE
pod/nginx-phpfpm 2/2 Running 0 16s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 32m
service/php-nginx-service NodePort 10.96.42.191 <none> 8096:30012/TCP 16s
raj@jumphost ~$ kubectl get cm
NAME DATA AGE
kube-root-ca.crt 1 32m
nginx-config 1 22s
Copy index.php to the shared volume
After the pod is running, execute the following command from the jump host:
raj@jumphost ~$ kubectl cp /opt/index.php nginx-phpfpm:/var/www/html/index.php -c nginx-container
raj@jumphost ~$
Accessing the App
Once the file is copied, you can access the app via the Node IP and NodePort (30012).
Conclusion:-
Learn how to deploy a PHP-based web application on a Kubernetes cluster using Nginx and PHP-FPM. This hands-on tutorial walks you through creating a ConfigMap for custom Nginx configuration, setting up a multi-container Pod with shared volumes, and exposing your application using a NodePort service. Perfect for DevOps engineers, application developers, and Kubernetes enthusiasts looking to understand real-world deployment patterns.
What you'll learn:
- Create and use ConfigMaps for custom Nginx configuration
- Deploy multi-container Pods with shared volumes
- Use
emptyDirvolumes for inter-container communication - Expose applications using NodePort services
- Copy files into running containers using
kubectl cp - Access deployed PHP apps via browser
