This project outlines a step-by-step guide on how to deploy a simple LAMP application that runs on a Kubernetes cluster.
Create a Kubernetes cluster. You can create a Kubernetes cluster in aws eks, azure aks or your vm(using minikube)
Dockerize your application by creating a Dockerfile that defines how your application should be packaged as a container. Build and push the Docker image to docker hub or docker registry.
☑️ Here configure yml file for service and deploymnet
apiVersion: v1
kind: Service
metadata:
name: lamp-app-service
spec:
ports:
- port: 80
selector:
app: lamp-app
type: LoadBalancer
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: lamp-app-deployment
spec:
replicas: 2
selector:
matchLabels:
app: lamp-app
template:
metadata:
labels:
app: lamp-app
spec:
containers:
- name: lamp-app
image: shihab24/lamp:latest
volumeMounts:
- name: storage
mountPath: /var/www/html/uploads
ports:
- containerPort: 80
volumes:
- name: storage
persistentVolumeClaim:
claimName: lamp-pvc
☑️ Configure volume mount so that application can store data in a single path.
apiVersion: v1
kind: PersistentVolume
metadata:
name: lamp-pv
spec:
capacity:
storage: 1Gi
volumeMode: Filesystem
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Retain
storageClassName: manual
hostPath:
path: /temp/storage/lamp/uploads
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: lamp-pvc
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 1Gi
storageClassName: manual
☑️ Create Mysql configuration
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: mysql-pv-claim
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 1Gi
---
apiVersion: v1
kind: Service
metadata:
name: mysql-service
spec:
ports:
- port: 3306
selector:
app: mysql
type: ClusterIP
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: mysql-deployment
spec:
replicas: 1
selector:
matchLabels:
app: mysql
template:
metadata:
labels:
app: mysql
spec:
containers:
- name: mysql
image: mysql:latest
env:
- name: MYSQL_ROOT_PASSWORD
value: root
ports:
- containerPort: 3306
☑️ First run mysql using kubectl apply kubernetes/mysql.yml command.
☑️ Run volume kubectl apply kubernetes/persistentvolumeclaim.yaml command.
☑️ Then run application using kubectl apply kubernetes/app.yml command.
☑️ Authenticate to access your docker hub or docker registry .
☑️ Build and push your Docker image to your docker hub or registry.
☑️ Update build image tag in deployment kubernetes yaml.
☑️ Then run application using kubectl apply kubernetes/app.yml command.
We dockerized the application on a Kubernetes cluster. This gave us a strong base for our deployment. After that, we updated the application with update image tag and pushed this to docker registry and also edited kubernetes yml for this image tag and run this yml.
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