NS + Pod Limitation

To create a namespace for your application and specify resource limits for the container, you can modify your Kubernetes configuration files as follows:

Define the namespace.
Update your Deployment to use the new namespace.
Add resource limits to the container specification.

Here's the updated configuration:

Namespace Definition

apiVersion: v1
kind: Namespace
metadata:
  name: hdfc-upi-namespace

Deployment with Resource Limits

apiVersion: apps/v1
kind: Deployment
metadata:
  name: hdfc-upi-deployment
  namespace: hdfc-upi-namespace
spec:
  replicas: 1
  selector:
    matchLabels:
      app: hdfc-upi
  template:
    metadata:
      labels:
        app: hdfc-upi
    spec:
      containers:
      - name: hdfc-upi
        image: ahmadmcsam/hdfc-upi:0.0.0.8
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 8001
        resources:
          limits:
            memory: "500Mi"
            cpu: "0.5"
          requests:
            memory: "500Mi"
            cpu: "0.5"
      imagePullSecrets:
        - name: dockerhubcred

NodePort Service

apiVersion: v1
kind: Service
metadata:
  name: hdfc-upi-svc-nodeport
  namespace: hdfc-upi-namespace
spec:
  selector:
    app: hdfc-upi
  ports:
  - protocol: TCP
    port: 8001
    targetPort: 8001
    nodePort: 30002
  type: NodePort

ClusterIP Service

apiVersion: v1
kind: Service
metadata:
  name: hdfc-upi-svc-clusterip
  namespace: hdfc-upi-namespace
spec:
  selector:
    app: hdfc-upi
  ports:
  - protocol: TCP
    port: 8001
    targetPort: 8001
  type: ClusterIP

Full Configuration

Combining all parts, the complete configuration file will look like this:

apiVersion: v1
kind: Namespace
metadata:
  name: hdfc-upi-namespace
 
---
 
apiVersion: apps/v1
kind: Deployment
metadata:
  name: hdfc-upi-deployment
  namespace: hdfc-upi-namespace
spec:
  replicas: 1
  selector:
    matchLabels:
      app: hdfc-upi
  template:
    metadata:
      labels:
        app: hdfc-upi
    spec:
      containers:
      - name: hdfc-upi
        image: ahmadmcsam/hdfc-upi:0.0.0.8
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 8001
        resources:
          limits:
            memory: "500Mi"
            cpu: "0.5"
          requests:
            memory: "500Mi"
            cpu: "0.5"
      imagePullSecrets:
        - name: dockerhubcred
 
---
 
apiVersion: v1
kind: Service
metadata:
  name: hdfc-upi-svc-nodeport
  namespace: hdfc-upi-namespace
spec:
  selector:
    app: hdfc-upi
  ports:
  - protocol: TCP
    port: 8001
    targetPort: 8001
    nodePort: 30002
  type: NodePort
 
---
 
apiVersion: v1
kind: Service
metadata:
  name: hdfc-upi-svc-clusterip
  namespace: hdfc-upi-namespace
spec:
  selector:
    app: hdfc-upi
  ports:
  - protocol: TCP
    port: 8001
    targetPort: 8001
  type: ClusterIP

This configuration will create a namespace hdfc-upi-namespace, deploy the hdfc-upi application within that namespace with specified resource limits, and define both NodePort and ClusterIP services within the same namespace.

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