Day 34 Task: Working with Services in Kubernetes

🔶 What are Services in K8s

In Kubernetes, Services are objects that provide stable network identities to Pods and abstract away the details of Pod IP addresses. Services allow Pods to receive traffic from other Pods, Services, and external clients.

🔶 Task-1: Create a Service for your todo-app Deployment

• Create a Service for your todo-app Deployment from Day 32

• 

• installation for minikube refer this link

        # First all update system and install Docker 
        sudo apt-get update
        sudo apt-get install docker.io -y
        sudo usermod -aG docker $USER && newgrp docker
  
        # To install Minikube & Kubectl
        curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
        sudo install minikube-linux-amd64 /usr/local/bin/minikube 
  
        sudo snap install kubectl --classic
        minikube start --driver=docker
  

• Clone this repository to your local machine:

      git clone https://github.com/niluflip/django-todo-cicd.git
  

     sudo docker build . -t nileshsahare/django-todo:latest
  

• 

  

• Create a Service definition for your todo-app Deployment in a YAML file.

• 

•       apiVersion: v1
        kind: Service
        metadata:
          name: django-todo-services
          namespace: django-app
        spec:
          type: NodePort
          selector:
            app: django-app
          ports:
          - protocol: TCP
            port: 8000
            targetPort: 30007
  

• 

• Apply the Service definition to your K8s (minikube) cluster using the kubectl apply -f service.yml -n <namespace-name> command.

      kubectl create namespace django-app
  

      kubectl create -f service.yml -n django-app
  

  

• Verify that the Service is working by accessing the todo-app using the Service's IP and Port in your Namespace.

🔶 Task-2: Create a ClusterIP Service for accessing the todo-app from within the cluster

• Create a ClusterIP Service for accessing the todo-app from within the cluster

      apiVersion: v1
      kind: Service
      metadata:
        name: django-todo-services
        namespace: django-app
      spec:
        type: NodePort
        selector:
          app: django-app
        ports:
        - protocol: TCP
          port: 8000
        type: ClusterIP
  

  

• Create a ClusterIP Service definition for your todo-app Deployment in a YAML file.

• Apply the ClusterIP Service definition to your K8s (minikube) cluster using the kubectl apply -f cluster-ip-service.yml -n <namespace-name> command.

       kubectl create -f cluster-service.yml -n django-app
  

• Verify that the ClusterIP Service is working by accessing the todo-app from another Pod in the cluster in your Namespace.

kubectl get all -n django-app

🔶 Task-3: Create a LoadBalancer Service for accessing the todo-app from outside the cluster

• Create a LoadBalancer Service for accessing the todo-app from outside the cluster

      #LoadBalncer
      apiVersion: v1
      kind: Service
      metadata:
        name: django-todo-lb-services
        namespace: django-app
      spec:
        type: NodePort
        selector:
          app: django-app
        ports:
        - protocol: TCP
          port: 8000
          targetport: 8000
        type: LoadBalancer
  

• Create a LoadBalancer Service definition for your todo-app Deployment in a YAML file.

• Apply the LoadBalancer Service definition to your K8s (minikube) cluster using the kubectl apply -f load-balancer-service.yml -n <namespace-name> command.

      kubectl apply -f loadbalancer.yml -n django-app
  

• Verify that the LoadBalancer Service is working by accessing the todo-app from outside the cluster in your Namespace.

      kubectl get svc -n django-app
      minikube service list
  

  

      kubectl get all -n django-app
  

  

Struggling with Services? Take a look at this video for a step-by-step guide.

Need help with Services in Kubernetes? Check out the Kubernetes documentation for assistance.

Happy Learning :)

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