Day 33 Task: Working with Namespaces and Services in Kubernetes

Day 33 Task: Working with Namespaces and Services in Kubernetes

Day - 32 #90daysofdevopschallenge

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2 min read

πŸ“Œ What are Namespaces and Services in k8s

In Kubernetes, Namespaces are used to create isolated environments for resources. Each Namespace is like a separate cluster within the same physical cluster. Services are used to expose your Pods and Deployments to the network.

πŸ“Œ Task 1: Create a Namespace for your Deployment

Command to create namespace - kubectl create namespace deployment

Update the deployment.yml file to include the Namespace

Apply the updated deployment using the command: kubectl apply -f deployment.yml -n <namespace-name>

Verify that the Namespace has been created by checking the status of the Namespaces in your cluster.

πŸ“Œ Task 2: Read about Services, Load Balancing, and Networking in Kubernetes

Services:

In Kubernetes, a Service is a set of Pods (a group of one or more containers) and a policy by which to access them. Services enable network communication between different parts of your application or between different applications within a Kubernetes cluster.

  • ClusterIP: The default type exposes the Service only within the cluster. It is suitable for inter-pod communication.

  • NodePort: Exposes the Service on a specific port on each Node in the cluster, making it accessible from outside the cluster, typically for development or testing purposes.

  • LoadBalancer: Automatically provisions a cloud load balancer, if the platform supports it, and forwards traffic to the Service. This is often used for exposing applications to the internet.

Load Balancing:

Load balancing is a critical aspect of managing traffic within a Kubernetes cluster. Kubernetes provides load-balancing mechanisms to distribute incoming traffic among the pods associated with a Service.

Networking:

Networking in Kubernetes involves how containers and Pods communicate with each other and the outside world. Kubernetes provides a robust networking model and abstracts the underlying network infrastructure to simplify cluster management.

Thank You

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