lab9.md

Lab 9: Introduction to Kubernetes

Overview

In this lab, you will explore Kubernetes, set up a local development environment, and create manifests for your application.

Task 1: Kubernetes Setup and Basic Deployment

6 Points:

1. Learn About Kubernetes:

   • Begin by studying the fundamentals of Kubernetes:
     • What is Kubernetes
     • Kubernetes Components

2. Install Kubernetes Tools:

   • Install kubectl and minikube, essential tools for managing Kubernetes.
     • Kubernetes Tools

3. Deploy Your Application:

   • Deploy your application within the Minikube cluster using the kubectl create command. Create a Deployment resource for your app.
     • Example of Creating a Deployment
     • Deployment Overview

4. Access Your Application:

   • Make your application accessible from outside the Kubernetes virtual network. Achieve this by creating a Service resource.
     • Example of Creating a Service
     • Service Overview

5. Create a Kubernetes Folder:

   • Establish a k8s folder within your repository.
   • Create a README.md report within this folder and include the output of the kubectl get pods,svc command.

6. Cleanup:

   • Remove the Deployment and Service resources that you created, maintaining a tidy Kubernetes environment.

Task 2: Declarative Kubernetes Manifests

4 Points:

1. Manifest Files for Your Application:

   • As a more efficient and structured approach, employ configuration files to deploy your application.
   • Create a deployment.yml manifest file that describes your app's deployment, specifying at least 3 replicas.
     • Kubernetes Deployment
     • Declarative Management of Kubernetes Objects Using Configuration Files

2. Service Manifest:

   • Develop a service.yml manifest file for your application.

3. Manifest Files in k8s Folder:

   • Store these manifest files in the k8s folder of your repository.
   • Additionally, provide the output of the kubectl get pods,svc command in the README.md report.
   • Include the output of the minikube service --all command and the result from your browser, with a screenshot demonstrating that the IP matches the output of minikube service --all.

Bonus Task: Additional Configuration and Ingress

To Earn 2.5 Additional Points:

1. Manifests for Extra App:

   • Create deployment and service manifests for an additional application.

2. Ingress Manifests:

   • Construct Ingress manifests for your applications.

3. Application Availability Check:

   • Utilize curl or a similar tool to verify the availability of your applications. Include the output in the report.

Guidelines:

• Maintain a clear and well-structured README.md document.
• Ensure that all required components are included.
• Adhere to file and folder naming conventions.
• Create and participate in PRs to facilitate the peer review process.
• Create pull requests (PRs) as needed: from your fork to the main branch of this repository, and from your fork's branch to your fork's master branch.

Note: Detailed documentation is crucial to ensure that your Kubernetes deployment is fully functional and accessible. Engage with the bonus tasks to further enhance your understanding and application deployment skills.