K8Notes

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What better way to learn a technology than to create an app with it? The theory all makes sense when you actually put it into practice. To get familiar with Kubernetes basics, we will create a minimalistic application with an emphasis on learning Kubernetes. The outcomes of this project are:

1. Better understanding and familiarity with Kubernetes basic concepts:
   • Networking: Ingress & Service
   • ConfigMaps & Secrets
   • StatefulSets & VolumeClaims
   • kubectl & minikube
2. Learning a Rust framework along the way

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This is a very basic app that stores k8 notes with useful information to memorize about Kubernetes!

Tech Stack

To build the application, we will use the following tech stack:

1. Kubernetes - Obviously
2. Docker & DockerHub - For our container images
3. Nginx - For our web server and our ingress
4. Actix - A Rust framework and the Rust MongoDB driver
5. Git - For version control
6. MongoDB - For our database
7. Optional: WSL, Linux subsystem for Windows

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Workflow and Tasks

Task 1: Pre Reqs

Steps

• Create ConfigMap and Secret
• Create DockerHub repo

Task 2: Create Actix App

Steps

• Build Rust app with Cargo
• Make custom image for the app
• Push to DockerHub
• Deploy to k8 and test endpoint with minikube service

Task 3: Create MongoDB

Steps

• Deploy MongoDB with persistent volume
• Test Actix app integration with MongoDB

Task 4: Configure Ingress

Steps

• Create ingress for Actix app and test

Task 5: Create Web Server

Steps

• Make custom image for Nginx web server
• Push to DockerHub
• Deploy to k8 and test with minikube service

Task 6: Final Integration

Steps

• Add web service to ingress
• Test the entire application

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