Vagrant & Kubernetes Local Development Environment

Why did we create such an environment?

The main reason we created such an environment was to easily deploy the code written by the developer team into a kubernetes cluster, to advance a smooth development process, and to standardize development environments.

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When the code was changed with Skaffold, the deployment part was solved.

1. Whenever there is a change in the code, scaffold automatically detects it and makes a docker image.
2. Pushing new image to docker hub.
3. Kubernetes pulls and deploys new image.

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Why we used k3s?

1. Lightweight Kubernetes development environment.
2. A quick and easy Kubernetes cluster.
3. A single-node configuration
4. It has a low memory/CPU consumption.

Why we use skaffold?

1. Fast iterative development
2. Production-ready CI/CD pipelines
3. On-cluster application debugging

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Requirements

• Git

• Vagrant

• VirtualBox

• Docker

• Docker Hub Account and Login

• Kubectl

• Skaffold

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How to use this environment

Application address is: localhost:3000

1. Docker login

    docker login

2. Create docker hub repo

   https://hub.docker.com/repository/create

3. Clone this repo

    git clone https://github.com/AbdullahAki/Kubernetes-Challenge.git

4. Go inside the repo

    cd Kubernetes-Challenge

5. Edit skaffold.yaml

#7  - image: username/docker-repo

6. Start Vagrant cluster

    vagrant up

7. Get required authentication file

    sudo chmod +x skaffold.sh && ./skaffold.sh

8. If we are logged in and we want to do build and deploy your app every time your code changes

    skaffold --kubeconfig='k3s.yaml' dev

9. If we want to build and deploy your App once

    skaffold --kubeconfig='k3s.yaml' run

10. If you want to see machine UI, you can SSH into the machine.

    vagrant ssh

11. Exit machine.

    exit

12. Delete Vagrant cluster

    vagrant destroy