Microk8s demo

Getting Started

Set up

Make sure systemd is enabled in WSL

• https://devblogs.microsoft.com/commandline/systemd-support-is-now-available-in-wsl/

Install the npm packages

• Install npm packages: npm install && cd frontend && npm install && cd ../backend && npm install && cd ..

Install microk8s

• Instructions here: https://microk8s.io/docs/getting-started
• Add yourself to microk8s access with: sudo usermod -a -G microk8s $USER
• Make sure microk8s is running with sudo microk8s status

Set up a local registry with the image

You need to deploy microk8s locally with a docker container registry running.

• Install microk8s https://microk8s.io/docs/getting-started
• Enable a registry with docker run -d -p 32000:5000 --restart=always --name registry registry:2
• Build the container cd ./server-backend && docker build . -t localhost:32000/microk8sdemo:latest && cd ..
• Push the image to the registry docker push localhost:32000/microk8sdemo:latest

Apply the microk8s image

• Run microk8s kubectl apply -f ./kubedeploy

Run the sample

Run npm run dev to run this

Change the number of servers

Run this to change servers to 8: microk8s kubectl scale --replicas=8 deployment/microk8sdemo

Full list of commands to run to get started

• git clone https://github.com/craigloewen-msft/microk8sdemo.git
• cd microk8sdemo
• curl https://raw.githubusercontent.com/creationix/nvm/master/install.sh | bash
• source ~/.bashrc
• nvm install 16
• nvm use 16
• npm install && cd frontend && npm install && cd ../backend && npm install && cd ..
• sudo snap install microk8s --classic --channel=1.27
• sudo usermod -a -G microk8s $USER
• Close and reload WSL window
• curl -fsSL https://get.docker.com -o get-docker.sh
• sudo sh get-docker.sh
• sudo docker run -d -p 32000:5000 --restart=always --name registry registry:2
• cd ./server-backend && sudo docker build . -t localhost:32000/microk8sdemo:latest && cd ..
• sudo docker push localhost:32000/microk8sdemo:latest
• microk8s kubectl apply -f ./kubedeploy
• npm run dev