Operators

Setting up operator-sdk on Ubuntu

• Checkout operator-sdk

  git clone https://github.com/operator-framework/operator-sdk

Setting up operator-sdk on WLS Ubuntu

• Install Ubuntu 22.04 LTS from Microsoft app store
• Run sudo apt upgrade
• Install go: sudo apt install golang-go
• Install make: sudo apt install make
• Checkout operator-sdk git clone https://github.com/operator-framework/operator-sdk.git

Building operator-sdk

• cd into operator-sdk and run make
• binaries are created under ./build
• run make install
• installs to $GOPATH/bin

Setting up minikube for WSL ubuntu

• Go to Docker Desktop->Settings->Resources->WSL Integration
• Enable the desired distro
• Download minikube: curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
• chmod +x ./minikube
• sudo usermod -aG docker $USER && newgrp docker
• Run: sudo usermod -aG docker $USER && newgrp docker
• Start ./minikube start

Creating nginx-operator

• mkdir nginx-operator and cd into it
• initialzing a boilerplate using operator init:

../operator-sdk/build/operator-sdk init --domain qinkeith.com --repo github.com/example/nginx-operator

• scaffolding the API using operator api:

../operator-sdk/build/operator-sdk create api --group operator --version v1alpha1 --kind NginxOperator --resource --controller