dotja / kubernetes-hands-on

Hands-on tasks to learn concepts in Kubernetes.

Kubernetes hands-on

Hands-on tasks to learn concepts in Kubernetes. A video version of each part is found on Youtube.

Part 1: Simple deployment

Part 1 uses a simple Django app with hardcoded variables in settings.py.

• start Minikube

minikube start

• build Docker image locally

eval $(minikube -p minikube docker-env)
docker build -t project .

• apply YAML templates

kubectl apply -f deployment.yaml
kubectl apply -f service.yaml

• Django app URL

echo $(minikube ip):$SERVICE_PORT

Part 2: Environment variables and secrets

• start Minikube

minikube start

• update settings.py to read environment variables

• build Docker image locally

eval $(minikube -p minikube docker-env)
docker build -t project .

• create base64 secret

echo -n 'paste-django-secret-key-here' | base64 -w 0

• apply YAML templates

kubectl apply -f configmap.yaml
kubectl get configmap
kubectl describe configmap django-config

kubectl apply -f secrets.yaml
kubectl get secret
kubectl describe secret django-secret

kubectl apply -f deployment.yaml
kubectl apply -f ../../part_1/deploy/service.yaml

• Django app URL

echo $(minikube ip):$SERVICE_PORT