/K8s-Python-Hello-World

Kubernetes Simple Python Hello Example

Primary LanguagePython

Hello World Container for Docker & Kubernetes Testing

This is a simple Hello World Python Flask Container for Docker & Kubernetes testing porpouses

More Python Flask information please visit: http://flask.pocoo.org

Building Container Under Docker:

  1. Clone Git Repo
git clone https://github.com/zebrastack/python-helloworld.git
  1. Install Docker over Ubuntu 1604/1804
apt install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -sc) stable"
apt update
apt install -y docker-ce
docker run hello-world
  1. Build Docker Image
> cd python-helloworld
> docker build -t python-helloworld .
  1. Start Docker Container
docker run --rm -it -p 8000:8000 python-helloworld:latest
  1. Open a new terminal connection to server and test connection or you could test it over your browser
curl http://localhost:8000

Pushing Image to Docker Hub

docker login
#DOCKER_ID_USER is your Docker Hub userid, tag your image with your Docker Hub userid
docker tag python-helloworld DOCKER_ID_USER/python-helloworld
docker push DOCKER_ID_USER/python-helloworld

Building Container under Kubernetes

  1. Deploy Container to K8s and test
kubectl create deployment python-helloworld --image=ozhank/python-helloworld
kubectl expose deployment python-helloworld --type=LoadBalancer --port=8000
kubectl get services
curl http://<CLUSTER-IP>:PORT
  1. If your deploy K8s over Minikube you could test it over minikube ip
minikube ip
minikube service python-helloworld --url
curl <url>
#Example: curl http://192.168.39.165:31282