Yoshi275 / cs3219_otot_task_a3

Task A: Docker & Kubernetes Task

A3 - Introduction to Kubernetes

Tasks:

Demonstrate the ability to write a simple ingress yml file.
Use an ingress controller (for example, ingress-nginx) to enable sticky session load-balancing between 2 replicas using cookies
Define a basic horizontal pod auto-scaler and demonstrates it works as expected for a scaling metric of your choosing

Setup:

Run the following command to start the server

kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.1.0/deploy/static/provider/cloud/deploy.yaml

Run the following command to wait for the ingress controller pods within the namespace ingress-nginx to all be running

kubectl wait --namespace ingress-nginx --for=condition=ready pod \
    --selector=app.kubernetes.io/component=controller --timeout=120s

Run the following command to deploy the images as K8s Deployments, Services and the Ingress
```
cd k8s/development
kubectl apply -f .
```
Get the nginx welcome message through querying the following link
```
curl http://kubernetes.docker.internal
```

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