feat: NIC demo files and README (#6)

Co-authored-by: Alessandro Fael Garcia <[email protected]>

Author: DylenTurnbull

nic/appworld/README.md

@@ -0,0 +1,104 @@
+# NGINX Ingress Controller Demo
+
+## Prerequisites
+
+### Install VSCode
+
+1. Go to the [VSCode download page](https://code.visualstudio.com/download).
+2. Download the installer for your operating system.
+3. Run the installer and follow the on-screen instructions to complete the installation.
+
+### Install Git
+
+1. Open a terminal or command prompt.
+2. Run the following command to install Git using Winget:
+    ```shell
+    winget install -e --id Git.Git
+    ```
+
+### Authenticate with GitHub
+
+1. Open a terminal or command prompt.
+2. Configure your GitHub email:
+    ```shell
+    git config --global user.email "[email protected]"
+    ```
+3. Configure your GitHub username:
+    ```shell
+    git config --global user.name "Your Name"
+    ```
+
+### Install Docker Desktop
+
+1. Open a terminal or command prompt.
+2. Run the following command to install Docker Desktop using Winget:
+    ```shell
+    winget install -e --id Docker.DockerDesktop
+    ```
+3. Follow the on-screen instructions to complete the installation.
+
+### Install Helm
+
+1. Open a terminal or command prompt.
+2. Run the following command to install Helm using Winget:
+    ```shell
+    winget install -e --id Helm.Helm
+    ```
+3. Follow the on-screen instructions to complete the installation.
+
+## Demo Commands
+
+### Add NGINX Helm Repository
+
+1. Open a terminal or command prompt.
+2. Run the following command to add the NGINX stable Helm repository:
+    ```bash
+    helm repo add nginx-stable https://helm.nginx.com/stable
+    ```
+
+### Update Helm Repositories
+
+1. Open a terminal or command prompt.
+2. Run the following command to update your Helm repositories:
+    ```bash
+    helm repo update
+    ```
+
+### Apply Kubernetes CRDs
+
+1. Open a terminal or command prompt.
+2. Run the following command to apply the NGINX Kubernetes CRDs:
+    ```bash
+    kubectl apply -f https://raw.githubusercontent.com/nginx/kubernetes-ingress/v4.0.1/deploy/crds.yaml
+    ```
+
+### Install NGINX Ingress Controller
+
+1. Open a terminal or command prompt.
+2. Run the following command to install the NGINX Ingress Controller using Helm:
+    ```bash
+    helm install nginx-ingress nginx-stable/nginx-ingress --namespace default
+    ```
+
+### Deploy NGINX Application
+
+1. Open a terminal or command prompt.
+2. Run the following command to apply the NGINX deployment configuration:
+    ```bash
+    kubectl apply -f nginx-deployment.yaml
+    ```
+
+### Apply NGINX Ingress Configuration
+
+1. Open a terminal or command prompt.
+2. Run the following command to apply the NGINX ingress configuration:
+    ```bash
+    kubectl apply -f nginx-ingress.yaml
+    ```
+
+## Demo Take Aways
+
+- Intalling NGINX Ingress Controller (NIC) is quick and simple to get up and functional in Kubernetes (K8s)
+- NGINX web server and NIC on K8s on Docker Desktop provides a light weight low stress K8s dev environment to experiment and lean.
+- Recovery from issues is as simple as performing a quick reset of K8s and a few minutes to stand up the envionment again.
+- Join the community and become a contributor.

nic/appworld/nginx-deployment.yaml

@@ -0,0 +1,38 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: nginx-deployment
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: nginx
+  template:
+    metadata:
+      labels:
+        app: nginx
+    spec:
+      containers:
+        - name: nginx
+          image: nginx:latest
+          ports:
+            - containerPort: 80
+          resources:
+            limits:
+              memory: "128Mi"
+              cpu: "500m"
+            requests:
+              memory: "64Mi"
+              cpu: "250m"
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: nginx-service
+spec:
+  selector:
+    app: nginx
+  ports:
+    - protocol: TCP
+      port: 80
+      targetPort: 80

nic/appworld/nginx-ingress.yaml

@@ -0,0 +1,17 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: nginx-ingress
+spec:
+  ingressClassName: nginx
+  rules:
+  - host: localhost
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: nginx-service
+            port:
+              number: 80