AKS Ingress Test

# create an AKS cluster
AKS_RG="aks-rg"
AKS_NAME="aks-cluster"

az group create -n $AKS_RG -l eastus
az aks create -g $AKS_RG -n $AKS_NAME --network-plugin azure --generate-ssh-keys --node-count 2
az k8s-extension create -g $AKS_RG -c $AKS_NAME -n flux --extension-type microsoft.flux -t managedClusters --auto-upgrade-minor-version true
 

az aks get-credentials -n $AKS_NAME -g $AKS_RG --overwrite-existing

# verify connection to the cluster
kubectl get nodes

# install Nginx ingress controller
NAMESPACE_INGRESS="ingress-nginx"
helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
helm repo update
helm install ingress-nginx ingress-nginx/ingress-nginx \
     --create-namespace \
     --namespace $NAMESPACE_INGRESS \
     --set controller.service.annotations."service\.beta\.kubernetes\.io/azure-load-balancer-health-probe-request-path"=/healthz

INGRESS_PUBLIC_IP=$(kubectl get services ingress-nginx-controller -n $NAMESPACE_INGRESS -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
echo $INGRESS_PUPLIC_IP

# install Application
NAMESPACE_APP_01="app-01"
kubectl create namespace $NAMESPACE_APP_01

cat <<EOF | kubectl create -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: aks-helloworld-one  
spec:
  replicas: 1
  selector:
    matchLabels:
      app: aks-helloworld-one
  template:
    metadata:
      labels:
        app: aks-helloworld-one
    spec:
      containers:
      - name: aks-helloworld-one
        image: mcr.microsoft.com/azuredocs/aks-helloworld:v1
        ports:
        - containerPort: 80
        env:
        - name: TITLE
          value: "Welcome to Azure Kubernetes Service (AKS)"
---
apiVersion: v1
kind: Service
metadata:
  name: aks-helloworld-one
spec:
  type: ClusterIP
  ports:
  - port: 80
  selector:
    app: aks-helloworld-one
EOF


cat <<EOF | kubectl create -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: aks-helloworld-two  
spec:
  replicas: 1
  selector:
    matchLabels:
      app: aks-helloworld-two
  template:
    metadata:
      labels:
        app: aks-helloworld-two
    spec:
      containers:
      - name: aks-helloworld-two
        image: mcr.microsoft.com/azuredocs/aks-helloworld:v1
        ports:
        - containerPort: 80
        env:
        - name: TITLE
          value: "AKS Ingress Demo"
---
apiVersion: v1
kind: Service
metadata:
  name: aks-helloworld-two  
spec:
  type: ClusterIP
  ports:
  - port: 80
  selector:
    app: aks-helloworld-two
EOF


cat <<EOF | kubectl create -f -
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: hello-world-ingress
  annotations:
    nginx.ingress.kubernetes.io/ssl-redirect: "false"
    nginx.ingress.kubernetes.io/use-regex: "true"
    nginx.ingress.kubernetes.io/rewrite-taAKS_RGet: /\$2
spec:
  ingressClassName: nginx
  rules:
  - http:
      paths:
      - path: /hello-world-one(/|$)(.*)
        pathType: Prefix
        backend:
          service:
            name: aks-helloworld-one
            port:
              number: 80
      - path: /hello-world-two(/|$)(.*)
        pathType: Prefix
        backend:
          service:
            name: aks-helloworld-two
            port:
              number: 80
      - path: /(.*)
        pathType: Prefix
        backend:
          service:
            name: aks-helloworld-one
            port:
              number: 80
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: hello-world-ingress-static
  annotations:
    nginx.ingress.kubernetes.io/ssl-redirect: "false"
    nginx.ingress.kubernetes.io/rewrite-taAKS_RGet: /static/\$2
spec:
  ingressClassName: nginx
  rules:
  - http:
      paths:
      - path: /static(/|$)(.*)
        pathType: Prefix
        backend:
          service:
            name: aks-helloworld-one
            port: 
              number: 80
EOF

curl http://$INGRESS_PUPLIC_IP
curl http://$INGRESS_PUPLIC_IP/aks-helloworld-one
curl http://$INGRESS_PUPLIC_IP/aks-helloworld-two


AZURE_PUBLIC_IP_ID=$(az network public-ip list --query "[?ipAddress!=null]|[?contains(ipAddress, '$INGRESS_PUPLIC_IP')].[id]" -o tsv)
echo $AZURE_PUBLIC_IP_ID

# Update public IP address with DNS name
az network public-ip update --ids $AZURE_PUBLIC_IP_ID --dns-name $DNS_NAME
DOMAIN_NAME_FQDN=$(az network public-ip show --ids $AZURE_PUBLIC_IP_ID --query='dnsSettings.fqdn' -o tsv)
# DOMAIN_NAME_FQDN=$(az network public-ip show -g MC_AKS_RG-aks-we_aks-cluster_westeurope -n kubernetes-af54fcf50c6b24d7fbb9ed6aa62bdc77 --query='dnsSettings.fqdn')
echo $DOMAIN_NAME_FQDN