Deploying a Django application in Azure AKS with an Ingress Controller and TLS

TL;DR approach, read the full acrticle on Medium.

Build and run the Django app with Docker

$ docker build -f Dockerfile -t django-aks:v1.0.0 .
$ docker run -it -p 8010:8010 django-aks:v1.0.0

Check the deployment at: https://127.0.0.1:8010

Tag and push the image to ACR

$ docker tag django-aks:v1.0.0 yourregistry.azurecr.io/django-aks:v1.0.0
$ docker push yourregistry.azurecr.io/django-aks:v1.0.0

Create NGINX Ingress controller

Replace PUBLIC_IP with your Azure public ip resource address.

$ helm install nginx-ingress stable/nginx-ingress \     
  --namespace yournamespace \     
  --set controller.replicaCount=2 \     
  --set controller.nodeSelector."beta\.kubernetes\.io/os"=linux \
  --set defaultBackend.nodeSelector."beta\.kubernetes\.io/os"=linux \
  --set controller.service.loadBalancerIP="PUBLIC_IP" \
  --set controller.service.annotations."service\.beta\.kubernetes\.io/azure-dns-label-name"="your-dns-label"

Replace the host in the files

Replace the current FQDN in all the k8s files with your own FQDN that you created in the previous step.

Add the FQDN in app/app/settings.py in the ALLOWED_HOSTS list.

Rebuild the Docker image and push it to your ACR registry.

Install cert-manager

$ helm repo add jetstack https://charts.jetstack.io
$ helm repo update
$ helm install \
  cert-manager jetstack/cert-manager \
  --namespace yournamespace \
  --version v0.15.1 \
  --set installCRDs=true

Apply the manifests to your cluster

$ kubectl apply -f cluster-issuer.yaml --namespace yournamespace
$ kubectl apply -f webapp-deployment.yaml --namespace yournamespace
$ kubectl apply -f webapp-service.yaml --namespace yournamespace
$ kubectl apply -f ingress-routing.yaml --namespace yournamespace