Accessing docker container over https on Azure subdomain - azure

Question

As an experiment I'm trying to run a docker container on Azure using the Azure Container Service and Kubernetes as the orchestrator. I'm running the official nginx image. Here are the steps I am taking:
az group create --name test-group --location westus
az acs create --orchestrator-type=kubernetes --resource-group=test-group --name=k8s-cluster --generate-ssh-keys
I created Kubernetes deployment and service files from a docker compose file using Kompose.
deployment file
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
annotations:
kompose.service.type: LoadBalancer
creationTimestamp: null
labels:
io.kompose.service: test
name: test
spec:
replicas: 1
strategy: {}
template:
metadata:
creationTimestamp: null
labels:
io.kompose.service: test
spec:
containers:
- image: nginx:latest
name: test
ports:
- containerPort: 80
resources: {}
restartPolicy: Always
status: {}
service file
apiVersion: v1
kind: Service
metadata:
annotations:
kompose.service.type: LoadBalancer
creationTimestamp: null
labels:
io.kompose.service: test
name: test
spec:
ports:
- name: "80"
port: 80
targetPort: 80
selector:
io.kompose.service: test
type: LoadBalancer
status:
loadBalancer: {}
I can then start everything up:
kubectl create -f test-service.yaml,test-deployment.yaml
Once an IP has been exposed I assign a dns prefix to it so I can access my running container like so: http://nginx-test.westus.cloudapp.azure.com/.
My question is, how can I access the service using https? At https://nginx-test.westus.cloudapp.azure.com/
I don't think I'm supposed to configure nginx for https, since the certificate is not mine. I've tried changing the load balancer to send 443 traffic to port 80, but I receive a timeout error.
I tried mapping port 443 to port 80 in my Kubernetes service config.
ports:
- name: "443"
port: 443
targetPort: 80
But that results in:
SSL peer was not expecting a handshake message it received. Error code: SSL_ERROR_HANDSHAKE_UNEXPECTED_ALERT
How can I view my running container at https://nginx-test.westus.cloudapp.azure.com/?

Answer 1

If I understand it correctly, I think you are looking for Nginx Ingress controller.
If we need TLS termination on Kubernetes, we can use ingress controller, on Azure we can use Nginx Ingress controller.
To archive this, we can follow those steps:
1 Deploy the Nginx Ingress controller
2 Create TLS certificates
3 Deploy test http service
4 configure TLS termination
More information about configure Nginx Ingress Controller for TLS termination on Kubernetes on Azure, please refer to this blog.
root#k8s-master-6F403744-0:~/ingress/examples/deployment/nginx# kubectl get services --namespace kube-system -w
NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE
default-http-backend 10.0.113.185 <none> 80/TCP 42m
heapster 10.0.4.232 <none> 80/TCP 1h
kube-dns 10.0.0.10 <none> 53/UDP,53/TCP 1h
kubernetes-dashboard 10.0.237.125 <nodes> 80:32229/TCP 1h
nginx-ingress-ssl 10.0.92.57 40.71.37.243 443:30215/TCP 13m