Django project Deployment on Azure Container Machine using Kubernetes as orchestration Tool.
- Clone this repo source code :
https://github.com/inforian/django-kubernetes-azure.git
- Run python manage.py runserver , and visit Browser you will see pink theme Template.
-
Install Docker
-
Build docker image for pink theme :
docker build -t dj:pink . ## (assuming you are inside django project)
- Now , Build Image for Orange theme BUt before that edit template index.html
and copy paste below code inside
<head>tag.
<style>
#banner {
background-color: #ffa500;
}
</style>- Refresh Django dev server url you will see ornage theme.
- Build image for Orange theme
docker build -t dj:orange .
- Check your iamges :
docker images | grep dj
- Now Login to you docker hub Account and push this image to docker-hub:
docker login
# for orange
docker tag {image_id} {docker_hub_username}/dj:orange
# for pink
docker tag {image_id} {docker_hub_username}/dj:pink
- Create a Resource on Azure, You have to choose Azure Container service from Azure portal from their
you can choose any
kubernetesas orchestration type.
- After your Machine is up and Running connect with you
Master VMviaSSh
-
Copy files from
kubernetes_configtoMaster VM -
You must have 3 files on
Master VM- rc-orange.yaml
- rc-pink.yaml
- service.yaml
- Create replication controller for pink theme (I have created only one rc so only one pod will be created):
kubectl create -f rc-pink.yaml
-
Create service with :
kubectl create -f service.yaml
- List your service to check status (Wait for some time till external ip assigned to your service) :
kubectl get service | grep my-dj-app
- If external ip is assigned to your service then visit app url which will be like:
http://{external-ip}:8000 # you will see pink theme
- Now create replication controller for orange theme, I have created 3
Rc'shere :
kubectl create -f rc-orange.yaml
- Check newly created
RCand wait for it un-till it is ready with :
kubectl get rc | grep dj-orange
-
Note : No new service will be craeted here but we have bind orange-theme
RCwith already existing Service (which craeted above). -
Refresh web url(refresh it every other second by pressing f5) , you will see web theme is switching from pink to orange and vice-versa on every refresh or some time remain as it was before.
-
Now we will Scale down pink theme replica to
0, visit web url now only orange theme will work
kubectl scale rc/dj-pink --replicas=0
- Scale up Pink theme
RCagain to1and - orange to0
kubectl scale rc/dj-pink --replicas=1
kubectl scale rc/dj-orange --replicas=0
- Now only pink theme will work, this way you can easily roll out
your new version of site, or we you want to scale you
RC'saccording to traffic on your sites's , you can scale them using above commands.