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Deploy Django to Kubernetes on AWS (EKS) Finished Code

Code for How to Deploy Django to Kubernetes: Part 2 YouTube live stream.

What's covered?

  • How to setup Kubernetes (EKS) using Terraform
  • How to setup an RDS database that can be used from EKS
  • How to setup EFS for persistent data storage
  • How to Deploy a Django app which supports the Django admin and static media files.

Requirements

Commands

Useful commands used in the tutorial.

Terraform

Initialise terraform (required after adding new modules):

terraform init

Plan terraform (see what changes will be made to resources):

terraform plan

Apply Teraform (make changes to resources after confirmation):

terraform apply

Destroy resources in Terraform (removes everything after confirmation):

terraform destroy

AWS CLI

Configure local EKS CLI to use cluster deployed by Terraform

aws eks --region $(terraform output -raw region) update-kubeconfig \
    --name $(terraform output -raw cluster_name)

NOTE: For Windows users, you may need to adjust the $() syntax. You can simply run terraform output to view all outputs and manually include them in the command.

Authenticate Docker with ECR

aws ecr get-login-password --region <REGION> | docker login --username AWS --password-stdin <ACCOUNT ID>.dkr.ecr.<REGION>.amazonaws.com

Docker

Build and compress image in amd46 platform architecture:

docker build -t <REPO NAME>:<REPO TAG> --platform linux/amd64 --compress .
docker push <REPO NAME>:<REPO TAG>

Kubernetes CLI (kubectl)

Get a list of running nodes in cluster:

kubectl get nodes

Apply recommended dashboard configuration:

kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.7.0/aio/deploy/recommended.yaml

Create a cluster role binding:

kubectl create clusterrolebinding serviceaccounts-cluster-admin \
  --clusterrole=cluster-admin \
  --group=system:serviceaccounts

Create an auth token for a user (required to authenticate with the Kubernetes Dashboard:

kubectl create token admin-user --duration 4h -n kubernetes-dashboard

Start the kubernetes proxy (allows access to Kubernetes dashboard and API):

kubectl proxy

NOTE: The dashboard is accessible via this URL once the proxy is running: http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/

Apply kubernetes config (requires a kustomization.yaml file in the root of the target directory):

kubectl apply -k ./path/to/config

Execute a command on a running pod (for example, to get shell or create a superuser account with Django)

kubectl exec -it <POD NAME> sh

Helm

Install EFS CSI driver in Kubernetes:

helm repo add aws-efs-csi-driver https://kubernetes-sigs.github.io/aws-efs-csi-driver/

helm upgrade -i aws-efs-csi-driver aws-efs-csi-driver/aws-efs-csi-driver \
    --namespace kube-system \
    --set image.repository=602401143452.dkr.ecr.eu-west-2.amazonaws.com/eks/aws-efs-csi-driver \
    --set controller.serviceAccount.create=true \
    --set controller.serviceAccount.name=efs-csi-controller-sa \
    --set "controller.serviceAccount.annotations.eks\\.amazonaws\\.com/role-arn"=<ROLE_ARN>

NOTE: The <ROLE_ARN> comes from the deployed resource in Terraform and can be viewed by running terraform output efs_csi_sa_role. The image.repository value is different for each region and you can find the right one in the Amazon container image repositories docs page.

Resources