counter_new

1. Connect to aws

2. Crate ec2 machine (t2_micro)

3. Play with flask – set to work on port 80 – mistake , since we can achieve this by port forwarding on the deployed container / load balancer later in the exercise

4. Prepare container for flask app (minimal linux and python - python:3.8-slim-buster) a. App.py b. Dockerfile c. docker build --tag counter_new . d. docker run --publish 5000:5000 --name counter_new_process counter_new running without –d shows output on the screen e. debug – connect to the contained process: docker exec -it counter_new_process /bin/bas

5. Push to docker hub, and good tagging convension:

build with significant tag

docker build --rm -f Dockerfile -t arielao/counter_new:$(git show -s --format=%ct-%h) -t arielao/counter_new:latest .

push all tags – use latest in your code

docker push arielao/counter_new --all-tags

#run docker:

docker run -d --publish 5000:5000 --name counter_new_process counter_new replace counter_new with arielao/counter_new if you want to run from repo (as container will)

(To run with docker-compose docker-compose -f docker-compose.dev.yml up –build)

6. Install Terraform (Terraform, awscli, main.tf, create eks) https://learn.hashicorp.com/tutorials/terraform/install-cli?in=terraform/aws-get-started install terraform / windows

https://learn.hashicorp.com/tutorials/terraform/aws-build In this tutorial, you will provision an EC2 instance on Amazon Web Services (AWS). EC2 instances are virtual machines running on AWS, and a common component of many infrastructure projects.

connect to aws account use existing keypair

https://learn.hashicorp.com/tutorials/terraform/eks https://learnk8s.io/terraform-eks https://learnk8s.io/terraform-eks#you-can-provision-an-eks-cluster-with-terraform-too

7-9 covered in https://docs.docker.com/language/python/build-images/ https://docs.docker.com/language/python/run-containers/ https://docs.docker.com/language/python/develop/ https://docs.docker.com/language/python/configure-ci-cd/

7. Create container from #5 deployment.yaml C:\Users\ariela\counter_new>kubectl apply -f .\deployment.yaml

8. Create Load Balancer for container in #7 service-loadbalancer.yaml C:\Users\ariela\counter_new>kubectl apply -f .\service-loadbalancer.yaml (port forwarding is done in above yaml and achieves the same as: C:\Users\ariela\counter_new>kubectl port-forward hello-kubernetes-59fc9f9c46-jnfm9 80:5000

To replace the old with new deployment – (in CD process)

C:\Users\ariela\learn-terraform-provision-eks-cluster>kubectl rollout restart deploy hello-kubernetes deployment.apps/hello-kubernetes restarted

Help on CD process
How to deploy from docker hub to aws esk:

https://github.com/marketplace/actions/kubectl-aws-eks

9. CI/CD process as describes in: https://docs.docker.com/language/python/configure-ci-cd/