No Dockerfile? No Problem! Let Your Code Find Its Build Path.

What is CNBs?

Buildpacks were introduced by Heroku in 2011. The CNB project was initiated by Pivotal and Heroku in January 2018 and joined the Cloud Native Computing Foundation (CNCF) as an Apache-2.0 licensed project in October 2018.

Cloud-native build packs (CNBs) transform your application source code into container images that can run on any cloud.

Cloud Native Buildpacks embrace modern container standards, such as the OCI image format.

• With buildpacks, organizations can concentrate the knowledge of container build best practices within a specialized team, instead of having application developers across the organization individually maintain their Dockerfiles.

• This makes it easier to know what is inside application images, enforce security and compliance requirements, and perform upgrades with minimal effort and intervention.

Why CNBs ?

Control: Balanced control between App Devs and Operators

Compliance: Ensure apps meet security and compliance requirements.

Maintainability: Perform upgrades with minimal effort and intervention.

FEATURES OF CNBs:-

1. Auto-Detection of your programming Language and its Version

2. Direct Image Building from Source without additional instructions

3. Buildpacks support various programming languages and advanced caching

4. The image contains only what is strictly necessary for running the application

5. Production-Ready Buildpacks Maintained by the Community

Deploy NodeJS and Django applications using Cloud Native Builpacks

• prerequisites:-

• • Login to the AWS account

    • An Ubuntu EC2 machine t2.micro (t2.micro is ok if you are using a simple application)

    • update your machine then install Docker and give permission to the Ubuntu user to docker group

    • steps:-

      1. sudo apt update

      2. sudo apt installdocker.io-y

      3.sudo usermod -aG docker $USER && newgrp docker

    • 

    • After that add the repo and Install the pack utility to build the image

      sudo add-apt-repository ppa:cncf-buildpacks/pack-cli

      sudo apt-get update

      sudo apt-get install pack-cli

    • Clone your repo and if there is a Dockerfile and docker-compose delete it to make sure that here instead of docker file or compose we use build packs to run our applications

      1. git clone <your repo URL>

         

      2. Go inside the repo cd node-todo-cicd if there is a Dockerfile or docker-compose then you can delete it for more clarity that you are building here by Build-packs

      3. rm -rv Dockerfile and rm -rv docker-compose.yaml

      4. To get the suggested pack builder pack build suggest

         

      5. choose them, pack builder as suggested pack build --builder=<your-builder-from-above-command> app name

         

      6. After building you can check the image docker images

      7. Run the application and give port accordingly docker run -itd --name nodeapp -p 8000:8000 node-js-app

         

      8. Go to the security group and edit inbound rules add port 8000 and save rules for accessing your application

         

      9. http://<public-ip>:8000

         

         Imp point: Your application is now running in a lightweight and optimized container image

         Amazing Job!!! 🎉 You have successfully built and deployed your application with Cloud Native Buildpacks. 🚀