Typically, we first write and test our applications and then work on containerizing them right before shipping or deployment. For most of us, the first time our application actually runs in a container is in production. This is not ideal as it causes issues with containerization to be discovered too late in the development cycle. An alternative approach is to introduce containers from the very get-go of the application development process. The core idea behind Container Driven Development is to write, execute and test every line of code inside a containerized environment from the very beginning of the application development cycle. The biggest advantage this has is that it enables us to develop and test our application in an environment that could be made to look and behave exactly like our production environment.

1. Containerization Driven
Development
(CDD)
Docker Meetup
Build, Test and Deploy Apps
using Docker Containers

3. Typical Software Development Life Cycle

4. Typical inclusion of Docker in the SDLC
Add Docker
to support
your project

5. CDD - The Better Approach
● Write, execute and test every line of code inside a
containerized environment from the very beginning of
the application development cycle.
● Ship tested and certified images to the docker registry
via CICD or manual pushes.
● Automated or manual deployments of containers
based on updated Docker images
● The biggest advantage this has is that it enables us to
develop and test our application in an environment
that could be made to look and behave exactly like
our production environment.
Add Docker to
support your project

8. Knowledge Base for CDD
● Docker
● Docker Compose
● Your source code and dependencies

9. Tech Stack Consideration
● What’s your tech stack?
● Is your application using or being used by any
external package, application or service? E.g.
MySQL, Redis, PHPMyAdmin, etc.
● Is there a Docker image for these external packages,
applications or services?
● Can they be Dockerized / Containerized?
● Can all your application be deployed in a single
action?

11. Sounds scary?
https://dockertraining.readthedocs.io/en/latest
/container-driven-development.html

12. 12
Questions?

13. THANK YOU :)