Guys Recently I have created a playlist on youTube explaining things about Nest JS Microservices and how to add 12 factor principles in this microservice

Let's Talk about this a bit More

12 Factor App

The Twelve-Factor App methodology is a methodology for building software-as-a-service applications. These best practices are designed to enable applications to be built with portability and resilience when deployed to the web

https://en.wikipedia.org/wiki/Twelve-Factor_App_methodology

I have created this playlist to cover all these aspects by showing how all these can be applied to a simple nestjs service.

We started with basic nestjs app and setting up all different aspect of a clean microservice

• like linting
• test setup using jest for e2e and unit tests
• CI/CD setup for app deployment
• build and Migration script
• Modular structure for application modules
• health checks and application monitoring with security modules

Baseline template
https://github.com/tkssharma/12-factor-app-microservices/tree/master/nestjs-typeorm-postgres-baseline%20%2301

The twelve-factor methodology is not specific to Node.js and much of these tips are already general enough for any cloud.gov application.

• Pin Down NPM Package Versions with Yarn.lock
• Use Git Flow as a Reliable Version Control Model
• Manage Configuration Values with Environment Variables
• Build, Release and Run Containers with Docker Compose
• Run Stateless Docker Containers
• Export Services with Docker Port Binding
• Scale Docker Horizontally with Nginx Load Balancing
• Ensure Containers Run with High-Availability
• Run Consistent Dev, Stage & Prod Docker Environments
• Pipe Log Output to STDOUT with Docker

Please let me know if this helped in building microservices using all these 12 factors.