This content originally appeared on DEV Community and was authored by Arpan Gautam
Previously, we utilized Angular’s environment.ts files to manage different configurations, resulting in building multiple images for each environment before deployment.
To implement the “build once, deploy many” concept in Angular, we can leverage environment files to handle different configurations for development, staging, and production.
Utilize Angular’s AppInitializer to load configurations before the application initializes. For instance, create a service that fetches configuration settings from an API based on the environment.
During the build process, use the appropriate environment configuration.
Additionally, use Docker to containerize our application. Create a multi-stage Dockerfile that builds the Angular app once and deploys it to different environments by passing environment-specific variables.
This approach ensures consistency, reduces deployment issues, and streamlines the CI/CD pipeline across all environments.
In a separate article, I will cover each step to create an AppInitializer in Angular and how to integrate it into the AppModule in detail. I'll start by explaining the purpose and benefits of using AppInitializer, followed by a step-by-step guide on setting up the service that loads configuration settings. Next, I'll illustrate how to define the APP_INITIALIZER provider in the AppModule to ensure the application waits for the configuration to load before initializing.
This comprehensive guide will help you implement robust environment-specific setups efficiently in your Angular applications.
Happy reading!
This content originally appeared on DEV Community and was authored by Arpan Gautam
Arpan Gautam | Sciencx (2025-03-11T16:48:43+00:00) Build Once ! Deploy Many :Ensuring Consistency Across Environments with Angular Docker. Retrieved from https://www.scien.cx/2025/03/11/build-once-deploy-many-ensuring-consistency-across-environments-with-angular-docker/
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