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Community Blog Blog 2: Factor 1 - Codebase: Managing a Single Codebase Across Multiple Deploys with Alibaba Cloud

Blog 2: Factor 1 - Codebase: Managing a Single Codebase Across Multiple Deploys with Alibaba Cloud

This article explores the first principle of the 12 Factor App methodology: Codebase—"One codebase tracked in version control, many deploys.

Blog 2: Factor 1 – Codebase: One Codebase, Many Deploys (with Help from Alibaba Cloud)

In our last post, we talked about the 12 Factor App methodology—a set of best practices for building modern, scalable web applications. Now, let’s dive into the first factor: Codebase.

What Does “One Codebase” Actually Mean?

The idea behind this factor is simple but powerful:

You should have a single codebase, tracked in version control, that gets deployed to multiple environments.

In other words, whether you’re deploying to development, staging, or production, it should all come from one source of truth—one Git repository.

This keeps things clean and consistent. You avoid the mess of managing multiple versions of your app for different environments or clients, and you make it easier for your team to collaborate, track changes, and debug issues.

Common Mistake to Avoid

It might be tempting to copy your codebase into separate repos for different customers or environments, but this quickly becomes hard to manage. Instead, keep one codebase and rely on environment-specific configuration, which we’ll cover in detail when we get to Factor 3.


Bringing the Codebase Principle to Life with Alibaba Cloud

Now, let’s look at how Alibaba Cloud can help you stick to this principle while still giving you the flexibility to manage multiple environments.

1. Version Control & Integration

Even though Alibaba Cloud doesn’t host its own Git service, it integrates seamlessly with platforms like GitHub, GitLab, and Gitee. You can manage your codebase there, and then use Alibaba Cloud CodePipeline to handle builds and deployments.

2. CI/CD Pipelines Made Easy

Using CodePipeline, you can:

  • Automatically trigger builds when someone pushes code to the main branch
  • Deploy the same codebase to different environments (like dev, staging, or production)
  • Inject environment-specific settings securely using Secrets Manager

Everything stays consistent and automated.

3. Containerization for Flexibility

If you're using Docker, Alibaba Cloud has you covered:

  • Alibaba Cloud Container Registry (ACR) stores your container images
  • Alibaba Cloud Kubernetes (ACK) or Function Compute can run those containers across multiple environments or regions
  • You only build once, then deploy the same image multiple times—no surprises

A Quick Example: One Codebase, Multiple Deployments

Here’s how a typical flow might look:

  1. You store your code in GitHub
  2. A CodePipeline on Alibaba Cloud triggers on every push
  3. Your code is packaged into a Docker image and pushed to ACR
  4. That image is deployed to:

    • A staging Kubernetes cluster for testing
    • A production cluster once approved
  5. Environment-specific configs (like API keys or database URLs) are injected using Secrets Manager or ConfigMaps

The result? You’re deploying the same app across multiple environments—but without ever duplicating the codebase.


Final Thoughts

The first factor is all about centralizing your code, and letting your environments vary only by config. Alibaba Cloud makes it easy to do just that, thanks to its tight CI/CD integrations, container support, and secure configuration tools.


Up Next

In our next post, we’ll look at Factor 2: Dependencies—and how you can declare and isolate your app’s dependencies properly using tools like ACR, Function Compute, and more. This helps prevent the classic “it works on my machine” issues and gives you reliable builds every time.

Stay tuned, and don’t forget to subscribe to get the full 12-part series as it rolls out.

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