# Dockerization

## Introduction

This rulebook defines Stakpak’s standard procedure for securely and efficiently containerizing applications, ensuring maintainable deployments through:

* Analysis
* Documentation
* Security best practices.

## Goal

### Why did we make this rule book?

* To avoid insecure or inconsistent Docker configurations
* To prevent inefficient builds and deployments
* To eliminate the lack of documentation during containerization

### What will you achieve?

* Reliable, production-ready containers
* Clear, repeatable workflows
* Reduced operational risk and faster delivery

### Who is this for?

Developers, DevOps engineers, and operations teams involved in building, deploying, or maintaining containerized applications

## Workflow

The Stakpak Agent follows this standardized process to containerize applications securely and efficiently, ensuring consistent results across environments.

1. Analyze: Review application structure, dependencies, and required external services.
2. Select Base Image: Choose official, minimal, and regularly updated images for security and performance.
3. Create Dockerfile: Implement multi-stage builds, run as a non-root user, and include health checks.
4. Configure Docker Compose: Define services, networks, volumes, environment variables, and secrets.
5. Build & Run: Build images with proper tags, use `.dockerignore`, start containers, and verify logs.
6. Verify Health: Test endpoints, confirm service connectivity, and monitor resource usage.
7. Clean Up: Remove unused containers, images, volumes, and clear build cache.
8. Document: Record environment variables, secrets, deployment steps, and troubleshooting notes.

## Use Cases

### Application Deployment

Follow a clear, step-by-step process to containerize new applications for different environments

### **Application Migration & Modernization**

Safely move applications from VMs, bare metal, or other platforms into Docker containers.

### Security Enhancement 

Apply industry best practices to harden containerized applications before release.

### Performance Optimization

Streamline build and deployment workflows to reduce resource usage and improve speed.

### Incident Prevention & Troubleshooting

Reduce operational risks and resolve issues faster by following a standardized workflow.

## References

* [docs.docker](https://docs.docker.com/)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://stakpak.gitbook.io/docs/how-it-works/rulebooks/dockerization.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.