updated readme

README.md

@@ -1 +1,58 @@
-# container-registry
+This repository centralizes all Docker images in one place, simplifying the process of building and pushing Docker images. 
+
+## Purpose
+
+The primary goal of this repository is to streamline Docker image management by:
+
+- **Gathering all Docker images**: Consolidates Dockerfiles into a single repository.
+- **Automating the build and push process**: Uses GitHub Actions to build and push Docker images based on commit messages.
+
+## Folder Structure
+
+Organize your repository as follows to ensure compatibility with the workflow:
+
+```
+/
+  app1/
+    Dockerfile
+  app2/
+    Dockerfile
+```
+
+- Each directory (`app1`, `app2`, etc.) should contain a `Dockerfile`.
+- The name of each directory corresponds to the Docker image name.
+
+## Commit Message Format
+
+To trigger the Docker build and push process, format your commit messages as follows:
+
+```
+build/<image_name>:<version>
+```
+
+- `<image_name>`: The directory name containing the `Dockerfile`.
+- `<version>`: The version tag for the Docker image.
+
+### Examples
+
+1. **Commit Message for `app1` Docker Image with Version 1.0.0**:
+   ```
+   build/app1:1.0.0
+   ```
+
+2. **Commit Message for `app2` Docker Image with Version 2.1.0**:
+
+   ```
+   build/app2:2.1.0
+   ```
+
+## Workflow Behavior
+
+- **Valid Commits**: Commits with messages that match the `build/<image_name>:<version>` format will trigger the Docker image build and push process.
+- **Invalid Commits**: Commits not following the specified format will be skipped. The CI process will not build or push Docker images for these commits, ensuring that only relevant updates are processed.
+- 
+## Summary
+
+By following these conventions, you ensure that Docker images are built and pushed automatically whenever a commit with the correct format is made. This approach helps maintain a well-organized repository and simplifies Docker image management.
+
+For more information on GitHub Actions and Docker, check out the [GitHub Actions documentation](https://docs.github.com/en/actions) and [Docker documentation](https://docs.docker.com/).