RHAIENG-565: purge the midstream repo content to only host the build artifacts, so only the redhat-distribution should remain

redhat-distribution/README.md

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+# Red Hat Distribution Build Instructions
+
+This directory contains the necessary files to build a Red Hat compatible container image for the llama-stack.
+
+## Prerequisites
+
+- Python >=3.11
+- `llama` CLI tool installed: `pip install llama-stack`
+- Podman or Docker installed
+
+## Generating the Containerfile
+
+The Containerfile is auto-generated from a template. To generate it:
+
+1. Make sure you have the `llama` CLI tool installed
+2. Run the build script from root of this git repo:
+   ```bash
+   ./redhat-distribution/build.py
+   ```
+
+This will:
+- Check for the llama CLI installation
+- Generate dependencies using `llama stack build`
+- Create a new `Containerfile` with the required dependencies
+
+## Editing the Containerfile
+
+The Containerfile is auto-generated from a template. To edit it, you can modify the template in `redhat-distribution/Containerfile.in` and run the build script again.
+NEVER edit the generated `Containerfile` manually.
+
+## Building the Container Image
+
+Once the Containerfile is generated, you can build the image using either Podman or Docker:
+
+### Using Podman build image for x86_64
+```bash
+podman build --platform linux/amd64 -f redhat-distribution/Containerfile -t rh .
+```
+
+## Notes
+
+- The generated Containerfile should not be modified manually as it will be overwritten the next time you run the build script
+
+## Push the image to a registry
+
+```bash
+podman push <build-ID> quay.io/opendatahub/llama-stack:rh-distribution
+```