Add readme

Signed-off-by: Joe Block <jpb@unixorn.net>

Author: unixorn

Readme.md

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+# moosefs-docker
+
+## Status
+
+[![License](https://img.shields.io/github/license/unixorn/moosefs-docker.svg)](https://opensource.org/licenses/BSD-3-Clause)
+![Awesomebot](https://github.com/unixorn/moosefs-docker/actions/workflows/awesomebot.yml/badge.svg)
+[![GitHub stars](https://img.shields.io/github/stars/unixorn/moosefs-docker.svg)](https://github.com/unixorn/moosefs-docker/stargazers)
+[![GitHub last commit (branch)](https://img.shields.io/github/last-commit/unixorn/moosefs-docker/main.svg)](https://github.com/unixorn/moosefs-docker)
+
+This contains Dockerfiles for [moosefs](https://moosefs.com/).
+
+## Usage
+
+The following multi-architecture (`arm64`, `armh/v7`, `amd64`) images are available on hub.docker.com:
+
+- unixorn/moosefs-cgiserver
+- unixorn/moosefs-chunkserver
+- unixorn/moosefs-master
+- unixorn/moosefs-metalogger
+
+## Building
+
+You can make the images yourself with `make multiarch_images`.
+
+If you need to support a platform other than `arm64`, `armh/v7` or `amd64`, the easiest thing to do is to edit the Makefile and change `HUB_USER` to your docker hub username and update `PLATFORMS` to include whatever other architectures you need, then run `make multiarch_images` to build new images.
+
+This allows you to use just `your-hub-username/imagename` in your docker-compose files or kubernetes deployments and not have different image names for different architectures.