Rewrite README for clarity and accuracy
- Simplify build steps in README - Add `make configure` for custom builds - Recommend using `make paper` for PaperMC server setup - Advise tagging images for private repository - Highlight the importance of managing your own compose files
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README.md
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README.md
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# Minecraft Docker Image
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This Dockerfile sets up a Minecraft server based on the `debian-slim` image.
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# Minecraft Container Image
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## Quick Start
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By running the following and building this image, you are agreeing to
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[Minecraft's EULA](https://www.minecraft.net/en-us/eula):
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Assume a clean repository (i.e., without .env and plugins.json in the top
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directory), and Docker cache. You can use `make clean` to clear specific
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default images and prune the unused build cache. However, you'll still need to
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inspect all containers and images to ensure you've removed them all.
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- `make clean` only removes certain images and prunes the builder cache.
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### Steps
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1. **Configure your build:**
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```
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make configure
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```
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This defaults to `make configure BUILD=basic`, but if you have directories
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in `./scratch`, you can specify those build names here. Repository-included
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builds are in`./builds`, but it's advised to copy `./builds/basic` or
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whichever build configuration you are basing off and copy it into
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`./scratch/X` to control your settings apart from the repository. This
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separation allows you to manage your configurations independently and avoid
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overwriting repository defaults.
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2. **Build the PaperMC server:**
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```
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make paper
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```
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This builds the PaperMC server, which is likely what you want unless you
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prefer a 100% vanilla server experience. PaperMC is recommended for its
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performance benefits and support for Bukkit API server mods. Both
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EssentialsX and WorldGuard suggest using Paper for better performance and
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stability.
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3. **(Optional) Install for testing:**
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```
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make install
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```
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This runs `docker compose up -d` and brings up a `minecraft-minecraft-1`
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network/container compose stack using the `.env` and `plugins.json` in the
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root of the repository. It includes settings for image overrides, the
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`EULA` agreement, and a `DEBUG` option for the custom `entrypoint.sh`
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script, Java options (defaulting to `-Xms1G -Xmx2G`), and the ability to
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set any `server.properties` file entry using the `SETTINGS_` prefix in the
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compose file. The purpose of `make install` is for testing only, and it is
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advised not to rely on it for managing an actual server deployment. You
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will likely want to add other settings not specified in the
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`docker-compose.yml` and manage your own compose files.
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## Additional Notes
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### Image Management
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All images are tagged with `localhost/minecraft`, etc. It's acceptable not to
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override these default image names and just tag your own versions after
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building the `localhost` images. The images will include git hash information
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for extra traceability.
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After using the quick start, you'll get something like this:
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```
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echo "EULA=true" > .env
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$ docker image ls
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REPOSITORY TAG IMAGE ID CREATED SIZE
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localhost/minecraft 1.20.1-paper 814edda474c4 9 seconds ago 568MB
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localhost/minecraft-jre latest 50350d8d3947 30 seconds ago 379MB
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```
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Build the image using the Makefile:
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It is advisable to tag your own images and push them to a private container
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repository, as you'll want to avoid pushing these images to a public DockerHub
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repository due to the Minecraft EULA with typical proprietary software
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non-redistribution rules.
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```
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make build
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docker tag localhost/minecraft:1.20.1-paper example.org/minecraft:1.20.1-paper
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docker push example.org/minecraft:1.20.1-paper
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```
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Optionally, build _and_ run to test it:
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```
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make install
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```
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Feel free to use `docker compose` directly to build and test:
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```
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docker compose build
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docker compose up -d
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docker logs -f minecraft-minecraft-1
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```
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## Copyright and License
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Copyright (C) 2024 Kris Lamoureux
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[](https://www.gnu.org/licenses/gpl-3.0)
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This program is free software: you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation, version 3 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program. If not, see <https://www.gnu.org/licenses/>.
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## License
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This project is licensed under the GPLv3 License. See the LICENSE file for details.
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