Simplify build process and improve README

Dockerfile

@@ -2,20 +2,12 @@ FROM rust:1.86.0-alpine3.21 AS base
 RUN apk add --no-cache musl-dev git
 RUN cargo install cargo-chef --locked --version 0.1.71
 WORKDIR /app
-RUN git config --global --add safe.directory /app
 ARG FEATURES
 RUN addgroup --gid 25565 --system composition && adduser --uid 25565 --system --ingroup composition --home /app composition
 RUN chown -R composition:composition /app
 RUN chown -R composition:composition /usr/local/cargo
 USER composition
-
-FROM base AS dev
-RUN cargo install cargo-watch --locked --version 8.5.3
-VOLUME /app
-VOLUME /app/.git
-EXPOSE 25565
-ENTRYPOINT ["cargo", "watch", "-x"]
-CMD ["run -- server"]
+RUN git config --global --add safe.directory /app
 
 FROM base AS planner
 COPY Cargo.toml .
@@ -33,12 +25,12 @@ COPY .git .git
 RUN cargo build --release --no-default-features --features $FEATURES
 RUN strip target/release/composition
 
-FROM alpine:3.21 AS prod
+FROM alpine:3.21
 RUN apk add --no-cache tini
 RUN addgroup --gid 25565 --system composition && adduser --uid 25565 --system --ingroup composition --home /app composition
 VOLUME /app/data
 WORKDIR /app/data
-COPY --from=builder /app/target/release/composition /app
+COPY --from=builder /app/target/release/composition /usr/bin
 EXPOSE 25565
 USER composition
-ENTRYPOINT ["tini", "--", "/app/composition"]
+ENTRYPOINT ["tini", "--", "/usr/bin/composition"]

README.md

@@ -1,33 +1,117 @@
-# Composition
+# 📓 Composition
 
 Composition is a new Minecraft server written from the ground-up in Rust.
 
 Composition is targeting Minecraft version 1.21.1, protocol version 767.
-The main goal is to get a working server, then optimize for speed (multi-threading/kubernetes/etc).
+The main goal is to get a working server, then optimize for speed
+(multi-threading/kubernetes/etc).
 
 Composition is my personal project to learn more about networking,
-game development, and Rust and is not currently intended for production use.
+game development, Rust, Docker, and CI/CD pipelines.
+Composition is not currently intended for production use.
 I want to use it as a platform to experiment with ideas about how a Minecraft
 server could work, such as a tickless design, one that could run across a distributed
 kubernetes cluster, or a world as a database that's accessed by multiple servers.
 
-## Getting Started
+## 🚀 Getting Started
 
-- The only prerequisite for running Composition is to have Docker and Docker Compose installed.
-- Clone the project: `git clone https://github.com/garentyler/composition.git`
-- Run it in proxy mode: `docker compose --profile proxy up`
+- The only prerequisite for running Composition is to have Docker installed.
+- Pull the latest version of the Docker image:
+  `docker pull git.garen.dev/garentyler/composition:latest`
+- Make sure a folder exists for the it to store its data. The uid/gid of the
+  process inside the container is `25565:25565`, so make sure the folder
+  is writable by that user.
 
-  Proxy mode will start an instance of `itzg/minecraft-server` on port 25565 and
-  the Composition proxy in 25566. This is useful for testing packet parsing and
-  handling.
-- Run it in server mode: `docker compose --profile server up`
+  To get the right file permissions, you can run the following:
 
-  Server mode starts Composition on port 25566.
-  This is useful for testing the server logic and world generation.
-- To build release images, use `docker buildx bake -f docker-bake.hcl`.
-  This will create a multi-arch image that can be run on amd64 and arm64.
+  ```sh
+  mkdir -p composition-server
+  sudo chown -R 25565:25565 composition-server
+  sudo chmod -R 775 composition-server
+  ```
 
-## Project Structure
+### 🕹️ Running Composition as a Server
+
+Standalone command:
+
+```sh
+docker run -it -v .:/app/data --network host git.garen.dev/garentyler/composition server
+```
+
+Example docker-compose.yml file:
+
+```yml
+services:
+  # Composition running as a server.
+  composition-server:
+    image: git.garen.dev/garentyler/composition:latest
+    container_name: composition-server
+    restart: unless-stopped
+    ports:
+      - "25565:25565"
+    volumes:
+      - ./composition-server:/app/data
+    command: server
+```
+
+### 🌐 Running Composition as a Proxy
+
+Standalone command:
+
+```sh
+docker run -it -v .:/app/data --network host git.garen.dev/garentyler/composition proxy
+```
+
+Example docker-compose.yml file:
+
+```yml
+services:
+  # Example Minecraft server to run as a reference.
+  reference:
+    image: itzg/minecraft-server
+    container_name: reference
+    restart: unless-stopped
+    ports:
+      - "25565:25565"
+    environment:
+      EULA: "TRUE"
+      VERSION: "1.21.1"
+  # Composition running as a proxy.
+  composition-proxy:
+    image: git.garen.dev/garentyler/composition:latest
+    container_name: composition-proxy
+    restart: unless-stopped
+    depends_on:
+      reference:
+        condition: service_healthy
+        restart: true
+    ports:
+      - "25566:25566"
+    volumes:
+      - ./composition-proxy:/app/data
+    command: proxy -U reference
+```
+
+## 🛠️ Building From Source
+
+To build Composition from source, you will need to have Rust and Cargo installed.
+The stable toolchain is recommended, but the nightly toolchain may be required for some features.
+
+```sh
+cargo build --release
+```
+
+To build the Docker image, you will need to have Docker configured with Bake.
+
+```sh
+# To build both linux/amd64 and linux/arm64 images, use the following command:
+docker buildx bake -f docker-bake.hcl
+
+# To build only the linux/amd64 image, use the following command:
+docker buildx bake -f docker-bake.hcl --set default.platform=linux/amd64
+```
+
+## 🏗️ Project Structure
 
 Composition is built using the async runtime and networking from Tokio.
 On startup, Composition sets up logging, reads the configuration, and
@@ -36,7 +120,7 @@ start in (server, proxy, world, etc). The subcommand performs any
 startup tasks, such as loading the world, and then begins the main
 event loop.
 
-### Cargo Features
+### 🦀 Cargo Features
 
 Composition has a non-optional core and multiple cargo features that can be enabled or disabled to configure functionality.
 
@@ -46,7 +130,7 @@ The `proxy` feature enables the `composition proxy` command, which runs a proxy
 
 The `world` feature is not yet implemented. When finished, it will host a world server that can be accessed by multiple server cores.
 
-## Useful Resources
+## 📋 Useful Resources
 
 - [wiki.vg archive](https://minecraft.wiki/w/Minecraft_Wiki:Projects/wiki.vg_merge) (now merged with the Minecraft wiki)
 - [Protocol Specification](https://minecraft.wiki/w/Java_Edition_protocol)

docker-bake.hcl

@@ -18,7 +18,6 @@ target "default" {
     "${REGISTRY}/composition:${RELEASE_VERSION}",
     "${REGISTRY}/composition:${GITHUB_SHA}"
   ]
-  target = "prod"
   args = {
     FEATURES = "server,proxy"
   }

docker-compose.yml

@@ -1,47 +1,12 @@
-# This file is only meant to provide a simple dev environment.
-# For prod images, look at docker-bake.hcl.
+# This file is only meant to provide a convenient dev environment.
+# For prod images, look at docker-bake.hcl and README.md.
 services:
-  server:
-    container_name: composition
-    restart: unless-stopped
-    profiles: [server]
-    build:
-      context: .
-      dockerfile: Dockerfile
-      target: dev
-    command: [ "run -- server" ]
-    ports:
-      - "25566:25565"
-    volumes:
-      - .:/app
-      - .git:/app/.git
   reference:
     container_name: reference
     restart: unless-stopped
-    profiles: [server, proxy]
     image: itzg/minecraft-server
     ports:
       - "25565:25565"
     environment:
       EULA: "TRUE"
       VERSION: "1.21.1"
-  proxy:
-    container_name: composition-proxy
-    restart: unless-stopped
-    profiles: [proxy]
-    build:
-      context: .
-      dockerfile: Dockerfile
-      target: dev
-    depends_on:
-      reference:
-        condition: service_healthy
-        restart: true
-    command: [ "run -- proxy -U reference -l trace" ]
-    ports:
-      - "25566:25566"
-    volumes:
-      - .:/app
-      - .git:/app/.git
-    environment:
-      CARGO_HOME: "/app/.cargo"