feat(docker): optimize build times

Dockerfile

@@ -1,34 +1,45 @@
-FROM rust:1.90-slim-trixie AS builder
+FROM lukemathwalker/cargo-chef:latest-rust-1 AS chef
 WORKDIR /app
 
-COPY Cargo.toml Cargo.lock ./
+
+FROM chef AS planner
 COPY . .
+RUN cargo chef prepare --recipe-path recipe.json
+
+
+FROM chef AS builder-rs
+COPY --from=planner /app/recipe.json recipe.json
+# Build dependencies - this is the caching Docker layer!
+RUN cargo chef cook --release --recipe-path recipe.json
+# Build application
+COPY . .
+RUN cargo build --release
+
+
+FROM ghcr.io/astral-sh/uv:trixie-slim AS builder-py
+ENV UV_COMPILE_BYTECODE=1 UV_LINK_MODE=copy
+
+# Configure the Python directory so it is consistent
+ENV UV_PYTHON_INSTALL_DIR=/python
+
+# Only use the managed Python version
+ENV UV_PYTHON_PREFERENCE=only-managed
+
+# Install Python before the project for caching
+RUN uv python install 3.13
 
 RUN apt-get update -y \
     && apt-get install -y --no-install-recommends \
     pkg-config libssl-dev ca-certificates ffmpeg \
     && rm -rf /var/lib/apt/lists/*
 
-RUN cargo build --release
-
-FROM python:3-slim AS runtime
-FROM python:3.12-slim-trixie
-COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
-
-ENV TZ=UTC
-ENV RUST_LOG=info
-ENV PATH=/home/app/.local/bin:$PATH
-
-RUN useradd --create-home --shell /bin/bash app
-WORKDIR /home/app
-USER app
+RUN --mount=type=cache,target=/root/.cache/uv
 
+# Intstall deps
 RUN uv tool install instaloader \
-    && instaloader --version
-
-RUN uv tool install yt-dlp \
+    && instaloader --version \
+    && uv tool install yt-dlp[default] \
     && yt-dlp --version
 
-COPY --from=builder /app/target/release/tg-relay-rs /usr/local/bin/tg-relay-rs
-
+COPY --from=builder-rs /app/target/release/tg-relay-rs /usr/local/bin/tg-relay-rs
 CMD ["/usr/local/bin/tg-relay-rs"]