Update Docker to use uv

Author: jb3

.dockerignore

@@ -4,5 +4,5 @@
 # Make exceptions for what's needed
 !bot
 !pyproject.toml
-!poetry.lock
+!uv.lock
 !LICENSE

Dockerfile

@@ -1,17 +1,38 @@
-FROM --platform=linux/amd64 ghcr.io/owl-corp/python-poetry-base:3.12-slim
+ARG python_version=3.12-slim
 
-# Install dependencies
-WORKDIR /bot
-COPY pyproject.toml poetry.lock ./
-RUN poetry install --without dev
+FROM python:$python_version AS builder
+COPY --from=ghcr.io/astral-sh/uv:0.7 /uv /bin/
+
+ENV UV_COMPILE_BYTECODE=1 \
+  UV_LINK_MODE=copy
+
+# Install project dependencies with build tools available
+WORKDIR /build
+RUN pip install --no-cache-dir --upgrade pip setuptools wheel \
+  && python -m venv .venv
+
+RUN --mount=type=cache,target=/root/.cache/uv \
+  --mount=type=bind,source=uv.lock,target=uv.lock \
+  --mount=type=bind,source=pyproject.toml,target=pyproject.toml \
+  uv sync --frozen --no-dev
 
-# Set SHA build argument
+# -------------------------------------------------------------------------------
+
+FROM python:$python_version
+
+# Define Git SHA build argument for sentry
 ARG git_sha="development"
 ENV GIT_SHA=$git_sha
 
-# Copy the rest of the project code
+# Install dependencies from build cache
+# .venv not put in /app so that it doesn't conflict with the dev
+# volume we use to avoid rebuilding image every code change locally
+COPY --from=builder /build /build
+ENV PATH="/build/.venv/bin:$PATH"
+
+# Copy the source code in last to optimize rebuilding the image
+WORKDIR /bot
 COPY . .
 
-# Start the bot
-ENTRYPOINT ["poetry", "run"]
-CMD ["python", "-m", "bot"]
+ENTRYPOINT ["python", "-m"]
+CMD ["bot"]