Switch to uv

Author: Munkkeli

.diploi/helm/app.yaml

@@ -41,10 +41,7 @@ spec:
           command:
             - /bin/sh
             - -c
-            - |
-              python -m venv --copies .venv
-              . ./.venv/bin/activate
-              pip install --no-cache-dir -r requirements.txt
+            - uv sync
           workingDir: /app/{{ .Values.identifier }}
           volumeMounts:
             - name: app-mount

.envrc

@@ -1 +1 @@
-layout python-venv .venv
+source .venv/bin/activate

.python-version

@@ -0,0 +1 @@
+3.13

Dockerfile

@@ -1,16 +1,31 @@
-FROM python:3.13-slim AS base
+# Use a Python image with uv pre-installed
+FROM ghcr.io/astral-sh/uv:python3.13-alpine
 
 # This will be set by the GitHub action to the folder containing this component.
 ARG FOLDER=/app
 
-COPY . /app
 WORKDIR ${FOLDER}
 
-# Install dependencies
-RUN pip install --no-cache-dir -r requirements.txt
+# Enable bytecode compilation
+ENV UV_COMPILE_BYTECODE=1
+
+# Copy from the cache instead of linking since it's a mounted volume
+ENV UV_LINK_MODE=copy
+
+# Ensure installed tools can be executed out of the box
+ENV UV_TOOL_BIN_DIR=/usr/local/bin
+
+COPY . /app
+RUN uv sync --locked --no-dev
+
+# Place executables in the environment at the front of the path
+ENV PATH="$FOLDER/.venv/bin:$PATH"
+
+# Reset the entrypoint, don't invoke `uv`
+ENTRYPOINT []
 
 EXPOSE 8000
 ENV PORT=8000
 ENV HOST="0.0.0.0"
 
-CMD ["python", "src/main.py"]
+CMD ["uv", "run", "--frozen", "src/main.py"]

Dockerfile.dev

@@ -1,11 +1,24 @@
-FROM python:3.13-slim
+# Use a Python image with uv pre-installed
+FROM ghcr.io/astral-sh/uv:python3.13-alpine
 
 # This will be set by the GitHub action to the folder containing this component.
 ARG FOLDER=/app
 
 COPY --chown=1000:1000 . /app
 WORKDIR ${FOLDER}
 
+# Enable bytecode compilation
+ENV UV_COMPILE_BYTECODE=1
+
+# Copy from the cache instead of linking since it's a mounted volume
+ENV UV_LINK_MODE=copy
+
+# Ensure installed tools can be executed out of the box
+ENV UV_TOOL_BIN_DIR=/usr/local/bin
+
+# Place executables in the environment at the front of the path
+ENV PATH="$FOLDER/.venv/bin:$PATH"
+
 # Install Node.js and nodemon for easy watch mode with Python
 USER root
 RUN apt-get update \
@@ -18,11 +31,11 @@ RUN apt-get update \
 
 USER 1000:1000
 
-# Setup venv
-ENV PATH="$FOLDER/.venv/bin:$PATH"
+# Reset the entrypoint, don't invoke `uv`
+ENTRYPOINT []
 
 EXPOSE 8000
 ENV PORT=8000
 ENV HOST="0.0.0.0"
 
-CMD ["/usr/bin/nodemon", "--delay", "1", "--exec", ".venv/bin/python", "src/main.py"]
+CMD ["/usr/bin/nodemon", "--delay", "1", "--exec", ".venv/bin/python", "src/main.py"]

README.md

@@ -2,14 +2,14 @@
 
 # Python Component for Diploi
 
-Uses the official [python](https://hub.docker.com/_/python) Docker image.
+Uses [uv](https://docs.astral.sh/uv/) to manage Python versions & packages.
 
 ## Operation
 
 ### Development
 
-Will activate a virtual environment in `.venv` and run `pip install -r requirements.txt` when component is first initialized, and `python src/main.py` when deployment is started.
+Will activate a virtual environment in `.venv` and run `uv sync` when component is first initialized, and `python src/main.py` when deployment is started.
 
 ### Production
 
-Will build a production ready image. Image runs `pip install -r requirements.txt` when being created. Once the image runs, `python src/main.py` is called.
+Will build a production ready image. Image runs `uv sync` when being created. Once the image runs, `python src/main.py` is called.

pyproject.toml

@@ -0,0 +1,9 @@
+[project]
+name = "hello-world"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.13"
+dependencies = [
+    "numpy>=2.3.2",
+]