update to copier template branch fix-dockerfile (uv)

.copier-answers.yml

@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier
-_commit: 4.2.0
+_commit: 5.0.0a1-3-g470d4fc
 _src_path: https://github.com/diamondlightsource/python-copier-template
 author_email: giles.knap@diamond.ac.uk
 author_name: Giles Knap

.devcontainer/devcontainer.json

@@ -7,13 +7,18 @@
     },
     "remoteEnv": {
         // Allow X11 apps to run inside the container
-        "DISPLAY": "${localEnv:DISPLAY}"
+        "DISPLAY": "${localEnv:DISPLAY}",
+        // Do the equivalent of "activate" the venv so we don't have to "uv run" everything
+        "PATH": "/workspaces/${localWorkspaceFolderBasename}/.venv/bin:${containerEnv:PATH}"
     },
     "customizations": {
         "vscode": {
             // Set *default* container specific settings.json values on container create.
             "settings": {
-                "python.defaultInterpreterPath": "/venv/bin/python"
+                "python.defaultInterpreterPath": "/workspaces/${localWorkspaceFolderBasename}/.venv/bin/python",
+                "python.terminal.activateEnvInCurrentTerminal": false,
+                "python.terminal.activateEnvironment": false,
+                "remote.autoForwardPorts": false
             },
             // Add the IDs of extensions you want installed when the container is created.
             "extensions": [
@@ -27,20 +32,35 @@
             ]
         }
     },
-    "features": {
-        // add in eternal history and other bash features
-        "ghcr.io/diamondlightsource/devcontainer-features/bash-config:1": {}
-    },
-    // Create the config folder for the bash-config feature
-    "initializeCommand": "mkdir -p ${localEnv:HOME}/.config/bash-config",
+    // Create the config folder for the bash-config feature and uv cache
+    "initializeCommand": "mkdir -p ${localEnv:HOME}/.config/terminal-config ${localEnv:HOME}/.cache/uv",
     "runArgs": [
         // Allow the container to access the host X11 display and EPICS CA
         "--net=host",
         // Make sure SELinux does not disable with access to host filesystems like tmp
         "--security-opt=label=disable"
     ],
+    "mounts": [
+        // Mount in the user terminal config folder so it can be edited
+        {
+            "source": "${localEnv:HOME}/.config/terminal-config",
+            "target": "/user-terminal-config",
+            "type": "bind"
+        },
+        // Keep a persistent cross container cache for uv
+        {
+            "source": "${localEnv:HOME}/.cache/uv",
+            "target": "/root/.cache/uv",
+            "type": "bind"
+        },
+        // Use a volume mount for the uv venv so it is local to the container
+        {
+            "target": "/workspaces/${localWorkspaceFolderBasename}/.venv",
+            "type": "volume"
+        }
+    ],
     // Mount the parent as /workspaces so we can pip install peers as editable
     "workspaceMount": "source=${localWorkspaceFolder}/..,target=/workspaces,type=bind",
     // After the container is created, install the python project in editable form
-    "postCreateCommand": "pip install $([ -f dev-requirements.txt ] && echo '-c dev-requirements.txt') -e '.[dev]' && pre-commit install"
+    "postCreateCommand": "uv sync && uv run pre-commit install --install-hooks"
 }

.github/CONTRIBUTING.md

@@ -24,4 +24,4 @@ It is recommended that developers use a [vscode devcontainer](https://code.visua
 
 This project was created using the [Diamond Light Source Copier Template](https://github.com/DiamondLightSource/python-copier-template) for Python projects.
 
-For more information on common tasks like setting up a developer environment, running the tests, and setting a pre-commit hook, see the template's [How-to guides](https://diamondlightsource.github.io/python-copier-template/4.2.0/how-to.html).
+For more information on common tasks like setting up a developer environment, running the tests, and setting a pre-commit hook, see the template's [How-to guides](https://diamondlightsource.github.io/python-copier-template/5.0.0a1/how-to.html).

.github/workflows/_dist.yml

@@ -12,10 +12,13 @@ jobs:
           # Need this to get version number from last tag
           fetch-depth: 0
 
+      - name: Install uv
+        uses: astral-sh/setup-uv@v6
+
       - name: Build sdist and wheel
         run: >
           export SOURCE_DATE_EPOCH=$(git log -1 --pretty=%ct) &&
-          pipx run build
+          uvx --from build pyproject-build
 
       - name: Upload sdist and wheel as artifacts
         uses: actions/upload-artifact@v4
@@ -24,12 +27,10 @@ jobs:
           path: dist
 
       - name: Check for packaging errors
-        run: pipx run twine check --strict dist/*
+        run: uvx twine check --strict dist/*
 
       - name: Install produced wheel
-        uses: ./.github/actions/install_requirements
-        with:
-          pip-install: dist/*.whl
+        run: python -m pip install dist/*.whl
 
       - name: Test module --version works using the installed wheel
         # If more than one module in src/ replace with module name to test

.github/workflows/_test.yml

@@ -3,8 +3,8 @@ on:
     inputs:
       python-version:
         type: string
-        description: The version of python to install
-        required: true
+        description: The version of python to install, default is from .python-version file
+        default: ""
       runs-on:
         type: string
         description: The runner to run this job on
@@ -16,6 +16,7 @@ on:
 env:
   # https://github.com/pytest-dev/pytest/issues/2042
   PY_IGNORE_IMPORTMISMATCH: "1"
+  UV_PYTHON: ${{ inputs.python-version }}
 
 jobs:
   run:
@@ -28,30 +29,11 @@ jobs:
           # Need this to get version number from last tag
           fetch-depth: 0
 
-      - if: inputs.python-version == 'dev'
-        name: Install dev versions of python packages
-        uses: ./.github/actions/install_requirements
-
-      - if: inputs.python-version == 'dev'
-        name: Write the requirements as an artifact
-        run: pip freeze --exclude-editable > /tmp/dev-requirements.txt
-
-      - if: inputs.python-version == 'dev'
-        name: Upload dev-requirements.txt
-        uses: actions/upload-artifact@v4
-        with:
-          name: dev-requirements
-          path: /tmp/dev-requirements.txt
-
-      - if: inputs.python-version != 'dev'
-        name: Install latest versions of python packages
-        uses: ./.github/actions/install_requirements
-        with:
-          python-version: ${{ inputs.python-version }}
-          pip-install: ".[dev]"
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
 
       - name: Run tests
-        run: tox -e tests
+        run: uv run --locked tox -e tests
 
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v5

.github/workflows/_tox.yml

@@ -15,8 +15,8 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
-      - name: Install python packages
-        uses: ./.github/actions/install_requirements
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
 
       - name: Run tox
-        run: tox -e ${{ inputs.tox }}
+        run: uv run --locked tox -e ${{ inputs.tox }}

.github/workflows/ci.yml

@@ -20,10 +20,6 @@ jobs:
       matrix:
         runs-on: ["ubuntu-latest"] # can add windows-latest, macos-latest
         python-version: ["3.11", "3.12", "3.13"]
-        include:
-          # Include one that runs in the dev environment
-          - runs-on: "ubuntu-latest"
-            python-version: "dev"
       fail-fast: false
     uses: ./.github/workflows/_test.yml
     with:

.pre-commit-config.yaml

@@ -3,6 +3,7 @@ repos:
     rev: v5.0.0
     hooks:
       - id: check-added-large-files
+        args: ["--maxkb=1000"] # uv.lock is more than 500kB
       - id: check-yaml
         exclude: ^helm\/.*\/templates\/.*|catalog-info.yaml
       - id: check-merge-conflict
@@ -23,3 +24,10 @@ repos:
         entry: ruff format --force-exclude
         types: [python]
         require_serial: true
+
+      - id: uv-sync
+        name: update uv.lock and venv
+        pass_filenames: false
+        language: system
+        entry: uv sync
+        files: ^(uv\.lock|pyproject\.toml)$

.python-version

@@ -0,0 +1 @@
+3.11

Dockerfile

@@ -1,65 +1,62 @@
 # The devcontainer should use the developer target and run as root with podman
 # or docker with user namespaces.
-ARG PYTHON_VERSION=3.11
-
-# The developer is used by devcontainers ###############################################
-FROM python:${PYTHON_VERSION} AS developer
+FROM ghcr.io/diamondlightsource/ubuntu-devcontainer:noble AS developer
 
 # Add any system dependencies for the developer/build environment here
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    gdb \
-    busybox \
+RUN apt-get update -y && apt-get install -y --no-install-recommends \
     graphviz \
-    && rm -rf /var/lib/apt/lists/* \
-    && busybox --install -s
-
-# Set up a virtual environment and put it in PATH
-RUN python -m venv /venv
-ENV PATH=/venv/bin:$PATH
+    && apt-get dist-clean
 
-# The build stage installs the context into the venv ###################################
+# The build stage installs the context into the venv
 FROM developer AS build
 
-# Requires buildkit 0.17.0
-COPY --chmod=o+wrX . /workspaces/fastcs-example
-WORKDIR /workspaces/fastcs-example
-RUN touch dev-requirements.txt && pip install stdio-socket>=1.3.1 debugpy \
-    -c dev-requirements.txt .[demo]
+# Change the working directory to the `app` directory
+# and copy in the project
+WORKDIR /app
+COPY . /app
+RUN chmod o+wrX .
+
+# Tell uv sync to install python in a known location so we can copy it out later
+ENV UV_PYTHON_INSTALL_DIR=/python
+
+# Sync the project without its dev dependencies
+RUN --mount=type=cache,target=/root/.cache/uv \
+    uv sync --locked --no-editable --no-dev
+
 
-# The debug stage allows for debugging and development #################################
 FROM build AS debug
 
 # Set origin to use ssh
 RUN git remote set-url origin git@github.com:DiamondLightSource/fastcs-example.git
 
-# Make editable and debuggable
-RUN pip install debugpy -e '.[dev]'
-RUN chmod o+wrX /venv /workspaces
-
-RUN apt-get update && \
-    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-    busybox \
-    gdb \
-    libnss-ldapd \
-    && rm -rf /var/lib/apt/lists/* \
-    && busybox --install -s
 
 # For this pod to understand finding user information from LDAP
+RUN apt update
+RUN DEBIAN_FRONTEND=noninteractive apt install libnss-ldapd -y
 RUN sed -i 's/files/ldap files/g' /etc/nsswitch.conf
 
-# Alternate entrypoint to allow restarting the IOC
-ENTRYPOINT [ "/bin/bash", "-c", "sleep infinity" ]
+# Make editable and debuggable
+RUN uv pip install debugpy
+RUN uv pip install -e .
+
+# Alternate entrypoint to allow devcontainer to attach
+ENTRYPOINT [ "/bin/bash", "-c", "--" ]
+CMD [ "while true; do sleep 30; done;" ]
+
+# The runtime stage copies the built venv into a runtime container
+FROM ubuntu:noble AS runtime
 
-# The runtime stage has built venv only ################################################
-FROM python:${PYTHON_VERSION}-slim AS runtime
+# Add apt-get system dependecies for runtime here if needed
+# RUN apt-get update -y && apt-get install -y --no-install-recommends \
+#     some-library \
+#     && apt-get dist-clean
 
-# Add apt-get system dependecies for runtime
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    gdb \
-    && rm -rf /var/lib/apt/lists/*
+# Copy the python installation from the build stage
+COPY --from=build /python /python
 
-COPY --from=build /venv/ /venv/
-ENV PATH=/venv/bin:$PATH
+# Copy the environment, but not the source code
+COPY --from=build /app/.venv /app/.venv
+ENV PATH=/app/.venv/bin:$PATH
 
 # change this entrypoint if it is not the same as the repo
 ENTRYPOINT ["fastcs-example"]