Ubuntu: Replace python/pip by UV

Author: ubruhin

ubuntu-20.04-qt6.6/Dockerfile

@@ -43,10 +43,6 @@ RUN apt-get update -q && apt-get -y -q install --no-install-recommends \
     make \
     ninja-build \
     p7zip-full \
-    python3 \
-    python3-pip \
-    python3-setuptools \
-    python3-wheel \
     software-properties-common \
     wget \
     xvfb \
@@ -58,13 +54,6 @@ RUN apt-get update -q && apt-get -y -q install --no-install-recommends \
 RUN update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-10 100
 RUN update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 100
 
-# Set Python3 as default Python version
-RUN update-alternatives --install /usr/bin/python python /usr/bin/python3 100
-RUN update-alternatives --install /usr/bin/pip pip /usr/bin/pip3 100
-
-# Allow installing pip packages system-wide since there's no risk in a container
-ENV PIP_BREAK_SYSTEM_PACKAGES=1
-
 # Install Rust
 # Make .cargo/ writable for everyone to allow running the container as non-root.
 ARG RUST_VERSION="1.87.0"
@@ -181,6 +170,22 @@ RUN wget -c "$LINUXDEPLOY_URL" -O /usr/local/bin/linuxdeploy-x86_64.AppImage \
   && chmod a+x /usr/local/bin/linuxdeploy-plugin-qt-x86_64.AppImage \
   && linuxdeploy-x86_64.AppImage --list-plugins
 
+# Install UV
+# Set its python directory to a known, user-writable path to allow accessing the
+# python versions installed during docker build from within CI runs which are
+# run as non-root.
+ARG UV_VERSION="0.7.13"
+ARG UV_URL="https://github.com/astral-sh/uv/releases/download/$UV_VERSION/uv-x86_64-unknown-linux-gnu.tar.gz"
+ENV UV_PYTHON_INSTALL_DIR="/.uv/python"
+RUN wget -c "${UV_URL}" -O /tmp.tar.gz \
+  && tar -xzf /tmp.tar.gz --strip-components=1 -C /usr/local/bin/ \
+  && rm /tmp.tar.gz \
+  && mkdir -p $UV_PYTHON_INSTALL_DIR && chmod 777 $UV_PYTHON_INSTALL_DIR
+
+# Pre-install a Python version
+ARG PYTHON_VERSION="3.13"
+RUN uv python install $PYTHON_VERSION
+
 # Install latest OpenSSL to avoid possible issues if servers some day stop
 # working with an old OpenSSL library (as already happened in the past).
 ARG OPENSSL_VERSION="3.4.1"

ubuntu-22.04/Dockerfile

@@ -38,10 +38,6 @@ RUN apt-get update -q && apt-get -y -q install --no-install-recommends \
     occt-misc \
     openssl \
     pkg-config \
-    python3 \
-    python3-pip \
-    python3-setuptools \
-    python3-wheel \
     qt6-base-dev \
     qt6-image-formats-plugins \
     qt6-l10n-tools \
@@ -53,12 +49,6 @@ RUN apt-get update -q && apt-get -y -q install --no-install-recommends \
     zlib1g-dev \
   && rm -rf /var/lib/apt/lists/*
 
-# Set Python3 as default Python version
-RUN update-alternatives --install /usr/bin/python python /usr/bin/python3 100
-
-# Allow installing pip packages system-wide since there's no risk in a container
-ENV PIP_BREAK_SYSTEM_PACKAGES=1
-
 # Install Rust
 # Make .cargo/ writable for everyone to allow running the container as non-root.
 ARG RUST_VERSION="1.87.0"
@@ -70,5 +60,21 @@ RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
   && chmod 777 $RUSTUP_HOME \
   && chmod 777 $CARGO_HOME
 
+# Install UV
+# Set its python directory to a known, user-writable path to allow accessing the
+# python versions installed during docker build from within CI runs which are
+# run as non-root.
+ARG UV_VERSION="0.7.13"
+ARG UV_URL="https://github.com/astral-sh/uv/releases/download/$UV_VERSION/uv-x86_64-unknown-linux-gnu.tar.gz"
+ENV UV_PYTHON_INSTALL_DIR="/.uv/python"
+RUN wget -c "${UV_URL}" -O /tmp.tar.gz \
+  && tar -xzf /tmp.tar.gz --strip-components=1 -C /usr/local/bin/ \
+  && rm /tmp.tar.gz \
+  && mkdir -p $UV_PYTHON_INSTALL_DIR && chmod 777 $UV_PYTHON_INSTALL_DIR
+
+# Pre-install a Python version
+ARG PYTHON_VERSION="3.13"
+RUN uv python install $PYTHON_VERSION
+
 # LibrePCB's unittests expect that there is a USERNAME environment variable
 ENV USERNAME="root"

ubuntu-24.04/Dockerfile

@@ -38,10 +38,6 @@ RUN apt-get update -q && apt-get -y -q install --no-install-recommends \
     occt-misc \
     openssl \
     pkg-config \
-    python3 \
-    python3-pip \
-    python3-setuptools \
-    python3-wheel \
     qt6-base-dev \
     qt6-image-formats-plugins \
     qt6-l10n-tools \
@@ -53,12 +49,6 @@ RUN apt-get update -q && apt-get -y -q install --no-install-recommends \
     zlib1g-dev \
   && rm -rf /var/lib/apt/lists/*
 
-# Set Python3 as default Python version
-RUN update-alternatives --install /usr/bin/python python /usr/bin/python3 100
-
-# Allow installing pip packages system-wide since there's no risk in a container
-ENV PIP_BREAK_SYSTEM_PACKAGES=1
-
 # Install Rust
 # Make .cargo/ writable for everyone to allow running the container as non-root.
 ARG RUST_VERSION="1.87.0"
@@ -70,5 +60,21 @@ RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
   && chmod 777 $RUSTUP_HOME \
   && chmod 777 $CARGO_HOME
 
+# Install UV
+# Set its python directory to a known, user-writable path to allow accessing the
+# python versions installed during docker build from within CI runs which are
+# run as non-root.
+ARG UV_VERSION="0.7.13"
+ARG UV_URL="https://github.com/astral-sh/uv/releases/download/$UV_VERSION/uv-x86_64-unknown-linux-gnu.tar.gz"
+ENV UV_PYTHON_INSTALL_DIR="/.uv/python"
+RUN wget -c "${UV_URL}" -O /tmp.tar.gz \
+  && tar -xzf /tmp.tar.gz --strip-components=1 -C /usr/local/bin/ \
+  && rm /tmp.tar.gz \
+  && mkdir -p $UV_PYTHON_INSTALL_DIR && chmod 777 $UV_PYTHON_INSTALL_DIR
+
+# Pre-install a Python version
+ARG PYTHON_VERSION="3.13"
+RUN uv python install $PYTHON_VERSION
+
 # LibrePCB's unittests expect that there is a USERNAME environment variable
 ENV USERNAME="root"