Put uv cache in cache mount

Author: aristarkhovNV

examples/teleop_ros2/Dockerfile

@@ -107,9 +107,10 @@ WORKDIR /opt/isaacteleop/install/examples/teleop_ros2/python
 # Pre-install heavy Python dependencies so they are cached independently of C++ builds.
 # Copy requirements from the context, avoiding any files from the 'builder' stage.
 COPY src/core/python/requirements.txt src/core/python/requirements-retargeters.txt /tmp/
-RUN uv venv --python=${PYTHON_VERSION} && \
-    uv pip install setuptools wheel && \
-    uv pip install --no-build-isolation-package nlopt \
+RUN --mount=type=cache,target=/root/.cache/uv,id=isaacteleop-teleop-ros2-uv-${PYTHON_VERSION} \
+    UV_CACHE_DIR=/root/.cache/uv uv venv --python=${PYTHON_VERSION} && \
+    UV_CACHE_DIR=/root/.cache/uv uv pip install setuptools wheel && \
+    UV_CACHE_DIR=/root/.cache/uv uv pip install --no-build-isolation-package nlopt \
         -r /tmp/requirements.txt -r /tmp/requirements-retargeters.txt msgpack msgpack-numpy && \
     rm /tmp/requirements.txt /tmp/requirements-retargeters.txt
 
@@ -123,6 +124,7 @@ ENV BASH_ENV=/usr/local/bin/teleop-env-setup
 RUN echo "source /usr/local/bin/teleop-env-setup" >> /etc/bash.bashrc
 
 # Pre-install Python dependencies so uv run doesn't download at every launch.
-RUN uv sync --no-dev
+RUN --mount=type=cache,target=/root/.cache/uv,id=isaacteleop-teleop-ros2-uv-${PYTHON_VERSION} \
+    UV_CACHE_DIR=/root/.cache/uv uv sync --no-dev
 
 ENTRYPOINT ["/usr/local/bin/teleop-entrypoint", "uv", "run", "teleop_ros2_publisher.py"]