Brev: Remove unused Docker-in-Docker to reduce image size.

tutorials/accelerated-python/brev/dockerfile

@@ -55,20 +55,6 @@ RUN curl -fsSL https://keyserver.ubuntu.com/pks/lookup?op=get\&search=0xBA693236
  && rm -f /usr/lib/python3.*/EXTERNALLY-MANAGED \
  && rm -rf /var/lib/apt/lists/*
 
-# Install Docker
-RUN mkdir -p /etc/apt/keyrings \
- && curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg \
- && echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null \
- && apt-get update -y \
- && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-    docker-ce \
-    docker-ce-cli \
-    containerd.io \
-    docker-buildx-plugin \
-    docker-compose-plugin \
- && apt-get clean -y \
- && rm -rf /var/lib/apt/lists/*
-
 # Install PyTorch with CUDA 13.0 support.
 RUN pip install --no-cache-dir --root-user-action=ignore \
     --index-url https://download.pytorch.org/whl/cu130 \

tutorials/cuda-cpp/brev/dockerfile

@@ -29,27 +29,6 @@ RUN python -m jupyter labextension disable "@jupyterlab/apputils-extension:annou
 RUN echo 'ALL ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers \
  && sed -i -e 's/^Defaults\s*env_reset/Defaults !env_reset/' -e 's/^Defaults\s*secure_path=/#&/' /etc/sudoers
 
-# Install Docker
-RUN apt-get update -y \
- && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-    apt-transport-https \
-    ca-certificates \
-    curl \
-    gnupg \
-    lsb-release \
- && mkdir -p /etc/apt/keyrings \
- && curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg \
- && echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null \
- && apt-get update -y \
- && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-    docker-ce \
-    docker-ce-cli \
-    containerd.io \
-    docker-buildx-plugin \
-    docker-compose-plugin \
- && apt-get clean -y \
- && rm -rf /var/lib/apt/lists/*
-
 COPY . /accelerated-computing-hub
 
 # Ensure accelerated-computing-hub directory is writable by any user

tutorials/nvmath-python/brev/dockerfile

@@ -26,27 +26,6 @@ RUN python -m jupyter labextension disable "@jupyterlab/apputils-extension:annou
 RUN echo 'ALL ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers \
  && sed -i -e 's/^Defaults\s*env_reset/Defaults !env_reset/' -e 's/^Defaults\s*secure_path=/#&/' /etc/sudoers
 
-# Install Docker
-RUN apt-get update -y \
- && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-    apt-transport-https \
-    ca-certificates \
-    curl \
-    gnupg \
-    lsb-release \
- && mkdir -p /etc/apt/keyrings \
- && curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg \
- && echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null \
- && apt-get update -y \
- && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-    docker-ce \
-    docker-ce-cli \
-    containerd.io \
-    docker-buildx-plugin \
-    docker-compose-plugin \
- && apt-get clean -y \
- && rm -rf /var/lib/apt/lists/*
-
 COPY . /accelerated-computing-hub
 
 # Ensure accelerated-computing-hub directory is writable by any user