我有以下 dockerfile，我想从 https://hub.docker.com/r/julianassmann/opencv-cuda/:
的图像构建 docker 容器FROM julianassmann/opencv-cuda
#image name with OpenCV with CUDA
# Edit /etc/default/docker file to add custom DNS server
RUN echo 'DOCKER_OPTS="--dns 172.16.16.10"' >> /etc/default/docker
#working directory where i have placed container
#on top of container
RUN apt-get update
RUN apt-get -y install sudo
# Install additional packages
RUN sudo apt update \
#prevent interactive prompts
&& export DEBIAN_FRONTEND=noninteractive \
&& apt install -y lubuntu-desktop net-tools pip python3-tk \
# Clean up no longer required by any other packages
&& apt autoremove -y \
#removes cached package files that were downloaded during the package installation
&& apt clean -y \
#cached package lists and can be safely removed after installing packages
&& rm -rf /var/lib/apt/lists/* \
#removes any files with names starting with reboot-required in the /run/ directory to prevent reboot after installing packages
&& rm /run/reboot-required*
# Create a non-root user with sudo priviledges
ARG USERNAME=user
ARG PASSWORD=password
ARG USER_UID=1000
ARG USER_GID=$USER_UID # Group ID (GID) of the user being created
#Creates a group with the specified USER_GID and name USERNAME
RUN groupadd --gid $USER_GID $USERNAME \
#Creates a user with the specified USER_UID, USER_GID, USERNAME, and encrypted password generated from the PASSWORD.
#The -m flag ensures that a home directory is created for the user.
#/bin/bash refers to the Bash shell executable binary file. Unix-like operating system,you specify the user's default shell
&& useradd -s /bin/bash --uid $USER_UID --gid $USER_GID -m $USERNAME -p $(openssl passwd $PASSWORD) \
# [Optional] Add sudo support for the non-root user
&& apt update \
&& apt install -y sudo \
#username allow execute commands as root without entering a password
&& echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME\
#Sets appropriate permissions
&& chmod 0440 /etc/sudoers.d/$USERNAME \
# Clean up
&& apt autoremove -y \
&& apt clean -y \
&& rm -rf /var/lib/apt/lists/* \
# provide auto-completion functionality when typing commands in the Bash shell
&& echo "source /usr/share/bash-completion/completions/git" >> /home/$USERNAME/.bashrc \
# Configure remote desktop
RUN adduser xrdp ssl-cert
RUN sed -i '3 a echo " \
export GNOME_SHELL_SESSION_MODE=Lubuntu\\n\
export XDG_SESSION_TYPE=x11\\n\
export XDG_CURRENT_DESKTOP=LXQt\\n\
export XDG_CONFIG_DIRS=/etc/xdg/xdg-Lubuntu:/etc/xdg\\n\
" > ~/.xsessionrc' /etc/xrdp/startwm.sh
#default port used by Remote Desktop Protocol (RDP)
EXPOSE 3389
# Install Python dependencies
COPY requirements.txt .
RUN pip install --disable-pip-version-check --no-cache-dir -U -r requirements.txt \
&& rm requirements.txt
# Start xrdp and a bash terminal
CMD service xrdp start ; bash
我有以下错误：
错误：无法解决：进程“/bin/sh -c apt-get update”未完成 suc 成功：退出代码：100
我不明白这个问题，因为我已经使用前面的命令安装了 sudo:
RUN apt-get update
RUN apt-get -y install sudo
我下载了你的 Dockerfile，你也提到了第一个错误与 apt-get update 有关，它指出它找不到 nvidia 软件包的签名（GPG 密钥的公共部分）。
5.095 W: GPG error: https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64 InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A4B469963BF863CC
5.095 E: The repository 'https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64 InRelease' is not signed.
修复方法是在 apt-get 更新之前添加公钥
RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/3bf863cc.pub
RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/7fa2af80.pub
RUN apt-get update
RUN apt-get -y install sudo
就像这样。
完成此步骤后，我再次尝试重建映像，然后在 ubuntu 18 上安装 pip 时出错。
在这一行：&& apt install -y lubuntu-desktop net-tools python3-pip python3-tk \
2.876 Reading state information...
2.937 E: Unable to locate package pip
并找到了解决此问题的方法：
Ubuntu 18.04 上的“E：无法找到 python-pip 包”
这表示你需要安装 python3-pip 而不是仅仅安装 pip 来获得 python3 依赖。
这使得它：
&& apt install -y lubuntu-desktop net-tools python3-pip python3-tk \
经过这些调整的整个 dockerfile 是：
FROM julianassmann/opencv-cuda
#image name with OpenCV with CUDA
# Edit /etc/default/docker file to add custom DNS server
RUN echo 'DOCKER_OPTS="--dns 172.16.16.10"' >> /etc/default/docker
#working directory where i have placed container
#on top of container
RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/3bf863cc.pub
RUN apt-key adv --fetch-keys https://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1804/x86_64/7fa2af80.pub
RUN apt-get update
RUN apt-get -y install sudo
# Install additional packages
RUN apt update \
#prevent interactive prompts
&& export DEBIAN_FRONTEND=noninteractive \
&& apt install -y lubuntu-desktop net-tools python3-pip python3-tk \
# Clean up no longer required by any other packages
&& apt autoremove -y \
#removes cached package files that were downloaded during the package installation
&& apt clean -y \
#cached package lists and can be safely removed after installing packages
&& rm -rf /var/lib/apt/lists/* \
#removes any files with names starting with reboot-required in the /run/ directory to prevent reboot after installing packages
&& rm /run/reboot-required*
# Create a non-root user with sudo priviledges
ARG USERNAME=user
ARG PASSWORD=password
ARG USER_UID=1000
ARG USER_GID=$USER_UID # Group ID (GID) of the user being created
#Creates a group with the specified USER_GID and name USERNAME
RUN groupadd --gid $USER_GID $USERNAME \
#Creates a user with the specified USER_UID, USER_GID, USERNAME, and encrypted password generated from the PASSWORD.
#The -m flag ensures that a home directory is created for the user.
#/bin/bash refers to the Bash shell executable binary file. Unix-like operating system,you specify the user's default shell
&& useradd -s /bin/bash --uid $USER_UID --gid $USER_GID -m $USERNAME -p $(openssl passwd $PASSWORD) \
# [Optional] Add sudo support for the non-root user
&& apt update \
&& apt install -y sudo \
#username allow execute commands as root without entering a password
&& echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME\
#Sets appropriate permissions
&& chmod 0440 /etc/sudoers.d/$USERNAME \
# Clean up
&& apt autoremove -y \
&& apt clean -y \
&& rm -rf /var/lib/apt/lists/* \
# provide auto-completion functionality when typing commands in the Bash shell
&& echo "source /usr/share/bash-completion/completions/git" >> /home/$USERNAME/.bashrc \
# Configure remote desktop
RUN adduser xrdp ssl-cert
RUN sed -i '3 a echo " \
export GNOME_SHELL_SESSION_MODE=Lubuntu\\n\
export XDG_SESSION_TYPE=x11\\n\
export XDG_CURRENT_DESKTOP=LXQt\\n\
export XDG_CONFIG_DIRS=/etc/xdg/xdg-Lubuntu:/etc/xdg\\n\
" > ~/.xsessionrc' /etc/xrdp/startwm.sh
#default port used by Remote Desktop Protocol (RDP)
EXPOSE 3389
# Install Python dependencies
COPY requirements.txt .
RUN pip install --disable-pip-version-check --no-cache-dir -U -r requirements.txt \
&& rm requirements.txt
# Start xrdp and a bash terminal
CMD service xrdp start ; bash
注意：
您还有一个错误需要解决：
[ 9/11] 运行 sed -i '3 a echo " 导出 GNOME_SHELL_SESSION_MODE=Lubuntu 导出 XDG_SESSION_TYPE=x11 导出 XDG_CURRENT_DESKTOP=LXQt 导出 XDG_CONFIG_DIRS=/etc/xdg/xdg-Lubuntu:/etc/xdg > ~/.xsessionrc' /etc/xrdp/startwm.sh: 0.419 sed：无法读取/etc/xrdp/startwm.sh：没有这样的文件或目录
但我从 Dockerfile 中注释了这一行，并且它已构建。使用
docker image build -t cuda-test:0.0.1 .