无法连接到docker中的套接字：PermissionError：[Errno 1]不允许操作

Question

我有一个应用程序正在尝试移至 Docker 容器中。我的大部分功能都可以正常工作，但是应用程序中需要提升权限的部分（使用套接字和配置网络参数）似乎无法正常工作。

我尝试过的：

• 给予

  --privileged

  旗帜
• 给予

  --cap-add=NET_ADMIN

  旗帜
• 使用

  --security-opt apparmor=unconfined --security-opt seccomp=unconfined

删除安全选项
• 在 Dockerfile 中添加用户组和 sudo
• 使用

  --net=host \

  选项。

这是我遇到的错误：

Process Process-2:
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
    self.run()
  File "/usr/local/lib/python3.9/multiprocessing/process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "/app/support_files/wizard_configuration_routines.py", line 781, in find_device
    device_list = scan_subnet('192.168.30.0/24',g_interface)
  File "/app/support_files/wizard_configuration_routines.py", line 757, in scan_subnet
    answered, unanswered = scapy.arping(subnet,verbose=False,iface=g_interface)
  File "/usr/local/lib/python3.9/site-packages/scapy/layers/l2.py", line 890, in arping
    ans, unans = srp(
  File "/usr/local/lib/python3.9/site-packages/scapy/sendrecv.py", line 687, in srp
    s = iface.l2socket()(promisc=promisc, iface=iface,
  File "/usr/local/lib/python3.9/site-packages/scapy/arch/linux.py", line 484, in __init__
    self.ins = socket.socket(
  File "/usr/local/lib/python3.9/socket.py", line 232, in __init__
    _socket.socket.__init__(self, family, type, proto, fileno)
PermissionError: [Errno 1] Operation not permitted

以下是相关文件

Dockerfile

# Slim version of Python
FROM python:3.9-slim

# Download Package Information
RUN apt update -y

# Install Tkinter
RUN apt install tk -y

# Install fontconfig
RUN apt install fontconfig -y

# Install Pillow
RUN python3 -m pip install Pillow
RUN python3 -m pip install ouster-sdk
RUN python3 -m pip install scapy
RUN python3 -m pip install customtkinter
RUN apt install net-tools -y
RUN fc-cache -f -v

# Commands to run Tkinter application
CMD ["/app/SCOT_wizard.py"]
ENTRYPOINT ["python3"]

build.sh

sudo docker build -t tkinter_in_docker .

运行.sh

sudo docker run -u=$(id -u $USER):$(id -g $USER) \
 -e DISPLAY=$DISPLAY \
 -v /tmp/.X11-unix:/tmp/.X11-unix:rw \
 -v $(pwd)/app:/app \
 -v $(pwd)/logs:/logs \
 -v $(pwd)/records:/records \
 -v $(pwd)/fonts:/.fonts\
 -w /app \
 --privileged \
 --net=host \
 --rm \
  tkinter_in_docker

Answer 1

尝试以 root 身份运行容器。为此，您可以将以下行添加到 Dockerfile 中：

USER root

或者使用 -u 参数运行容器：

docker run -u root <image-name>