Docker Compose运行时entrypoint.sh未找到问题求助

错误信息 #

Error response from daemon: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: exec: "./entrypoint.sh": stat ./entrypoint.sh: no such file or directory: unknown

原Dockerfile内容 #

FROM debian:bullseye

ENV DEBIAN_FRONTEND noninteractive

RUN apt-get update && apt-get install -y cmake build-essential curl git

RUN echo "deb http://archive.raspberrypi.org/debian/ bullseye main" > /etc/apt/sources.list.d/raspi.list
RUN curl "https://archive.raspberrypi.org/debian/raspberrypi.gpg.key" | apt-key add -

RUN apt-get update && apt-get install -y libcamera-dev libjpeg-dev libgphoto2-dev

RUN git clone https://github.com/ArduCAM/mjpg-streamer.git /src
WORKDIR /src/mjpg-streamer-experimental

RUN sed -i "/input_libcamera/p;/input_/d;/output_http/p;/output_/d" CMakeLists.txt
RUN make && make install

COPY entrypoint.sh /entrypoint.sh
ENV INPUT_FLAGS "-r 1640x1232 -f 10"
ENV OUTPUT_FLAGS "-w ./www"
RUN chmod +x entrypoint.sh
ENTRYPOINT ["./entrypoint.sh"]

Docker Compose配置 #

version: "3"

services:
  mjpg-streamer:
    build:
      context: ./mjpg-streamer
      dockerfile: Dockerfile
    restart: always
    privileged: true
    ports:
      - 8080:8080
    environment:
      - INPUT_FLAGS=-r 1640x1232 -f 10
      - OUTPUT_FLAGS=-w ./www
    volumes:
      - /run/udev:/run/udev:ro
      - /opt/Octoprint/mjpg-streamer:/mjpg-streamer

  octoprint:
    image: octoprint/octoprint:latest
    restart: always
    privileged: true
    ports:
      - 9003:80
    devices:
      - /dev/ttyUSB0:/dev/ttyUSB0
    volumes:
      - /opt/Octoprint/data/octoprint:/octoprint
      - /proc/cpuinfo:/proc/cpuinfo:ro
      - /usr/bin/vcgencmd:/usr/bin/vcgencmd:ro
      - /usr/lib/aarch64-linux-gnu/libvcos.so.0:/usr/lib/aarch64-linux-gnu/libvcos.so.0:ro
      - /usr/lib/aarch64-linux-gnu/libvchiq_arm.so.0:/usr/lib/aarch64-linux-gnu/libvchiq_arm.so.0:ro

已尝试的调整方案 #

• 尝试1：修改ENTRYPOINT为./mjpg-streamer/entrypoint.sh
• 尝试2：COPY路径改为/entrypoint.sh /entrypoint.sh，ENTRYPOINT保持./entrypoint.sh
• 尝试3：COPY路径改为/entrypoint.sh /entrypoint.sh，ENTRYPOINT改为./mjpg-streamer/entrypoint.sh
• 尝试4：COPY路径改为entrypoint.sh entrypoint.sh，ENTRYPOINT保持./entrypoint.sh
• 尝试5：COPY路径改为./mjpg-streamer/entrypoint.sh /entrypoint.sh，ENTRYPOINT保持./entrypoint.sh

问题根源与解决方法 #

核心根源 #

Dockerfile最后设置的WORKDIR是/src/mjpg-streamer-experimental，但你把entrypoint.sh复制到了根目录/entrypoint.sh，而ENTRYPOINT ["./entrypoint.sh"]是相对当前工作目录的路径，自然找不到文件。另外部分尝试中chmod命令用了相对路径，同样会因为WORKDIR的问题执行无效。

修复方案 #

方案1：使用绝对路径调用entrypoint

直接用绝对路径指定ENTRYPOINT，同时修正chmod的路径：

COPY entrypoint.sh /entrypoint.sh
ENV INPUT_FLAGS "-r 1640x1232 -f 10"
ENV OUTPUT_FLAGS "-w ./www"
RUN chmod +x /entrypoint.sh
ENTRYPOINT ["/entrypoint.sh"]

方案2：将文件复制到当前WORKDIR

如果偏好相对路径，把entrypoint.sh复制到当前工作目录：

COPY entrypoint.sh ./entrypoint.sh
ENV INPUT_FLAGS "-r 1640x1232 -f 10"
ENV OUTPUT_FLAGS "-w ./www"
RUN chmod +x ./entrypoint.sh
ENTRYPOINT ["./entrypoint.sh"]

额外验证步骤（可选）

可以在Dockerfile中添加验证步骤，确保文件被正确复制：

RUN ls -l /entrypoint.sh  # 对应方案1的路径
# 或者方案2用 RUN ls -l ./entrypoint.sh

隐藏坑排查

如果上述方案无效，检查entrypoint.sh的换行符：若脚本在Windows下编辑，CRLF换行符会导致容器执行时出现类似"文件找不到"的错误，可在Dockerfile中添加转换步骤：

RUN apt-get install -y dos2unix && dos2unix /entrypoint.sh

内容的提问来源于stack exchange，提问作者Naklsonofnakkl