bash Dockerfile CMD 未在容器启动时运行
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Dockerfile CMD not running at container start
提问by James Kirkby
So i've written a Dockerfile for a project, i've defined a CMD to run on starting the container to bootstrap the application.
所以我为一个项目编写了一个 Dockerfile，我定义了一个 CMD 来在启动容器时运行以引导应用程序。
The Dockerfile looks like
Dockerfile 看起来像
# create our mount folders and volumes
ENV MOUNTED_VOLUME_DIR=sites
RUN mkdir /$MOUNTED_VOLUME_DIR
ENV PATH=$MOUNTED_VOLUME_DIR/sbin:$MOUNTED_VOLUME_DIR/common/bin:$PATH
RUN chown -Rf www-data:www-data /$MOUNTED_VOLUME_DIR
# Mount folders
VOLUME ["/$MOUNTED_VOLUME_DIR/"]
# Expose Ports
EXPOSE 443
# add our environment variables to the server
ADD ./env /env
# Add entry point script
ADD ./start.sh /usr/bin/startContainer
RUN chmod 755 /usr/bin/startContainer
# define entrypoint command
CMD ["/bin/bash", "/usr/bin/startContainer"]
The start.sh script, does some git stuff like cloning the right repo, setting environment vars, as well as starting supervisor.
start.sh 脚本执行一些 git 操作，例如克隆正确的存储库、设置环境变量以及启动主管。
The start script begins with this
启动脚本以此开头
#!/bin/bash
now=$(date +"%T")
echo "Container Start Time : $now" >> /tmp/start.txt
/usr/bin/supervisord -n -c /etc/supervisord.conf
I start my new container like this
我像这样启动我的新容器
docker run -d -p expoPort:contPort -t -i -v /$MOUNTED_VOLUME_DIR/$PROJECT:/$MOUNTED_VOLUME_DIR $CONTAINER_ID /bin/bash
when i login to the container i see that supervisor hasn't been started, and neither has nginx or php5-fpm. the /tmp/start.txt file with a timestamp set from the startContainer script doesn't exist, showing its never ran the CMD in the Dockerfile.
当我登录到容器时，我看到主管尚未启动，nginx 或 php5-fpm 也没有启动。带有从 startContainer 脚本设置的时间戳的 /tmp/start.txt 文件不存在，表明它从未在 Dockerfile 中运行 CMD。
Any hints on to get this fixed would be great
任何有关修复此问题的提示都会很棒
回答by Sobrique
This:
这个：
docker run -d -p expoPort:contPort -t -i -v /$MOUNTED_VOLUME_DIR/$PROJECT:/$MOUNTED_VOLUME_DIR $CONTAINER_ID /bin/bash
Says 'run /bin/bash' after instantiating the container. E.g. skip CMD.
实例化容器后说“运行/bin/bash”。例如跳过CMD。
Try this:
尝试这个：
docker run -d -p expoPort:contPort -t -i -v /$MOUNTED_VOLUME_DIR/$PROJECT:/$MOUNTED_VOLUME_DIR $CONTAINER_ID
