Dockerfile CMD 未在容器启动时运行 [英] Dockerfile CMD not running at container start
问题描述
所以我已经为一个项目编写了一个 Dockerfile，我已经定义了一个 CMD 来在启动容器时运行以引导应用程序.
So i've written a Dockerfile for a project, i've defined a CMD to run on starting the container to bootstrap the application.
Dockerfile 看起来像
The Dockerfile looks like
# 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"]
start.sh 脚本执行一些 git 工作，例如克隆正确的 repo、设置环境变量以及启动主管.
The start.sh script, does some git stuff like cloning the right repo, setting environment vars, as well as starting supervisor.
启动脚本以此开头
#!/bin/bash
now=$(date +"%T")
echo "Container Start Time : $now" >> /tmp/start.txt
/usr/bin/supervisord -n -c /etc/supervisord.conf
我像这样启动我的新容器
I start my new container like this
docker run -d -p expoPort:contPort -t -i -v /$MOUNTED_VOLUME_DIR/$PROJECT:/$MOUNTED_VOLUME_DIR $CONTAINER_ID /bin/bash
当我登录到容器时，我看到主管还没有启动，也没有 nginx 或 php5-fpm.从 startContainer 脚本设置时间戳的/tmp/start.txt 文件不存在，表明它从未在 Dockerfile 中运行过 CMD.
when i login to the container i see that supervisor hasn't been started, and neither has nginx or php5-fpm. the /tmp/start.txt file with a timestamp set from the startContainer script doesn't exist, showing its never ran the CMD in the Dockerfile.
任何解决此问题的提示都会很棒
Any hints on to get this fixed would be great
推荐答案
这个:
docker run -d -p expoPort:contPort -t -i -v /$MOUNTED_VOLUME_DIR/$PROJECT:/$MOUNTED_VOLUME_DIR $CONTAINER_ID /bin/bash
在实例化容器后说运行/bin/bash".例如.跳过CMD.
Says 'run /bin/bash' after instantiating the container. E.g. skip CMD.
试试这个:
docker run -d -p expoPort:contPort -t -i -v /$MOUNTED_VOLUME_DIR/$PROJECT:/$MOUNTED_VOLUME_DIR $CONTAINER_ID
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