如何在 ubuntu docker 容器中自动启动 apache2? [英] How to start apache2 automatically in a ubuntu docker container?

问题描述

我正在尝试创建一个将自动启动 apache 的 Dockerfile.没有任何效果.但是如果我登录到容器并运行 service apache2 start 它就可以了.为什么我不能从我的 Dockerfile 运行该命令?

I am trying to create a Dockerfile that will start apache automatically. Nothing has worked. But If I log into the container and run service apache2 start it works. Why can I not run that command from my Dockerfile?

FROM ubuntu

# File Author / Maintainer
MAINTAINER rmuktader

# Update the repository sources list
RUN apt-get update

# Install and run apache
RUN apt-get install -y apache2 && apt-get clean

#ENTRYPOINT ["/usr/sbin/apache2", "-k", "start"]


#ENV APACHE_RUN_USER www-data
#ENV APACHE_RUN_GROUP www-data
#ENV APACHE_LOG_DIR /var/log/apache2

EXPOSE 80
CMD service apache2 start

推荐答案

问题出在这里:CMD service apache2 start 当你执行这个命令时，进程 apache2 将被分离从外壳.但是 Docker 仅在主进程处于活动状态时工作.

The issue is here: CMD service apache2 start When you execute this command process apache2 will be detached from the shell. But Docker works only while main process is alive.

解决方案是在前台中运行 Apache.Dockerfile 必须如下所示:(只更改了最后一行).

The solution is to run Apache in the foreground. Dockerfile must look like this: (only last line changed).

FROM ubuntu

# File Author / Maintainer
MAINTAINER rmuktader

# Update the repository sources list
RUN apt-get update

# Install and run apache
RUN apt-get install -y apache2 && apt-get clean

#ENTRYPOINT ["/usr/sbin/apache2", "-k", "start"]


#ENV APACHE_RUN_USER www-data
#ENV APACHE_RUN_GROUP www-data
#ENV APACHE_LOG_DIR /var/log/apache2

EXPOSE 80
CMD apachectl -D FOREGROUND

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