Docker ends running after initialization ( service apache2 start )

General
1

I’m trying to build my own apache image.
My running environment is

Version 17.06.0-ce
API version 1.30
Go version go1.8.3
OS type linux
OS Debian GNU/Linux 9 (stretch)
Architecture amd64
Kernel version 4.9.0-3-amd64

This is my Dockerfile

################################################

FROM debian:stable

WORKDIR /app

ENV TERM=xterm

RUN apt-get update

RUN apt-get install -y php7.0

RUN apt-get install -y apt-utils

RUN apt-get install -y mc

RUN apt-get install -y apache2

VOLUME /webserver_data

EXPOSE 80

ENTRYPOINT /usr/sbin/service apache2 start

################################################

As far as I’ve read, the container stops running when the last command it runs ends.
But what I really want to is to start the apache2 and leave the container listening for connections.
Is this possible ?
What am I missing ?

Thanks.
Regards.

2

You could run “docker logs -f {image ID]” to review the logs - building and running your dockerfile, it produces the following error message:

[....] Starting Apache httpd web server: apache2AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 172.17.0.3. Set the 'ServerName' directive globally to suppress this message. ok

It would require setting up ENV variables as well as ServerName.