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I get the following error when installing PHP FPM:

Creating config file /etc/php/7.0/fpm/php.ini with new version
invoke-rc.d: could not determine current runlevel
invoke-rc.d: policy-rc.d denied execution of start.

I tried the following tweaks in my dockerfile:

RUN echo exit 0 > /usr/sbin/policy-rc.d
RUN /etc/init.d/php7.0-fpm start
RUN service php7.0-fpm start

None of this works, and PHP FPM isn't running on boot.

However if I ssh in and manually run the following command:

service php7.0-fpm start

Then it starts working! What is the problem here?

Jimmy
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2 Answers2

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The problem is that you have to provide the full path to the utility you invoked. When you do it from the ssh-session you have some PATH environment variable containing the list of directories looked for the given utility. And there is no such list in the docker.

Run manually: 

which service

You'll get the full path to the utility. Provide that path to the config instead of single utility name.

Kondybas
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  • I thought this was a shoe in to work, but it still didn't. I tried both: ```RUN usr/sbin/service php7.0-fpm start``` and ```RUN /usr/sbin/service php7.0-fpm start``` as part of the docker file and no luck, yet when I login and run it, it works fine! – Jimmy Sep 24 '18 at 16:12
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invoke-rc.d: policy-rc.d denied execution of start.

Try adding:

RUN printf "#!/bin/sh\nexit 0" > /usr/sbin/policy-rc.d
RUN chmod +x /usr/sbin/policy-rc.d

See: How to solve “invoke-rc.d: policy-rc.d denied execution of start.”

invoke-rc.d: could not determine current runlevel

Try:

RUN RUNLEVEL=1 dpkg --configure -a

or:

RUN RUNLEVEL=1 dpkg-reconfigure php7.0-fpm
kenorb
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