How do I run php-fpm when I start docker container?

Question

How can I automatically run php-fpm command when I start the docker container?

I have this Dockerfile:

FROM composer:1.6.5 as build
WORKDIR /var/www
COPY . /var/www
RUN composer install

FROM php:7.2-fpm
USER root
RUN apt-get update && apt-get install -y \
    build-essential \
    mysql-client \
    libpng-dev \
    libjpeg62-turbo-dev \
    libfreetype6-dev \
    locales \
    zip \
    jpegoptim optipng pngquant gifsicle \
    vim \
    unzip \
    git \
    curl
RUN apt-get clean && rm -rf /var/lib/apt/lists/*
RUN docker-php-ext-install pdo_mysql mbstring zip exif pcntl
RUN docker-php-ext-configure gd --with-gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ --with-png-dir=/usr/include/
RUN docker-php-ext-install gd
RUN apt-get update -y \
    && apt-get install -y nginx
RUN rm -rf /var/www/html
COPY --chown=www-data:www-data --from=build /var/www /var/www
COPY nginx.conf /etc/nginx/sites-enabled/default
EXPOSE 80

RUN service nginx restart
CMD ["nginx", "-g", "daemon off;"]

I know I should run php-fpm because when I access 127.0.0.1:8080 it doesn't show my webpage. But when I ssh into the container and run php-fpm then visit 127.0.0.1:8080 again it will show the webpage.

Should I add CMD ["php-fpm"] below? Is it okay to have two CMD in the Dockerfile?

Answer 1

It suggest that you create a start_service.sh script or whatever. to start both php_fpm and nginx when you start the container.

If the script its a good idea to both processes as daemons or in the background. And then just wait forever.

#!/bin/bash
"start php_fpm"
"start_iginx"
sleep infinite

In the CMD in the Dockerfile you just call your script instead of nginx.