Dockerfile multi-stage example for JS/PHP App

Dockerfile

###############################################################################
# Step 1 : NPM Builder image
#
FROM node:lts-alpine AS npm-builder

# Define working directory and copy source
WORKDIR /home/node/app
COPY ./my_app/package.json ./my_app/modernizr-config.json ./
# Install dependencies and build whatever you have to build 
RUN apk add --no-cache git
RUN echo "104.16.20.35 registry.npmjs.org" >> /etc/hosts
RUN echo "192.30.253.112 github.com" >> /etc/hosts
RUN npm install 
RUN npm run modernizr
COPY ./my_app/ .
RUN npm run production

###############################################################################
# Step 2 : Composer Install
#
FROM composer:latest AS composer-install

WORKDIR /home/node/app
COPY ./my_app/database /home/node/app/database
# Install deps for production only
COPY ./my_app/composer.lock ./my_app/composer.json ./
RUN composer install --no-ansi --no-dev --no-interaction --no-progress --no-scripts --optimize-autoloader

###################################################################################
# Step 3 : Build Final Image

FROM php:7-apache

RUN apt-get update && apt-get install --no-install-recommends -y \
        mysql-client \
        libpng-dev \
        libzip-dev \
        libicu-dev \
    && pecl install redis \
    && docker-php-ext-enable redis \
    && docker-php-ext-configure zip --with-libzip \
    && docker-php-ext-install pdo_mysql pcntl tokenizer intl \
    && docker-php-ext-install zip \
    && a2enmod rewrite \
    && apt-get purge \
    && rm -rf /var/lib/apt/lists/*


WORKDIR /var/www
COPY ./my_app/ .

# Copy builded source from the upper builder stage
COPY --from=npm-builder /home/node/app/public ./public
COPY --from=composer-install /home/node/app/vendor ./vendor
ENV APACHE_DOCUMENT_ROOT /var/www/public
RUN sed -ri -e 's!/var/www/html!/var/www/public!g' /etc/apache2/sites-available/*.conf
RUN sed -ri -e 's!/var/www/!/var/www/public!g' /etc/apache2/apache2.conf /etc/apache2/conf-available/*.conf
RUN chown -R www-data:www-data /var/www/storage /var/www/bootstrap/cache /var/www/public