- refactor: use external script to install PHP extensions and their dependencies

Dockerfile

@@ -1,38 +1,35 @@
 FROM php:latest
 LABEL maintainer="dev@chialab.io"
 
-# Install PHP extensions and PECL modules.
-RUN buildDeps=" \
-        default-libmysqlclient-dev \
-        libbz2-dev \
-        libmemcached-dev \
-        libsasl2-dev \
-    " \
-    runtimeDeps=" \
-        curl \
-        git \
-        libfreetype6-dev \
-        libicu-dev \
-        libjpeg-dev \
-        libldap2-dev \
-        libmemcachedutil2 \
-        libpng-dev \
-        libpq-dev \
-        libxml2-dev \
-        libzip-dev \
-        libonig-dev \
-    " \
-    && apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y $buildDeps $runtimeDeps \
-    && docker-php-ext-install bcmath bz2 calendar iconv intl mbstring mysqli opcache pdo_mysql pdo_pgsql pgsql soap zip \
-    && docker-php-ext-configure gd --with-freetype --with-jpeg \
-    && docker-php-ext-install gd \
-    && docker-php-ext-configure ldap --with-libdir=lib/x86_64-linux-gnu/ \
-    && docker-php-ext-install ldap \
-    && docker-php-ext-install exif \
-    && pecl install memcached redis \
-    && docker-php-ext-enable memcached.so redis.so \
-    && apt-get purge -y --auto-remove $buildDeps \
-    && rm -r /var/lib/apt/lists/*
+# Download script to install PHP extensions and dependencies
+ADD https://raw.githubusercontent.com/mlocati/docker-php-extension-installer/master/install-php-extensions /usr/local/bin/
+
+RUN chmod uga+x /usr/local/bin/install-php-extensions && sync
+
+RUN DEBIAN_FRONTEND=noninteractive apt-get update -q \
+    && DEBIAN_FRONTEND=noninteractive apt-get install -qq -y \
+      curl \
+      git \
+    && install-php-extensions \
+      bcmath \
+      bz2 \
+      calendar \
+      exif \
+      gd \
+      intl \
+      ldap \
+      memcached \
+      mysqli \
+      opcache \
+      pdo_mysql \
+      pdo_pgsql \
+      pgsql \
+      redis \
+      soap \
+      zip
+# already installed:
+#      iconv \
+#      mbstring \
 
 # Install Composer.
 RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer \