Alpine as base image to minimize image size

CHANGELOG.md

@@ -9,6 +9,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 ### Added
 - Readme (EN+DE) added.
 
+### Changed
+- An Alpine variant of the base image is now used to minimize the image size.
+
 ## 2021-06-20
 ### Added
 - Default start command added - must no longer be provided.

Dockerfile

@@ -15,9 +15,8 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
-FROM php:8.0-fpm
+FROM php:8.0-fpm-alpine
 ADD https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions /usr/local/bin/
-RUN apt-get update && apt-get install -y procps && rm -rf /var/lib/apt/lists/*
 RUN chmod uga+x /usr/local/bin/install-php-extensions && sync && \
     install-php-extensions zip ssh2 pdo_mysql mysqli
 COPY docker-php-entrypoint-custom /usr/local/bin/