Use alpine-based image

REPOSITORY                                      TAG                        IMAGE ID            CREATED             SIZE
elecena/python-php                              3.8-7.3-alpine             c9cc8676df95        12 minutes ago      139MB
elecena/python-php                              3.8-7.3-slim-buster        08d8bd8e85ee        3 hours ago         268MB

Resolves #3

Author: macbre

Dockerfile

@@ -1,24 +1,49 @@
 # elecena.pl (c) 2015-2020
 
 # @see https://hub.docker.com/_/python/
-FROM python:3.8-slim-buster
+FROM python:3.8-alpine
 RUN pip install virtualenv && rm -rf /root/.cache
 
 # install dependencies
-RUN apt-get update && apt-get install -y \
-        php7.3-cli \
-        php7.3-curl \
-        php7.3-json \
-        php7.3-mbstring \
-        php7.3-soap \
-        php7.3-sockets \
-        php7.3-xml && \
-        rm -rf /tmp /var/log/* /var/cache/* /var/lib/apt/lists/*
+RUN apk update && apk add \
+	php7 \
+	php7-calendar \
+	php7-curl \
+	php7-ctype \
+	php7-exif \
+	php7-fileinfo \
+	php7-ftp \
+	php7-gettext \
+	php7-iconv \
+	php7-json \
+	php7-mbstring \
+	php7-opcache \
+	php7-openssl \
+	php7-pcntl \
+	php7-pdo \
+	php7-phar \
+	php7-posix \
+	php7-session \
+	php7-shmop \
+	php7-simplexml \
+	php7-soap \
+	php7-sockets \
+	php7-sodium \
+	php7-sysvmsg \
+	php7-sysvsem \
+	php7-sysvshm \
+	php7-tokenizer \
+	php7-wddx \
+	php7-xmlreader \
+	php7-xmlwriter \
+	php7-xml \
+	php7-xsl \
+	&& rm -rf /tmp /var/log/* /var/cache/*
 
-ENV PHP_VERSION 7.3.14
+ENV PHP_VERSION 7.3.16
 
 # add an info script
 WORKDIR /opt
 
-RUN echo "uname -a; echo -e '\n### Python'; python -V; virtualenv --version; echo -e '\n### PHP'; php -v; php -m" > info.sh
+RUN echo "echo -e '### Python'; python -V; virtualenv --version; echo -e '\n### PHP'; php -v; php -m" > info.sh
 RUN chmod 744 info.sh

README.md

@@ -12,19 +12,17 @@ docker pull elecena/python-php
 ## Installed software
 
 ```
-$ docker run -it elecena/python-php bash info.sh
-
-Linux 0c786277fce3 5.4.0-4-amd64 #1 SMP Debian 5.4.19-1 (2020-02-13) x86_64 GNU/Linux
+$ docker run -it elecena/python-php sh info.sh
 
 ### Python
 Python 3.8.2
 virtualenv 20.0.17 from /usr/local/lib/python3.8/site-packages/virtualenv/__init__.py
 
 ### PHP
-PHP 7.3.14-1~deb10u1 (cli) (built: Feb 16 2020 15:07:23) ( NTS )
+PHP 7.3.16 (cli) (built: Mar 20 2020 11:26:40) ( NTS )
 Copyright (c) 1997-2018 The PHP Group
-Zend Engine v3.3.14, Copyright (c) 1998-2018 Zend Technologies
-    with Zend OPcache v7.3.14-1~deb10u1, Copyright (c) 1999-2018, by Zend Technologies
+Zend Engine v3.3.16, Copyright (c) 1998-2018 Zend Technologies
+    with Zend OPcache v7.3.16, Copyright (c) 1999-2018, by Zend Technologies
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