Fix version of alpine and upgrade php and composer

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:edge
+FROM alpine:3.17
 LABEL maintainer="Julien Del-Piccolo <[email protected]>"
 LABEL branch=${BRANCH}
 LABEL commit=${COMMIT}
@@ -7,19 +7,20 @@ USER root
 
 COPY . /var/www/localhost/htdocs/
 
-RUN apk update && apk add --no-cache ca-certificates curl apache2 php8-apache2 php8-phar php8-ctype php8-json \
- && apk add --virtual=.build-dependencies openssl php8 php8-openssl php8-iconv php8-mbstring git \
+RUN apk update && apk add --no-cache ca-certificates curl apache2 php81-apache2 php81-phar php81-ctype php81-json \
+ && apk add --virtual=.build-dependencies openssl php81 php81-openssl php81-iconv php81-mbstring git \
+ && ln -sf /usr/bin/php81 /usr/local/bin/php \
  && rm -f /var/www/localhost/htdocs/index.html \
- && curl -sSL https://getcomposer.org/download/2.2.6/composer.phar -o /usr/local/bin/composer \
+ && curl -sSL https://getcomposer.org/download/2.5.1/composer.phar -o /usr/local/bin/composer \
  && chmod +x /usr/local/bin/composer \
  && cd /var/www/localhost/htdocs \
  && composer install --no-dev \
-  ; rm -f /usr/local/bin/composer \
+ && rm -f /usr/local/bin/composer \
  && apk del .build-dependencies \
  && rm -rf /var/cache/apk/* \
  && mkdir -p /run/apache2 \
  && sed -i 's/Listen 80/Listen 8080/' /etc/apache2/httpd.conf \
- && sed -i 's/^variables_order = "GPCS"/variables_order = "EGPCS"/' /etc/php8/php.ini \
+ && sed -i 's/^variables_order = "GPCS"/variables_order = "EGPCS"/' /etc/php81/php.ini \
  && ln -sf /dev/stdout /var/log/apache2/access.log \
  && ln -sf /dev/stderr /var/log/apache2/error.log \
  && ln -sf /var/www/localhost/htdocs/packages /packages \