php 8.1 support & reduce image size

Dockerfile

@@ -1,6 +1,7 @@
-FROM php:8.0-cli
+FROM php:8.1-cli
 
 ADD https://github.com/ufoscout/docker-compose-wait/releases/download/2.9.0/wait /usr/local/bin/docker-compose-wait
+ADD docker/php/conf.d/. "$PHP_INI_DIR/conf.d/"
 
 RUN apt-get update && apt-get upgrade -y \
     && apt-get install apt-utils procps -y \
@@ -25,20 +26,6 @@ RUN apt-get update && apt-get upgrade -y \
     && apt-get autoremove --purge -y && apt-get autoclean -y && apt-get clean -y \
     && rm -rf /usr/src
 
-COPY . /app
-WORKDIR /app
-
-RUN cp -a docker/php/conf.d/. "$PHP_INI_DIR/conf.d/" \
-    && composer install -o --no-dev \
-    && composer clear
-
-#Creating symlink to save .env in volume
-RUN mkdir /app/sessions &&  \
-    touch '/app/sessions/.env.docker' && \
-    ln -s '/app/sessions/.env.docker' '/app/.env.docker'
-
-VOLUME ["/app/sessions"]
-
 EXPOSE 9503
 
 ENTRYPOINT docker-compose-wait && nice -n 20 php server.php -e=.env.docker --docker -s=*

composer.json

@@ -18,7 +18,7 @@
     "madelineproto"
   ],
   "require": {
-    "php": "~8.0",
+    "php": "~8.0|~8.1",
     "ext-json": "*",
     "ext-mbstring": "*",
     "ext-pcntl": "*",