locking the ubuntu version to prevent issues with any latest images, compacting the RUN commands

Author: Matthew Vincent

Dockerfile

@@ -1,6 +1,9 @@
-FROM ubuntu:latest
-MAINTAINER Montala Ltd
+FROM ubuntu:24.04
+
+LABEL org.opencontainers.image.authors="Montala Ltd"
+
 ENV DEBIAN_FRONTEND="noninteractive"
+
 RUN apt-get update && apt-get install -y \
     nano \
     imagemagick \
@@ -28,11 +31,13 @@ RUN apt-get update && apt-get install -y \
     python3-opencv \
     python3 \
     python3-pip \
+ && apt-get clean \
  && rm -rf /var/lib/apt/lists/*
-RUN sed -i -e "s/upload_max_filesize\s*=\s*2M/upload_max_filesize = 100M/g" /etc/php/8.3/apache2/php.ini                                                      
-RUN sed -i -e "s/post_max_size\s*=\s*8M/post_max_size = 100M/g" /etc/php/8.3/apache2/php.ini                                                                  
-RUN sed -i -e "s/max_execution_time\s*=\s*30/max_execution_time = 300/g" /etc/php/8.3/apache2/php.ini                                                      
-RUN sed -i -e "s/memory_limit\s*=\s*128M/memory_limit = 1G/g" /etc/php/8.3/apache2/php.ini
+
+RUN sed -i -e "s/upload_max_filesize\s*=\s*2M/upload_max_filesize = 100M/g" /etc/php/8.3/apache2/php.ini \
+ && sed -i -e "s/post_max_size\s*=\s*8M/post_max_size = 100M/g" /etc/php/8.3/apache2/php.ini \
+ && sed -i -e "s/max_execution_time\s*=\s*30/max_execution_time = 300/g" /etc/php/8.3/apache2/php.ini \
+ && sed -i -e "s/memory_limit\s*=\s*128M/memory_limit = 1G/g" /etc/php/8.3/apache2/php.ini
 
 RUN printf '<Directory /var/www/>\n\
 \tOptions FollowSymLinks\n\
@@ -42,9 +47,11 @@ RUN printf '<Directory /var/www/>\n\
 ADD cronjob /etc/cron.daily/resourcespace
 
 WORKDIR /var/www/html
-RUN rm index.html
-RUN svn co -q https://svn.resourcespace.com/svn/rs/releases/10.5 .
-RUN mkdir filestore
-RUN chmod 777 filestore
-RUN chmod -R 777 include/
+
+RUN rm -f index.html \
+ && svn co -q https://svn.resourcespace.com/svn/rs/releases/10.5 . \
+ && mkdir -p filestore \
+ && chmod 777 filestore \
+ && chmod -R 777 include/
+
 CMD apachectl -D FOREGROUND