Merge pull request 'Migrate to Alpine' (#5) from development into master

Reviewed-on: #5

Dockerfile

@@ -1,12 +1,10 @@
-FROM ubuntu:23.04
+FROM alpine:3.18.2
 
 # Install dependencies
-RUN apt update
-RUN DEBIAN_FRONTEND=noninteractive \
-apt install nginx php8.1 php8.1-fpm php8.1-gd php8.1-imagick -y
-
-# Clean up
-RUN apt clean
+RUN apk update && \
+    apk upgrade && \
+    apk add --no-cache nginx php81 php81-fpm php81-gd && \
+    rm -rf /var/cache/apk/*
 
 # Set up nginx
 COPY ./docker/nginx.conf /etc/nginx/nginx.conf
@@ -16,4 +14,4 @@ COPY ./upload.php /tmp/upload.php
 COPY ./docker/start.sh /start.sh
 
 # Start server
-CMD ["bash", "/start.sh"]
+CMD ["sh", "/start.sh"]

docker/nginx.conf

@@ -44,7 +44,7 @@ http {
       try_files $uri =404;
 
       fastcgi_split_path_info ^(.+\.php)(/.+)$;
-      fastcgi_pass unix:/run/php/php8.1-fpm.sock;
+      fastcgi_pass unix:/run/php/php.sock;
       fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
       fastcgi_param SCRIPT_NAME $fastcgi_script_name;
       fastcgi_index index.php;

docker/start.sh

@@ -1,18 +1,29 @@
-if [[ -z "${MAX_UPLOAD_SIZE}" ]]; then
+#!/bin/sh
+
+# TODO: add all the other fallback values for the other variables
+if [ -z "$MAX_UPLOAD_SIZE" ]; then
   MAX_UPLOAD_SIZE="8M"  # Default fallback value
+  echo "MAX_UPLOAD_SIZE was not set, using default value of ${MAX_UPLOAD_SIZE}"
 fi
 
 echo "Checking if upload script exists in /var/www/html"
 if [ -f "/var/www/html/upload.php" ]; then
-    echo "Upload script was found, ignoring copy."
+  echo "Upload script was found, ignoring copy."
 else
-    cp /tmp/upload.php /var/www/html
-    echo "Upload script was not found, copying it."
+  cp /tmp/upload.php /var/www/html
+  echo "Upload script was not found, copying it."
 fi
 
 # Letting php know that we are running in docker
-echo "env[DOCKER] = true" >> /etc/php/8.1/fpm/pool.d/www.conf
-echo "clear_env = no" >> /etc/php/8.1/fpm/pool.d/www.conf
+echo "env[DOCKER] = true" >> /etc/php81/php-fpm.d/www.conf
+echo "clear_env = no" >> /etc/php81/php-fpm.d/www.conf
+
+# Create the directory for PHP socket
+mkdir -p /run/php
+
+# Set php-fpm to listen on socket
+touch /run/php/php.sock
+sed -i 's/^listen = .*/listen = \/run\/php\/php.sock/' /etc/php81/php-fpm.d/www.conf
 
 echo "Setting permissions for upload script"
 chmod 777 /var/www/html/upload.php
@@ -20,16 +31,16 @@ chmod 777 /var/www/html/upload.php
 echo "Setting max upload size to ${MAX_UPLOAD_SIZE}"
 
 # Set max upload size for php
-sed -i "s/^upload_max_filesize = .*/upload_max_filesize = ${MAX_UPLOAD_SIZE}/" /etc/php/8.1/fpm/php.ini
-sed -i "s/^post_max_size = .*/post_max_size = ${MAX_UPLOAD_SIZE}/" /etc/php/8.1/fpm/php.ini
+sed -i "s/^upload_max_filesize = .*/upload_max_filesize = ${MAX_UPLOAD_SIZE}/" /etc/php81/php.ini
+sed -i "s/^post_max_size = .*/post_max_size = ${MAX_UPLOAD_SIZE}/" /etc/php81/php.ini
 
 # Set max upload size for nginx
 sed -i "s/client_max_body_size 500M;/client_max_body_size ${MAX_UPLOAD_SIZE};/" /etc/nginx/nginx.conf
 
 function start() {
   echo "Starting PHP & Nginx"
-  /etc/init.d/php8.1-fpm start &&
-  chmod 777 /run/php/php8.1-fpm.sock &&
+  php-fpm81 &&
+  chmod 777 /run/php/php.sock &&
   nginx -g 'daemon off;'
 }
 

upload.php

@@ -162,28 +162,13 @@ try {
 
   // Check the file type and size
   if ($shouldConvertToWebp && in_array($fileType, ["png", "jpeg", "jpg"]) && $_FILES["sharex"]["size"] > $webpThreadhold) {
-    // Create an Imagick object from the uploaded file
-    $image = new Imagick($_FILES["sharex"]["tmp_name"]);
-
-    // Convert the image to WebP
-    $image->setImageFormat("webp");
-    $image->setImageCompressionQuality($webpQuality);
-
-    // Set the output filename
+    $image = imagecreatefromstring(file_get_contents($_FILES["sharex"]["tmp_name"]));
     $webp_file = pathinfo($finalName, PATHINFO_FILENAME) . ".webp";
-
-    // Save the converted image
-    $image->writeImage($webp_file);
-
-    // Free up memory
-    $image->clear();
-    $image->destroy();
-
-    $fileSize = filesize($webp_file); // Update the file size
-
-    // Update the final filename
+    imagewebp($image, $webp_file, 90); // Convert the image and save it
+    imagedestroy($image); // Free up memory
     $finalName = $webp_file;
-    $needsToBeSaved = false;
+    $shouldSave = false;
+    $fileSize = filesize($webp_file); // Update the file size
   }
 
   if ($needsToBeSaved) { // Save the file if it has not been saved yet