add an S3 storage variant image

Dockerfile

@@ -1,7 +1,7 @@
 FROM alpine:3.16.2
 
 ARG ALPINE_PACKAGES="php8-pdo_mysql php8-pdo_pgsql php8-openssl"
-ARG COMPOSER_PACKAGES=google/cloud-storage
+ARG COMPOSER_PACKAGES="aws/aws-sdk-php google/cloud-storage"
 ARG PBURL=https://github.com/PrivateBin/PrivateBin/
 ARG RELEASE=1.4.0
 ARG UID=65534

README.md

@@ -6,10 +6,11 @@ This repository contains the Dockerfile and resources needed to create a docker
 
 ## Image variants
 
-This is the all-in-one image that can be used with any storage backend supported by PrivateBin: File based storage, database or Google Cloud Storage. We also offer dedicated images for each backend:
+This is the all-in-one image that can be used with any storage backend supported by PrivateBin: File based storage, databases, Google Cloud or S3 Storage. We also offer dedicated images for each backend:
 - [Image for file based storage](https://hub.docker.com/r/privatebin/fs)
 - [Image for PostgreSQL, MariaDB & MySQL](https://hub.docker.com/r/privatebin/pdo)
 - [Image for Google Cloud Storage](https://hub.docker.com/r/privatebin/gcs)
+- [Image for S3 Storage](https://hub.docker.com/r/privatebin/s3)
 
 ## Image tags
 

README.s3.md

@@ -0,0 +1,7 @@
+# PrivateBin on Nginx, php-fpm & Alpine with S3 Storage backend
+
+**PrivateBin** is a minimalist, open source online [pastebin](https://en.wikipedia.org/wiki/Pastebin) where the server has zero knowledge of pasted data. Data is encrypted and decrypted in the browser using 256bit AES in [Galois Counter mode](https://en.wikipedia.org/wiki/Galois/Counter_Mode).
+
+## Image variants
+
+This is an image optimized for the S3 Storage backend. Please see the [generic image](https://hub.docker.com/r/privatebin/nginx-fpm-alpine) for details on how to use this image, other images variants and the different tags.

buildx.sh

@@ -56,11 +56,14 @@ main() {
         fs)
             BUILD_ARGS="--build-arg ALPINE_PACKAGES= --build-arg COMPOSER_PACKAGES="
             ;;
+        gcs)
+            BUILD_ARGS="--build-arg ALPINE_PACKAGES=php8-openssl --build-arg COMPOSER_PACKAGES=google/cloud-storage"
+            ;;
         pdo)
             BUILD_ARGS="--build-arg ALPINE_PACKAGES=php8-pdo_mysql,php8-pdo_pgsql --build-arg COMPOSER_PACKAGES="
             ;;
-        gcs)
-            BUILD_ARGS="--build-arg ALPINE_PACKAGES=php8-openssl"
+        s3)
+            BUILD_ARGS="--build-arg ALPINE_PACKAGES=php8-openssl --build-arg COMPOSER_PACKAGES=aws/aws-sdk-php"
             ;;
         *)
             BUILD_ARGS=""