feat: add support for selfhosted s3 storage (closes #9)

README.md

@@ -34,6 +34,15 @@
 
 [![Deploy on Railway](https://railway.app/button.svg)](https://railway.app/new/template/3ZVgSw?referralCode=tomio)
 
+#### Changing Providers
+
+To change the provider in railway:
+
+1. Open the repo that railway made for you.
+2. Open the [Dockerfile](./Dockerfile)
+3. Edit lines 39 and 44 with `fleet build --release --no-default-features --features <your_provider>`.
+4. Deploy your app again.
+
 ### Pre-built Binaries
 
 **⚠️- You can't change the provider when using the pre-built binaries.**
@@ -108,12 +117,16 @@ cargo build --release --no-default-features --features cloudinary_provider
 #### Environment Variables
 
 - `S3_BUCKET_NAME` - the name of your s3 bucket (required)
-- `S3_REGION` - the region of your s3 bucket (required)
+- `S3_REGION` - the region of your s3 bucket (required, only optional if using [self-hosted s3](#self-hosted-s3-storage))
 - `S3_ACCESS_KEY` - your access key (required)
 - `S3_SECRET_KEY` - your secret key (required)
 - `S3_SECURITY_TOKEN` - your security token (optional)
 - `S3_SESSION_TOKEN` - your session token (optional)
 
+#### Self-hosted S3 Storage
+
+To use a self-hosted S3 Storage, set the `S3_ENDPOINT_URL` environment variable to the endpoint url.
+
 #### Build Command
 
 ```sh

src/providers/s3.rs

@@ -5,7 +5,7 @@ use anyhow::Result;
 use async_trait::async_trait;
 use redis::{AsyncCommands, Client};
 use s3::creds::Credentials;
-use s3::Bucket;
+use s3::{Bucket, Region};
 
 use super::Provider;
 
@@ -33,13 +33,22 @@ impl Provider for S3Provider {
             },
         };
 
+        let region: Region = match env::var("S3_REGION") {
+            Ok(region) => region.parse().expect("Failed to parse s3 region"),
+            Err(_) => {
+                let endpoint = env::var("S3_ENDPOINT_URL").expect("Failed to load s3 endpoint url");
+
+                Region::Custom {
+                    region: "".to_owned(),
+                    endpoint,
+                }
+            },
+        };
+
         let bucket = Arc::new(
             Bucket::new(
                 &env::var("S3_BUCKET_NAME").expect("Failed to load s3 bucket name"),
-                env::var("S3_REGION")
-                    .expect("Failed to load s3 region")
-                    .parse()
-                    .expect("Failed to parse s3 region"),
+                region,
                 creds,
             )
             .expect("Failed to initialize s3 bucket"),