# Media SubDomain

I'm using Wasabi as the backend, but I serve all content via a <https://mediacdn.aus.social/> URL.

This will allow me to quickly switch from Wasabi to BunnyS3 once they support it, by just updating the $s3\_backend path.

## Option 1: Forwarding only

This is my config for aus.social. It forwards all requests for media to the Wasabi bucket.\
\
Example: <https://mediacdn.aus.social/accounts/avatars/000/000/001/original/30ea1ea3b78c6690.jpg> -> <https://s3.ap-southeast-2.wasabisys.com/aussocial/accounts/avatars/000/000/001/original/30ea1ea3b78c6690.jpg>

```
server {
  listen 443 ssl http2;
  listen [::]:443 ssl http2;
  server_name mediacdn.aus.social;
  root /var/www/html;

  keepalive_timeout 30;

  set $s3_backend 'https://s3.ap-southeast-2.wasabisys.com/aussocial';
  location / { return 302 $s3_backend$request_uri; }
  
  ssl_certificate /etc/letsencrypt/live/mediacdn.aus.social/fullchain.pem; # managed by Certbot
  ssl_certificate_key /etc/letsencrypt/live/mediacdn.aus.social/privkey.pem; # managed by Certbot
}

```

## Option 2: Local Caching

This helps if the s3 backend such as Wasabi ever goes down, but puts extra load on the nginx server and required additional local storage.

Mastodon has official documentation to use nginx as a local cache by proxying object storage through nginx.&#x20;

<https://docs.joinmastodon.org/admin/optional/object-storage-proxy/><br>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://bonusmastodon.aus.social/basics/cloud-media-storage-s3-buckets/media-subdomain.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.