Merge branch 'docs/storing-remote-media' into 'develop'

Document how to store remote media permanently

See merge request pleroma/pleroma!1871
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lain 2020-05-18 11:59:07 +00:00
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# Storing Remote Media
Pleroma does not store remote/federated media by default. The best way to achieve this is to change Nginx to keep its reverse proxy cache
for a year and to activate the `MediaProxyWarmingPolicy` MRF policy in Pleroma which will automatically fetch all media through the proxy
as soon as the post is received by your instance.
## Nginx
```
proxy_cache_path /long/term/storage/path/pleroma-media-cache levels=1:2
keys_zone=pleroma_media_cache:10m inactive=1y use_temp_path=off;
location ~ ^/(media|proxy) {
proxy_cache pleroma_media_cache;
slice 1m;
proxy_cache_key $host$uri$is_args$args$slice_range;
proxy_set_header Range $slice_range;
proxy_http_version 1.1;
proxy_cache_valid 206 301 302 304 1h;
proxy_cache_valid 200 1y;
proxy_cache_use_stale error timeout invalid_header updating;
proxy_ignore_client_abort on;
proxy_buffering on;
chunked_transfer_encoding on;
proxy_ignore_headers Cache-Control Expires;
proxy_hide_header Cache-Control Expires;
proxy_pass http://127.0.0.1:4000;
}
```
## Pleroma
Add to your `prod.secret.exs`:
```
config :pleroma, :instance,
rewrite_policy: [Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy]
```