gistfile1.txt

# Set in-memory cache-metadata size in keys_zone, size of video caching and how many days a cached object should persist
proxy_cache_path /cache/nginx/jellyfin-videos levels=1:2 keys_zone=jellyfin-videos:100m inactive=90d max_size=35000m;
proxy_cache_path /cache/nginx/jellyfin levels=1:2 keys_zone=jellyfin:100m max_size=15g inactive=30d use_temp_path=off;
map $request_uri $h264Level { ~(h264-level=)(.+?)& $2; }
map $request_uri $h264Profile { ~(h264-profile=)(.+?)& $2; }

server {
    listen 80;
    listen [::]:80;
    server_name jellyfin.example.com;

    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    server_name jellyfin.example.com;

    # Uncomment next line to Disable TLS 1.0 and 1.1 (Might break older devices)
    # ssl_protocols TLSv1.3 TLSv1.2;

    # use a variable to store the upstream proxy
    # in this example we are using a hostname which is resolved via DNS
    # (if you aren't using DNS remove the resolver line and change the variable to point to an IP address e.g `set $jellyfin 127.0.0.1`)
    set $jellyfin jellyfin-upstream.example.com;

    server_tokens off;

    ssl_certificate /etc/letsencrypt/certificates/example.com.crt;
    ssl_certificate_key /etc/letsencrypt/certificates/example.com.key;
    ssl_session_timeout 1d;
    ssl_session_cache shared:MozSSL:10m;  # about 40000 sessions
    ssl_session_tickets off;

    # curl https://ssl-config.mozilla.org/ffdhe2048.txt > /path/to/dhparam
    ssl_dhparam /etc/nginx/dhparam;

    # intermediate configuration
    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;
    ssl_prefer_server_ciphers off;

    # OCSP stapling
    ssl_stapling on;
    ssl_stapling_verify on;

    client_max_body_size 1024M;

    gzip off;

    add_header X-Frame-Options "SAMEORIGIN";
    add_header X-XSS-Protection "0"; # Do NOT enable. This is obsolete/dangerous
    add_header X-Content-Type-Options "nosniff";

    # COOP/COEP. Disable if you use external plugins/images/assets
    add_header Cross-Origin-Opener-Policy "same-origin" always;
    add_header Cross-Origin-Embedder-Policy "require-corp" always;
    add_header Cross-Origin-Resource-Policy "same-origin" always;

    # Permissions policy. May cause issues on some clients
    add_header Permissions-Policy "accelerometer=(), ambient-light-sensor=(), battery=(), bluetooth=(), camera=(), clipboard-read=(), display-capture=(), document-domain=(), encrypted-media=(), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), payment=(), publickey-credentials-get=(), serial=(), sync-xhr=(), usb=(), xr-spatial-tracking=()" always;

    # Tell browsers to use per-origin process isolation
    add_header Origin-Agent-Cluster "?1" always;


    # Content Security Policy
    # See: https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP
    # Enforces https content and restricts JS/CSS to origin
    # External Javascript (such as cast_sender.js for Chromecast) must be whitelisted.
    # NOTE: The default CSP headers may cause issues with the webOS app
    #add_header Content-Security-Policy "default-src https: data: blob: http://image.tmdb.org; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' https://www.gstatic.com https://www.youtube.com blob:; worker-src 'self' blob:; connect-src 'self'; object-src 'none'; frame-ancestors 'self'";

    location = / {
        return 302 http://$host/web/;
        #return 302 https://$host/web/;
    }

    location ~ /Items/(.*)/Images {
        proxy_pass http://$jellyfin:8096;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Protocol $scheme;
        proxy_set_header X-Forwarded-Host $http_host;
      
        proxy_cache jellyfin;
        proxy_cache_revalidate on;
        proxy_cache_lock on;
        add_header X-Cache-Status $upstream_cache_status; # This is only to check if cache is working
    }

    location ~* ^/Videos/(.*)/(?!live)
    {
        # Set size of a slice (this amount will be always requested from the backend by nginx)
        # Higher value means more latency, lower more overhead
        # This size is independent of the size clients/browsers can request
        slice 2m;

        proxy_cache jellyfin-videos;
        proxy_cache_valid 200 206 301 302 30d;
        proxy_ignore_headers Expires Cache-Control Set-Cookie X-Accel-Expires;
        proxy_cache_use_stale error timeout invalid_header updating http_500 http_502 http_503 http_504;
        proxy_connect_timeout 15s;
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        # Transmit slice range to the backend
        proxy_set_header Range $slice_range;

        # This saves bandwidth between the proxy and jellyfin, as a file is only downloaded one time instead of multiple times when multiple clients want to at the same time
        # The first client will trigger the download, the other clients will have to wait until the slice is cached
        # Esp. practical during SyncPlay
        proxy_cache_lock on;
        proxy_cache_lock_age 60s;

        proxy_pass http://$jellyfin:8096;
        proxy_cache_key "jellyvideo$uri?MediaSourceId=$arg_MediaSourceId&VideoCodec=$arg_VideoCodec&AudioCodec=$arg_AudioCodec&AudioStreamIndex=$arg_AudioStreamIndex&VideoBitrate=$arg_VideoBitrate&AudioBitrate=$arg_AudioBitrate&SubtitleMethod=$arg_SubtitleMethod&TranscodingMaxAudioChannels=$arg_TranscodingMaxAudioChannels&RequireAvc=$arg_RequireAvc&SegmentContainer=$arg_SegmentContainer&MinSegments=$arg_MinSegments&BreakOnNonKeyFrames=$arg_BreakOnNonKeyFrames&h264-profile=$h264Profile&h264-level=$h264Level&slicerange=$slice_range";

        add_header X-Cache-Status $upstream_cache_status; # This is only for debugging cache

    }

    location / {
        # Proxy main Jellyfin traffic
        proxy_pass http://$jellyfin:8096;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Protocol $scheme;
        proxy_set_header X-Forwarded-Host $http_host;

        # Disable buffering when the nginx proxy gets very resource heavy upon streaming
        proxy_buffering off;
    }

    # location block for /web - This is purely for aesthetics so /web/#!/ works instead of having to go to /web/index.html/#!/
    location = /web/ {
        # Proxy main Jellyfin traffic
        proxy_pass http://$jellyfin:8096/web/index.html;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Protocol $scheme;
        proxy_set_header X-Forwarded-Host $http_host;
    }

    location /socket {
        # Proxy Jellyfin Websockets traffic
        proxy_pass http://$jellyfin:8096;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        proxy_set_header X-Forwarded-Protocol $scheme;
        proxy_set_header X-Forwarded-Host $http_host;
    }
}