From 232e8f1ba4974462f8805a1c177b5d967fb7271c Mon Sep 17 00:00:00 2001
From: meliurwen <meliurwen@gmail.com>
Date: Thu, 2 Dec 2021 23:52:20 +0100
Subject: [PATCH] Added nginx cache for Invidious

---
 docker-compose.yml                           |  3 ++
 nginx/root/etc/nginx/conf.d/default.template | 30 ++++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/docker-compose.yml b/docker-compose.yml
index 78b5936..2645537 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -11,6 +11,8 @@ services:
     restart: ${NGINX_RESTART:-unless-stopped}
     expose:
       - 80
+    volumes:
+      - nginx-cache:/etc/nginx/cache:rw
     env_file:
       - nginx.env
     networks:
@@ -99,6 +101,7 @@ services:
       - invidious-postgres
 
 volumes:
+    nginx-cache:
     bibliogram-db:
     invidious-postgres-data:
 
diff --git a/nginx/root/etc/nginx/conf.d/default.template b/nginx/root/etc/nginx/conf.d/default.template
index 9dd4086..c299cae 100644
--- a/nginx/root/etc/nginx/conf.d/default.template
+++ b/nginx/root/etc/nginx/conf.d/default.template
@@ -59,6 +59,10 @@ proxy_set_header X-Real-IP $remote_addr;
 proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
 proxy_redirect off;
 
+# Cache for Invidious.
+# Use a maximum of 512GB for the cache which will be valid for 31 days.
+proxy_cache_path /etc/nginx/cache levels=1:2 use_temp_path=off keys_zone=invidious_videos_cache:10m inactive=31d max_size=16g;
+
 server {
     listen ${NGINX_LISTEN_PORT};
     server_name ${BG_HOSTNAME};
@@ -129,4 +133,30 @@ server {
         return 200 "User-agent: *\nDisallow: /\n";
     }
 
+    # Cache videos
+    # Credits: @leonklingele
+    # See: https://github.com/iv-org/invidious/issues/260#issuecomment-518138476
+    location ~ /(latest_version|videoplayback) {
+        proxy_pass http://invidious;
+        proxy_http_version 1.1;
+        proxy_set_header Connection "";
+
+        # Do not remove the following directives.
+        # Otherwise the cache will not be populated.
+        proxy_ignore_headers Cache-Control;
+        proxy_ignore_headers Expires;
+        proxy_ignore_headers X-Accel-Expires;
+        proxy_hide_header Cache-Control;
+        proxy_hide_header Expires;
+        proxy_hide_header Pragma;
+
+        add_header X-Cache-Status $upstream_cache_status;
+
+        proxy_cache invidious_videos_cache;
+        proxy_cache_key "invidious_videos-$request_uri";
+        proxy_cache_methods GET;
+        proxy_cache_valid 200 31d; # Used for /videoplayback responses
+        proxy_cache_valid 302 31d; # Used for /latest_version responses
+    }
+
 }