From 0c4a90b78d67213e56e62c79e5b49d1b2157f247 Mon Sep 17 00:00:00 2001
From: mirsal <mirsal@mirsal.fr>
Date: Sun, 21 Mar 2021 15:45:52 +0000
Subject: [PATCH] Add config options for choosing a webseed backend

Send webseed data from the peertube_data docker volume using sendfile by default
The proxy and CDN backends require that videos are uploaded to the
backend (through fuse mounting for example)
---
 .env.sample     | 17 +++++++++++++++++
 nginx.conf.tmpl | 23 ++++++++++++++++-------
 2 files changed, 33 insertions(+), 7 deletions(-)

diff --git a/.env.sample b/.env.sample
index 32fc78c..b0cf3ad 100644
--- a/.env.sample
+++ b/.env.sample
@@ -11,6 +11,23 @@ PEERTUBE_ADMIN_EMAIL=admin@example.com
 PEERTUBE_SIGNUP_ENABLED=false
 PEERTUBE_TRANSCODING_ENABLED=true
 
+## Webseed backend
+#
+#  If no NGINX_WEBSEED option is enabled, videos will be served
+#  via sendfile, from the the app_data docker volume.
+
+#  If the proxy backend is enabled, nginx will proxy requests to
+#  NGINX_WEBSEED_PROXY_URI and cache video data locally
+#
+#NGINX_WEBSEED_PROXY_ENABLE=true
+#NGINX_WEBSEED_PROXY_URI=https://some-bucket.s3.api-endpoint.net
+
+#  If the CDN backend is enabled, nginx will respond to webseed requests
+#  with redirects to NGINX_WEBSEED_CDN_URI instead of sending video data
+#
+#NGINX_WEBSEED_CDN_ENABLE=true
+#NGINX_WEBSEED_CDN_URI=https://some-bucket.some-cdn.net
+
 ## E-mail settings
 #PEERTUBE_SMTP_HOSTNAME=postfix_relay_app
 #PEERTUBE_SMTP_PORT=25
diff --git a/nginx.conf.tmpl b/nginx.conf.tmpl
index acbf15f..657db2f 100644
--- a/nginx.conf.tmpl
+++ b/nginx.conf.tmpl
@@ -195,12 +195,15 @@ server {
       access_log off;
     }
 
+    aio threads;
+
     # Enabling the sendfile directive eliminates the step of copying the data into the buffer
     # and enables direct copying data from one file descriptor to another.
     sendfile on;
-    sendfile_max_chunk 1M; # prevent one fast connection from entirely occupying the worker process. should be > 800k.
-    aio threads;
+    sendfile_max_chunk 1M; # prevent one fast connection from entirely occupying the worker process.
+                           # should be > 800k.
 
+{{ if (env "NGINX_WEBSEED_PROXY_ENABLE") }}
     proxy_connect_timeout       70;
     proxy_read_timeout          1200;
     proxy_send_timeout          1200;
@@ -218,17 +221,23 @@ server {
     proxy_http_version 1.1;
     proxy_redirect off;
 
+    proxy_pass {{ env "NGINX_WEBSEED_PROXY_URI" }};
+{{ else }}
 
+    {{ if (env "NGINX_WEBSEED_CDN_ENABLE") }}
     # Use this in tandem with fuse-mounting i.e. https://docs.joinpeertube.org/admin-remote-storage
     # to serve files directly from a public bucket without proxying.
     # Assumes you have buckets named after the storage subdirectories, i.e. 'videos', 'redundancy', etc.
-    #set $cdn https://bucket-name.cdn.cloud;
-    #rewrite ^/static/webseed/(.*)$ $cdn/videos/$1 redirect;
-    #rewrite ^/static/(.*)$         $cdn/$1        redirect;
+    set $cdn {{ env "NGINX_WEBSEED_CDN_URI" }};
+    rewrite ^/static/webseed/(.*)$ $cdn/videos/$1 redirect;
+    rewrite ^/static/(.*)$         $cdn/$1        redirect;
+
+    {{ else }}
     rewrite ^/static/webseed/(.*)$ /videos/$1 break;
     rewrite ^/static/(.*)$         /$1        break;
-
     try_files $uri @api;
-    #proxy_pass https://bucket-name.s3.api-endpoint.cloud;
+    {{ end }}
+
+{{ end }}
   }
 }