Why is nginx so selective in media files?

Question

Nginx

Hello Habr!
There is a site 132619.simplecloud.club , which should have a video on the first slide, but in the error logs nginx gives

open() "/var/www/application/current/public/assets/video.jpg" failed (2: No such file or directory), client: 2323, server: _, request: "GET /asset$...
 open() "/var/www/application/current/public/assets/video.webm" failed (2: No such file or directory), client: 32323, server: _, request: "GET /asse$..
 open() "/var/www/application/current/public/assets/assets/video.jpg" failed (2: No such file or directory), client: 324343...

I checked the permissions of the files, everything is fine, exactly the same as the rest.
Right in the same directory there are other images that are normally returned.
Here is the nginx code with pagespeed

user nginx web;

pid /var/www/run/nginx.pid;
error_log /var/www/log/nginx.error.log;

events {
  worker_connections 1024; # increase if you have lots of clients
  accept_mutex off; # "on" if nginx worker_processes > 1
  use epoll; # enable for Linux 2.6+
  # use kqueue; # enable for FreeBSD, OSX
}

http {
  # nginx will find this file in the config directory set at nginx build time
  include mime.types;
  types_hash_max_size 2048;
  server_names_hash_bucket_size 64;
  # fallback in case we can't determine a type
  default_type application/octet-stream;

  # click tracking!
  access_log /var/www/log/nginx.access.log combined;

  # you generally want to serve static files with nginx since neither
  # Unicorn nor Rainbows! is optimized for it at the moment
  sendfile on;

  tcp_nopush on; # off may be better for *some* Comet/long-poll stuff
  tcp_nodelay off; # on may be better for some Comet/long-poll stuff

  # we haven't checked to see if Rack::Deflate on the app server is
  # faster or not than doing compression via nginx.  It's easier
  # to configure it all in one place here for static files and also
  # to disable gzip for clients who don't get gzip/deflate right.
  # There are other gzip settings that may be needed used to deal with
  # bad clients out there, see http://wiki.nginx.org/NginxHttpGzipModule
  gzip on;
  gzip_http_version 1.0;
  gzip_proxied any;
  gzip_min_length 0;
  gzip_vary on;
  gzip_disable "MSIE [1-6]\.";
  gzip_proxied expired no-cache no-store private auth;
  gzip_comp_level 9;
  gzip_types text/plain text/xml text/css
             text/comma-separated-values
             text/javascript application/x-javascript
             application/atom+xml;

  # this can be any application server, not just Unicorn/Rainbows!
  upstream app_server {
    server unix:/var/www/application/current/tmp/sockets/.unicorn.sock fail_timeout=0;
  }

  server {
    # PageSpeed
    pagespeed on;
    pagespeed FileCachePath /var/ngx_pagespeed_cache;
    location ~ "\.pagespeed\.([a-z]\.)?[a-z]{2}\.[^.]{10}\.[^.]+" {
      add_header "" "";
    }
    location ~ "^/ngx_pagespeed_static/" { }
    location ~ "^/ngx_pagespeed_beacon$" { }
    location /ngx_pagespeed_statistics {
      allow 127.0.0.1; allow 5.228.169.73; deny all;
    }
    location /ngx_pagespeed_global_statistics {
      allow 127.0.0.1; allow 5.228.169.73; deny all;
    }
    pagespeed MessageBufferSize 100000;
    location /ngx_pagespeed_message {
      allow 127.0.0.1; allow 5.228.169.73; deny all;
    }
    location /pagespeed_console {
      allow 127.0.0.1; allow 5.228.169.73; deny all;
    }






    charset utf-8;
    # enable one of the following if you're on Linux or FreeBSD
    listen 80 default deferred; # for Linux
    # listen 80 default accept_filter=httpready; # for FreeBSD

    # If you have IPv6, you'll likely want to have two separate listeners.
    # One on IPv4 only (the default), and another on IPv6 only instead
    # of a single dual-stack listener.  A dual-stack listener will make
    # for ugly IPv4 addresses in $remote_addr (e.g ":ffff:10.0.0.1"
    # instead of just "10.0.0.1") and potentially trigger bugs in
    # some software.
    # listen [::]:80 ipv6only=on; # deferred or accept_filter recommended

    client_max_body_size 4G;
    server_name _;

    # ~2 seconds is often enough for most folks to parse HTML/CSS and
    # retrieve needed images/icons/frames, connections are cheap in
    #   nginx so increasing this is generally safe...
    keepalive_timeout 5;

    # path for static files
    root /var/www/application/current/public;

    # Prefer to serve static files directly from nginx to avoid unnecessary
    # data copies from the application server.
    #
    # try_files directive appeared in in nginx 0.7.27 and has stabilized
    # over time.  Older versions of nginx (e.g. 0.6.x) requires
    # "if (!-f $request_filename)" which was less efficient:
    # http://bogomips.org/unicorn.git/tree/examples/nginx.conf?id=v3.3.1#n127
    try_files $uri/index.html $uri.html $uri @app;

    location ~ ^/(assets)/  {
      root /var/www/application/current/public;

      expires max;
      add_header Cache-Control public;
    }
    location @app {
      # an HTTP header important enough to have its own Wikipedia entry:
      #   http://en.wikipedia.org/wiki/X-Forwarded-For
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

      # enable this if you forward HTTPS traffic to unicorn,
      # this helps Rack set the proper URL scheme for doing redirects:
      # proxy_set_header X-Forwarded-Proto $scheme;

      # pass the Host: header from the client right along so redirects
      # can be set properly within the Rack application
      proxy_set_header Host $http_host;

      # we don't want nginx trying to do something clever with
      # redirects, we set the Host: header above already.
      proxy_redirect off;

      # set "proxy_buffering off" *only* for Rainbows! when doing
      # Comet/long-poll/streaming.  It's also safe to set if you're using
      # only serving fast clients with Unicorn + nginx, but not slow
      # clients.  You normally want nginx to buffer responses to slow
      # clients, even with Rails 3.1 streaming because otherwise a slow
      # client can become a bottleneck of Unicorn.
      #
      # The Rack application may also set "X-Accel-Buffering (yes|no)"
      # in the response headers do disable/enable buffering on a
      # per-response basis.
      # proxy_buffering off;

      proxy_pass http://app_server;
    }

    # Rails error pages
    error_page 500 502 503 504 /500.html;
    location = /500.html {
      root /var/www/application/current/public;
    }
  }
}

I don’t drag in nginx at all, I tried to google / figure it out, but I really didn’t understand anything and didn’t find it.

Answer 1

Published tags to the video through the video_tag helper, everything worked.