Example of omero web rendering cache for nginx

omero-web-cache.conf

proxy_cache_path /data/omero-cache levels=1:2 keys_zone=omero:200m inactive=30d use_temp_path=off;

map $request_uri $skip_cache
{
  default 1;
  "~web(client|gateway)/(render)_*"    0;
}

upstream omeroweb_omero {
  ...

server {
  ...

  location @proxy_to_app_omero {
    
    proxy_cache                 omero;
    proxy_cache_key             $request_uri;

    proxy_cache_valid           200 30d;
    proxy_cache_methods         GET HEAD; # Only GET and HEAD methods apply
    proxy_cache_use_stale       error timeout invalid_header updating http_500 http_502 http_503 http_504;

    proxy_cache_bypass          $skip_cache;
    proxy_no_cache              $skip_cache;

    proxy_ignore_headers        "Set-Cookie" "Vary" "Expires";

    proxy_set_header            X-Forwarded-Proto   $scheme;
    proxy_set_header            X-Real-IP           $remote_addr;
    proxy_set_header            X-Forwarded-For     $proxy_add_x_forwarded_for;
    proxy_set_header            Host                $http_host;
    proxy_redirect off;
    # must be turned on for caching
    # proxy_buffering off;

    proxy_pass http://omeroweb_omero;

    # DEBUGGING: TURN OFF ON PROD
    add_header                  X-Proxy-Cache      $upstream_cache_status;
    add_header                  X-Proxy-Cache-Skip $skip_cache;
}