Problems with cache by mime/type

[Jorge Pereira]

Hi Francis,

I sent the wrong snip. the correct is using
$upstream_http_content_type as can be seen below. basically, always
when I use "proxy_cache_bypass  $no_cache;" that impact the value of
"map $upstream_http_content_type $no_cache".... I didn't understand
what is the reason. thanks for any suggestions.

http {
  include       /etc/nginx/mime.types;
  default_type  application/octet-stream;

 map $upstream_http_content_type $no_cache {
    default                             1;
    application/zip                  0;  # *.zip files
    application/octet-stream  0;  # /artifactory/api/pypi and any
other binary files.
    application/java-archive   0;  # *.jar
    application/x-nupkg          0;  # /artifactory/api/nuget/.*/Download/.*
  }

  proxy_cache_path $CACHE_FOLDER
                   levels=1:2
                   keys_zone=artifactory_cache:$CACHE_KEYS_SIZE
                   max_size=$CACHE_SIZE
                   inactive=$CACHE_DURATION
                   use_temp_path=off;

  server {
    listen 80;
    server_name mywww.lan;

    set $upstream https://172.16.0.1/artifactory;

    proxy_read_timeout  10;
    proxy_pass_header   Server;
    proxy_cookie_path   ~*^/.* /;
    proxy_next_upstream http_503 non_idempotent;
    proxy_set_header    Host  $http_host;

    proxy_cache               artifactory_cache;
    proxy_cache_bypass        $no_cache;
    proxy_no_cache            $no_cache;

    add_header X-Proxy-Cache  $upstream_cache_status;

    proxy_cache_key      $scheme$proxy_host$request_uri$auth_cache_key;
    proxy_cache_valid    200 24h;
    proxy_ignore_headers "Set-Cookie" "Cache-control";

    location ~/mypath(?<relative_uri>.*)$ {
      proxy_pass $upstream${relative_uri}${is_args}${args};
    }
  }
}


--
Jorge Pereira
On Fri, Nov 30, 2018 at 11:12 AM Francis Daly <francis at daoine.org> wrote:
>
> On Thu, Nov 29, 2018 at 09:51:13PM -0200, Jorge Pereira wrote:
>
> Hi there,
>
> > I am using the nginx/1.12.0 and I am trying to use the below config.
> > but, the below "map" by "$upstream_http_content_type" is always
> > matching with default value "1". but, if I remove "proxy_cache_bypass"
> > then the map it works. therefore, I need the "proxy_cache_bypass "
> > capability.
>
> It looks like you want to bypass the cache (and therefore always serve
> these requests from upstream), for certain requests.
>
> Is that correct?
>
> If so -- you must set the "$no_cache" variable based on something in
> the request, not on something in the response like a $sent_http_ variable.
>
> >   map $sent_http_content_type $no_cache {
> >     default                   1;
> >
> >     application/zip           0;  # *.zip files
> >     application/octet-stream  0;  # /artifactory/api/pypi and any
> > other binary files.
> >     application/java-archive  0;  # *.jar
> >     application/x-nupkg       0;  # /artifactory/api/nuget/.*/Download/.*
> >   }
>
> Perhaps try setting $no_cache based on $request_uri or $document_uri? That
> might fit three of the four above.
>
> (Alternatively: set $no_cache to 0 by default, and to 1 based on requests
> that you are happy to potentially have served from the cache.)
>
> >     proxy_cache               artifactory_cache;
> >     proxy_cache_bypass        $no_cache;
> >     proxy_no_cache            $no_cache;
>
> Good luck with it,
>
>         f
> --
> Francis Daly        francis at daoine.org
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