Re: [Tiki-devel] Caching with Nginx

The following URLs are very interesting

* https://dev.tiki.blue/AdminUIRevamp
* https://dev.tiki.org/AdminUIRevamp

On Fri, Jun 4, 2021 at 7:08 PM Fabio Montefuscolo <
[email protected]> wrote:

> The initial strategy can be using microcaching and stale cache feature.
>
> Microcaching would cache a resource just for few minutes, 1 or 5 minutes.
> This way we avoid computing the same request that probably will deliver the
> same resource in 5 minutes.
>
> We don't destroy the cache objects aging more than 5 minutes. We keep
> there in case PHP or other upstream goes down. Then, instead serving an
> error, we can deliver the old cache.
>
> Of course, that will depend on the business you are handling. Sometimes
> the error is better than old info.
>
>
>
>
> On Fri, Jun 4, 2021 at 6:58 PM Fabio Montefuscolo <
> [email protected]> wrote:
>
>> Hello people!
>>
>> As I said before, Nginx is a great tool for caching. Just for fun, I
>> tried to cache everything from dev.tiki.org, but proxying from my
>> server. I have a domain, dev.tiki.blue proxying and caching dev.tiki.org.
>> The first request to a page might be slow, the second is faster.
>>
>> Important things if someone wants to check
>>
>> * it is an experiment!
>> * there are no rules to bypass the cache for GET methods ... so please DO
>> NOT LOGIN there, otherwise, your private pages will be cached.
>> * there is no cache to POST and PUT methods, so the search is not cached
>>
>> Not sure if attachments work here, so I am pasting the Nginx config below
>> ...
>>
>> ------
>> proxy_cache_path /var/cache/devto-cache levels=1:2 keys_zone=DEVTO:50m
>>  max_size=10g inactive=1y use_temp_path=off;
>>
>> server {
>>         listen 80;
>>         server_name dev.tiki.blue;
>>         access_log /var/log/virtualmin/dev.tiki.blue_access_log;
>>         error_log /var/log/virtualmin/dev.tiki.blue_error_log;
>>
>>         root /home/tiki/domains/dev.tiki.blue/public_html;
>>         index index.html index.htm index.php;
>>
>>         location / {
>>                 return 301 https://$server_name$request_uri;
>>         }
>> }
>>
>> server {
>>         listen 443 ssl;
>>         server_name dev.tiki.blue;
>>
>>         root /home/tiki/domains/dev.tiki.blue/public_html;
>>         index index.html index.htm index.php;
>>         access_log /var/log/virtualmin/dev.tiki.blue_access_log;
>>         error_log /var/log/virtualmin/dev.tiki.blue_error_log;
>>
>>         set $skip_cache 0;
>>
>>         proxy_cache_key "$scheme$request_method$host$request_uri";
>>         proxy_cache DEVTO;
>>         proxy_cache_use_stale error updating timeout invalid_header
>> http_500 http_503;
>>         proxy_cache_background_update on;
>>         proxy_cache_lock on;
>>         proxy_cache_valid 200 301 302 404 5m;
>>         proxy_buffers 16 16k;
>>         proxy_buffer_size 32k;
>>         proxy_ignore_headers Cache-Control Expires Set-Cookie;
>>         proxy_cache_bypass $skip_cache;
>>         proxy_no_cache $skip_cache;
>>
>>         location / {
>>                 expires 10m;
>>                 add_header X-Cache $upstream_cache_status;
>>                 add_header Last-Modified $upstream_http_date;
>>                 proxy_set_header X-Real-IP $remote_addr;
>>                 proxy_set_header Host "dev.tiki.org";
>>                 proxy_set_header Accept-Encoding "";
>>                 proxy_redirect ~^https?://dev\.tiki\.org(/.*)
>> $scheme://$server_name$1;
>>                 proxy_pass https://dev.tiki.org;
>>                 subs_filter "https?://dev.tiki.org" "
>> https://dev.tiki.blue" gr;
>>         }
>>
>>         location = /tiki-login_scr.php {
>>                 return 403;
>>         }
>>         location = /tiki-login.php {
>>                 return 403;
>>         }
>>
>>         ssl_certificate /home/tiki/domains/dev.tiki.blue/ssl.combined;
>>         ssl_certificate_key /home/tiki/domains/dev.tiki.blue/ssl.key;
>> }
>>
>

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