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reddit_stock_analyzer/config/varnish/default.vcl
2025-07-31 00:15:51 +02:00

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vcl 4.1;
# https://github.com/varnish/toolbox/tree/master/vcls/hit-miss
include "hit-miss.vcl";
import std;
backend default {
.host = "rstat-dashboard";
.port = "5000";
}
acl purge {
"localhost";
"nginx";
"127.0.0.1";
}
sub vcl_recv {
set req.http.Host = regsub(req.http.Host, ":[0-9]+", "");
unset req.http.proxy;
set req.url = std.querysort(req.url);
set req.url = regsub(req.url, "\?$", "");
set req.http.Surrogate-Capability = "key=ESI/1.0";
if (req.url ~ "/purge-cache") {
if (!client.ip ~ purge) {
return(synth(403, "Not allowed."));
}
ban("req.http.host == rstat.net");
return(synth(200, "Cache cleared"));
}
if (!req.http.X-Forwarded-Proto) {
if(std.port(server.ip) == 443 || std.port(server.ip) == 8443) {
set req.http.X-Forwarded-Proto = "https";
} else {
set req.http.X-Forwarded-Proto = "https";
}
}
# Cache static files
if (req.url ~ "^[^?]*\.(7z|avi|bmp|bz2|css|csv|doc|docx|eot|flac|flv|gif|gz|ico|jpeg|jpg|js|less|mka|mkv|mov|mp3|mp4|mpeg|mpg|odt|ogg|ogm|opus|otf|pdf|png|ppt|pptx|rar|rtf|svg|svgz|swf|tar|tbz|tgz|ttf|txt|txz|wav|webm|webp|woff|woff2|xls|xlsx|xml|xz|zip)(\?.*)?$") {
unset req.http.Cookie;
return(hash);
}
# Remove all cookies for other requests
unset req.http.Cookie;
return(hash);
}
sub vcl_hash {
hash_data(req.http.X-Forwarded-Proto);
}
sub vcl_backend_response {
# Cache static files and other content in Varnish for 1 year
set beresp.ttl = 1m;
# Enable stale content serving
set beresp.grace = 24h;
# Preserve the origin's Cache-Control header for client-side caching
if (beresp.http.Cache-Control) {
set beresp.http.X-Orig-Cache-Control = beresp.http.Cache-Control;
}
}
sub vcl_deliver {
# Restore the origin's Cache-Control header for the browser
if (resp.http.X-Orig-Cache-Control) {
set resp.http.Cache-Control = resp.http.X-Orig-Cache-Control;
unset resp.http.X-Orig-Cache-Control;
} else {
# If no Cache-Control was set by the origin, we'll set a default
set resp.http.Cache-Control = "no-cache, must-revalidate";
}
}