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Merge branch 'varnish-improvements' into 'develop'

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More Varnish improvements

See merge request pleroma/pleroma!667
This commit is contained in:
feld 2019-05-28 21:20:24 +00:00
commit 26e7613824
1 changed files with 35 additions and 35 deletions
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70
installation/pleroma.vcl
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@ -1,4 +1,4 @@
vcl 4.0; vcl 4.1;
import std; import std;
backend default { backend default {
@ -35,24 +35,6 @@ sub vcl_recv {
} }
return(purge); return(purge);
} }
# Pleroma MediaProxy - strip headers that will affect caching
if (req.url ~ "^/proxy/") {
unset req.http.Cookie;
unset req.http.Authorization;
unset req.http.Accept;
return (hash);
}
# Strip headers that will affect caching from all other static content
# This also permits caching of individual toots and AP Activities
if ((req.url ~ "^/(media|static)/") ||
(req.url ~ "(?i)\.(html|js|css|jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|mp4|ogg|webm|svg|swf|ttf|pdf|woff|woff2)$"))
{
unset req.http.Cookie;
unset req.http.Authorization;
return (hash);
}
} }
sub vcl_backend_response { sub vcl_backend_response {
@ -61,6 +43,12 @@ sub vcl_backend_response {
set beresp.do_gzip = true; set beresp.do_gzip = true;
} }
# Retry broken backend responses.
if (beresp.status == 503) {
set bereq.http.X-Varnish-Backend-503 = "1";
return (retry);
}
# CHUNKED SUPPORT # CHUNKED SUPPORT
if (bereq.http.x-range ~ "bytes=" && beresp.status == 206) { if (bereq.http.x-range ~ "bytes=" && beresp.status == 206) {
set beresp.ttl = 10m; set beresp.ttl = 10m;
@ -73,8 +61,6 @@ sub vcl_backend_response {
return (deliver); return (deliver);
} }
# Default object caching of 86400s;
set beresp.ttl = 86400s;
# Allow serving cached content for 6h in case backend goes down # Allow serving cached content for 6h in case backend goes down
set beresp.grace = 6h; set beresp.grace = 6h;
@ -90,20 +76,6 @@ sub vcl_backend_response {
set beresp.ttl = 30s; set beresp.ttl = 30s;
return (deliver); return (deliver);
} }
# Pleroma MediaProxy internally sets headers properly
if (bereq.url ~ "^/proxy/") {
return (deliver);
}
# Strip cache-restricting headers from Pleroma on static content that we want to cache
if (bereq.url ~ "(?i)\.(js|css|jpg|jpeg|png|gif|gz|tgz|bz2|tbz|mp3|mp4|ogg|webm|svg|swf|ttf|pdf|woff|woff2)$")
{
unset beresp.http.set-cookie;
unset beresp.http.Cache-Control;
unset beresp.http.x-request-id;
set beresp.http.Cache-Control = "public, max-age=86400";
}
} }
# The synthetic response for 301 redirects # The synthetic response for 301 redirects
@ -132,10 +104,32 @@ sub vcl_hash {
} }
sub vcl_backend_fetch { sub vcl_backend_fetch {
# Be more lenient for slow servers on the fediverse
if bereq.url ~ "^/proxy/" {
set bereq.first_byte_timeout = 300s;
}
# CHUNKED SUPPORT # CHUNKED SUPPORT
if (bereq.http.x-range) { if (bereq.http.x-range) {
set bereq.http.Range = bereq.http.x-range; set bereq.http.Range = bereq.http.x-range;
} }
if (bereq.retries == 0) {
# Clean up the X-Varnish-Backend-503 flag that is used internally
# to mark broken backend responses that should be retried.
unset bereq.http.X-Varnish-Backend-503;
} else {
if (bereq.http.X-Varnish-Backend-503) {
if (bereq.method != "POST" &&
std.healthy(bereq.backend) &&
bereq.retries <= 4) {
# Flush broken backend response flag & try again.
unset bereq.http.X-Varnish-Backend-503;
} else {
return (abandon);
}
}
}
} }
sub vcl_deliver { sub vcl_deliver {
@ -145,3 +139,9 @@ sub vcl_deliver {
unset resp.http.CR; unset resp.http.CR;
} }
} }
sub vcl_backend_error {
# Retry broken backend responses.
set bereq.http.X-Varnish-Backend-503 = "1";
return (retry);
}