-
Notifications
You must be signed in to change notification settings - Fork 1
/
default.vcl
66 lines (56 loc) · 1.53 KB
/
default.vcl
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
vcl 4.1;
import std;
import bodyaccess;
# this is the backend that should be cached
backend default {
.host = "$BACKEND_HOST";
.port = "$BACKEND_PORT";
.first_byte_timeout = $BACKEND_FIRST_BYTE_TIMEOUT;
}
# remove cookies from response
sub vcl_backend_response {
if (beresp.http.Cache-Control) {
unset beresp.http.Cache-Control;
}
if (beresp.http.Set-Cookie) {
unset beresp.http.Set-Cookie;
}
set beresp.ttl = $CACHE_TTL;
}
# remove incoming cookies and allow caching POST requests
sub vcl_recv {
unset req.http.X-Body-Len;
unset req.http.cookie;
if (req.method == "POST") {
std.cache_req_body($BODY_SIZE);
set req.http.X-Body-Len = bodyaccess.len_req_body();
if (req.http.X-Body-Len == "-1") {
return (pass);
}
return (hash);
}
}
# https://docs.varnish-software.com/tutorials/caching-post-requests/#step-3-change-the-hashing-function
sub vcl_hash {
# to cache POST and PUT requests
if (req.http.X-Body-Len) {
bodyaccess.hash_req_body();
} else {
hash_data("");
}
}
# https://docs.varnish-software.com/tutorials/caching-post-requests/#step-4-make-sure-the-backend-gets-a-post-request
sub vcl_backend_fetch {
if (bereq.http.X-Body-Len) {
set bereq.method = "POST";
}
}
# add a header to see if it was a cache miss or a cache hit
sub vcl_deliver {
# https://happyculture.coop/blog/varnish-4-comment-savoir-si-votre-page-vient-du-cache
if (resp.http.X-Varnish ~ "[0-9]+ +[0-9]+") {
set resp.http.X-Cache = "HIT";
} else {
set resp.http.X-Cache = "MISS";
}
}