Ghost on Varnish

#
# Varnish VCL file for Ghost blogging platform.
# http://ghost.org/
#
# Written for Ghost v0.3.0.
# Adapted for Ghost v0.5.2 by twkr.
#
# This is a low-hanging-fruit type of VCL. TTL of objects are overridden to 2
# minutes, and everything below /ghost/ is pass()-ed so the user sessions
# work.
#
# Author: Lasse Karstensen <[email protected]>, September 2013.


backend default {
	.host = "localhost";
	.port = "8081";
}


sub vcl_recv {
	# If the client uses shift-F5, get (and cache) a fresh copy. Nice for systems without content invalidation. Big sites will want to disable this.
	if (req.http.cache-control ~ "no-cache") {
		set req.hash_always_miss = true;
	}

set req.http.x-pass = "false";
	# TODO: I haven't seen any urls for logging access. When the analytics parts of ghost are done, this needs to be added in the exception list below.
	if (req.url ~ "^/(api|signout)") {
		set req.http.x-pass = "true";
	} elseif (req.url ~ "^/ghost" && (req.url !~ "^/ghost/(img|css|fonts)")) {
		set req.http.x-pass = "true";
	}

	if (req.http.x-pass == "true") {
		return(pass);
	}
	unset req.http.cookie;
}

# Only modify cookies/ttl outside of the management interface.
sub vcl_fetch {
	if (req.http.x-pass != "true") {
		unset beresp.http.set-cookie;
		if (beresp.status < 500 && beresp.ttl == 0s) {
		set beresp.ttl = 2m;
		}
	}
}