add varnish module

[dsa-puppet.git] / modules / varnish / files / default.vcl

diff --git a/modules/varnish/files/default.vcl b/modules/varnish/files/default.vcl
new file mode 100644 (file)
index 0000000..cb946cf
--- /dev/null
+++ b/modules/varnish/files/default.vcl
@@ -0,0 +1,80 @@
+backend holter {
+        # holter.debian.org
+        .host = "194.177.211.202";
+        .port = "80";
+}
+backend powell {
+        # powell.debian.org
+        .host = "87.106.64.223";
+        .port = "80";
+}
+
+sub vcl_recv {
+
+        # Add a unique header containing the client address
+        remove req.http.X-Forwarded-For;
+        set    req.http.X-Forwarded-For = req.http.rlnclientipaddr;
+
+        ### restart logic, this will redefine the backends if vcl_restart has been triggered
+        if (req.restarts == 0) {
+                set req.backend = holter;
+        } else if (req.restarts == 1) {
+                set req.backend = powell;
+        } else if (req.restarts == 2) {
+                set req.backend = holter;
+        } else {
+                set req.backend = holter;
+        }
+
+
+        if (req.request == "GET" && req.url ~ "^/search?") {
+                return(pass);
+        }
+        if (req.request == "GET" && req.url ~ "^/(squeeze|wheezy|sid|experimental|stable|testing|unstable|rc-buggy|squeezy-backports|lenny-backports|Pics)/") {
+                return(lookup);
+        }
+}
+
+sub vcl_fetch {
+        if (beresp.status != 200 && beresp.status != 403 && beresp.status != 404 && beresp.status != 301 && beresp.status != 302) {
+                return(restart);
+        }
+
+        # if i cant connect to the backend, ill set the grace period to be 600 seconds to hold onto content
+        set beresp.ttl = 600s;
+        set beresp.grace = 600s;
+
+        if (beresp.status == 404) {
+                set beresp.ttl = 0s;
+        }
+
+        if (beresp.status >= 500) {
+                set beresp.ttl = 0s;
+        }
+
+        if (req.request == "GET" && req.url ~ "^/search?") {
+                set beresp.ttl = 0s;
+        }
+
+        if (req.request == "GET" && req.url ~ "^/(squeeze|wheezy|sid|experimental|stable|testing|unstable|rc-buggy|squeezy-backports|lenny-backports|Pics)/") {
+                set beresp.ttl = 3600s;
+        }
+
+
+        set beresp.http.X-Cacheable = "YES";
+        return(deliver);
+}
+
+
+sub vcl_deliver {
+
+        set resp.http.X-Served-By = server.hostname;
+        if (obj.hits > 0) {
+                set resp.http.X-Cache = "HIT";
+                set resp.http.X-Cache-Hits = obj.hits;
+        } else {
+                set resp.http.X-Cache = "MISS";
+        }
+
+        return(deliver);
+}