init

openstreetmap/README.md

@@ -0,0 +1,6 @@
+
+
+Vcl script for openstreetmap.
+
+The purpose is to cache all tiles for a long time, so openstreetmap servers doesn't get overloaded
+

openstreetmap/openstreetmap4.vcl

@@ -0,0 +1,78 @@
+vcl 4.0;
+
+backend default {
+  .host = "127.0.0.1";
+  .port = "80";
+}
+
+
+backend a_tile {
+  .host = "a.tile.openstreetmap.org";
+  .port = "80";
+}
+
+backend b_tile {
+  .host = "b.tile.openstreetmap.org";
+  .port = "80";
+}
+
+backend c_tile {
+  .host = "c.tile.openstreetmap.org";
+  .port = "80";
+}
+
+sub vcl_recv {
+
+  if (req.http.host ~ "^a.tile") {
+    set req.backend_hint = a_tile;
+  } else if (req.http.host ~ "^b.tile") {
+    set req.backend_hint = b_tile;
+  } else if (req.http.host ~ "^c.tile") {
+    set req.backend_hint = c_tile;
+  } else if (req.http.host ~ "^a.map") {
+    set req.backend_hint = a_tile;
+  } else if (req.http.host ~ "^b.map") {
+    set req.backend_hint = b_tile;
+  } else if (req.http.host ~ "^c.map") {
+    set req.backend_hint = c_tile;
+  }
+
+  unset req.http.cookie;
+
+  // Cache everything
+  if (req.method == "GET") {
+    return (hash);
+  }
+
+
+}
+
+sub vcl_backend_response {
+
+  // Cache tiles for 3 weeks
+  set beresp.ttl = 3w;
+
+  // Remove all cookies
+  unset beresp.http.set-cookie;
+  unset beresp.http.cookie;
+
+}
+
+sub vcl_deliver {
+
+
+  if (obj.hits > 0) {
+    set resp.http.X-Cache_v = "HIT";
+  } else {
+    set resp.http.X-Cache_v = "MISS";
+  }
+}
+
+sub vcl_hash {
+
+  // Cache using only url as a hash.  
+  // This means if a.tile/1/1/1/tile.png is access, b.tile/1/1/1/tile.png will also be fetch from cache
+  hash_data(req.url);
+  return (lookup);
+}
+