Merge remote-tracking branch 'github/pull/678'

[chef.git] / cookbooks / imagery / templates / default / nginx_imagery_layer_fragment.conf.erb

diff --git a/cookbooks/imagery/templates/default/nginx_imagery_layer_fragment.conf.erb b/cookbooks/imagery/templates/default/nginx_imagery_layer_fragment.conf.erb
index 5b42fe937769fade8395c1c89f5dde588cb2b69f..c85dd87bb53653eb07b2d18e9aaadc5984f9969a 100644 (file)
--- a/cookbooks/imagery/templates/default/nginx_imagery_layer_fragment.conf.erb
+++ b/cookbooks/imagery/templates/default/nginx_imagery_layer_fragment.conf.erb
@@ -1,9 +1,40 @@
+<% require 'uri' %>
 # DO NOT EDIT - This file is being maintained by Chef
 location ~* "^/layer/<%= @layer %>/(\d+)/(\d+)/(\d+)\.(png|jpg|jpeg)$" {
+<% if @uses_tiler -%>
+  set $args "";
+  rewrite ^/layer/<%= @layer %>/(\d+)/(\d+)/(\d+)\.jpg /mosaicjson/tiles/WebMercatorQuad/$1/$2/$3@1x?url=<%= URI.encode_www_form_component(@source) %>&pixel_selection=first&tile_format=jpeg break;
+  rewrite ^/layer/<%= @layer %>/(\d+)/(\d+)/(\d+)\.jpeg /mosaicjson/tiles/WebMercatorQuad/$1/$2/$3@1x?url=<%= URI.encode_www_form_component(@source) %>&pixel_selection=first&tile_format=jpeg break;
+  rewrite ^/layer/<%= @layer %>/(\d+)/(\d+)/(\d+)\.png /mosaicjson/tiles/WebMercatorQuad/$1/$2/$3@1x?url=<%= URI.encode_www_form_component(@source) %>&pixel_selection=first&tile_format=png break;
+  proxy_pass http://<%= @site %>_tiler_backend;
+  proxy_set_header Host $host;
+  proxy_set_header Referer $http_referer;
+  proxy_set_header X-Forwarded-For $remote_addr;
+  proxy_set_header X-Forwarded-Proto https;
+  proxy_set_header X-Forwarded-SSL on;
+  proxy_http_version 1.1;
+  proxy_set_header Connection "";
+  proxy_set_header Cache-Control "";
+  proxy_set_header Pragma "";
+  proxy_redirect off;
+  proxy_cache_key "<%= @layer %><%= @revision %> $request_method $1 $2 $3";
+  proxy_cache proxy_cache_zone;
+  proxy_cache_valid 200 204 180d;
+  proxy_cache_use_stale error timeout updating http_502 http_503 http_504;
+  proxy_cache_background_update on;
+  proxy_next_upstream error timeout invalid_header http_500 http_503;
+  proxy_next_upstream_timeout 30s;
+  proxy_next_upstream_tries 3;
+  proxy_intercept_errors on;
+  proxy_ignore_headers "Cache-Control";
+  proxy_ignore_headers "Expires";
+  proxy_hide_header "Cache-Control";
+  proxy_hide_header "Expires";
+  proxy_hide_header "Access-Control-Allow-Origin";
+<% else -%>
   # Override QUERY_STRING to force mapserver query parameters
   fastcgi_param QUERY_STRING "map=/srv/imagery/mapserver/layer-<%= @layer %>.map&mode=tile&layers=<%= @layer %>&tilemode=gmap&tile=$2+$3+$1";
   fastcgi_pass "<%= @site %>_fastcgi";
-  fastcgi_buffers 8 64k;
   include fastcgi_params;
   fastcgi_param REQUEST_METHOD "GET";
   fastcgi_param HTTP_PROXY "";
@@ -16,27 +47,33 @@ location ~* "^/layer/<%= @layer %>/(\d+)/(\d+)/(\d+)\.(png|jpg|jpeg)$" {
   # Free connection to socket for other requests
   fastcgi_keep_conn off;
 
-  fastcgi_cache_lock on;
-  fastcgi_cache_lock_timeout 30s;
   fastcgi_cache_valid 200 21d;
+
+  # Serve stale cache on errors or if updating
   fastcgi_cache_use_stale error timeout updating http_500 http_503;
+  # If in cache as stale, serve stale and update in background
+  fastcgi_cache_background_update on;
+  # Enable revalidation using If-Modified-Since and If-None-Match for stale items
+  fastcgi_cache_revalidate on;
 
-  # Ignore client abort as it causes issues with the pipeline
-  fastcgi_ignore_client_abort on;
+  keepalive_requests 0;
 
   fastcgi_catch_stderr "Image handling error";
 
   fastcgi_next_upstream error timeout invalid_header http_500 http_503;
-  fastcgi_next_upstream_tries 3;
+  fastcgi_next_upstream_tries 8;
+<% end -%>
 
   # Do not GZIP tiles
   gzip off;
 
   # Add HTTP Cache-Control + Expires Headers
   expires 7d;
+  add_header Cache-Control "stale-while-revalidate=604800, stale-if-error=604800";
+  add_header x-cache-status $upstream_cache_status;
 
   # Allow CORS requests
-  add_header 'Access-Control-Allow-Origin' '*';
+  add_header 'Access-Control-Allow-Origin' '*' always;
 }
 
 <% if @root_layer -%>