imagery: extend tile expiry

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 97f411a181ba799b5b41635260ff3e2040ed8718..adc2d23c0123ff3e9e1104d784450ff1b4a633f7 100644 (file)
--- a/cookbooks/imagery/templates/default/nginx_imagery_layer_fragment.conf.erb
+++ b/cookbooks/imagery/templates/default/nginx_imagery_layer_fragment.conf.erb
@@ -66,8 +66,8 @@ location ~* "^/layer/<%= @layer %>/(\d+)/(\d+)/(\d+)\.(jpg|jpeg|png|webp)$" {
   gzip off;
 
   # Add HTTP Cache-Control + Expires Headers
-  expires 7d;
-  add_header Cache-Control "stale-while-revalidate=604800, stale-if-error=604800";
+  expires 31d;
+  add_header Cache-Control "stale-while-revalidate=2678400, stale-if-error=2678400";
   add_header x-cache-status $upstream_cache_status;
 
   # Allow CORS requests