imagery: add additional upstream to allow backend retry

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

diff --git a/cookbooks/imagery/templates/default/nginx_imagery.conf.erb b/cookbooks/imagery/templates/default/nginx_imagery.conf.erb
index b0fd86910d9f12e6f4b9c369ae64386e8b49f7ce..42ae9ac014b3a10b609adec40e0f1504fdb8e0cb 100644 (file)
--- a/cookbooks/imagery/templates/default/nginx_imagery.conf.erb
+++ b/cookbooks/imagery/templates/default/nginx_imagery.conf.erb
@@ -1,29 +1,44 @@
 server {
+    listen 80;
     listen [::]:80;
-    listen *:80;
     server_name <%= @name %> a.<%= @name %> b.<%= @name %> c.<%= @name %><% @aliases.each do |alias_name| %> <%= alias_name %> a.<%= alias_name %> b.<%= alias_name %> c.<%= alias_name %><%- end -%>;
 
     rewrite ^/\.well-known/acme-challenge/(.*)$ http://acme.openstreetmap.org/.well-known/acme-challenge/$1 permanent;
     return 301 https://$host$request_uri;
 }
 
+<% if @uses_tiler -%>
+upstream <%= @name %>_tiler_backend {
+    server unix:/srv/imagery/sockets/titiler.sock max_fails=0;
+    server unix:/srv/./imagery/sockets/titiler.sock max_fails=0;
+}
+<% else -%>
+upstream <%= @name %>_fastcgi {
+    server "unix:/var/run/mapserver-fastcgi/layer-<%= @name %>.socket" max_fails=0;
+
+    # Use default round-robin to distribute requests, rather than pick "fast" but maybe faulty.
+    # Do not use keepalive
+}
+<% end -%>
+
 server {
-    listen [::]:443 ssl;
-    listen *:443 ssl;
+    listen 443 ssl http2;
+    listen [::]:443 ssl http2;
     server_name <%= @name %> a.<%= @name %> b.<%= @name %> c.<%= @name %><% @aliases.each do |alias_name| %> <%= alias_name %> a.<%= alias_name %> b.<%= alias_name %> c.<%= alias_name %><%- end -%>;
 
+    http2_max_concurrent_streams 512;
+    keepalive_timeout 30s;
+
     ssl_certificate /etc/ssl/certs/<%= @name %>.pem;
     ssl_certificate_key /etc/ssl/private/<%= @name %>.key;
+<% if node[:ssl][:strict_transport_security] -%>
+
+    add_header Strict-Transport-Security "<%= node[:ssl][:strict_transport_security] %>" always;
+<% end -%>
 
-    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
-    ssl_ciphers <%= node[:ssl][:ciphers] -%>;
-    ssl_prefer_server_ciphers on;
-    ssl_session_cache shared:SSL:50m;
-    ssl_session_timeout 30m;
-    ssl_stapling on;
-    ssl_dhparam /etc/ssl/certs/dhparam.pem;
-    resolver <%= @resolvers.join(" ") %>;
-    resolver_timeout 5s;
+    # Requests sent within early data are subject to replay attacks.
+    # See: http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_early_data
+    ssl_early_data on;
 
     root "/srv/<%= @name %>";
 
@@ -35,9 +50,6 @@ server {
     gzip_comp_level 9;
     gzip_vary on;
 
-    sendfile   on;
-    tcp_nopush on;
-
     # Include site imagery layers
     include /srv/imagery/nginx/<%= @name %>/layer-*.conf;
 }