# DO NOT EDIT - This file is being maintained by Chef upstream tile_cache_backend { server 127.0.0.1:80; server 127.0.0.2:80; # Add the other caches to relieve pressure if local squid failing # Balancer: round-robin <% @caches.each do |cache| -%> <% if cache[:hostname] != node[:hostname] -%> <% cache.ipaddresses(:family => :inet, :role => :external).sort.each do |address| -%> server <%= address %>:80 backup; # Server <%= cache[:hostname] %> <% end -%> <% end -%> <% end -%> keepalive 512; keepalive_requests 1024; } # Geo Map of tile caches geo $tile_cache { default 0; <% @caches.each do |cache| -%> <% cache.ipaddresses(:family => :inet, :role => :external).sort.each do |address| -%> <%= address %> 1; # <%= cache[:hostname] %> <% end -%> <% end -%> } # Rates table based on current cookie value map $cookie__osm_totp_token $limit_rate_qos { include /etc/nginx/conf.d/tile_qos_rates.map; } # Set-Cookie table based on current cookie value map $cookie__osm_totp_token $cookie_qos_token_set { include /etc/nginx/conf.d/tile_qos_cookies.map; } map $http_user_agent $approved_scraper { default 0; # Not approved '~^JOSM\/' 1; # JOSM '~^Mozilla\/5\.0\ QGIS\/' 1; # QGIS } map $http_user_agent $denied_scraper { default 0; # Not denied '' 1; # No User-Agent Set '~^Python\-urllib\/' 1; # Library Default '~^python\-requests\/' 1; # Library Default '~^node\-fetch\/' 1; # Library Default '~^R$' 1; # Library Default '~^Java\/' 1; # Library Default '~^tiles$' 1; # Library Default '~^runtastic' 1; # App 'Mozilla/4.0' 1; # Fake 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)' 1; # Fake } map $http_referer $denied_referer { default 0; # Not denied 'http://www.openstreetmap.org/' 1; # Faked 'http://www.openstreetmap.org' 1; # Faked 'http://openstreetmap.org/' 1; # Faked 'http://openstreetmap.org' 1; # Faked 'http://www.osm.org/' 1; # Faked 'http://www.osm.org' 1; # Faked 'http://osm.org/' 1; # Faked 'http://osm.org' 1; # Faked } map $http_referer $osm_referer { default ''; # False '~^https:\/\/www\.openstreetmap\.org\/' 'osm'; # True } # Limit Cache-Control header to only approved User-Agents map $osm_referer$http_user_agent $limit_http_cache_control { default ''; # Unset Header '~^osmMozilla\/5\.0\ QGIS\/' ''; # Unset Header '~^osmMozilla\/5\.0\ ' $http_cache_control; # Pass Header } # Limit Pragma header to only approved User-Agents map $osm_referer$http_user_agent $limit_http_pragma { default ''; # Unset Header '~^osmMozilla\/5\.0\ QGIS\/' ''; # Unset Header '~^osmMozilla\/5\.0\ ' $http_pragma; # Pass Header } server { listen 443 ssl deferred backlog=16384 reuseport fastopen=2048 http2 default_server; server_name localhost; proxy_buffers 8 64k; ssl_certificate /etc/ssl/certs/tile.openstreetmap.org.pem; ssl_certificate_key /etc/ssl/private/tile.openstreetmap.org.key; # 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; # Immediately 404 layers we do not support <% for i in 20..99 do %> location /<%= i %>/ { set $limit_rate 512; return 404; } <% end %> # Immediately 404 silly tile requests location = /0/0/-1.png { set $limit_rate 512; return 404; } location = /1/0/-1.png { set $limit_rate 512; return 404; } location = /1/-1/0.png { set $limit_rate 512; return 404; } location = /1/-1/1.png { set $limit_rate 512; return 404; } location = /1/-1/-1.png { set $limit_rate 512; return 404; } location = /1/-1/2.png { set $limit_rate 512; return 404; } location = /1/1/-1.png { set $limit_rate 512; return 404; } location = /1/2/-1.png { set $limit_rate 512; return 404; } location = /2/0/-1.png { set $limit_rate 512; return 404; } location = /2/-1/0.png { set $limit_rate 512; return 404; } location = /2/-1/1.png { set $limit_rate 512; return 404; } location = /2/1/-1.png { set $limit_rate 512; return 404; } location = /2/-1/2.png { set $limit_rate 512; return 404; } location = /2/-1/3.png { set $limit_rate 512; return 404; } <% for i in 0..14 do %> <% if i == 0 -%> # Default Fallback Location Handler (lowest) location / { <% elsif -%> # Dedicated zoom handler for caching location /<%= i %>/ { <% end %> # Only allow GET / HEAD / OPTIONS (CORS) requests limit_except GET HEAD OPTIONS { deny all; } proxy_pass http://tile_cache_backend; proxy_set_header X-Forwarded-For $remote_addr; proxy_http_version 1.1; proxy_set_header Connection ''; proxy_connect_timeout 10s; # Replace host header. proxy_set_header Host 'tile.openstreetmap.org'; # Do not pass cookies to backends. proxy_set_header Cookie ''; # Do not pass Accept-Encoding to backends. proxy_set_header Accept-Encoding ''; # Do not pass Accept to backends. proxy_set_header Accept ''; # Do not pass Accept-Language to backends as unused. proxy_set_header Accept-Language ''; proxy_set_header Accept-Charset ''; # Do not send origin, we allow all. proxy_set_header origin ''; # Do not pass invalid headers to backend. proxy_set_header X-Forwarded-Host ''; proxy_set_header X-Host ''; proxy_set_header Authorization ''; proxy_set_header Proxy-Authorization ''; # Drop partial requests proxy_set_header range ''; # Do not allow setting cookies from backends due to caching. proxy_ignore_headers Set-Cookie; proxy_hide_header Set-Cookie; <% if i != 0 -%> # Caching proxy_cache "proxy_cache_zone"; proxy_cache_lock on; proxy_cache_valid 200 1d; proxy_cache_valid 404 15m; # Serve stale cache on errors or if updating proxy_cache_use_stale error timeout updating http_500 http_503 http_504; # If in cache as stale, serve stale and update in background proxy_cache_background_update on; proxy_cache_min_uses 8; add_header X-Nginx-Cache-Status $upstream_cache_status; <% end -%> # Set a QoS cookie if none presented (uses nginx Map) add_header Set-Cookie $cookie_qos_token_set; <% if node[:ssl][:strict_transport_security] -%> # Ensure Strict-Transport-Security header is removed from proxied server responses proxy_hide_header Strict-Transport-Security; # Enable HSTS add_header Strict-Transport-Security "<%= node[:ssl][:strict_transport_security] %>" always; <% end -%> # QoS Traffic Rate see $limit_rate on http://nginx.org/en/docs/http/ngx_http_core_module.html set $limit_rate $limit_rate_qos; # Allow Higher Traffic Rate from Approved User-Agents which do not support cookies (uses nginx Map) if ($approved_scraper) { set $limit_rate 65536; } if ($denied_scraper) { set $limit_rate 512; return 429; } if ($denied_referer) { set $limit_rate 512; return 418; } # Strip any ?query parameters from urls set $args ''; # Allow cache purging headers only from select User-Agents (uses nginx Map) proxy_set_header Cache-Control $limit_http_cache_control; proxy_set_header Pragma $limit_http_pragma; } <% end %> }