1 # DO NOT EDIT - This file is being maintained by Chef
3 upstream tile_cache_backend {
6 # Add the other caches to relieve pressure if local squid failing
7 # Balancer: round-robin
8 <% @caches.each do |cache| -%>
9 <% if cache[:hostname] != node[:hostname] -%>
10 <% if node[:tilecache][:tile_siblings].include? cache[:fqdn] -%>
11 <% cache.ipaddresses(:family => :inet, :role => :external).sort.each do |address| -%>
12 server <%= address %> backup; # Server <%= cache[:hostname] %>
19 keepalive_requests 1024;
22 # Geo Map of tile caches
25 <% @caches.each do |cache| -%>
26 <% cache.ipaddresses(:family => :inet, :role => :external).sort.each do |address| -%>
27 <%= address %> 1; # <%= cache[:hostname] %>
32 # Rates table based on current cookie value
33 map $cookie__osm_totp_token $limit_rate_qos {
34 include /etc/nginx/conf.d/tile_qos_rates.map;
37 # Set-Cookie table based on current cookie value
38 map $cookie__osm_totp_token $cookie_qos_token_set {
39 include /etc/nginx/conf.d/tile_qos_cookies.map;
42 map $http_user_agent $approved_scraper {
43 default 0; # Not approved
45 '~^Mozilla\/5\.0\ QGIS\/' 1; # QGIS
48 map $http_user_agent $denied_scraper {
49 default 0; # Not denied
50 '' 1; # No User-Agent Set
51 '~^Python\-urllib\/' 1; # Library Default
52 '~^python\-requests\/' 1; # Library Default
53 '~^node\-fetch\/' 1; # Library Default
54 '~^R$' 1; # Library Default
55 '~^Java\/' 1; # Library Default
56 '~^tiles$' 1; # Library Default
57 '~^runtastic' 1; # App
58 'Mozilla/4.0' 1; # Fake
59 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)' 1; # Fake
62 map $http_referer $denied_referer {
63 default 0; # Not denied
64 'http://www.openstreetmap.org/' 1; # Faked
65 'http://www.openstreetmap.org' 1; # Faked
66 'http://openstreetmap.org/' 1; # Faked
67 'http://openstreetmap.org' 1; # Faked
68 'http://www.osm.org/' 1; # Faked
69 'http://www.osm.org' 1; # Faked
70 'http://osm.org/' 1; # Faked
71 'http://osm.org' 1; # Faked
74 # Limit Cache-Control header to only approved User-Agents
75 map $http_user_agent $limit_http_cache_control {
76 default ''; # Unset Header
77 '~^Mozilla\/5\.0\ QGIS\/' ''; # Unset Header
78 '~^Mozilla\/5\.0\ ' $http_cache_control; # Pass Header
81 # Limit Pragma header to only approved User-Agents
82 map $http_user_agent $limit_http_pragma {
83 default ''; # Unset Header
84 '~^Mozilla\/5\.0\ QGIS\/' ''; # Unset Header
85 '~^Mozilla\/5\.0\ ' $http_pragma; # Pass Header
89 listen 443 ssl deferred backlog=16384 reuseport fastopen=2048 http2 default_server;
90 server_name localhost;
94 ssl_certificate /etc/ssl/certs/tile.openstreetmap.org.pem;
95 ssl_certificate_key /etc/ssl/private/tile.openstreetmap.org.key;
97 # Requests sent within early data are subject to replay attacks.
98 # See: http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_early_data
101 # Immediately 404 layers we do not support
102 <% for i in 20..99 do %>
103 location /<%= i %>/ {
109 # Immediately 404 silly tile requests
110 location = /0/0/-1.png {
114 location = /1/0/-1.png {
118 location = /1/-1/0.png {
122 location = /1/-1/1.png {
126 location = /1/-1/-1.png {
130 location = /1/-1/2.png {
134 location = /1/1/-1.png {
138 location = /1/2/-1.png {
142 location = /2/0/-1.png {
146 location = /2/-1/0.png {
150 location = /2/-1/1.png {
154 location = /2/1/-1.png {
158 location = /2/-1/2.png {
162 location = /2/-1/3.png {
167 <% for i in 0..14 do %>
169 # Default Fallback Location Handler (lowest)
172 # Dedicated zoom handler for caching
173 location /<%= i %>/ {
175 proxy_pass http://tile_cache_backend;
176 proxy_set_header X-Forwarded-For $remote_addr;
177 proxy_http_version 1.1;
178 proxy_set_header Connection '';
180 proxy_connect_timeout 5s;
182 # Preserve host header.
183 proxy_set_header Host $host;
184 # Do not pass cookies to backends.
185 proxy_set_header Cookie '';
186 # Do not pass Accept-Encoding to backends.
187 proxy_set_header Accept-Encoding '';
189 # Do not allow setting cookies from backends due to caching.
190 proxy_ignore_headers Set-Cookie;
191 proxy_hide_header Set-Cookie;
195 proxy_cache "proxy_cache_zone";
197 proxy_cache_valid 200 1d;
198 proxy_cache_valid 404 15m;
199 # Serve stale cache on errors or if updating
200 proxy_cache_use_stale error timeout updating http_500 http_503 http_504;
201 # If in cache as stale, serve stale and update in background
202 proxy_cache_background_update on;
203 proxy_cache_min_uses 8;
205 add_header X-Nginx-Cache-Status $upstream_cache_status;
208 # Set a QoS cookie if none presented (uses nginx Map)
209 add_header Set-Cookie $cookie_qos_token_set;
210 <% if node[:ssl][:strict_transport_security] -%>
211 # Ensure Strict-Transport-Security header is removed from proxied server responses
212 proxy_hide_header Strict-Transport-Security;
215 add_header Strict-Transport-Security "<%= node[:ssl][:strict_transport_security] %>" always;
218 # QoS Traffic Rate see $limit_rate on http://nginx.org/en/docs/http/ngx_http_core_module.html
219 set $limit_rate $limit_rate_qos;
221 # Allow Higher Traffic Rate from Approved User-Agents which do not support cookies (uses nginx Map)
222 if ($approved_scraper) {
223 set $limit_rate 65536;
226 if ($denied_scraper) {
230 if ($denied_referer) {
235 # Strip any ?query parameters from urls
238 # Allow cache purging headers only from select User-Agents (uses nginx Map)
239 proxy_set_header Cache-Control $limit_http_cache_control;
240 proxy_set_header Pragma $limit_http_pragma;