1 # DO NOT EDIT - This file is being maintained by Chef
3 upstream tile_cache_backend {
8 # Add the other caches to relieve pressure if local squid failing
9 # Balancer: round-robin
10 <% @caches.each do |cache| -%>
11 <% if cache[:hostname] != node[:hostname] -%>
12 <% if node[:tilecache][:tile_siblings].include? cache[:fqdn] -%>
13 <% cache.ipaddresses(:family => :inet, :role => :external).sort.each do |address| -%>
14 server <%= address %> backup; # Server <%= cache[:hostname] %>
21 keepalive_requests 1024;
24 # Geo Map of tile caches
27 <% @caches.each do |cache| -%>
28 <% cache.ipaddresses(:family => :inet, :role => :external).sort.each do |address| -%>
29 <%= address %> 1; # <%= cache[:hostname] %>
34 # Rates table based on current cookie value
35 map $cookie__osm_totp_token $limit_rate_qos {
36 include /etc/nginx/conf.d/tile_qos_rates.map;
39 # Set-Cookie table based on current cookie value
40 map $cookie__osm_totp_token $cookie_qos_token_set {
41 include /etc/nginx/conf.d/tile_qos_cookies.map;
44 map $http_user_agent $approved_scraper {
45 default 0; # Not approved
47 '~^Mozilla\/5\.0\ QGIS\/' 1; # QGIS
50 map $http_user_agent $denied_scraper {
51 default 0; # Not denied
52 '' 1; # No User-Agent Set
53 '~^Python\-urllib\/' 1; # Library Default
54 '~^python\-requests\/' 1; # Library Default
55 '~^node\-fetch\/' 1; # Library Default
56 '~^R$' 1; # Library Default
57 '~^Java\/' 1; # Library Default
58 '~^tiles$' 1; # Library Default
59 '~^runtastic' 1; # App
60 'Mozilla/4.0' 1; # Fake
61 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)' 1; # Fake
64 map $http_referer $denied_referer {
65 default 0; # Not denied
66 'http://www.openstreetmap.org/' 1; # Faked
67 'http://www.openstreetmap.org' 1; # Faked
68 'http://openstreetmap.org/' 1; # Faked
69 'http://openstreetmap.org' 1; # Faked
70 'http://www.osm.org/' 1; # Faked
71 'http://www.osm.org' 1; # Faked
72 'http://osm.org/' 1; # Faked
73 'http://osm.org' 1; # Faked
76 map $http_referer $osm_referer {
78 '~^https:\/\/www\.openstreetmap\.org\/' 'osm'; # True
81 # Limit Cache-Control header to only approved User-Agents
82 map $http_user_agent $limit_http_cache_control {
83 default ''; # Unset Header
84 '~^Mozilla\/5\.0\ QGIS\/' ''; # Unset Header
85 '~^Mozilla\/5\.0\ ' $http_cache_control; # Pass Header
88 # Limit Pragma header to only approved User-Agents
89 map $http_user_agent $limit_http_pragma {
90 default ''; # Unset Header
91 '~^Mozilla\/5\.0\ QGIS\/' ''; # Unset Header
92 '~^Mozilla\/5\.0\ ' $http_pragma; # Pass Header
96 listen 443 ssl deferred backlog=16384 reuseport fastopen=2048 http2 default_server;
97 server_name localhost;
101 ssl_certificate /etc/ssl/certs/tile.openstreetmap.org.pem;
102 ssl_certificate_key /etc/ssl/private/tile.openstreetmap.org.key;
104 # Requests sent within early data are subject to replay attacks.
105 # See: http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_early_data
108 # Immediately 404 layers we do not support
109 <% for i in 20..99 do %>
110 location /<%= i %>/ {
116 # Immediately 404 silly tile requests
117 location = /0/0/-1.png {
121 location = /1/0/-1.png {
125 location = /1/-1/0.png {
129 location = /1/-1/1.png {
133 location = /1/-1/-1.png {
137 location = /1/-1/2.png {
141 location = /1/1/-1.png {
145 location = /1/2/-1.png {
149 location = /2/0/-1.png {
153 location = /2/-1/0.png {
157 location = /2/-1/1.png {
161 location = /2/1/-1.png {
165 location = /2/-1/2.png {
169 location = /2/-1/3.png {
174 <% for i in 0..14 do %>
176 # Default Fallback Location Handler (lowest)
179 # Dedicated zoom handler for caching
180 location /<%= i %>/ {
182 proxy_pass http://tile_cache_backend;
183 proxy_set_header X-Forwarded-For $remote_addr;
184 proxy_http_version 1.1;
185 proxy_set_header Connection '';
187 proxy_connect_timeout 10s;
189 # Replace host header.
190 proxy_set_header Host 'tile.openstreetmap.org';
191 # Do not pass cookies to backends.
192 proxy_set_header Cookie '';
193 # Do not pass Accept-Encoding to backends.
194 proxy_set_header Accept-Encoding '';
195 # Do not pass Accept to backends.
196 proxy_set_header Accept '';
197 # Do not pass Accept-Language to backends as unused.
198 proxy_set_header Accept-Language '';
199 proxy_set_header Accept-Charset '';
200 # Do not send origin, we allow all.
201 proxy_set_header origin '';
202 # Do not pass invalid headers to backend.
203 proxy_set_header X-Forwarded-Host '';
204 proxy_set_header X-Host '';
205 proxy_set_header Authorization '';
206 proxy_set_header Proxy-Authorization '';
208 # Drop partial requests
209 proxy_set_header range '';
211 # Do not allow setting cookies from backends due to caching.
212 proxy_ignore_headers Set-Cookie;
213 proxy_hide_header Set-Cookie;
217 proxy_cache "proxy_cache_zone";
219 proxy_cache_valid 200 1d;
220 proxy_cache_valid 404 15m;
221 # Serve stale cache on errors or if updating
222 proxy_cache_use_stale error timeout updating http_500 http_503 http_504;
223 # If in cache as stale, serve stale and update in background
224 proxy_cache_background_update on;
225 proxy_cache_min_uses 8;
227 add_header X-Nginx-Cache-Status $upstream_cache_status;
230 # Set a QoS cookie if none presented (uses nginx Map)
231 add_header Set-Cookie $cookie_qos_token_set;
232 <% if node[:ssl][:strict_transport_security] -%>
233 # Ensure Strict-Transport-Security header is removed from proxied server responses
234 proxy_hide_header Strict-Transport-Security;
237 add_header Strict-Transport-Security "<%= node[:ssl][:strict_transport_security] %>" always;
240 # QoS Traffic Rate see $limit_rate on http://nginx.org/en/docs/http/ngx_http_core_module.html
241 set $limit_rate $limit_rate_qos;
243 # Allow Higher Traffic Rate from Approved User-Agents which do not support cookies (uses nginx Map)
244 if ($approved_scraper) {
245 set $limit_rate 65536;
248 if ($denied_scraper) {
252 if ($denied_referer) {
257 # Only allow cache purges if from OpenStreetMap referer
259 # Allow cache purging headers only from select User-Agents (uses nginx Map)
260 proxy_set_header Cache-Control $limit_http_cache_control;
261 proxy_set_header Pragma $limit_http_pragma;
263 # nginx has no if else logic
264 if ($osm_referer != 'osm') {
265 proxy_set_header Cache-Control '';
266 proxy_set_header Pragma '';
269 # Strip any ?query parameters from urls