AI Assistant
c82e234d6c
- Remove Accept-Encoding stripping — Martin gzip passes through to client (was sending uncompressed tiles, wasting bandwidth and cache space) - Increase cache TTL from 1h to 7d (tiles change only on weekly sync) - Increase inactive eviction from 24h to 7d - Add Cache-Control header for browser caching (24h + stale-while-revalidate 7d) - 204 (empty tiles) cached 1h instead of 1m (they don't change either) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
74 lines
2.2 KiB
Plaintext
74 lines
2.2 KiB
Plaintext
# nginx tile cache for Martin vector tile server
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# Proxy-cache layer: 10-100x faster on repeat requests, zero PostGIS load for cached tiles
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proxy_cache_path /var/cache/nginx/tiles
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levels=1:2
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keys_zone=tiles:64m
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max_size=2g
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inactive=7d
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use_temp_path=off;
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server {
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listen 80;
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server_name _;
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# Health check
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location = /health {
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access_log off;
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return 200 "ok\n";
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add_header Content-Type text/plain;
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}
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# Martin catalog endpoint (no cache)
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location = /catalog {
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proxy_pass http://martin:3000/catalog;
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proxy_set_header Host $host;
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}
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# Tile requests — cache aggressively
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location / {
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proxy_pass http://martin:3000;
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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# Cache config — tiles change only on sync (weekly), long TTL is safe
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proxy_cache tiles;
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proxy_cache_key "$request_uri";
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proxy_cache_valid 200 7d;
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proxy_cache_valid 204 1h;
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proxy_cache_valid 404 1m;
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proxy_cache_use_stale error timeout updating http_500 http_502 http_503 http_504;
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proxy_cache_lock on;
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proxy_cache_lock_timeout 5s;
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# Browser caching — tiles are immutable between syncs
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add_header Cache-Control "public, max-age=86400, stale-while-revalidate=604800" always;
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# Pass cache status header (useful for debugging)
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add_header X-Cache-Status $upstream_cache_status always;
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# CORS headers for tile requests
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add_header Access-Control-Allow-Origin "*" always;
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add_header Access-Control-Allow-Methods "GET, HEAD, OPTIONS" always;
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add_header Access-Control-Allow-Headers "Range, If-None-Match, Accept-Encoding" always;
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add_header Access-Control-Expose-Headers "Content-Range, Content-Length, ETag, X-Cache-Status" always;
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# Handle preflight
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if ($request_method = OPTIONS) {
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add_header Access-Control-Allow-Origin "*";
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add_header Access-Control-Allow-Methods "GET, HEAD, OPTIONS";
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add_header Access-Control-Max-Age 86400;
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add_header Content-Length 0;
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return 204;
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}
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# Let Martin gzip natively — pass compressed response through to client and cache
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gzip off;
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# Timeouts (Martin can be slow on low-zoom tiles)
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proxy_connect_timeout 10s;
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proxy_read_timeout 120s;
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proxy_send_timeout 30s;
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}
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}
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