server { listen 3000; server_name _; client_max_body_size 200m; # Docker internal DNS resolver — forces nginx to re-resolve service names # at runtime instead of caching IPs at startup (fixes 502 after container restart) resolver 127.0.0.11 valid=10s; location /api/v1/ws { set $backend_api "http://api:8000"; proxy_pass $backend_api; proxy_http_version 1.1; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; proxy_read_timeout 3600s; proxy_send_timeout 3600s; } location /api/ { set $backend_api "http://api:8000"; proxy_pass $backend_api; proxy_http_version 1.1; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; proxy_read_timeout 3600s; proxy_send_timeout 3600s; } location / { set $backend_web "http://web:3000"; proxy_pass $backend_web; proxy_http_version 1.1; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; proxy_read_timeout 3600s; proxy_send_timeout 3600s; } }