shadowdaoandClaude Opus 5
e417a908f2
Base image moves from AlmaLinux 9 to 10, which forces two related changes: EPEL repo URL bumps to the el10 release RPM, and tini is replaced with dumb-init as PID 1 since tini is not packaged in EPEL 10. Both provide the signal forwarding and zombie reaping the wedged-container fix relies on. Nginx 1.26 in AlmaLinux 10 deprecates the `listen ... http2` parameter, so the server block now uses the separate `http2 on;` directive. Also fixes three issues that affected WebSocket apps (socket.io, ws): - `Connection: upgrade` was hardcoded on every proxied request, including ordinary HTTP. Now driven by a `map $http_upgrade $connection_upgrade` so only genuine upgrade requests carry it. - No explicit proxy read/send timeout meant idle WebSockets were cut at nginx's 60s default. Set to 600s, which clears any sane heartbeat without pinning connection slots (worker_connections is 512, two per client). - `large_client_header_buffers 2 1k` returned 400 for any single header line over 1KB, which session cookies and bearer tokens routinely exceed. Raised to the nginx default of 4 8k; buffers are allocated on demand, so this only costs memory for requests that need it. Verified by rendering the generated config and running it under nginx with a Node backend: WebSocket handshakes return 101 and reach the upstream 'upgrade' event, polling requests arrive with `Connection: close`, and a 3KB cookie returns 200 where the old buffer setting returned 400. README gains a WebSocket Support section covering the PM2 cluster-mode trap, the concurrency ceiling, and reconnects on memory restarts. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
65 lines
2.3 KiB
Nginx Configuration File
65 lines
2.3 KiB
Nginx Configuration File
user nginx;
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worker_processes 1; # Single worker for memory efficiency
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worker_rlimit_nofile 1024;
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error_log /var/log/nginx/error.log warn; # Less verbose logging
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pid /run/nginx.pid;
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events {
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worker_connections 512; # Reduced for memory efficiency
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use epoll;
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multi_accept on;
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}
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http {
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# Memory-optimized settings
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client_body_buffer_size 16k;
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client_header_buffer_size 1k;
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client_max_body_size 8m;
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# Buffers are allocated on demand, so the larger size only costs memory for
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# requests that actually need it. 1k rejected any single header line over
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# 1KB with a 400 -- session cookies and Authorization bearer tokens
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# routinely exceed that.
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large_client_header_buffers 4 8k;
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# Maps the Connection header sent upstream to whether the client actually
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# requested an upgrade. Used by conf.d/default.conf so WebSocket handshakes
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# (socket.io, ws) upgrade while ordinary requests keep normal semantics.
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map $http_upgrade $connection_upgrade {
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default upgrade;
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'' close;
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}
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# Real IP configuration for HAProxy
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set_real_ip_from 10.0.0.0/8; # Private network range
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set_real_ip_from 172.16.0.0/12; # Private network range
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set_real_ip_from 192.168.0.0/16; # Private network range
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set_real_ip_from 127.0.0.1; # Localhost
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real_ip_header X-Forwarded-For;
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real_ip_recursive on;
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log_format main '$remote_addr - $remote_user [$time_local] "$request" '
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'$status $body_bytes_sent "$http_referer" '
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'"$http_user_agent" "$http_x_forwarded_for"';
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access_log /var/log/nginx/access.log main buffer=16k flush=2m;
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sendfile on;
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tcp_nopush on;
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tcp_nodelay on;
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keepalive_timeout 30; # Reduced from 65
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keepalive_requests 100;
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types_hash_max_size 1024; # Reduced from 2048
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server_tokens off;
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include /etc/nginx/mime.types;
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default_type application/octet-stream;
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# Optimized gzip compression
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gzip on;
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gzip_vary on;
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gzip_min_length 1024;
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gzip_comp_level 2; # Lower compression for less CPU/memory usage
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gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;
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include /etc/nginx/conf.d/*.conf;
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} |