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85 lines
2.6 KiB
Python
85 lines
2.6 KiB
Python
#
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# This file is part of gunicorn released under the MIT license.
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# See the NOTICE for more information.
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"""
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Gunicorn configuration for HTTP/2 with gevent worker.
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This configuration demonstrates:
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- HTTP/2 protocol support with ALPN
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- Gevent async worker for high concurrency
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- SSL/TLS configuration
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- HTTP/2 specific tuning options
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"""
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import os
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import multiprocessing
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# Server socket
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bind = os.environ.get('GUNICORN_BIND', '0.0.0.0:8443')
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# Worker configuration
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worker_class = 'gevent'
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workers = int(os.environ.get('GUNICORN_WORKERS', multiprocessing.cpu_count() * 2 + 1))
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worker_connections = 1000 # Max simultaneous clients per worker
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# HTTP protocols - enable HTTP/2 with HTTP/1.1 fallback
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http_protocols = "h2,h1"
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# SSL/TLS configuration (required for HTTP/2)
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# Default paths work in Docker; override with env vars for local testing
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_default_cert = '/certs/server.crt' if os.path.exists('/certs/server.crt') else 'certs/server.crt'
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_default_key = '/certs/server.key' if os.path.exists('/certs/server.key') else 'certs/server.key'
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certfile = os.environ.get('GUNICORN_CERTFILE', _default_cert)
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keyfile = os.environ.get('GUNICORN_KEYFILE', _default_key)
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# HTTP/2 specific settings
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http2_max_concurrent_streams = 128 # Max streams per connection
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http2_initial_window_size = 262144 # 256KB initial flow control window
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http2_max_frame_size = 16384 # Default frame size (16KB)
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http2_max_header_list_size = 65536 # Max header size
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# Timeouts
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timeout = 30 # Worker timeout
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graceful_timeout = 30 # Graceful shutdown timeout
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keepalive = 5 # Keep-alive connections
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# Logging
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loglevel = os.environ.get('GUNICORN_LOG_LEVEL', 'info')
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accesslog = '-' # Log to stdout
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errorlog = '-' # Log to stderr
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access_log_format = '%(h)s %(l)s %(u)s %(t)s "%(r)s" %(s)s %(b)s "%(f)s" "%(a)s" %(L)s'
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# Process naming
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proc_name = 'gunicorn-http2-gevent'
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# Server mechanics
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daemon = False
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pidfile = None
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umask = 0
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user = None
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group = None
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tmp_upload_dir = None
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def on_starting(server):
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"""Called just before the master process is initialized."""
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server.log.info("Starting HTTP/2 server with gevent worker...")
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server.log.info(f"Workers: {workers}, Connections per worker: {worker_connections}")
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server.log.info(f"HTTP/2 max streams: {http2_max_concurrent_streams}")
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def when_ready(server):
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"""Called just after the server is started."""
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server.log.info("HTTP/2 server is ready to accept connections")
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def worker_int(worker):
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"""Called when a worker receives SIGINT or SIGQUIT."""
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worker.log.info("Worker received interrupt signal")
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def worker_abort(worker):
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"""Called when a worker receives SIGABRT."""
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worker.log.warning("Worker aborted")
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