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PasteScript depends on pkg_resources (from setuptools), which is no longer bundled in modern Python, causing ModuleNotFoundError when running paster serve. Replace with gunicorn, a well-maintained WSGI server that supports the same features (HTTP serving, SSL, daemon mode). - Add pulsar/scripts/serve.py: gunicorn-based launcher with --daemon, --stop-daemon, --pid, and SSL support - Add pulsar-serve console_scripts entry point - Change web extra from Paste/PasteScript to gunicorn - Remove PasteDeploy from requirements.txt and Dockerfile - Update scripts/pulsar to default to gunicorn mode (with paster backward compat that prints deprecation warning) - Update scripts/pulsar.bat and run.bat to use pulsar-serve - Update pulsar-config template and defaults - Remove Paste directives from server.ini.sample and config/server.ini - Update documentation and install tests
Drop _generate_ssl_cert and the ssl_pem=* magic value. This was a Paste-era convenience that added a pyOpenSSL dependency for little benefit — users can generate their own certificates.
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nsoranzo
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Feb 27, 2026
gunicorn's BaseApplication does not implement daemon mode (only the Application subclass does), so setting daemon=True was silently ignored and run() blocked forever. Fix by implementing a standard double-fork daemonize before starting gunicorn in foreground mode. Also increase worker timeout to 300s for slow app initialization, and set OBJC_DISABLE_INITIALIZE_FORK_SAFETY at module level for macOS compatibility.
Pulsar sends job parameters (command_line, dependencies_description, etc.) as long query strings that exceed gunicorn's default 8190-byte limit_request_line, causing 400 Bad Request errors. Set both limit_request_line and limit_request_field_size to 0 (unlimited) to match the old Paste server behavior.
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PasteScript depends on pkg_resources (from setuptools), which is no longer bundled in modern Python, causing ModuleNotFoundError when running paster serve. Replace with gunicorn, a well-maintained WSGI server that supports the same features (HTTP serving, SSL, daemon mode).