ara_api role: Default gunicorn worker count based on CPU cores
The recommended default formula as per gunicorn docs is: (2 x $num_cores) + 1 Change-Id: I37ac2051f5b17fdce283e486dfcd5c68d9eacfd0
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@ -83,6 +83,10 @@ ara_api_wsgi_server: null
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# "ara_api_cors_origin_whitelist".
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ara_api_wsgi_bind: "127.0.0.1:8000"
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# Amount of worker processes for the wsgi server
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# Recommended default formula by gunicorn: https://docs.gunicorn.org/en/stable/design.html#how-many-workers
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ara_api_wsgi_workers: "{{ ansible_processor_count * ansible_processor_cores * ansible_processor_threads_per_core * 2 + 1 }}"
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# When using a frontend server, the domain or address it will be listening on
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ara_api_fqdn: "{{ ansible_default_ipv4['address'] | default(ansible_default_ipv6['address']) }}"
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@ -8,9 +8,9 @@ RuntimeDirectory=ara-api
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WorkingDirectory={{ ara_api_root_dir }}
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Environment=ARA_SETTINGS={{ ara_api_settings }}
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{% if ara_api_venv %}
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ExecStart={{ ara_api_venv_path }}/bin/gunicorn --workers=4 --bind {{ ara_api_wsgi_bind }} {{ _ara_api_wsgi_application | default('ara.server.wsgi') }}
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ExecStart={{ ara_api_venv_path }}/bin/gunicorn --workers={{ ara_api_wsgi_workers }} --bind {{ ara_api_wsgi_bind }} {{ _ara_api_wsgi_application | default('ara.server.wsgi') }}
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{% else %}
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ExecStart=gunicorn --workers=4 --bind {{ ara_api_wsgi_bind }} {{ _ara_api_wsgi_application | default('ara.server.wsgi') }}
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ExecStart=gunicorn --workers={{ ara_api_wsgi_workers }} --bind {{ ara_api_wsgi_bind }} {{ _ara_api_wsgi_application | default('ara.server.wsgi') }}
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{% endif %}
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ExecReload=/bin/kill -s HUP $MAINPID
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ExecStop=/bin/kill -s TERM $MAINPID
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