Scheduler environment variables

All variables use prefix BTU_SCHEDULER_. See Scheduler configuration for narrative setup, including which variables connectivity_mode makes optional.

Always required

Variable	Description
FULL_REFRESH_INTERNAL_SECS	Full queue refill interval, in seconds
SCHEDULER_POLLING_INTERVAL	RQ eligibility poll interval, in seconds (also the command-poll interval in webserver mode)
WEBSERVER_IP	Frappe web server host or public DNS name
WEBSERVER_PORT	Frappe web port
WEBSERVER_TOKEN	Frappe API token (token api_key:api_secret)

Required only when CONNECTIVITY_MODE=direct (the default)

Variable	Description
SQL_TYPE	postgres or mariadb
SQL_HOST	DB host
SQL_PORT	DB port
SQL_DATABASE	Site database name
SQL_USER	DB user
SQL_PASSWORD	DB password
RQ_HOST	Redis host
RQ_PORT	Redis port

Optional (defaults)

Variable	Default
CONNECTIVITY_MODE	direct (or webserver — no SQL/RQ variables needed; see Scheduler configuration)
RQ_PASSWORD	unset
WEBSERVER_HOST_HEADER	unset
LOG_LEVEL	INFO
TRACING_LEVEL	unset — legacy alias for LOG_LEVEL

Source of truth: btu_scheduler/lib/config.py in btu_scheduler_py.