configs-examples/logging.yaml

logging:
    version: 1
    disable_existing_loggers: true
    formatters:
        simple:
            format: "%(asctime)s - %(levelname)s - %(message)s"
            datefmt: "%H:%M:%S"
    handlers:
        console:
            level: INFO
            class: logging.StreamHandler
            formatter: simple
            stream: "ext://sys.stdout"
        log_file:
            level: DEBUG
            class: logging.FileHandler
            formatter: simple
            filename: null
    loggers:
        cmd:     {"level": "DEBUG", "handlers": ["console", "log_file"]}
        storage: {"level": "DEBUG", "handlers": ["console", "log_file"]}
        rpc:     {"level": "DEBUG", "handlers": ["console", "log_file"]}
        cephlib: {"level": "DEBUG", "handlers": ["console", "log_file"]}
        collect: {"level": "DEBUG", "handlers": ["console", "log_file"]}
        agent:   {"level": "DEBUG", "handlers": ["console", "log_file"]}
        wally:   {"level": "DEBUG", "handlers": ["console", "log_file"]}