A Sourcegraph service's log level is configured via the environment variable SRC_LOG_LEVEL. The valid values (from most to least verbose) are:
dbug: Debug. Output all logs. Default in cluster deployments.info: Informational.warn: Warning. Default in Docker deployments.eror: Error.crit: Critical.
A Sourcegraph service's log output format is configured via the environment variable SRC_LOG_FORMAT. The valid values are:
condensed: Optimized for human readability.json: Machine-readable JSON format.logfmt: The logfmt format.