This section describes the components which are logging either to a file or stdout, how to configure them and what their defaults are.
The exposed CRD options can be seen in the crd yaml.
Additionally, more information regarding configuring systemLog can be found in the official documentation of systemLog].
spec.agent.systemLog.destination configures the logging destination of the mongod process.
By default, MongoDB sends all log output to standard output.
spec.agent.logFile can be used to configure the output file of the mongoDB agent logging.
The agent will log to standard output with the following setting: /dev/stdout.
By default, the MongoDB agent logs to /var/log/mongodb-mms-automation/automation-agent.log
The readinessProbe can be configured via Environment variables. Below is a table with each environment variable, its explanation and its default value.
| Environment Variable | Explanation | Default Value |
|---|---|---|
| READINESS_PROBE_LOGGER_BACKUPS | maximum number of old log files to retain | 5 |
| READINESS_PROBE_LOGGER_MAX_SIZE | maximum size in megabytes | 5 |
| READINESS_PROBE_LOGGER_MAX_AGE | maximum number of days to retain old log files | none |
| READINESS_PROBE_LOGGER_COMPRESS | if the rotated log files should be compressed | false |
| MDB_WITH_AGENT_FILE_LOGGING | whether we should also log to stdout (which shows in kubectl describe) | true |
| LOG_FILE_PATH | path of the logfile of the readinessProbe. | /var/log/mongodb-mms-automation/readiness.log |