feat(google_cloudsql_postgres): add log metrics for automated backups

[n0coast]

Description

Allows the optional creation of log based metrics for automated backups, there are 4 backup statuses: STATUS_SUCCEEDED, STATUS_ATTEMPT_FAILED, STATUS_FAILED, and STATUS_SKIPPED.
Log based metrics can be used for alerting in gcloud monitoring or elsewhere.

Example log:

{
  "protoPayload": {
    "@type": "type.googleapis.com/google.cloud.audit.AuditLog",
    "status": {
      "message": "OK"
    },
    "authenticationInfo": {},
    "requestMetadata": {
      "requestAttributes": {},
      "destinationAttributes": {}
    },
    "serviceName": "cloudsql.googleapis.com",
    "methodName": "cloudsql.instances.automatedBackup",
    "resourceName": "projects/<project_name>/instances/<primary_db_name>",
    "metadata": {
      "@type": "type.googleapis.com/speckle.AutomatedBackupEventLog",
      "windowStatus": "STATUS_SUCCEEDED",
      "windowStartTime": "<date>",
      "backupStartTime": "<date>",
      "backupCompletionTime": "<date>",
      "message": "",
      "windowEndTime": "<date>"
    }
  },
  "insertId": "<insertId>",
  "resource": {
    "type": "cloudsql_database",
    "labels": {
      "database_id": "<project_name>:<primary_db_name>",
      "region": "<location>",
      "project_id": "<project_name>"
    }
  },
  "timestamp": "<date>",
  "severity": "INFO",
  "logName": "projects/<project_name>/logs/cloudaudit.googleapis.com%2Fsystem_event",
  "receiveTimestamp": "<date>"
}

Related Tickets & Documents

• MZCLD-4213

[github-actions]

Release plan

Directory	Previous version	New version
google_cloudsql_postgres	0.10.0	0.11.0