NAME
    gcloud spanner backup-schedules update - update a Cloud Spanner backup
        schedule

SYNOPSIS
    gcloud spanner backup-schedules update
        (BACKUP_SCHEDULE : --database=DATABASE --instance=INSTANCE)
        (--cron=CRON --encryption-type=ENCRYPTION_TYPE
          --retention-duration=RETENTION_DURATION --kms-keys=[KMS_KEYS,...]
          | [--kms-key=KMS_KEY : --kms-keyring=KMS_KEYRING
          --kms-location=KMS_LOCATION --kms-project=KMS_PROJECT])
        [GCLOUD_WIDE_FLAG ...]

DESCRIPTION
    Update a Cloud Spanner backup schedule.

EXAMPLES
    To update a Cloud Spanner backup schedule, run:

        $ gcloud spanner backup-schedules update backup-schedule-id \
            --instance=instance-id --database=database-id \
            --cron="0 2 * * *" --retention-duration=2w \
            --encryption-type=GOOGLE_DEFAULT_ENCRYPTION

POSITIONAL ARGUMENTS
     Backup schedule resource - The Cloud Spanner backup schedule to create.
     The arguments in this group can be used to specify the attributes of this
     resource. (NOTE) Some attributes are not given arguments in this group but
     can be set in other ways.

     To set the project attribute:
      ◆ provide the argument backup_schedule on the command line with a fully
        specified name;
      ◆ provide the argument --project on the command line;
      ◆ set the property core/project.

     This must be specified.

       BACKUP_SCHEDULE
          ID of the backup-schedule or fully qualified identifier for the
          backup-schedule.

          To set the backup-schedule attribute:
          ▸ provide the argument backup_schedule on the command line.

          This positional argument must be specified if any of the other
          arguments in this group are specified.

       --database=DATABASE
          The Cloud Spanner database for the backup-schedule.

          To set the database attribute:
          ▸ provide the argument backup_schedule on the command line with a
            fully specified name;
          ▸ provide the argument --database on the command line.

       --instance=INSTANCE
          The Cloud Spanner instance for the backup-schedule.

          To set the instance attribute:
          ▸ provide the argument backup_schedule on the command line with a
            fully specified name;
          ▸ provide the argument --instance on the command line;
          ▸ set the property spanner/instance.

REQUIRED FLAGS
     At least one of these must be specified:

       --cron=CRON
          Textual representation of the crontab. User can customize the backup
          frequency and the backup version time using the cron expression. The
          version time must be in UTC timzeone. The backup will contain an
          externally consistent copy of the database at the version time.
          Allowed frequencies are 12 hour, 1 day, 1 week and 1 month. Examples
          of valid cron specifications: * 0 2/12 * * * : every 12 hours at (2,
          14) hours past midnight in UTC. * 0 2,14 * * * : every 12 hours at
          (2,14) hours past midnight in UTC. * 0 2 * * * : once a day at 2 past
          midnight in UTC. * 0 2 * * 0 : once a week every Sunday at 2 past
          midnight in UTC. * 0 2 8 * * : once a month on 8th day at 2 past
          midnight in UTC.

       --encryption-type=ENCRYPTION_TYPE
          The encryption type of the backup. ENCRYPTION_TYPE must be one of:

           customer-managed-encryption
              Use the provided Cloud KMS key for encryption. If this option is
              selected, kms-key must be set.
           google-default-encryption
              Use Google default encryption.
           use-database-encryption
              Use the same encryption configuration as the database.

       --retention-duration=RETENTION_DURATION
          The retention duration of a backup that must be at least 6 hours and
          at most 366 days. The backup is eligible to be automatically deleted
          once the retention period has elapsed.

       KMS key name group

       At most one of these can be specified:

         Key resource - Cloud KMS key(s) to be used to create the Cloud Spanner
         backup. This represents a Cloud resource. (NOTE) Some attributes are
         not given arguments in this group but can be set in other ways.

         To set the kms-project attribute:
          ▫ provide the argument --kms-keys on the command line with a fully
            specified name.

         To set the kms-location attribute:
          ▫ provide the argument --kms-keys on the command line with a fully
            specified name.

         To set the kms-keyring attribute:
          ▫ provide the argument --kms-keys on the command line with a fully
            specified name.

         --kms-keys=[KMS_KEYS,...]
            IDs of the keys or fully qualified identifiers for the keys.

            To set the kms-key attribute:
            ▫ provide the argument --kms-keys on the command line.

         Key resource - Cloud KMS key to be used to create the Cloud Spanner
         backup. The arguments in this group can be used to specify the
         attributes of this resource.

         --kms-key=KMS_KEY
            ID of the key or fully qualified identifier for the key.

            To set the kms-key attribute:
            ▫ provide the argument --kms-key on the command line.

            This flag argument must be specified if any of the other arguments
            in this group are specified.

         --kms-keyring=KMS_KEYRING
            KMS keyring id of the key.

            To set the kms-keyring attribute:
            ▫ provide the argument --kms-key on the command line with a fully
              specified name;
            ▫ provide the argument --kms-keyring on the command line.

         --kms-location=KMS_LOCATION
            Cloud location for the key.

            To set the kms-location attribute:
            ▫ provide the argument --kms-key on the command line with a fully
              specified name;
            ▫ provide the argument --kms-location on the command line.

         --kms-project=KMS_PROJECT
            Cloud project id for the key.

            To set the kms-project attribute:
            ▫ provide the argument --kms-key on the command line with a fully
              specified name;
            ▫ provide the argument --kms-project on the command line.

GCLOUD WIDE FLAGS
    These flags are available to all commands: --access-token-file, --account,
    --billing-project, --configuration, --flags-file, --flatten, --format,
    --help, --impersonate-service-account, --log-http, --project, --quiet,
    --trace-token, --user-output-enabled, --verbosity.

    Run $ gcloud help for details.

NOTES
    These variants are also available:

        $ gcloud alpha spanner backup-schedules update

        $ gcloud beta spanner backup-schedules update

