Charmed PostgreSQL K8s

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• create-backup

  Creates a backup to s3 storage in AWS.

  Params

  • type string

    The backup type, the default value is 'full'. Full backup is a full copy of all data. Differential backup is a copy only of changed data since the last full backup. Incremental backup is a copy only of changed data since the last backup (any type). Possible values - full, differential, incremental.

• create-replication

  Set up asynchronous replication between two clusters.

  Params

  • name string

    The name of the replication (defaults to 'default').

• force-refresh-start

  Potential of data loss and downtime

  Force refresh of first unit

  Must run with at least one of the parameters =false

  Params

  • check-compatibility boolean

    Potential of data loss and downtime

    If false, force refresh if new version of PostgreSQL and/or charm is not compatible with previous version

  • check-workload-container boolean

    Potential of data loss and downtime during and after refresh

    If false, allow refresh to PostgreSQL container version that has not been validated to work with the charm revision

  • run-pre-refresh-checks boolean

    Potential of data loss and downtime

    If false, force refresh if app is unhealthy or not ready to refresh (and unit status shows "Pre-refresh check failed")

• get-primary

  Get the unit with is the primary/leader in the replication.

• list-backups

  Lists backups in s3 storage in AWS.

• pre-refresh-check

  Check if charm is ready to refresh

• promote-to-primary

  Promotes the cluster of choice to a primary cluster. Must be ran against the leader unit when promoting a cluster or against the unit to be promoted within the cluster.

  Params

  • force boolean

    Force the promotion of a cluster when there is already a primary cluster.

  • scope string

    Whether to promote a unit or a cluster. Must be set to either unit or cluster.

• restore

  Restore a database backup using pgBackRest. S3 credentials are retrieved from a relation with the S3 integrator charm.

  Params

  • backup-id string

    A backup-id to identify the backup to restore (format = %Y-%m-%dT%H:%M:%SZ)

  • restore-to-time string

    Point-in-time-recovery target in PSQL format.

• resume-refresh

  Refresh next unit(s) (after you have manually verified that refreshed units are healthy)

  If the pause-after-unit-refresh config is set to all, this action will refresh the next unit.

  If pause-after-unit-refresh is set to first, this action will refresh all remaining units. Exception: if automatic health checks fail after a unit has refreshed, the refresh will pause.

  If pause-after-unit-refresh is set to none, this action will have no effect unless it is called with check-health-of-refreshed-units as false.

  Params

  • check-health-of-refreshed-units boolean

    Potential of data loss and downtime

    If false, force refresh (of next unit) if 1 or more refreshed units are unhealthy

    Warning: if first unit to refresh is unhealthy, consider running force-refresh-start action on that unit instead of using this parameter. If first unit to refresh is unhealthy because compatibility checks, pre-refresh checks, or workload container checks are failing, this parameter is more destructive than the force-refresh-start action.

• resume-upgrade

  Resume a rolling upgrade after asserting successful upgrade of a new revision.