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Mattia Eleuteri
5956b459fb
The default CNPG strategy archived a Postgres app under <namespace>-<name>, inside a destinationPath that is also keyed by namespace and name, and the driver fell back to the Cluster name when a strategy set no serverName. Deleting the app does not empty the bucket, so an app recreated under the same name archived its WALs and base backups into its predecessor's stream: both start on timeline 1, and a later restore of the old archive could pick the new cluster's base backup or WAL segments. barman-cloud refuses a non-empty archive only while .check-empty-wal-archive exists in PGDATA. CNPG removes that file as soon as ContinuousArchiving turns True, and with no plugin attached archive_command is a successful no-op, so the file is gone minutes after initdb, before the first BackupJob attaches the plugin. Suffix the default serverName with the application UID, in the strategy template and in the driver's fallback. The template guards the UID with `with`, so an object without one renders the previous name rather than "<no value>". A Cluster that already has the plugin keeps its serverName, so only clusters never backed up take the new prefix, and restores keep reading the source prefix from driverMetadata. Signed-off-by: Mattia Eleuteri <mattia@hidora.io> Assisted-by: LLM