A tool written in bash automating snapshot creation and deletion for gcp

Can define multiple backup 'tiers' based on disk name regexp (+default tier) with different backup settings Creates the backup if the oldest backup is older than set interval

• disk name regexp (--regexp)
• backup interval (--interval)
• pruning periods (--pruning)

Retention (pruning) inspired by https://burp.grke.org/docs/retention.html

Uses only the default tier (no regexp parameter). Sets the backup once a day and keeps 7 days history

Same as above but also defines a second backup tier with daily interval which keeps 7 daily backups 4 weekly backups and 4 monthly backups. See the burp retention description for the algorithm details