tree 4479160edc13a308007f02e013bf5bc3a05aef0e
parent 988159aeda47b9ddb52134ddfeaf9a65b6b67195
author ricolin <rlin@vexxhost.com> 1668302337 +0800
committer ricolin <rlin@vexxhost.com> 1668302337 +0800

Add retention for instance

Add new metadata for instance that allow provide time format for
backup retention.

Backup will be clean base on the value of retention metadata key in
instance metadata. If not set, we will fallback to use `retention_time`
from config.