Add KEEP_LAST retention policy for backups

Add KEEP_LAST environment variable to always preserve the N most recent backups regardless of age, preventing data loss when backups haven't been created for extended periods. Defaults to 10 copies.
2026-09-01 12:09:19 +07:00
parent 819635b54d
commit 3183bf5267
5 changed files with 45 additions and 5 deletions
@@ -12,6 +12,7 @@ services:
      - DB_FILE
      - CRONTAB
      - DELETE_AFTER
+      - KEEP_LAST
      - TZ
      - MINIO_PATH
      - MINIO_ACCOUNT_ID