optimized backups-cleanup

roles/native-backups-cleanup/files/backups-cleanup.py

@@ -1,25 +0,0 @@
-# @see https://stackoverflow.com/questions/48929553/get-hard-disk-size-in-python
-import psutil
-import shutil
-import os
-backup_disk_path = "/media/encrypteddrive-sda/"
-backups_folder_path = os.path.join(backup_disk_path, "Backups/")
-deleted = True
-while psutil.disk_usage(backup_disk_path).percent > 50 and deleted:
-    deleted = False
-    print("%d %% of disk %s are used. Freeing space..." % (psutil.disk_usage(backup_disk_path).percent,backup_disk_path))
-    for primary_directory in os.listdir(backups_folder_path):
-        primary_directory = os.path.join(backups_folder_path, primary_directory)
-        for application_directory in os.listdir(primary_directory):
-            application_directory = os.path.join(primary_directory, application_directory)
-            diffs_directory = os.path.join(application_directory, "diffs/")
-            diffs = os.listdir(diffs_directory)
-            diffs.sort(reverse=False)
-            if len(diffs) >= 1:
-                delete_diff = diffs_directory + diffs[0]
-                print("Deleting %s..." % (delete_diff))
-                shutil.rmtree(delete_diff)
-                deleted = True
-if not deleted:
-    print("All diffs had been deleted!")
-print("Cleaning up finished: %d %% of disk %s are used." % (psutil.disk_usage(backup_disk_path).percent,backup_disk_path))

roles/native-backups-cleanup/files/backups-cleanup.service

@@ -0,0 +1,7 @@
+[Unit]
+Description=delete old backups
+OnFailure=systemd-email@%n.service
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/python /usr/local/bin/backups-cleanup.py

roles/native-backups-cleanup/files/backups-cleanup.timer

@@ -0,0 +1,9 @@
+[Unit]
+Description=starts backups-cleanup.service
+
+[Timer]
+OnCalendar=19:00
+RandomizedDelaySec=1h
+
+[Install]
+WantedBy=timers.target