Merged client playbook and server playbook

roles/server_native-backups-cleanup/README.md

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+# role native-backups-cleanup
+
+Cleans up old backups
+
+## Additional software
+
+It may be neccessary to install gcc seperat to use psutil
+
+```bash
+  sudo pacman -S gcc
+```
+
+## further information
+- https://stackoverflow.com/questions/48929553/get-hard-disk-size-in-python

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

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+import psutil
+import shutil
+import os
+import argparse
+
+# Validating arguments
+parser = argparse.ArgumentParser()
+parser.add_argument('--maximum-backup-size-percent', type=int, dest='maximum_backup_size_percent',required=True, choices=range(0,100), help="The directory from which the data should be encrypted.")
+parser.add_argument('--backups-folder-path',type=str,dest='backups_folder_path',required=True, help="The folder in which the backups are stored")
+args = parser.parse_args()
+
+deleted = True
+while psutil.disk_usage(args.backups_folder_path).percent > args.maximum_backup_size_percent and deleted:
+    deleted = False
+    print("%d %% of disk %s are used. Freeing space..." % (psutil.disk_usage(args.backups_folder_path).percent,args.backups_folder_path))
+    for primary_directory in os.listdir(args.backups_folder_path):
+        primary_directory = os.path.join(args.backups_folder_path, primary_directory)
+        for application_directory in os.listdir(primary_directory):
+            application_directory = os.path.join(primary_directory, application_directory)
+            versions_directory = os.path.join(application_directory, "versions/")
+            versions = os.listdir(versions_directory)
+            versions.sort(reverse=False)
+            if len(versions) >= 1:
+                delete_diff = versions_directory + versions[0]
+                print("Deleting %s..." % (delete_diff))
+                shutil.rmtree(delete_diff)
+                deleted = True
+if not deleted:
+    print("All versions had been deleted!")
+print("Cleaning up finished: %d %% of disk %s are used." % (psutil.disk_usage(args.backups_folder_path).percent,args.backups_folder_path))

roles/server_native-backups-cleanup/handlers/main.yml

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+- name: "reload backups-cleanup.service"
+  systemd:
+    name: backups-cleanup.service
+    state: reloaded
+    enabled: yes
+    daemon_reload: yes
+- name: "restart backups-cleanup.timer"
+  systemd:
+    name: backups-cleanup.timer
+    state: restarted
+    enabled: yes
+    daemon_reload: yes

roles/server_native-backups-cleanup/meta/main.yml

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+dependencies:
+  - native-python-pip
+  - native-systemd-email

roles/server_native-backups-cleanup/tasks/main.yml

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+- name: install psutil
+  pip:
+    name: psutil
+
+- name: "create {{docker_backups_cleanup}}"
+  file:
+    path: "{{docker_backups_cleanup}}"
+    state: directory
+    mode: 0755
+
+- name: create backups-cleanup.py
+  copy: 
+    src:  "backups-cleanup.py"
+    dest: "{{docker_backups_cleanup}}backups-cleanup.py"
+
+- name: create backups-cleanup.service
+  template: 
+    src:  "backups-cleanup.service.j2"
+    dest: "/etc/systemd/system/backups-cleanup.service"
+  notify: reload backups-cleanup.service
+
+- name: create backups-cleanup.timer
+  template:
+    src:  "backups-cleanup.timer.j2"
+    dest: "/etc/systemd/system/backups-cleanup.timer"
+  notify: restart backups-cleanup.timer

roles/server_native-backups-cleanup/templates/backups-cleanup.service.j2

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+[Unit]
+Description=delete old backups
+OnFailure=systemd-email@%n.service
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/python {{docker_backups_cleanup}}/backups-cleanup.py --backups-folder-path {{backups_folder_path}} --maximum-backup-size-percent {{size_percent_maximum_backup}}

roles/server_native-backups-cleanup/templates/backups-cleanup.timer.j2

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+[Unit]
+Description=starts backups-cleanup.service
+
+[Timer]
+OnCalendar={{on_calendar_backups_cleanup}}
+RandomizedDelaySec={{randomized_delay_sec}}
+Persistent=true
+
+[Install]
+WantedBy=timers.target

roles/server_native-backups-cleanup/vars/main.yml

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+docker_backups_cleanup: "/home/administrator/scripts/backups-cleanup/"