Implemented free disc space command

group_vars/all

@@ -19,3 +19,4 @@ on_calendar_deploy_mailu_certificates:        "*-*-* 12,00:50:00"
 # Space Variables
 size_percent_maximum_backup:                  75
 size_percent_disc_space_warning:              85
+size_percent_free_disc_space:                 90

roles/native-free-disc-space/README.md

@@ -0,0 +1,4 @@
+# free-disc-space
+Frees disc space
+## More information
+- https://askubuntu.com/questions/380238/how-to-clean-tmp

roles/native-free-disc-space/handlers/main.yml

@@ -0,0 +1,12 @@
+- name: "reload free-disc-space.service"
+  systemd:
+    name: free-disc-space.service
+    state: reloaded
+    enabled: yes
+    daemon_reload: yes
+- name: "restart free-disc-space.timer"
+  systemd:
+    name: free-disc-space.timer
+    state: restarted
+    enabled: yes
+    daemon_reload: yes

roles/native-free-disc-space/meta/main.yml

@@ -0,0 +1,2 @@
+dependencies:
+  - native-systemd-email

roles/native-free-disc-space/tasks/main.yml

@@ -0,0 +1,22 @@
+- name: "create {{free_disc_space_folder}"
+  file:
+    path: "{{free_disc_space_folder}"
+    state: directory
+    mode: 0755
+
+- name: create free-disc-space.sh
+  template:
+    src: free-disc-space.sh.j2
+    dest: "{{free_disc_space_folder}free-disc-space.sh"
+
+- name: create free-disc-space.service
+  template: 
+    src: free-disc-space.service.j2
+    dest: /etc/systemd/system/free-disc-space.service
+  notify: reload free-disc-space.service
+
+- name: create free-disc-space.timer
+  template:
+    src: free-disc-space.timer.j2
+    dest: /etc/systemd/system/free-disc-space.timer
+  notify: restart free-disc-space.timer

roles/native-free-disc-space/templates/free-disc-space.service.j2

@@ -0,0 +1,7 @@
+[Unit]
+Description=freeing disc space
+OnFailure=systemd-email@%n.service
+
+[Service]
+Type=oneshot
+ExecStart=/bin/bash {{free_disc_space_folder}}free-disc-space.sh {{size_percent_free_disc_space}}

roles/native-free-disc-space/templates/free-disc-space.sh.j2

@@ -0,0 +1,52 @@
+#!/bin/sh
+# @param $1 mimimum free disc space
+# @param $2 --force to for execution indepentend on how much disc space is free
+
+execute_free_disc_space=0
+minimum_percent_free_disc_space="$1"
+force_freeing=false
+echo "Checking free disc space..."
+df
+if [ $# -gt 0 ] && [ "$2" == "--force" ]; then
+  echo "Forcing disc space freeing."
+  force_freeing=true 
+fi 
+for disc_use_percent in $(df --output=pcent | sed 1d)
+do
+    disc_use_percent_number=$(echo "$disc_use_percent" | sed "s/%//")
+    if [ "$disc_use_percent_number" -gt "$minimum_percent_free_disc_space" ]; then
+      echo "WARNING: $disc_use_percent_number exceeds the limit of {{size_percent_disc_space_warning}}%."
+      execute_free_disc_space+=1;
+    fi
+done
+if [ "$disc_use_percent_number" -gt "$minimum_percent_free_disc_space" ] || [ "$force_freeing" = true ]; then
+  echo "cleaning up /tmp" &&
+  find /tmp -type f -atime +10 -delete || exit 1
+  
+  {% if backups_folder_path is defined and size_percent_maximum_backup is defined %}
+  echo "cleaning up backups" &&
+  python /home/administrator/scripts/backups-cleanup/backups-cleanup.py --backups-folder-path {{backups_folder_path}} --maximum-backup-size-percent {{size_percent_maximum_backup}} || exit 2
+  {% endif %}
+
+  if pacman -Qs $package > /dev/null ; then
+    echo "cleaning up docker" &&
+    docker system prune -f || exit 3
+
+    nextcloud_application_container="nextcloud-application-1"
+    if [ "$(docker ps -a -q -f name=$nextcloud_application_container)" ] ; then
+      docker exec -it -u www-data $nextcloud_application_container /var/www/html/occ files:cleanup || exit 4
+      docker exec -it -u www-data $nextcloud_application_container /var/www/html/occ trashbin:cleanup --all-users || exit 5
+      docker exec -it -u www-data $nextcloud_application_container /var/www/html/occ versions:cleanup || exit 6
+    fi
+
+  fi
+
+  echo "cleaning pacman cache" &&
+  yes | pacman -Sc || exit 7
+
+  echo "cleanup finished."
+elif
+  echo "Sufficiend disc space available."
+  echo "To force the freeing of disc space pass the parameter --force."
+fi
+exit 0

roles/native-free-disc-space/templates/free-disc-space.timer.j2

@@ -0,0 +1,10 @@
+[Unit]
+Description=starts free-disc-space.service
+
+[Timer]
+OnCalendar={{on_calendar_disc_space_check}}
+RandomizedDelaySec={{randomized_delay_sec}}
+Persistent=true
+
+[Install]
+WantedBy=timers.target

roles/native-free-disc-space/vars/main.yml

@@ -0,0 +1 @@
+free_disc_space_folder: "/home/administrator/scripts/free-disc-space/"