Added disc-space-checker

group_vars/all

@@ -3,8 +3,13 @@
 
 on_calendar_btrfs_health_check:               "*-*-* 00:00:00"
 on_calendar_journalctl_health_check:          "*-*-* 00:00:00"
+on_calendar_disc_space_check:                 "*-*-* 06,12,18,00:00:00"
 on_calendar_docker_health_check:              "*-*-* 09,10,11,12,13,14,15,16,17,18,19,20,21,22,23,00,01,02:00:00"
 on_calendar_backups_cleanup:                  "*-*-* 06,12,18,00:30:00"
 on_calendar_docker_volume_backup:             "*-*-* 03:30:00"
 on_calendar_docker_compose_restart_unhealthy: "*-*-* 09,10,11,12,13,14,15,16,17,18,19,20,21,22,23,00,01:30:00"
-on_calendar_pull_primary_backups:             "*-*-* 21:30:00"
+on_calendar_pull_primary_backups:             "*-*-* 21:30:00"
+
+# Space Variables
+size_percent_maximum_backup:                  75
+size_percent_disc_space_warning:              85

playbook.yml

@@ -6,6 +6,7 @@
     - system-security
     - system-update
     - native-journalctl
+    - native-disc-space-check
     #- native-hostname
 - name: setup btrfs health check
   hosts: btrfs_health_check_hosts

roles/native-backups-cleanup/templates/backups-cleanup.py.j2

@@ -5,7 +5,7 @@ import os
 backup_disk_path = "{{backup_disk_path}}"
 backups_folder_path = os.path.join(backup_disk_path, "Backups/")
 deleted = True
-while psutil.disk_usage(backup_disk_path).percent > int({{backup_space_percent}}) and deleted:
+while psutil.disk_usage(backup_disk_path).percent > int({{size_percent_maximum_backup}}) 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):

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

@@ -0,0 +1,2 @@
+# disc-space-check
+Checks if enough disc space is free

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

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

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

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

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

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

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

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

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

@@ -0,0 +1,13 @@
+#!/bin/sh
+errors=0
+echo "checking disc space use..."
+df
+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 "{{size_percent_disc_space_warning}}" ]; then
+      echo "WARNING: $disc_use_percent_number exceeds the limit of {{size_percent_disc_space_warning}}%."
+      errors+=1;
+    fi
+done
+exit $errors;

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

@@ -0,0 +1,8 @@
+[Unit]
+Description=starts disc-space-check.service
+
+[Timer]
+OnCalendar={{on_calendar_disc_space_check}}
+
+[Install]
+WantedBy=timers.target

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

@@ -0,0 +1 @@
+disc_space_check_folder: "/home/administrator/scripts/disc-space-check/"