Renamed health services

roles/health-btrfs/README.md

@@ -0,0 +1,8 @@
+# health-btrfs
+
+Sends a health report
+
+## see
+- https://superuser.com/questions/789303/how-to-monitor-btrfs-filesystem-raid-for-errors
+- https://unix.stackexchange.com/questions/193619/list-all-btrfs-filesystems-and-subvolumes-in-shell
+- https://www.freedesktop.org/software/systemd/man/systemd.unit.html

roles/health-btrfs/files/health-btrfs.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+exit_code=0
+for path in $(btrfs filesystem show | awk '/ path /{print $NF}')
+do
+  echo "Checking health for $path..."
+  result=$(btrfs device stats $path)
+  echo "$result"
+  regex='\.(.*)_errs(\s*)[1-9]'
+  [[ "$result" =~ $regex ]] && echo "Errors found!" && exit_code=1;
+done
+exit $exit_code

roles/health-btrfs/handlers/main.yml

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

roles/health-btrfs/meta/main.yml

@@ -0,0 +1,2 @@
+dependencies:
+  - systemd_notifier

roles/health-btrfs/tasks/main.yml

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

roles/health-btrfs/templates/health-btrfs.service.j2

@@ -0,0 +1,7 @@
+[Unit]
+Description=Check btrfs status
+OnFailure=systemd-notifier@%n.service
+
+[Service]
+Type=oneshot
+ExecStart=/bin/bash {{docker_btrfs_health_check_folder}}health-btrfs.sh

roles/health-btrfs/templates/health-btrfs.timer.j2

@@ -0,0 +1,10 @@
+[Unit]
+Description=starts health-btrfs.service
+
+[Timer]
+OnCalendar={{on_calendar_btrfs_health_check}}
+RandomizedDelaySec={{randomized_delay_sec}}
+Persistent=false
+
+[Install]
+WantedBy=timers.target

roles/health-btrfs/vars/main.yml

@@ -0,0 +1 @@
+docker_btrfs_health_check_folder: "{{path_administrator_scripts}}health-btrfs/"