lvm_self_backup: Option to configure user/group for status dir

This allows to give the telegraf container access to the backup status flags

roles/lvm_self_backup/defaults/main.yml

@@ -21,6 +21,11 @@
 # The directory to put the status flag in
 backup_status_directory: "/monitoring"
 
+# Status directory user & group id
+# This can be used for example to give telegraf access to the status files.
+backup_status_directory_uid: 100
+backup_status_directory_gid: 101
+
 # The LVM volumes to backup
 # Available fields:
 #  vg_name - The volume group that the volume resides in

roles/lvm_self_backup/tasks/main.yml

@@ -34,8 +34,8 @@
     path: "{{ item }}"
     state: directory
     mode: '0700'
-    owner: 'root'
-    group: 'root'
+    owner: "{{ backup_status_directory_uid }}"
+    group: "{{ backup_status_directory_gid }}"
     recurse: true
   with_items:
     - "{{ backup_status_directory }}"

roles/lvm_self_backup/templates/backup-lvm.sh

@@ -84,4 +84,6 @@ fi
 
 echo $success > {{ backup_status_directory }}/backup.status
 
+chown {{ backup_status_directory_uid }}:{{ backup_status_directory_gid }} {{ backup_status_directory }}/backup.status
+
 exit $success