Make retention configurable

defaults/main.yml

@@ -30,3 +30,8 @@ borgbackup_exclude_dirs:
   - sh:/home/*/**/bower_components
 
 borgbackup_pool: "/mnt/borgpool"
+borgbackup_keep_within: 7d
+borgbackup_keep_daily: 21
+borgbackup_keep_weekly: 8
+borgbackup_keep_monthly: 6
+borgbackup_keep_yearly: 0

templates/config.yaml.j2

@@ -21,11 +21,11 @@ storage:
 
 retention:
 # Retention policy for how many backups to keep in each category.
-  keep_within: 7d
-  keep_daily: 21
-  keep_weekly: 8
-  keep_monthly: 6
-  keep_yearly: 0
+  keep_within: {{ borgbackup_keep_within }}
+  keep_daily: {{ borgbackup_keep_daily }}
+  keep_weekly: {{ borgbackup_keep_weekly }}
+  keep_monthly: {{ borgbackup_keep_monthly }}
+  keep_yearly: {{ borgbackup_keep_yearly }}
 
 consistency:
   checks: