Be more generous with backup retention.

examples/example.restic

@@ -38,7 +38,7 @@ tag =
 keep_last =
 
 # For the last n hours/days/weeks/months/years in which a snapshot was made, keep only the last snapshot for each hour/day/week/month/year.
-# Default is to keep 7 daily backups (when "retention = yes", above).
+# When "retention = yes", above, default is to keep the last 7 backups, and 2 each for daily, weekly, monthly and yearly backups.
 keep_hourly =
 keep_daily =
 keep_weekly =

handlers/restic.in

@@ -99,10 +99,10 @@ if [[ "$retention" == "yes" ]]; then
 
    getconf keep_last    "7"
    getconf keep_hourly
-   getconf keep_daily
-   getconf keep_weekly
-   getconf keep_monthly
-   getconf keep_yearly
+   getconf keep_daily   "2"
+   getconf keep_weekly  "2"
+   getconf keep_monthly "2"
+   getconf keep_yearly  "2"
    getconf keep_tag
 
    debug "restic is configured with the following retention policy:"