Improve the IPA backup process

Fixes: https://pagure.io/fedora-infrastructure/issue/9916

Signed-off-by: Aurélien Bompard <aurelien@bompard.org>

roles/ipa/server/files/data-only-backup

@@ -1,2 +0,0 @@
-# Run data only backups daily
-0 20 * * * root /usr/sbin/ipa-backup --data --online --quiet

roles/ipa/server/files/data-only-backup.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+# Run data only backups daily and only keep a certain number of old backups.
+
+KEEP=14
+
+ls -1d /var/lib/ipa/backup/ipa-data-* | head -n -${KEEP} | xargs rm -rf
+/usr/sbin/ipa-backup --data --online --quiet

roles/ipa/server/tasks/main.yml

@@ -642,8 +642,10 @@
 
 - name: Set cron for daily data only backups
   copy:
-    src: data-only-backup
-    dest: "/etc/cron.d/data-only-backup"
+    src: data-only-backup.sh
+    dest: "/etc/cron.daily/data-only-backup.sh"
+    mode: 0755
+
 
 - name: Ensure python dep is present
   pip: