Do not fail if the ssh key already exists.

software/backupserver/instance-pullrdiffbackup.cfg.in

@@ -72,7 +72,7 @@ directory = $${directory:backup}/$${:_buildout_section_name_}
 
 [{{ slave_reference }}-backup-private_key]
 recipe = plone.recipe.command
-stop-on-error = true
+stop-on-error = false
 command = ${dropbear-output:keygen} -t $${:type} -s 2048 -f $${:key} 
 key = $${directory:ssh}/$${:_buildout_section_name_}
 type = rsa

software/backupserver/software.cfg

@@ -234,7 +234,7 @@ mode = 0644
 [template-pullrdiffbackup]
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/instance-pullrdiffbackup.cfg.in
-md5sum = 2de3f1082b1e14610c3ad7109d158e9f
+md5sum = 9bf3a34fa41ae6fe57b183293b3ff377
 output = ${buildout:directory}/template-pullrdiffbackup.cfg
 mode = 0644