KVM: new parameter: number of resiliency backups.

software/kvm/common.cfg

@@ -100,7 +100,7 @@ on-update = true
 recipe = hexagonit.recipe.download
 url = ${:_profile_base_location_}/instance-kvm-resilient.cfg.jinja2
 mode = 644
-md5sum = a07c96b53fe9145278cd64a3b27a459a
+md5sum = 43f2eca698f25f72481f89d82403b991
 download-only = true
 on-update = true
 

software/kvm/instance-kvm-resilient-input-schema.json

@@ -34,6 +34,12 @@
                 "description": "Remove all the backups in PBS that are older than specified value. It should be rdiff-backup-compatible.",
                 "type": "string",
                 "default": "3B"
+            },
+            "resiliency-backup-amount": {
+                "title": "Amount of backup(s) to create",
+                "description": "Amount of backup(s) to create. Each backup consists of a Pull Backup Server and a clone.",
+                "type": "integer",
+                "default": 2
             }
         }
     }

software/kvm/instance-kvm-resilient.cfg.jinja2

@@ -3,6 +3,8 @@
 {% import 'parts' as parts %}
 {% import 'replicated' as replicated with context %}
 
+{% set backup_amount = slapparameter_dict.pop('resiliency-backup-amount', "2")|int + 1 -%}
+
 [buildout]
 eggs-directory = {{ eggs_directory }}
 develop-eggs-directory = {{ develop_eggs_directory }}
@@ -10,12 +12,12 @@ offline = true
 
 # += because we need to take up parts (like instance-custom, slapmonitor etc) from the profile we extended
 parts +=
-  {{ parts.replicate("kvm", "3") }}
+  {{ parts.replicate("kvm", backup_amount) }}
   publish-connection-informations
   kvm-frontend-url-promise
   kvm-backend-url-promise
 
-{{ replicated.replicate("kvm", "3", "kvm-export", "kvm-import", slapparameter_dict=slapparameter_dict) }}
+{{ replicated.replicate("kvm", backup_amount, "kvm-export", "kvm-import", slapparameter_dict=slapparameter_dict) }}
 
 [directory]
 recipe = slapos.cookbook:mkdirectory