add some changes

component/packer/buildout.cfg

 [buildout]
 
 parts =
+  slap-configuration
   packer
 
+[slap-configuration]
+recipe = slapos.cookbook:slapconfiguration
+computer = ${slap_connection:computer_id}
+partition = ${slap_connection:partition_id}
+url = ${slap_connection:server_url}
+key = ${slap_connection:key_file}
+cert = ${slap_connection:cert_file}
+
+
 [packer]
 recipe = slapos.recipe.build
 
@@ -16,7 +26,7 @@ md5sum_x86-64 = f343d709b84db494e8d6ec38259aa4a6
 
 # script to install.
 script =
-  location = %(location)r
+  location = %(location)
   self.failIfPathExists(location)
   import sys
   ARCH_DIR_MAP = { 'x86': 'x86', 'x86-64': 'x86_64' }
@@ -26,3 +36,13 @@ script =
   md5sum = self.options['md5sum_' + platform]
   extract_dir = self.extract(self.download(url, md5sum))
   shutil.move(extract_dir, location)
+  
+  
+[packer-json-template]
+recipe = hexagonit.recipe.download
+url = ${slap-configuration:configuration:packer_json}
+destination = ${buildout:parts-directory}
+filename = packer-template.json
+#md5sum = 47d492dafe5cb314bdc49bf013d21ead
+download-only = true
+on-update = true
\ No newline at end of file

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

@@ -4,6 +4,14 @@
 
   "title": "Input Parameters",
   "properties": {
+    "packer_json": {
+      "title": "KVM packer JSON",
+      "description": "The json file describing what image to build",
+      "type": "string",
+      "format": "uri",
+      "default": "http://lab.nexedi.cn/krruzic/test-repository/packer-debian-schema.json",
+      "enum": ["http://lab.nexedi.cn/krruzic/test-repository/packer-debian-schema.json"]
+    },
     "ram-size": {
       "title": "RAM size",
       "description": "RAM size, in MB.",
@@ -76,7 +84,6 @@
       "minimum": 1,
       "maximum": 65535
     },
-
     "virtual-hard-drive-url": {
       "title": "Existing disk image URL",
       "description": "If specified, will download an existing disk image (qcow2, raw, ...), and will use it as main virtual hard drive. Can be used to download and use an already installed and customized virtual hard drive.",
@@ -94,7 +101,7 @@
       "type": "boolean",
       "default": false
     },
-
+    
     "external-disk-number": {
       "title": "Number of additional disk to create for virtual machine",
       "description": "Specify the number of additional disk to create for virtual machine in data folder of SlapOS Node. Requires instance_storage_home to be configured on SlapOS Node.",

software/packer/instance.cfg.in

+${instance-parameter:configuration.name-of-parameter}
+
+[packer-build]
+recipe = slapos.cookbook:wrapper
+command-line =
+  packer build
+  ${buildout:parts-directory}/${packer-json-template:filename}
\ No newline at end of file