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.",

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