Add libvirt support for vagrant plugin

bootstrapvz/plugins/vagrant/README.rst

@@ -9,4 +9,10 @@ of the virtual machine.
 
 This plugin creates a vagrant box that is ready to be shared or
 deployed. At the moment it is only compatible with the VirtualBox
-provider and doesn't requires any additional settings.
+and Libvirt providers.
+
+Settings
+~~~~~~~~
+
+-  ``provider``: Specifies the provider of a resulting vagrant box.
+   ``optional`` Valid values: ``virtualbox, libvirt`` Default: ``libvirt``

bootstrapvz/plugins/vagrant/__init__.py

@@ -6,6 +6,11 @@ from bootstrapvz.common.tools import rel_path
 
 def validate_manifest(data, validator, error):
     validator(data, rel_path(__file__, 'manifest-schema.yml'))
+    vagrant_provider = data['plugins']['vagrant'].get('provider', 'virtualbox')
+    if vagrant_provider == 'virtualbox' and data['volume']['backing'] != 'vmdk':
+        error('Virtualbox vagrant boxes support vmdk images only', ['plugins', 'vagrant', 'provider'])
+    if vagrant_provider == 'libvirt' and data['volume']['backing'] != 'qcow2':
+        error('Libvirt vagrant boxes support qcow2 images only', ['plugins', 'vagrant', 'provider'])
 
 
 def resolve_tasks(taskset, manifest):

bootstrapvz/plugins/vagrant/manifest-schema.yml

@@ -8,7 +8,7 @@ properties:
     properties:
       name:
         type: string
-        enum: [virtualbox]
+        enum: [virtualbox, kvm]
   system:
     required: [hostname]
   volume:
@@ -16,11 +16,15 @@ properties:
     properties:
       backing:
         type: string
-        enum: [vmdk]
+        enum: [vmdk, qcow2]
     required: [backing]
   plugins:
     type: object
     properties:
       vagrant:
         type: object
+        properties:
+          provider:
+            type: string
+            enum: [virtualbox, libvirt]
         additionalProperties: false

bootstrapvz/plugins/vagrant/tasks.py

@@ -4,6 +4,7 @@ from bootstrapvz.common.tasks import workspace
 from bootstrapvz.common.tools import rel_path
 import os
 import shutil
+import json
 
 assets = rel_path(__file__, 'assets')
 
@@ -128,18 +129,29 @@ class PackageBox(Task):
         from bootstrapvz.common.tools import sed_i
         sed_i(vagrantfile, '\\[MAC_ADDRESS\\]', mac_address)
 
-        metadata_source = os.path.join(assets, 'metadata.json')
-        metadata = os.path.join(info._vagrant['folder'], 'metadata.json')
-        shutil.copy(metadata_source, metadata)
+        vagrant_provider = info.manifest.plugins['vagrant'].get('provider', 'virtualbox')
+        metadata = {'provider': vagrant_provider}
+
+        if vagrant_provider == 'libvirt':
+            metadata['format'] = info.manifest.volume['backing']
+            virtual_size = info.volume.size.bytes.get_qty_in('G')
+            metadata['virtual_size'] = virtual_size
+
+        metadata_file = os.path.join(info._vagrant['folder'], 'metadata.json')
+        with open(metadata_file, 'w') as f:
+            json.dump(metadata, f)
 
         from bootstrapvz.common.tools import log_check_call
-        disk_name = 'box-disk1.' + info.volume.extension
+        if vagrant_provider == 'libvirt':
+            disk_name = 'box.img'
+        else:
+            disk_name = 'box-disk1.' + info.volume.extension
+            ovf_path = os.path.join(info._vagrant['folder'], 'box.ovf')
+            cls.write_ovf(info, ovf_path, mac_address, disk_name)
+
         disk_link = os.path.join(info._vagrant['folder'], disk_name)
         log_check_call(['ln', '-s', info.volume.image_path, disk_link])
 
-        ovf_path = os.path.join(info._vagrant['folder'], 'box.ovf')
-        cls.write_ovf(info, ovf_path, mac_address, disk_name)
-
         box_files = os.listdir(info._vagrant['folder'])
         log_check_call(['tar', '--create', '--gzip', '--dereference',
                         '--file', info._vagrant['box_path'],