Fuel Config Reap + Additional Refactoring for Autodeployment

[genesis.git] / fuel / deploy / environments / virtual_fuel.py

diff --git a/fuel/deploy/environments/virtual_fuel.py b/fuel/deploy/environments/virtual_fuel.py
new file mode 100644 (file)
index 0000000..1f939f0
--- /dev/null
+++ b/fuel/deploy/environments/virtual_fuel.py
@@ -0,0 +1,60 @@
+from lxml import etree
+
+import common
+from execution_environment import ExecutionEnvironment
+
+exec_cmd = common.exec_cmd
+log = common.log
+check_file_exists = common.check_file_exists
+check_if_root = common.check_if_root
+
+class VirtualFuel(ExecutionEnvironment):
+
+    def __init__(self, storage_dir, pxe_bridge, dha_file, root_dir):
+        super(VirtualFuel, self).__init__(
+            storage_dir, dha_file, root_dir)
+        self.pxe_bridge = pxe_bridge
+
+    def set_vm_nic(self, temp_vm_file):
+        with open(temp_vm_file) as f:
+            vm_xml = etree.parse(f)
+        interfaces = vm_xml.xpath('/domain/devices/interface')
+        for interface in interfaces:
+            interface.getparent().remove(interface)
+        interface = etree.Element('interface')
+        interface.set('type', 'bridge')
+        source = etree.SubElement(interface, 'source')
+        source.set('bridge', self.pxe_bridge)
+        model = etree.SubElement(interface, 'model')
+        model.set('type', 'virtio')
+        devices = vm_xml.xpath('/domain/devices')
+        if devices:
+            device = devices[0]
+            device.append(interface)
+        with open(temp_vm_file, 'w') as f:
+            vm_xml.write(f, pretty_print=True, xml_declaration=True)
+
+    def create_vm(self):
+        temp_dir = exec_cmd('mktemp -d')
+        vm_name = self.dha.get_node_property(self.fuel_node_id, 'libvirtName')
+        vm_template = '%s/%s' % (self.root_dir,
+                                 self.dha.get_node_property(
+                                     self.fuel_node_id, 'libvirtTemplate'))
+        check_file_exists(vm_template)
+        disk_path = '%s/%s.raw' % (self.storage_dir, vm_name)
+        disk_sizes = self.dha.get_disks()
+        disk_size = disk_sizes['fuel']
+        exec_cmd('fallocate -l %s %s' % (disk_size, disk_path))
+        temp_vm_file = '%s/%s' % (temp_dir, vm_name)
+        exec_cmd('cp %s %s' % (vm_template, temp_vm_file))
+        self.set_vm_nic(temp_vm_file)
+        self.define_vm(vm_name, temp_vm_file, disk_path)
+        exec_cmd('rm -fr %s' % temp_dir)
+
+    def setup_environment(self):
+        check_if_root()
+        self.cleanup_environment()
+        self.create_vm()
+
+    def cleanup_environment(self):
+        self.delete_vm(self.fuel_node_id)