Start openstack implementation

interface-openstack/client_interface/vm/instance.py

@@ -4,6 +4,7 @@ It should be implemented for using other providers e. g. OpenStack
 
 """
 
+
 class InstanceInterface:
 
     def create_vm(self, name, resource):
@@ -42,6 +43,9 @@ class InstanceInterface:
     def destroy_vm(self):
         pass
 
+    def migrate_vm(self):
+        pass
+
     def get_status(self):
         pass
 

interface-openstack/openstack_implementation/servers/instance.py

+from ..client_interface.vm.instance import InstanceInterface
+import openstack
+
+
+class OSInstanceInterface(InstanceInterface):
+
+    def __init__(self, cloud):
+        super().__init__(self)
+        self.openstack = openstack.connect(cloud)
+
+    def create_vm_from_template(self, name, resource, template):
+        flavor = self.openstack.compute.find_flavor(name)
+        if not flavor:
+            flavor = self.openstack.compute.Flavor(nam=name, ram=resource.ram, vcpus=resource.cpu)
+
+        image = self.openstack.compute.find_image(template)
+        if not image:
+            raise ValueError("The template not found")
+
+        new_server = self.openstack.compute.create_server(name=name,
+                                                          flavorRef=flavor.id,
+                                                          imageRef=image.id)
+
+        new_server = conn.compute.wait_for_server(new_server)
+
+        return new_server