Start the InstanceInterface, OpenStack manager for the virtual machines

implementation/instance.py

+from interface.vm.instance import InstanceInterface
+
+
+class OSVirtualMachineManager(InstanceInterface):
+
+    def __init__(self, cloud):
+        super().__init__()
+        self.openstack = cloud
+
+    def create_vm_from_template(self, name, resource, template):
+        flavor = self.openstack.compute.find_flavor('cirros256')
+        # TODO plan flavors
+        if flavor is None:
+            flavor = self.openstack.compute.create_flavor(name=name, ram=resource['ram'], vcpus=resource['cpu'], disk=20)
+
+        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 = self.openstack.compute.wait_for_server(new_server)
+
+        return new_server
+
+    def get_vm(self, name_or_id=None):
+        if not name_or_id:
+            raise ValueError("Name or id doesn't given")
+        server_instance = self.openstack.get_server(name_or_id)
+        if not server_instance:
+            raise ValueError("Could not get the vm")
+        return server_instance
+
+    def start_vm(self, name_or_id=None):
+        if name_or_id:
+            instance = self.get_vm(name_or_id)
+        self.openstack.compute.start_server(instance)
+
+    def stop_vm(self, name_or_id=None):
+        if name_or_id:
+            instance = self.get_vm(name_or_id)
+        self.openstack.compute.stop_server(instance)

implementation/vm/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

implementation/vm/vm.py

+import json
+
+
+class Instance:
+    ''' The releveant data of the virtual machine instances
+        This data would be sent by the interface to the portal,
+        when it requests a virtual machine instance and vica versa
+    '''
+
+    ssh_keys = None
+    console_access_url = None
+
+    def __init__(self, id, name, resource, resource_name, image_id,
+                 disks=None, interfaces=None):
+        self.id = id
+        self.name = name
+        self.resource = resource
+        self.resource_name = resource_name
+        self.image = image_id
+        self.disks = [disks]
+        self.interfaces = None
+
+    def JSON(self):
+        return json.dump(self)

interface/vm/instance.py

@@ -8,70 +8,70 @@ It should be implemented for using other providers e. g. OpenStack
 class InstanceInterface:
 
     def create_vm(self, name, resource):
-        pass
+        raise NotImplementedError
 
     def create_vm_from_template(self, template, resource):
-        pass
+        raise NotImplementedError
 
     def create_multiple_vm_from_template(self, template, resource, number):
-        pass
+        raise NotImplementedError
 
-    def get_vm_by_id(self, id):
-        pass
+    def get_vm(self, name_or_id):
+        raise NotImplementedError
 
-    def start_vm(self):
-        pass
+    def start_vm(self, name_or_id):
+        raise NotImplementedError
 
-    def stop_vm(self):
-        pass
+    def stop_vm(self, name_or_id):
+        raise NotImplementedError
 
-    def suspend_vm(self):
-        pass
+    def suspend_vm(self, name_or_id):
+        raise NotImplementedError
 
-    def wake_up_vm(self):
-        pass
+    def wake_up_vm(self, name_or_id):
+        raise NotImplementedError
 
-    def shut_off_vm(self):
-        pass
+    def shut_off_vm(self, name_or_id):
+        raise NotImplementedError
 
-    def reboot_vm(self):
-        pass
+    def reboot_vm(self, name_or_id):
+        raise NotImplementedError
 
-    def reset_vm(self):
-        pass
+    def reset_vm(self, name_or_id):
+        raise NotImplementedError
 
-    def destroy_vm(self):
-        pass
+    def destroy_vm(self, name_or_id):
+        raise NotImplementedError
 
-    def migrate_vm(self):
-        pass
+    def migrate_vm(self, name_or_id, to):
+        raise NotImplementedError
 
-    def get_status(self):
-        pass
+    def get_status(self, name_or_id):
+        raise NotImplementedError
 
-    def list_all_vm(self):
-        pass
+    def list_all_vm(self, name_or_id):
+        raise NotImplementedError
 
-    def install_ssh_key(self, key):
-        pass
+    def install_ssh_key(self, name_or_id, key):
+        raise NotImplementedError
 
-    def save_as_template(self):
-        pass
+    def save_as_template(self, name_or_id):
+        raise NotImplementedError
 
-    def get_vnc_console(self):
-        pass
+    def get_vnc_console(self, name_or_id):
+        raise NotImplementedError
 
-    def change_password(self):
-        pass
+    def change_password(self, name_or_id):
+        raise NotImplementedError
 
-    def get_password(self):
-        pass
+    def get_password(self, name_or_id):
+        raise NotImplementedError
 
-    def resize_vm(self):
-        pass
+    def resize_vm(self, name_or_id):
+        raise NotImplementedError
 
-    def create_template(self):
-        pass
+    def create_template(self, name_or_id, template_name):
+        raise NotImplementedError
 
-    def attach_volume(self):
-        pass
+    def attach_volume(self, name_or_id, amount):
+        raise NotImplementedError

main.py

 # This file is for testing the openstack api access
+from implementation.instance import OSVirtualMachineManager
+import openstack
+
+openstack.enable_logging(debug=True)
+
+conn = openstack.connect(cloud='openstack')
+
+interface = OSVirtualMachineManager(conn)
+resource = {"ram": 1024, "cpu": 2}
+print('#'*40)
+print(resource)
+
+# interface.create_vm_from_template('new_server', resource, "cirros-0.4.0-x86_64-disk")
+interface.stop_vm('a6bc504f-a422-4492-b429-e5dad2df12f4')