Kashyap | volume swap is working and added a volume map

ec2driver.py

@@ -37,6 +37,9 @@ from nova.openstack.common import loopingcall
 from nova.virt import driver
 from nova.virt import virtapi
 from nova.compute import flavors
+import base64
+import time
+from novaclient.v1_1 import client
 from credentials import get_nova_creds
 
 LOG = logging.getLogger(__name__)
@@ -393,6 +396,14 @@ class EC2Driver(driver.ComputeDriver):
         if instance_name not in self._mounts:
             self._mounts[instance_name] = {}
         self._mounts[instance_name][mountpoint] = new_connection_info
+
+        old_volume_id = old_connection_info['data']['volume_id']
+        new_volume_id = new_connection_info['data']['volume_id']
+
+        self.detach_volume(old_connection_info, instance, mountpoint)
+        # wait for the old volume to detach successfully to make sure /dev/sdn is available for the new volume to be attached
+        time.sleep(60)
+        self.ec2_conn.attach_volume(volume_map[new_volume_id], instance['metadata']['ec2_id'], "/dev/sdn", dry_run=False)
         return True
 
     def attach_interface(self, instance, image_meta, vif):

ec2driver_config.py

@@ -29,8 +29,8 @@ flavor_map = {'m1.tiny': 't2.micro', 'm1.small': 't2.small', 'm1.medium': 't2.me
               'm1.xlarge': 'c3.2xlarge'}
 #Add image maps key: image in openstack, Value: EC2_AMI_ID
 image_map = {}
-volume_map = {'46c7a63e-1069-4049-a4a4-648c905bf205': 'vol-83db57cb',
-			  '5c15bca3-fecc-4ed5-86aa-aefacb514c41': 'vol-83db57cb'}
+volume_map = {'3df37a34-662e-4aa8-b71d-b8313d2e945b': 'vol-83db57cb',
+			  '7d63c661-7e93-445b-b3cb-765f1c8ae4c0': 'vol-1eea8a56'}
 keypair_map = {}
 
 # The limit on maximum resources you could have in the AWS EC2.