Additional description for the snapshots

makesnapshots.py

@@ -20,6 +20,10 @@
 # version 3.2: Tags of the volume are placed on the new snapshot
 # version 3.3: Merged IAM role addidtion from Github
 
+# Adding ec2 instance name and device name in the description of the snapshots
+# This helps in recognising the volumes easily when restore is required
+# Each corresponding ec2 instance must have Tag with Key "Name" and Value assigned as its name/hostname
+
 from boto.ec2.connection import EC2Connection
 from boto.ec2.regioninfo import RegionInfo
 import boto.sns
@@ -99,6 +103,7 @@
     # non proxy:
     # using roles
     if aws_access_key:
+
         conn = EC2Connection(aws_access_key, aws_secret_key, region=region)
     else:
         conn = EC2Connection(region=region)
@@ -121,16 +126,26 @@
         else:
             sns = boto.sns.connect_to_region(ec2_region_name)
 
+
+## adding routine to get extra info like instance name per volume
+def get_ec2_instance_names(id_of_ec2):
+    if id_of_ec2:
+        ec2_test = conn.get_all_instances(filters={'instance-id': id_of_ec2})
+        new_res = ec2_test[0].instances[0].tags['Name']
+    return new_res
+
+
 def get_resource_tags(resource_id):
     resource_tags = {}
     if resource_id:
-        tags = conn.get_all_tags({ 'resource-id': resource_id })
+        tags = conn.get_all_tags({'resource-id': resource_id})
         for tag in tags:
             # Tags starting with 'aws:' are reserved for internal use
             if not tag.name.startswith('aws:'):
                 resource_tags[tag.name] = tag.value
     return resource_tags
 
+
 def set_resource_tags(resource, tags):
     for tag_key, tag_value in tags.iteritems():
         if tag_key not in resource.tags or resource.tags[tag_key] != tag_value:
@@ -143,9 +158,17 @@ def set_resource_tags(resource, tags):
 
 # Get all the volumes that match the tag criteria
 print 'Finding volumes that match the requested tag ({ "tag:%(tag_name)s": "%(tag_value)s" })' % config
-vols = conn.get_all_volumes(filters={ 'tag:' + config['tag_name']: config['tag_value'] })
 
+#vols = conn.get_all_volumes(filters={'tag:' + config['tag_name']: config['tag_value']})
+
+vols = conn.get_all_volumes(filters={config['tag_name']: config['tag_value']})
 for vol in vols:
+#     print vol
+    machine_name = get_ec2_instance_names(vol.attach_data.instance_id)
+    machine_id = vol.attach_data.instance_id
+    device_info = vol.attach_data.device
+    extra_info = machine_name + '\t' + machine_id + '\t' + device_info
+    #print extra_info
     try:
         count_total += 1
         logging.info(vol)
@@ -155,11 +178,17 @@ def set_resource_tags(resource, tags):
             'vol_id': vol.id,
             'date_suffix': date_suffix,
             'date': datetime.today().strftime('%d-%m-%Y %H:%M:%S')
+
         }
+
+        extra_description = description + '\t' + extra_info 
+
+        #print extra_description
+
         try:
-            current_snap = vol.create_snapshot(description)
+            current_snap = vol.create_snapshot(extra_description)
             set_resource_tags(current_snap, tags_volume)
-            suc_message = 'Snapshot created with description: %s and tags: %s' % (description, str(tags_volume))
+            suc_message = 'Snapshot created with description: %s and tags: %s' % (extra_description, str(tags_volume))
             print '     ' + suc_message
             logging.info(suc_message)
             total_creates += 1
@@ -235,4 +264,3 @@ def date_compare(snap1, snap2):
     sns.publish(sns_arn, message, 'Finished AWS snapshotting')
 
 logging.info(result)
-