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snapshot by instance and instance-volume information #32

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snapshot by instance and instance-volume information #32

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d25e2d0
merged from https://github.com/alexadriaanse/aws-snapshot-tool/tree/s…
mlalpho May 24, 2016
335d083
left out start message
mlalpho May 25, 2016
8972471
config.sample update
mlalpho May 25, 2016
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8 changes: 7 additions & 1 deletion config.sample
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Original file line number Diff line number Diff line change
Expand Up @@ -9,9 +9,15 @@ config = {
'ec2_region_endpoint': 'ec2.eu-west-1.amazonaws.com',

# Tag of the EBS volume you want to take the snapshots of
'tag_name': 'tag:MakeSnapshot',
'tag_name': 'MakeSnapshot',
'tag_value': 'True',

# tag_type 'volume' will cause individual volumes that match the above tag
# to be snapshotted.
# tag_type 'instance' will cause volumes attached to running instances that
# match the above tag to be snapshotted.
'tag_type': 'instance',

# Number of snapshots to keep (the older ones are going to be deleted,
# since they cost money).
'keep_day': 5,
Expand Down
1 change: 1 addition & 0 deletions iam.policy.sample
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Expand Up @@ -17,6 +17,7 @@
"ec2:CreateTags",
"ec2:DeleteSnapshot",
"ec2:DescribeAvailabilityZones",
"ec2:DescribeInstances",
"ec2:DescribeSnapshots",
"ec2:DescribeTags",
"ec2:DescribeVolumeAttribute",
Expand Down
30 changes: 27 additions & 3 deletions makesnapshots.py
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Expand Up @@ -65,7 +65,6 @@
'period': period,
'date': datetime.today().strftime('%d-%m-%Y %H:%M:%S')
}
message += start_message + "\n\n"
logging.info(start_message)

# Get settings from config.py
Expand Down Expand Up @@ -142,8 +141,29 @@ def set_resource_tags(resource, tags):
resource.add_tag(tag_key, tag_value)

# 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'] })
instance_names = []
tag_type = config.get('tag_type', 'volume')
if tag_type == 'volume':
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'] })
elif tag_type == 'instance':
print 'Finding volumes attached to running instances that match the requested tag ({ "tag:%(tag_name)s": "%(tag_value)s" })' % config
reservations = conn.get_all_instances(filters={
'instance-state-name': 'running',
'tag:' + config['tag_name']: config['tag_value']})
volume_ids = []
for r in reservations:
for i in r.instances:
for bdt in i.block_device_mapping.itervalues():
volume_ids.append(bdt.volume_id)
if 'Name' in i.tags:
instance_names.append(i.tags['Name'] + " - " + bdt.volume_id)
else:
instance_names.append(i.id + " - " + bdt.volume_id)
vols = conn.get_all_volumes(volume_ids=volume_ids)
else:
print "tag_type should either be 'volume' or 'instance'."
quit()

for vol in vols:
try:
Expand Down Expand Up @@ -219,6 +239,10 @@ def date_compare(snap1, snap2):
'count_success': count_success,
'count_total': count_total
}
message += start_message + "\n\n"
message += "These are the instances and their volumes:\n"
for instance_name in instance_names:
message += instance_name + "\n"

message += result
message += "\nTotal snapshots created: " + str(total_creates)
Expand Down