def test_deletion():
""" Test deletion methods """
base_ami = "ami-1234abcd"
parser = parse_args([
'--keep-previous', '0', '--mapping-key', 'name', '--mapping-values',
'test-ami'
])
conn = boto3.client('ec2')
reservation = conn.run_instances(ImageId=base_ami, MinCount=1, MaxCount=1)
instance = reservation["Instances"][0]
# create amis
images = []
for i in xrange(5):
image = conn.create_image(InstanceId=instance.get("InstanceId"),
Name="test-ami")
images.append(image.get("ImageId"))
# delete one by id
app = App(parser)
assert len(AMICleaner(conn).fetch_available_amis()) == 5
assert app.prepare_delete_amis(candidates=[images[4]],
from_ids=True) is None
assert len(AMICleaner(conn).fetch_available_amis()) == 4
# delete with mapping strategy
candidates = app.fetch_and_prepare()
assert len(candidates) == 4
assert app.prepare_delete_amis(candidates) is None
assert len(AMICleaner(conn).fetch_available_amis()) == 0
def test_map_with_names():
# creating tests objects
first_ami = AMI()
first_ami.id = 'ami-28c2b348'
first_ami.name = "ubuntu-20160102"
first_ami.creation_date = datetime.now()
second_ami = AMI()
second_ami.id = 'ami-28c2b349'
second_ami.name = "ubuntu-20160103"
second_ami.creation_date = datetime.now()
third_ami = AMI()
third_ami.id = 'ami-28c2b350'
third_ami.name = "debian-20160104"
third_ami.creation_date = datetime.now()
# creating amis to drop dict
candidates = [first_ami, second_ami, third_ami]
# grouping strategy
grouping_strategy = {"key": "name", "values": ["ubuntu", "debian"]}
grouped_amis = AMICleaner().map_candidates(candidates, grouping_strategy)
assert grouped_amis is not None
assert len(grouped_amis.get('ubuntu')) == 2
assert len(grouped_amis.get('debian')) == 1
def test_fetch_candidates():
# creating tests objects
first_ami = AMI()
first_ami.id = 'ami-28c2b348'
first_ami.creation_date = datetime.now()
first_instance = AWSEC2Instance()
first_instance.id = 'i-9f9f6a2a'
first_instance.name = "first-instance"
first_instance.image_id = first_ami.id
first_instance.launch_time = datetime.now()
second_ami = AMI()
second_ami.id = 'unused-ami'
second_ami.creation_date = datetime.now()
second_instance = AWSEC2Instance()
second_instance.id = 'i-9f9f6a2a'
second_instance.name = "second-instance"
second_instance.image_id = first_ami.id
second_instance.launch_time = datetime.now()
# constructing dicts
amis_dict = dict()
amis_dict[first_ami.id] = first_ami
amis_dict[second_ami.id] = second_ami
instances_dict = dict()
instances_dict[first_instance.image_id] = instances_dict
instances_dict[second_instance.image_id] = second_instance
# testing filter
unused_ami_dict = AMICleaner().fetch_candidates(amis_dict, instances_dict)
assert len(unused_ami_dict) == 1
assert amis_dict.get('unused-ami') is not None
def test_reduce_without_rotation_number():
# creating tests objects
first_ami = AMI()
first_ami.id = 'ami-28c2b348'
first_ami.name = "ubuntu-20160102"
first_ami.creation_date = datetime(2016, 1, 10)
# just prod
second_ami = AMI()
second_ami.id = 'ami-28c2b349'
second_ami.name = "ubuntu-20160103"
second_ami.creation_date = datetime(2016, 1, 11)
# prod and web-server
third_ami = AMI()
third_ami.id = 'ami-28c2b350'
third_ami.name = "debian-20160104"
third_ami.creation_date = datetime(2016, 1, 12)
# creating amis to drop dict
candidates = [second_ami, third_ami, first_ami]
reduced, keep_previous, keep_min_day = AMICleaner().reduce_candidates(
candidates)
assert reduced == candidates and not keep_previous and not keep_min_day
def prepare_delete_amis(self, candidates, from_ids=False):
""" Prepare deletion of candidates AMIs"""
failed = []
if from_ids:
print(TERM.bold("\nCleaning from {} AMI id(s) ...".format(
len(candidates))
))
failed = AMICleaner().remove_amis_from_ids(candidates)
else:
print(TERM.bold("\nCleaning {} AMIs ...".format(len(candidates))))
failed = AMICleaner().remove_amis(candidates)
if failed:
print(TERM.red("\n{0} failed snapshots".format(len(failed))))
Printer.print_failed_snapshots(failed)
def test_fetch_instances():
""" Tests fetch instances and AMIs """
base_ami = "ami-1234abcd"
conn = boto3.client('ec2')
reservation = conn.run_instances(ImageId=base_ami, MinCount=1, MaxCount=1)
instance = reservation["Instances"][0]
assert instance.get("ImageId") == base_ami
# Test fetch instances method
assert len(AMICleaner(conn).fetch_instances()) == 1
def test_reduce_without_snapshot_id():
# creating block device
first_block_device = AWSBlockDevice()
first_block_device.snapshot_id = None
# creating tests objects
first_ami = AMI()
first_ami.id = "ami-28c2b348"
first_ami.name = "ubuntu-20160102"
first_ami.block_device_mappings.append(first_block_device)
# creating amis to drop dict
candidates = [first_ami]
assert AMICleaner().reduce_candidates(candidates) == candidates
def test_map_with_tag_exclusions():
# tags
stack_tag = AWSTag()
stack_tag.key = "stack"
stack_tag.value = "web-server"
env_tag = AWSTag()
env_tag.key = "env"
env_tag.value = "prod"
# creating tests objects
# prod and web-server
first_ami = AMI()
first_ami.id = 'ami-28c2b348'
first_ami.name = "ubuntu-20160102"
first_ami.tags.append(stack_tag)
first_ami.tags.append(env_tag)
first_ami.creation_date = datetime.now()
# just prod
second_ami = AMI()
second_ami.id = 'ami-28c2b349'
second_ami.name = "ubuntu-20160103"
second_ami.tags.append(env_tag)
second_ami.creation_date = datetime.now()
# just web-server
third_ami = AMI()
third_ami.id = 'ami-28c2b350'
third_ami.name = "debian-20160104"
third_ami.tags.append(stack_tag)
third_ami.creation_date = datetime.now()
# creating amis to drop dict
candidates = [first_ami, second_ami, third_ami]
# grouping strategy
grouping_strategy = {
"key": "tags",
"values": ["stack", "env"],
"excluded": ["prod"]
}
grouped_amis = AMICleaner().map_candidates(candidates, grouping_strategy)
assert grouped_amis is not None
assert grouped_amis.get("prod") is None
assert grouped_amis.get("prod.web-server") is None
assert len(grouped_amis.get("web-server")) == 1
def test_reduce():
# creating tests objects
first_ami = AMI()
first_ami.id = 'ami-28c2b348'
first_ami.name = "ubuntu-20160102"
first_ami.creation_date = datetime(2016, 1, 10)
# just prod
second_ami = AMI()
second_ami.id = 'ami-28c2b349'
second_ami.name = "ubuntu-20160103"
second_ami.creation_date = datetime(2016, 1, 11)
# prod and web-server
third_ami = AMI()
third_ami.id = 'ami-28c2b350'
third_ami.name = "debian-20160104"
third_ami.creation_date = datetime(2016, 1, 12)
# keep 2 recent amis
candidates = [second_ami, third_ami, first_ami]
rotation_number = 2
cleaner = AMICleaner()
left, keep_previous, keep_min_day = cleaner.reduce_candidates(
candidates, rotation_number)
assert len(left) == 1
assert len(keep_previous) == 2
assert len(keep_min_day) == 0
assert left[0].id == first_ami.id
# keep 1 recent ami
rotation_number = 1
left, keep_previous, keep_min_day = cleaner.reduce_candidates(
candidates, rotation_number)
assert len(left) == 2
assert len(keep_previous) == 2
assert len(keep_min_day) == 0
assert left[0].id == second_ami.id
# keep 5 recent amis
rotation_number = 5
left, keep_previous, keep_min_day = cleaner.reduce_candidates(
candidates, rotation_number)
assert len(left) == 0
assert len(keep_previous) == 2
assert len(keep_min_day) == 0
def test_reduce_without_snapshot_id():
# creating block device
first_block_device = AWSBlockDevice()
first_block_device.snapshot_id = None
# creating tests objects
first_ami = AMI()
first_ami.id = 'ami-28c2b348'
first_ami.name = "ubuntu-20160102"
first_ami.block_device_mappings.append(first_block_device)
# creating amis to drop dict
candidates = [first_ami]
reduced, keep_previous, keep_min_day = AMICleaner().reduce_candidates(
candidates)
assert reduced == candidates and not keep_previous and not keep_min_day
def test_reduce_without_rotation_number():
# creating tests objects
first_ami = AMI()
first_ami.id = "ami-28c2b348"
first_ami.name = "ubuntu-20160102"
first_ami.creation_date = datetime(2016, 1, 10)
# just prod
second_ami = AMI()
second_ami.id = "ami-28c2b349"
second_ami.name = "ubuntu-20160103"
second_ami.creation_date = datetime(2016, 1, 11)
# prod and web-server
third_ami = AMI()
third_ami.id = "ami-28c2b350"
third_ami.name = "debian-20160104"
third_ami.creation_date = datetime(2016, 1, 12)
# creating amis to drop dict
candidates = [second_ami, third_ami, first_ami]
assert AMICleaner().reduce_candidates(candidates) == candidates
def prepare_candidates(self, candidates_amis=None):
""" From an AMI list apply mapping strategy and filters """
candidates_amis = candidates_amis or self.fetch_candidates()
if not candidates_amis:
return None
c = AMICleaner()
mapped_amis = c.map_candidates(
candidates_amis=candidates_amis,
mapping_strategy=self.mapping_strategy,
)
if not mapped_amis:
return None
candidates = []
report = dict()
for group_name, amis in mapped_amis.items():
group_name = group_name or ""
if not group_name:
report["no-tags (excluded)"] = amis
else:
reduced = c.reduce_candidates(amis, self.keep_previous, self.ami_min_days)
if reduced:
report[group_name] = reduced
candidates.extend(reduced)
Printer.print_report(report, self.full_report)
return candidates
def test_map_candidates_with_null_arguments():
assert AMICleaner().map_candidates({}, {}) == {}
def test_remove_ami_from_none():
assert AMICleaner().remove_amis(None) == []