Merge in autoscaling

This commit is contained in:
Steve Pulec 2013-07-27 16:24:38 -04:00
parent 674a85ba0b
commit d57157e749
12 changed files with 1165 additions and 0 deletions

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import logging
logging.getLogger('boto').setLevel(logging.CRITICAL)
from .autoscaling import mock_autoscaling
from .dynamodb import mock_dynamodb
from .ec2 import mock_ec2
from .elb import mock_elb

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from .models import autoscaling_backend
mock_autoscaling = autoscaling_backend.decorator

225
moto/autoscaling/models.py Normal file
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from moto.core import BaseBackend
from moto.ec2 import ec2_backend
# http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/AS_Concepts.html#Cooldown
DEFAULT_COOLDOWN = 300
class FakeScalingPolicy(object):
def __init__(self, name, adjustment_type, as_name, scaling_adjustment,
cooldown):
self.name = name
self.adjustment_type = adjustment_type
self.as_name = as_name
self.scaling_adjustment = scaling_adjustment
if cooldown is not None:
self.cooldown = cooldown
else:
self.cooldown = DEFAULT_COOLDOWN
def execute(self):
if self.adjustment_type == 'ExactCapacity':
autoscaling_backend.set_desired_capacity(self.as_name, self.scaling_adjustment)
elif self.adjustment_type == 'ChangeInCapacity':
autoscaling_backend.change_capacity(self.as_name, self.scaling_adjustment)
elif self.adjustment_type == 'PercentChangeInCapacity':
autoscaling_backend.change_capacity_percent(self.as_name, self.scaling_adjustment)
class FakeLaunchConfiguration(object):
def __init__(self, name, image_id, key_name, security_groups, user_data,
instance_type, instance_monitoring, instance_profile_name,
spot_price):
self.name = name
self.image_id = image_id
self.key_name = key_name
self.security_groups = security_groups
self.user_data = user_data
self.instance_type = instance_type
self.instance_monitoring = instance_monitoring
self.instance_profile_name = instance_profile_name
self.spot_price = spot_price
@property
def instance_monitoring_enabled(self):
if self.instance_monitoring:
return 'true'
return 'false'
class FakeAutoScalingGroup(object):
def __init__(self, name, availability_zones, desired_capacity, max_size,
min_size, launch_config_name, vpc_zone_identifier):
self.name = name
self.availability_zones = availability_zones
self.max_size = max_size
self.min_size = min_size
self.launch_config = autoscaling_backend.launch_configurations[launch_config_name]
self.launch_config_name = launch_config_name
self.vpc_zone_identifier = vpc_zone_identifier
self.instances = []
self.set_desired_capacity(desired_capacity)
def update(self, availability_zones, desired_capacity, max_size, min_size,
launch_config_name, vpc_zone_identifier):
self.availability_zones = availability_zones
self.max_size = max_size
self.min_size = min_size
self.launch_config = autoscaling_backend.launch_configurations[launch_config_name]
self.launch_config_name = launch_config_name
self.vpc_zone_identifier = vpc_zone_identifier
self.set_desired_capacity(desired_capacity)
def set_desired_capacity(self, new_capacity):
if new_capacity is None:
self.desired_capacity = self.min_size
else:
self.desired_capacity = new_capacity
curr_instance_count = len(self.instances)
if self.desired_capacity == curr_instance_count:
return
if self.desired_capacity > curr_instance_count:
# Need more instances
count_needed = self.desired_capacity - curr_instance_count
reservation = ec2_backend.add_instances(
self.launch_config.image_id,
count_needed,
self.launch_config.user_data
)
for instance in reservation.instances:
instance.autoscaling_group = self
self.instances.extend(reservation.instances)
else:
# Need to remove some instances
count_to_remove = curr_instance_count - self.desired_capacity
instances_to_remove = self.instances[:count_to_remove]
instance_ids_to_remove = [instance.id for instance in instances_to_remove]
ec2_backend.terminate_instances(instance_ids_to_remove)
self.instances = self.instances[count_to_remove:]
class AutoScalingBackend(BaseBackend):
def __init__(self):
self.autoscaling_groups = {}
self.launch_configurations = {}
self.policies = {}
def create_launch_configuration(self, name, image_id, key_name,
security_groups, user_data, instance_type,
instance_monitoring, instance_profile_name,
spot_price):
launch_configuration = FakeLaunchConfiguration(
name=name,
image_id=image_id,
key_name=key_name,
security_groups=security_groups,
user_data=user_data,
instance_type=instance_type,
instance_monitoring=instance_monitoring,
instance_profile_name=instance_profile_name,
spot_price=spot_price,
)
self.launch_configurations[name] = launch_configuration
return launch_configuration
def describe_launch_configurations(self, names):
configurations = self.launch_configurations.values()
if names:
return [configuration for configuration in configurations if configuration.name in names]
else:
return configurations
def delete_launch_configuration(self, launch_configuration_name):
self.launch_configurations.pop(launch_configuration_name, None)
def create_autoscaling_group(self, name, availability_zones,
desired_capacity, max_size, min_size,
launch_config_name, vpc_zone_identifier):
group = FakeAutoScalingGroup(
name=name,
availability_zones=availability_zones,
desired_capacity=desired_capacity,
max_size=max_size,
min_size=min_size,
launch_config_name=launch_config_name,
vpc_zone_identifier=vpc_zone_identifier,
)
self.autoscaling_groups[name] = group
return group
def update_autoscaling_group(self, name, availability_zones,
desired_capacity, max_size, min_size,
launch_config_name, vpc_zone_identifier):
group = self.autoscaling_groups[name]
group.update(availability_zones, desired_capacity, max_size,
min_size, launch_config_name, vpc_zone_identifier)
return group
def describe_autoscaling_groups(self, names):
groups = self.autoscaling_groups.values()
if names:
return [group for group in groups if group.name in names]
else:
return groups
def delete_autoscaling_group(self, group_name):
self.autoscaling_groups.pop(group_name, None)
def describe_autoscaling_instances(self):
instances = []
for group in self.autoscaling_groups.values():
instances.extend(group.instances)
return instances
def set_desired_capacity(self, group_name, desired_capacity):
group = self.autoscaling_groups[group_name]
group.set_desired_capacity(desired_capacity)
def change_capacity(self, group_name, scaling_adjustment):
group = self.autoscaling_groups[group_name]
desired_capacity = group.desired_capacity + scaling_adjustment
self.set_desired_capacity(group_name, desired_capacity)
def change_capacity_percent(self, group_name, scaling_adjustment):
""" http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/as-scale-based-on-demand.html
If PercentChangeInCapacity returns a value between 0 and 1,
Auto Scaling will round it off to 1. If the PercentChangeInCapacity
returns a value greater than 1, Auto Scaling will round it off to the
lower value. For example, if PercentChangeInCapacity returns 12.5,
then Auto Scaling will round it off to 12."""
group = self.autoscaling_groups[group_name]
percent_change = 1 + (scaling_adjustment / 100.0)
desired_capacity = group.desired_capacity * percent_change
if group.desired_capacity < desired_capacity < group.desired_capacity + 1:
desired_capacity = group.desired_capacity + 1
else:
desired_capacity = int(desired_capacity)
self.set_desired_capacity(group_name, desired_capacity)
def create_autoscaling_policy(self, name, adjustment_type, as_name,
scaling_adjustment, cooldown):
policy = FakeScalingPolicy(name, adjustment_type, as_name,
scaling_adjustment, cooldown)
self.policies[name] = policy
return policy
def describe_policies(self):
return self.policies.values()
def delete_policy(self, group_name):
self.policies.pop(group_name, None)
def execute_policy(self, group_name):
policy = self.policies[group_name]
policy.execute()
autoscaling_backend = AutoScalingBackend()

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from jinja2 import Template
from moto.core.responses import BaseResponse
from .models import autoscaling_backend
class AutoScalingResponse(BaseResponse):
def _get_param(self, param_name):
return self.querystring.get(param_name, [None])[0]
def _get_int_param(self, param_name):
value = self._get_param(param_name)
if value is not None:
return int(value)
def _get_multi_param(self, param_prefix):
return [value[0] for key, value in self.querystring.items() if key.startswith(param_prefix)]
def create_launch_configuration(self):
instance_monitoring_string = self._get_param('InstanceMonitoring.Enabled')
if instance_monitoring_string == 'true':
instance_monitoring = True
else:
instance_monitoring = False
autoscaling_backend.create_launch_configuration(
name=self._get_param('LaunchConfigurationName'),
image_id=self._get_param('ImageId'),
key_name=self._get_param('KeyName'),
security_groups=self._get_multi_param('SecurityGroups.member.'),
user_data=self._get_param('UserData'),
instance_type=self._get_param('InstanceType'),
instance_monitoring=instance_monitoring,
instance_profile_name=self._get_param('IamInstanceProfile'),
spot_price=self._get_param('SpotPrice'),
)
template = Template(CREATE_LAUNCH_CONFIGURATION_TEMPLATE)
return template.render()
def describe_launch_configurations(self):
names = self._get_multi_param('LaunchConfigurationNames')
launch_configurations = autoscaling_backend.describe_launch_configurations(names)
template = Template(DESCRIBE_LAUNCH_CONFIGURATIONS_TEMPLATE)
return template.render(launch_configurations=launch_configurations)
def delete_launch_configuration(self):
launch_configurations_name = self.querystring.get('LaunchConfigurationName')[0]
autoscaling_backend.delete_launch_configuration(launch_configurations_name)
template = Template(DELETE_LAUNCH_CONFIGURATION_TEMPLATE)
return template.render()
def create_auto_scaling_group(self):
autoscaling_backend.create_autoscaling_group(
name=self._get_param('AutoScalingGroupName'),
availability_zones=self._get_multi_param('AvailabilityZones.member'),
desired_capacity=self._get_int_param('DesiredCapacity'),
max_size=self._get_int_param('MaxSize'),
min_size=self._get_int_param('MinSize'),
launch_config_name=self._get_param('LaunchConfigurationName'),
vpc_zone_identifier=self._get_param('VPCZoneIdentifier'),
)
template = Template(CREATE_AUTOSCALING_GROUP_TEMPLATE)
return template.render()
def describe_auto_scaling_groups(self):
names = self._get_multi_param("AutoScalingGroupNames")
groups = autoscaling_backend.describe_autoscaling_groups(names)
template = Template(DESCRIBE_AUTOSCALING_GROUPS_TEMPLATE)
return template.render(groups=groups)
def update_auto_scaling_group(self):
autoscaling_backend.update_autoscaling_group(
name=self._get_param('AutoScalingGroupName'),
availability_zones=self._get_multi_param('AvailabilityZones.member'),
desired_capacity=self._get_int_param('DesiredCapacity'),
max_size=self._get_int_param('MaxSize'),
min_size=self._get_int_param('MinSize'),
launch_config_name=self._get_param('LaunchConfigurationName'),
vpc_zone_identifier=self._get_param('VPCZoneIdentifier'),
)
template = Template(UPDATE_AUTOSCALING_GROUP_TEMPLATE)
return template.render()
def delete_auto_scaling_group(self):
group_name = self._get_param('AutoScalingGroupName')
autoscaling_backend.delete_autoscaling_group(group_name)
template = Template(DELETE_AUTOSCALING_GROUP_TEMPLATE)
return template.render()
def set_desired_capacity(self):
group_name = self._get_param('AutoScalingGroupName')
desired_capacity = self._get_int_param('DesiredCapacity')
autoscaling_backend.set_desired_capacity(group_name, desired_capacity)
template = Template(SET_DESIRED_CAPACITY_TEMPLATE)
return template.render()
def describe_auto_scaling_instances(self):
instances = autoscaling_backend.describe_autoscaling_instances()
template = Template(DESCRIBE_AUTOSCALING_INSTANCES_TEMPLATE)
return template.render(instances=instances)
def put_scaling_policy(self):
policy = autoscaling_backend.create_autoscaling_policy(
name=self._get_param('PolicyName'),
adjustment_type=self._get_param('AdjustmentType'),
as_name=self._get_param('AutoScalingGroupName'),
scaling_adjustment=self._get_int_param('ScalingAdjustment'),
cooldown=self._get_int_param('Cooldown'),
)
template = Template(CREATE_SCALING_POLICY_TEMPLATE)
return template.render(policy=policy)
def describe_policies(self):
policies = autoscaling_backend.describe_policies()
template = Template(DESCRIBE_SCALING_POLICIES_TEMPLATE)
return template.render(policies=policies)
def delete_policy(self):
group_name = self._get_param('PolicyName')
autoscaling_backend.delete_policy(group_name)
template = Template(DELETE_POLICY_TEMPLATE)
return template.render()
def execute_policy(self):
group_name = self._get_param('PolicyName')
autoscaling_backend.execute_policy(group_name)
template = Template(EXECUTE_POLICY_TEMPLATE)
return template.render()
CREATE_LAUNCH_CONFIGURATION_TEMPLATE = """<CreateLaunchConfigurationResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<ResponseMetadata>
<RequestId>7c6e177f-f082-11e1-ac58-3714bEXAMPLE</RequestId>
</ResponseMetadata>
</CreateLaunchConfigurationResponse>"""
DESCRIBE_LAUNCH_CONFIGURATIONS_TEMPLATE = """<DescribeLaunchConfigurationsResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<DescribeLaunchConfigurationsResult>
<LaunchConfigurations>
{% for launch_configuration in launch_configurations %}
<member>
<SecurityGroups>
{% for security_group in launch_configuration.security_groups %}
<member>{{ security_group }}</member>
{% endfor %}
</SecurityGroups>
<CreatedTime>2013-01-21T23:04:42.200Z</CreatedTime>
<KernelId/>
{% if launch_configuration.instance_profile_name %}
<IamInstanceProfile>{{ launch_configuration.instance_profile_name }}</IamInstanceProfile>
{% endif %}
<LaunchConfigurationName>{{ launch_configuration.name }}</LaunchConfigurationName>
{% if launch_configuration.user_data %}
<UserData>{{ launch_configuration.user_data }}</UserData>
{% else %}
<UserData/>
{% endif %}
<InstanceType>m1.small</InstanceType>
<LaunchConfigurationARN>arn:aws:autoscaling:us-east-1:803981987763:launchConfiguration:
9dbbbf87-6141-428a-a409-0752edbe6cad:launchConfigurationName/my-test-lc</LaunchConfigurationARN>
<BlockDeviceMappings/>
<ImageId>{{ launch_configuration.image_id }}</ImageId>
{% if launch_configuration.key_name %}
<KeyName>{{ launch_configuration.key_name }}</KeyName>
{% else %}
<KeyName/>
{% endif %}
<RamdiskId/>
<InstanceMonitoring>
<Enabled>{{ launch_configuration.instance_monitoring_enabled }}</Enabled>
</InstanceMonitoring>
{% if launch_configuration.spot_price %}
<SpotPrice>{{ launch_configuration.spot_price }}</SpotPrice>
{% endif %}
</member>
{% endfor %}
</LaunchConfigurations>
</DescribeLaunchConfigurationsResult>
<ResponseMetadata>
<RequestId>d05a22f8-b690-11e2-bf8e-2113fEXAMPLE</RequestId>
</ResponseMetadata>
</DescribeLaunchConfigurationsResponse>"""
DELETE_LAUNCH_CONFIGURATION_TEMPLATE = """<DeleteLaunchConfigurationResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<ResponseMetadata>
<RequestId>7347261f-97df-11e2-8756-35eEXAMPLE</RequestId>
</ResponseMetadata>
</DeleteLaunchConfigurationResponse>"""
CREATE_AUTOSCALING_GROUP_TEMPLATE = """<CreateAutoScalingGroupResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<ResponseMetadata>
<RequestId>8d798a29-f083-11e1-bdfb-cb223EXAMPLE</RequestId>
</ResponseMetadata>
</CreateAutoScalingGroupResponse>"""
DESCRIBE_AUTOSCALING_GROUPS_TEMPLATE = """<DescribeAutoScalingGroupsResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<DescribeAutoScalingGroupsResult>
<AutoScalingGroups>
{% for group in groups %}
<member>
<Tags/>
<SuspendedProcesses/>
<AutoScalingGroupName>{{ group.name }}</AutoScalingGroupName>
<HealthCheckType>ELB</HealthCheckType>
<CreatedTime>2013-05-06T17:47:15.107Z</CreatedTime>
<EnabledMetrics/>
<LaunchConfigurationName>{{ group.launch_config_name }}</LaunchConfigurationName>
<Instances/>
<DesiredCapacity>{{ group.desired_capacity }}</DesiredCapacity>
<AvailabilityZones>
{% for availability_zone in group.availability_zones %}
<member>{{ availability_zone }}</member>
{% endfor %}
</AvailabilityZones>
<LoadBalancerNames>
<member>my-test-asg-loadbalancer</member>
</LoadBalancerNames>
<MinSize>{{ group.min_size }}</MinSize>
{% if group.vpc_zone_identifier %}
<VPCZoneIdentifier>{{ group.vpc_zone_identifier }}</VPCZoneIdentifier>
{% else %}
<VPCZoneIdentifier/>
{% endif %}
<HealthCheckGracePeriod>120</HealthCheckGracePeriod>
<DefaultCooldown>300</DefaultCooldown>
<AutoScalingGroupARN>arn:aws:autoscaling:us-east-1:803981987763:autoScalingGroup:ca861182-c8f9-4ca7-b1eb-cd35505f5ebb
:autoScalingGroupName/my-test-asg-lbs</AutoScalingGroupARN>
<TerminationPolicies>
<member>Default</member>
</TerminationPolicies>
<MaxSize>{{ group.max_size }}</MaxSize>
</member>
{% endfor %}
</AutoScalingGroups>
</DescribeAutoScalingGroupsResult>
<ResponseMetadata>
<RequestId>0f02a07d-b677-11e2-9eb0-dd50EXAMPLE</RequestId>
</ResponseMetadata>
</DescribeAutoScalingGroupsResponse>"""
UPDATE_AUTOSCALING_GROUP_TEMPLATE = """<UpdateAutoScalingGroupResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<ResponseMetadata>
<RequestId>adafead0-ab8a-11e2-ba13-ab0ccEXAMPLE</RequestId>
</ResponseMetadata>
</UpdateAutoScalingGroupResponse>"""
DELETE_AUTOSCALING_GROUP_TEMPLATE = """<DeleteAutoScalingGroupResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<ResponseMetadata>
<RequestId>70a76d42-9665-11e2-9fdf-211deEXAMPLE</RequestId>
</ResponseMetadata>
</DeleteAutoScalingGroupResponse>"""
DESCRIBE_AUTOSCALING_INSTANCES_TEMPLATE = """<DescribeAutoScalingInstancesResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<DescribeAutoScalingInstancesResult>
<AutoScalingInstances>
{% for instance in instances %}
<member>
<HealthStatus>HEALTHY</HealthStatus>
<AutoScalingGroupName>{{ instance.autoscaling_group.name }}</AutoScalingGroupName>
<AvailabilityZone>us-east-1e</AvailabilityZone>
<InstanceId>{{ instance.id }}</InstanceId>
<LaunchConfigurationName>{{ instance.autoscaling_group.launch_config_name }}</LaunchConfigurationName>
<LifecycleState>InService</LifecycleState>
</member>
{% endfor %}
</AutoScalingInstances>
</DescribeAutoScalingInstancesResult>
<ResponseMetadata>
<RequestId>df992dc3-b72f-11e2-81e1-750aa6EXAMPLE</RequestId>
</ResponseMetadata>
</DescribeAutoScalingInstancesResponse>"""
CREATE_SCALING_POLICY_TEMPLATE = """<PutScalingPolicyResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<PutScalingPolicyResult>
<PolicyARN>arn:aws:autoscaling:us-east-1:803981987763:scalingPolicy:b0dcf5e8
-02e6-4e31-9719-0675d0dc31ae:autoScalingGroupName/my-test-asg:policyName/my-scal
eout-policy</PolicyARN>
</PutScalingPolicyResult>
<ResponseMetadata>
<RequestId>3cfc6fef-c08b-11e2-a697-2922EXAMPLE</RequestId>
</ResponseMetadata>
</PutScalingPolicyResponse>"""
DESCRIBE_SCALING_POLICIES_TEMPLATE = """<DescribePoliciesResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<DescribePoliciesResult>
<ScalingPolicies>
{% for policy in policies %}
<member>
<PolicyARN>arn:aws:autoscaling:us-east-1:803981987763:scalingPolicy:c322
761b-3172-4d56-9a21-0ed9d6161d67:autoScalingGroupName/my-test-asg:policyName/MyScaleDownPolicy</PolicyARN>
<AdjustmentType>{{ policy.adjustment_type }}</AdjustmentType>
<ScalingAdjustment>{{ policy.scaling_adjustment }}</ScalingAdjustment>
<PolicyName>{{ policy.name }}</PolicyName>
<AutoScalingGroupName>{{ policy.as_name }}</AutoScalingGroupName>
<Cooldown>{{ policy.cooldown }}</Cooldown>
<Alarms/>
</member>
{% endfor %}
</ScalingPolicies>
</DescribePoliciesResult>
<ResponseMetadata>
<RequestId>ec3bffad-b739-11e2-b38d-15fbEXAMPLE</RequestId>
</ResponseMetadata>
</DescribePoliciesResponse>"""
SET_DESIRED_CAPACITY_TEMPLATE = """<SetDesiredCapacityResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<ResponseMetadata>
<RequestId>9fb7e2db-6998-11e2-a985-57c82EXAMPLE</RequestId>
</ResponseMetadata>
</SetDesiredCapacityResponse>"""
EXECUTE_POLICY_TEMPLATE = """<ExecuteScalingPolicyResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<ResponseMetadata>
<RequestId>70a76d42-9665-11e2-9fdf-211deEXAMPLE</RequestId>
</ResponseMetadata>
</ExecuteScalingPolicyResponse>"""
DELETE_POLICY_TEMPLATE = """<DeleteScalingPolicyResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<ResponseMetadata>
<RequestId>70a76d42-9665-11e2-9fdf-211deEXAMPLE</RequestId>
</ResponseMetadata>
</DeleteScalingPolicyResponse>"""

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moto/autoscaling/urls.py Normal file
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from .responses import AutoScalingResponse
url_bases = [
"https?://autoscaling.(.+).amazonaws.com",
]
url_paths = {
'{0}/$': AutoScalingResponse().dispatch,
}

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@ -1,3 +1,4 @@
from moto.autoscaling import autoscaling_backend
from moto.dynamodb import dynamodb_backend
from moto.ec2 import ec2_backend
from moto.elb import elb_backend
@ -7,6 +8,7 @@ from moto.sqs import sqs_backend
from moto.sts import sts_backend
BACKENDS = {
'autoscaling': autoscaling_backend,
'dynamodb': dynamodb_backend,
'ec2': ec2_backend,
'elb': elb_backend,

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tests/__init__.py Normal file
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tests/helpers.py Normal file
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import boto
from nose.plugins.skip import SkipTest
def version_tuple(v):
return tuple(map(int, (v.split("."))))
class requires_boto_gte(object):
"""Decorator for requiring boto version greater than or equal to 'version'"""
def __init__(self, version):
self.version = version
def __call__(self, test):
boto_version = version_tuple(boto.__version__)
required = version_tuple(self.version)
if boto_version >= required:
return test()
raise SkipTest

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import boto
from boto.ec2.autoscale.launchconfig import LaunchConfiguration
from boto.ec2.autoscale.group import AutoScalingGroup
from nose.plugins.attrib import attr
import sure # flake8: noqa
from unittest import skipIf
from moto import mock_autoscaling, mock_ec2
from tests.helpers import requires_boto_gte
@mock_autoscaling
def test_create_autoscaling_group():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
group = AutoScalingGroup(
name='tester_group',
availability_zones=['us-east-1c', 'us-east-1b'],
desired_capacity=2,
max_size=2,
min_size=2,
launch_config=config,
vpc_zone_identifier='subnet-1234abcd',
)
conn.create_auto_scaling_group(group)
group = conn.get_all_groups()[0]
group.name.should.equal('tester_group')
set(group.availability_zones).should.equal(set(['us-east-1c', 'us-east-1b']))
group.desired_capacity.should.equal(2)
group.max_size.should.equal(2)
group.min_size.should.equal(2)
group.vpc_zone_identifier.should.equal('subnet-1234abcd')
group.launch_config_name.should.equal('tester')
@mock_autoscaling
def test_create_autoscaling_groups_defaults():
""" Test with the minimum inputs and check that all of the proper defaults
are assigned for the other attributes """
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
group = AutoScalingGroup(
name='tester_group',
max_size=2,
min_size=2,
launch_config=config,
)
conn.create_auto_scaling_group(group)
group = conn.get_all_groups()[0]
group.name.should.equal('tester_group')
group.max_size.should.equal(2)
group.min_size.should.equal(2)
group.launch_config_name.should.equal('tester')
# Defaults
list(group.availability_zones).should.equal([])
group.desired_capacity.should.equal(2)
group.vpc_zone_identifier.should.equal('')
@mock_autoscaling
def test_autoscaling_group_describe_filter():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
group = AutoScalingGroup(
name='tester_group',
max_size=2,
min_size=2,
launch_config=config,
)
conn.create_auto_scaling_group(group)
group.name = 'tester_group2'
conn.create_auto_scaling_group(group)
group.name = 'tester_group3'
conn.create_auto_scaling_group(group)
conn.get_all_groups(names=['tester_group', 'tester_group2']).should.have.length_of(2)
conn.get_all_groups().should.have.length_of(3)
@mock_autoscaling
def test_autoscaling_update():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
group = AutoScalingGroup(
name='tester_group',
availability_zones=['us-east-1c', 'us-east-1b'],
desired_capacity=2,
max_size=2,
min_size=2,
launch_config=config,
vpc_zone_identifier='subnet-1234abcd',
)
conn.create_auto_scaling_group(group)
group = conn.get_all_groups()[0]
group.vpc_zone_identifier.should.equal('subnet-1234abcd')
group.vpc_zone_identifier = 'subnet-5678efgh'
group.update()
group = conn.get_all_groups()[0]
group.vpc_zone_identifier.should.equal('subnet-5678efgh')
@mock_autoscaling
def test_autoscaling_group_delete():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
group = AutoScalingGroup(
name='tester_group',
max_size=2,
min_size=2,
launch_config=config,
)
conn.create_auto_scaling_group(group)
conn.get_all_groups().should.have.length_of(1)
conn.delete_auto_scaling_group('tester_group')
conn.get_all_groups().should.have.length_of(0)
@mock_ec2
@mock_autoscaling
def test_autoscaling_group_describe_instances():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
group = AutoScalingGroup(
name='tester_group',
max_size=2,
min_size=2,
launch_config=config,
)
conn.create_auto_scaling_group(group)
instances = list(conn.get_all_autoscaling_instances())
instances.should.have.length_of(2)
instances[0].launch_config_name.should.equal('tester')
autoscale_instance_ids = [instance.instance_id for instance in instances]
ec2_conn = boto.connect_ec2()
reservations = ec2_conn.get_all_instances()
instances = reservations[0].instances
instances.should.have.length_of(2)
instance_ids = [instance.id for instance in instances]
set(autoscale_instance_ids).should.equal(set(instance_ids))
@requires_boto_gte("2.8")
@mock_autoscaling
def test_set_desired_capacity_up():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
group = AutoScalingGroup(
name='tester_group',
availability_zones=['us-east-1c', 'us-east-1b'],
desired_capacity=2,
max_size=2,
min_size=2,
launch_config=config,
vpc_zone_identifier='subnet-1234abcd',
)
conn.create_auto_scaling_group(group)
group = conn.get_all_groups()[0]
group.desired_capacity.should.equal(2)
instances = list(conn.get_all_autoscaling_instances())
instances.should.have.length_of(2)
conn.set_desired_capacity("tester_group", 3)
group = conn.get_all_groups()[0]
group.desired_capacity.should.equal(3)
instances = list(conn.get_all_autoscaling_instances())
instances.should.have.length_of(3)
@requires_boto_gte("2.8")
@mock_autoscaling
def test_set_desired_capacity_down():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
group = AutoScalingGroup(
name='tester_group',
availability_zones=['us-east-1c', 'us-east-1b'],
desired_capacity=2,
max_size=2,
min_size=2,
launch_config=config,
vpc_zone_identifier='subnet-1234abcd',
)
conn.create_auto_scaling_group(group)
group = conn.get_all_groups()[0]
group.desired_capacity.should.equal(2)
instances = list(conn.get_all_autoscaling_instances())
instances.should.have.length_of(2)
conn.set_desired_capacity("tester_group", 1)
group = conn.get_all_groups()[0]
group.desired_capacity.should.equal(1)
instances = list(conn.get_all_autoscaling_instances())
instances.should.have.length_of(1)
@requires_boto_gte("2.8")
@mock_autoscaling
def test_set_desired_capacity_the_same():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
group = AutoScalingGroup(
name='tester_group',
availability_zones=['us-east-1c', 'us-east-1b'],
desired_capacity=2,
max_size=2,
min_size=2,
launch_config=config,
vpc_zone_identifier='subnet-1234abcd',
)
conn.create_auto_scaling_group(group)
group = conn.get_all_groups()[0]
group.desired_capacity.should.equal(2)
instances = list(conn.get_all_autoscaling_instances())
instances.should.have.length_of(2)
conn.set_desired_capacity("tester_group", 2)
group = conn.get_all_groups()[0]
group.desired_capacity.should.equal(2)
instances = list(conn.get_all_autoscaling_instances())
instances.should.have.length_of(2)

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import boto
from boto.ec2.autoscale.launchconfig import LaunchConfiguration
import sure # flake8: noqa
from moto import mock_autoscaling
@mock_autoscaling
def test_create_launch_configuration():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
key_name='the_keys',
security_groups=["default", "default2"],
user_data="This is some user_data",
instance_monitoring=True,
instance_profile_name='arn:aws:iam::123456789012:instance-profile/testing',
spot_price=0.1)
conn.create_launch_configuration(config)
launch_config = conn.get_all_launch_configurations()[0]
launch_config.name.should.equal('tester')
launch_config.image_id.should.equal('ami-abcd1234')
launch_config.instance_type.should.equal('m1.small')
launch_config.key_name.should.equal('the_keys')
set(launch_config.security_groups).should.equal(set(['default', 'default2']))
launch_config.user_data.should.equal("This is some user_data")
launch_config.instance_monitoring.enabled.should.equal('true')
launch_config.instance_profile_name.should.equal('arn:aws:iam::123456789012:instance-profile/testing')
launch_config.spot_price.should.equal(0.1)
@mock_autoscaling
def test_create_launch_configuration_defaults():
""" Test with the minimum inputs and check that all of the proper defaults
are assigned for the other attributes """
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
launch_config = conn.get_all_launch_configurations()[0]
launch_config.name.should.equal('tester')
launch_config.image_id.should.equal('ami-abcd1234')
launch_config.instance_type.should.equal('m1.small')
# Defaults
launch_config.key_name.should.equal('')
list(launch_config.security_groups).should.equal([])
launch_config.user_data.should.equal("")
launch_config.instance_monitoring.enabled.should.equal('false')
launch_config.instance_profile_name.should.equal(None)
launch_config.spot_price.should.equal(None)
@mock_autoscaling
def test_launch_configuration_describe_filter():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
config.name = 'tester2'
conn.create_launch_configuration(config)
config.name = 'tester3'
conn.create_launch_configuration(config)
conn.get_all_launch_configurations(names=['tester', 'tester2']).should.have.length_of(2)
conn.get_all_launch_configurations().should.have.length_of(3)
@mock_autoscaling
def test_launch_configuration_delete():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
conn.get_all_launch_configurations().should.have.length_of(1)
conn.delete_launch_configuration('tester')
conn.get_all_launch_configurations().should.have.length_of(0)

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import boto
from boto.ec2.autoscale.launchconfig import LaunchConfiguration
from boto.ec2.autoscale.group import AutoScalingGroup
from boto.ec2.autoscale.policy import ScalingPolicy
import sure # flake8: noqa
from moto import mock_autoscaling, mock_ec2
def setup_autoscale_group():
conn = boto.connect_autoscale()
config = LaunchConfiguration(
name='tester',
image_id='ami-abcd1234',
instance_type='m1.small',
)
conn.create_launch_configuration(config)
group = AutoScalingGroup(
name='tester_group',
max_size=2,
min_size=2,
launch_config=config,
)
conn.create_auto_scaling_group(group)
return group
@mock_autoscaling
def test_create_policy():
group = setup_autoscale_group()
conn = boto.connect_autoscale()
policy = ScalingPolicy(
name='ScaleUp',
adjustment_type='ExactCapacity',
as_name='tester_group',
scaling_adjustment=3,
cooldown=60,
)
conn.create_scaling_policy(policy)
policy = conn.get_all_policies()[0]
policy.name.should.equal('ScaleUp')
policy.adjustment_type.should.equal('ExactCapacity')
policy.as_name.should.equal('tester_group')
policy.scaling_adjustment.should.equal(3)
policy.cooldown.should.equal(60)
@mock_autoscaling
def test_create_policy_default_values():
group = setup_autoscale_group()
conn = boto.connect_autoscale()
policy = ScalingPolicy(
name='ScaleUp',
adjustment_type='ExactCapacity',
as_name='tester_group',
scaling_adjustment=3,
)
conn.create_scaling_policy(policy)
policy = conn.get_all_policies()[0]
policy.name.should.equal('ScaleUp')
# Defaults
policy.cooldown.should.equal(300)
@mock_autoscaling
def test_update_policy():
group = setup_autoscale_group()
conn = boto.connect_autoscale()
policy = ScalingPolicy(
name='ScaleUp',
adjustment_type='ExactCapacity',
as_name='tester_group',
scaling_adjustment=3,
)
conn.create_scaling_policy(policy)
policy = conn.get_all_policies()[0]
policy.scaling_adjustment.should.equal(3)
# Now update it by creating another with the same name
policy = ScalingPolicy(
name='ScaleUp',
adjustment_type='ExactCapacity',
as_name='tester_group',
scaling_adjustment=2,
)
conn.create_scaling_policy(policy)
policy = conn.get_all_policies()[0]
policy.scaling_adjustment.should.equal(2)
@mock_autoscaling
def test_delete_policy():
group = setup_autoscale_group()
conn = boto.connect_autoscale()
policy = ScalingPolicy(
name='ScaleUp',
adjustment_type='ExactCapacity',
as_name='tester_group',
scaling_adjustment=3,
)
conn.create_scaling_policy(policy)
conn.get_all_policies().should.have.length_of(1)
conn.delete_policy('ScaleUp')
conn.get_all_policies().should.have.length_of(0)
@mock_autoscaling
def test_execute_policy_exact_capacity():
group = setup_autoscale_group()
conn = boto.connect_autoscale()
policy = ScalingPolicy(
name='ScaleUp',
adjustment_type='ExactCapacity',
as_name='tester_group',
scaling_adjustment=3,
)
conn.create_scaling_policy(policy)
conn.execute_policy("ScaleUp")
instances = list(conn.get_all_autoscaling_instances())
instances.should.have.length_of(3)
@mock_autoscaling
def test_execute_policy_positive_change_in_capacity():
group = setup_autoscale_group()
conn = boto.connect_autoscale()
policy = ScalingPolicy(
name='ScaleUp',
adjustment_type='ChangeInCapacity',
as_name='tester_group',
scaling_adjustment=3,
)
conn.create_scaling_policy(policy)
conn.execute_policy("ScaleUp")
instances = list(conn.get_all_autoscaling_instances())
instances.should.have.length_of(5)
@mock_autoscaling
def test_execute_policy_percent_change_in_capacity():
group = setup_autoscale_group()
conn = boto.connect_autoscale()
policy = ScalingPolicy(
name='ScaleUp',
adjustment_type='PercentChangeInCapacity',
as_name='tester_group',
scaling_adjustment=50,
)
conn.create_scaling_policy(policy)
conn.execute_policy("ScaleUp")
instances = list(conn.get_all_autoscaling_instances())
instances.should.have.length_of(3)
@mock_autoscaling
def test_execute_policy_small_percent_change_in_capacity():
""" http://docs.aws.amazon.com/AutoScaling/latest/DeveloperGuide/as-scale-based-on-demand.html
If PercentChangeInCapacity returns a value between 0 and 1,
Auto Scaling will round it off to 1."""
group = setup_autoscale_group()
conn = boto.connect_autoscale()
policy = ScalingPolicy(
name='ScaleUp',
adjustment_type='PercentChangeInCapacity',
as_name='tester_group',
scaling_adjustment=1,
)
conn.create_scaling_policy(policy)
conn.execute_policy("ScaleUp")
instances = list(conn.get_all_autoscaling_instances())
instances.should.have.length_of(3)

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import sure # flake8: noqa
import moto.server as server
'''
Test the different server responses
'''
server.configure_urls("autoscaling")
def test_describe_autoscaling_groups():
test_client = server.app.test_client()
res = test_client.get('/?Action=DescribeLaunchConfigurations')
res.data.should.contain('<DescribeLaunchConfigurationsResponse')
res.data.should.contain('<LaunchConfigurations>')