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Add attach_ and detach_instances methods to autoscaling service (#1264)

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* add detach_instances functionality to autoscaling service

* use ASG_NAME_TAG constant

* cleanup models method a bit, add mocked DetachInstancesResult to
response template

* add attach_instances method
This commit is contained in:
John Kerkstra 2017-10-16 19:09:51 -05:00 • committed by Jack Danger
commit 5ef236e966
4 changed files with 277 additions and 21 deletions
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55
moto/autoscaling/responses.py
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@ -87,6 +87,27 @@ class AutoScalingResponse(BaseResponse):
template = self.response_template(CREATE_AUTOSCALING_GROUP_TEMPLATE)
return template.render()
def attach_instances(self):
group_name = self._get_param('AutoScalingGroupName')
instance_ids = self._get_multi_param("InstanceIds.member")
self.autoscaling_backend.attach_instances(
group_name, instance_ids)
template = self.response_template(ATTACH_INSTANCES_TEMPLATE)
return template.render()
def detach_instances(self):
group_name = self._get_param('AutoScalingGroupName')
instance_ids = self._get_multi_param("InstanceIds.member")
should_decrement_string = self._get_param('ShouldDecrementDesiredCapacity')
if should_decrement_string == 'true':
should_decrement = True
else:
should_decrement = False
detached_instances = self.autoscaling_backend.detach_instances(
group_name, instance_ids, should_decrement)
template = self.response_template(DETACH_INSTANCES_TEMPLATE)
return template.render(detached_instances=detached_instances)
def describe_auto_scaling_groups(self):
names = self._get_multi_param("AutoScalingGroupNames.member")
token = self._get_param("NextToken")
@ -284,6 +305,40 @@ CREATE_AUTOSCALING_GROUP_TEMPLATE = """<CreateAutoScalingGroupResponse xmlns="ht
</ResponseMetadata>
</CreateAutoScalingGroupResponse>"""
ATTACH_INSTANCES_TEMPLATE = """<AttachInstancesResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<AttachInstancesResult>
</AttachInstancesResult>
<ResponseMetadata>
<RequestId>8d798a29-f083-11e1-bdfb-cb223EXAMPLE</RequestId>
</ResponseMetadata>
</AttachInstancesResponse>"""
DETACH_INSTANCES_TEMPLATE = """<DetachInstancesResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<DetachInstancesResult>
<Activities>
{% for instance in detached_instances %}
<member>
<ActivityId>5091cb52-547a-47ce-a236-c9ccbc2cb2c9EXAMPLE</ActivityId>
<AutoScalingGroupName>{{ group_name }}</AutoScalingGroupName>
<Cause>
At 2017-10-15T15:55:21Z instance {{ instance.instance.id }} was detached in response to a user request.
</Cause>
<Description>Detaching EC2 instance: {{ instance.instance.id }}</Description>
<StartTime>2017-10-15T15:55:21Z</StartTime>
<EndTime>2017-10-15T15:55:21Z</EndTime>
<StatusCode>InProgress</StatusCode>
<StatusMessage>InProgress</StatusMessage>
<Progress>50</Progress>
<Details>details</Details>
</member>
{% endfor %}
</Activities>
</DetachInstancesResult>
<ResponseMetadata>
<RequestId>8d798a29-f083-11e1-bdfb-cb223EXAMPLE</RequestId>
</ResponseMetadata>
</DetachInstancesResponse>"""
DESCRIBE_AUTOSCALING_GROUPS_TEMPLATE = """<DescribeAutoScalingGroupsResponse xmlns="http://autoscaling.amazonaws.com/doc/2011-01-01/">
<DescribeAutoScalingGroupsResult>
<AutoScalingGroups>