diff --git a/examples/AutoScalingMultiAZWithNotifications.py b/examples/AutoScalingMultiAZWithNotifications.py
new file mode 100755
index 000000000..3d7f6df25
--- /dev/null
+++ b/examples/AutoScalingMultiAZWithNotifications.py
@@ -0,0 +1,658 @@
+#!/usr/bin/env python
+"""
+Converted from AutoScalingMultiAZWithNotifications.template located at:
+http://aws.amazon.com/cloudformation/aws-cloudformation-templates/
+"""
+from __future__ import absolute_import, division, print_function
+
+from troposphere import (
+ autoscaling,
+ Base64,
+ cloudformation,
+ cloudwatch,
+ constants,
+ ec2,
+ FindInMap,
+ GetAtt,
+ GetAZs,
+ Join,
+ Parameter,
+ Output,
+ Ref,
+ sns,
+ Template,
+ )
+import troposphere.elasticloadbalancing as elb
+# from troposphere.autoscaling import (
+# AutoScalingGroup,
+# BlockDeviceMapping,
+# EBSBlockDevice,
+# LaunchConfiguration,
+# Tag,
+# )
+from troposphere.policies import (
+ AutoScalingRollingUpdate,
+ CreationPolicy,
+ ResourceSignal,
+ UpdatePolicy,
+ )
+
+
+def main():
+ """
+ Create a multi-az, load balanced and Auto Scaled sample web site
+ """
+
+ template = Template()
+
+ template.add_version("2010-09-09")
+
+ # Description
+ template.add_description(
+ 'AWS CloudFormation Sample Template '
+ 'AutoScalingMultiAZWithNotifications: Create a multi-az, load '
+ 'balanced and Auto Scaled sample web site running on an Apache '
+ 'Web Serever. The application is configured to '
+ 'span all Availability Zones in the region and is Auto-Scaled '
+ 'based on the CPU utilization of the web servers. Notifications '
+ 'will be sent to the operator email address on scaling events. '
+ 'The instances are load balanced with a simple health check '
+ 'against the default web page. **WARNING** This template creates '
+ 'one or more Amazon EC2 instances and an Elastic Load Balancer. '
+ 'You will be billed for the AWS resources used if you create a '
+ 'stack from this template.'
+ )
+
+ # Mappings
+ template.add_mapping(
+ 'AWSInstanceType2Arch', {
+ "t1.micro": {"Arch": "PV64"},
+ "t2.nano": {"Arch": "HVM64"},
+ "t2.micro": {"Arch": "HVM64"},
+ "t2.small": {"Arch": "HVM64"},
+ "t2.medium": {"Arch": "HVM64"},
+ "t2.large": {"Arch": "HVM64"},
+ "m1.small": {"Arch": "PV64"},
+ "m1.medium": {"Arch": "PV64"},
+ "m1.large": {"Arch": "PV64"},
+ "m1.xlarge": {"Arch": "PV64"},
+ "m2.xlarge": {"Arch": "PV64"},
+ "m2.2xlarge": {"Arch": "PV64"},
+ "m2.4xlarge": {"Arch": "PV64"},
+ "m3.medium": {"Arch": "HVM64"},
+ "m3.large": {"Arch": "HVM64"},
+ "m3.xlarge": {"Arch": "HVM64"},
+ "m3.2xlarge": {"Arch": "HVM64"},
+ "m4.large": {"Arch": "HVM64"},
+ "m4.xlarge": {"Arch": "HVM64"},
+ "m4.2xlarge": {"Arch": "HVM64"},
+ "m4.4xlarge": {"Arch": "HVM64"},
+ "m4.10xlarge": {"Arch": "HVM64"},
+ "c1.medium": {"Arch": "PV64"},
+ "c1.xlarge": {"Arch": "PV64"},
+ "c3.large": {"Arch": "HVM64"},
+ "c3.xlarge": {"Arch": "HVM64"},
+ "c3.2xlarge": {"Arch": "HVM64"},
+ "c3.4xlarge": {"Arch": "HVM64"},
+ "c3.8xlarge": {"Arch": "HVM64"},
+ "c4.large": {"Arch": "HVM64"},
+ "c4.xlarge": {"Arch": "HVM64"},
+ "c4.2xlarge": {"Arch": "HVM64"},
+ "c4.4xlarge": {"Arch": "HVM64"},
+ "c4.8xlarge": {"Arch": "HVM64"},
+ "g2.2xlarge": {"Arch": "HVMG2"},
+ "g2.8xlarge": {"Arch": "HVMG2"},
+ "r3.large": {"Arch": "HVM64"},
+ "r3.xlarge": {"Arch": "HVM64"},
+ "r3.2xlarge": {"Arch": "HVM64"},
+ "r3.4xlarge": {"Arch": "HVM64"},
+ "r3.8xlarge": {"Arch": "HVM64"},
+ "i2.xlarge": {"Arch": "HVM64"},
+ "i2.2xlarge": {"Arch": "HVM64"},
+ "i2.4xlarge": {"Arch": "HVM64"},
+ "i2.8xlarge": {"Arch": "HVM64"},
+ "d2.xlarge": {"Arch": "HVM64"},
+ "d2.2xlarge": {"Arch": "HVM64"},
+ "d2.4xlarge": {"Arch": "HVM64"},
+ "d2.8xlarge": {"Arch": "HVM64"},
+ "hi1.4xlarge": {"Arch": "HVM64"},
+ "hs1.8xlarge": {"Arch": "HVM64"},
+ "cr1.8xlarge": {"Arch": "HVM64"},
+ "cc2.8xlarge": {"Arch": "HVM64"},
+ }
+ )
+
+ template.add_mapping(
+ "AWSInstanceType2NATArch", {
+ "t1.micro": {"Arch": "NATPV64"},
+ "t2.nano": {"Arch": "NATHVM64"},
+ "t2.micro": {"Arch": "NATHVM64"},
+ "t2.small": {"Arch": "NATHVM64"},
+ "t2.medium": {"Arch": "NATHVM64"},
+ "t2.large": {"Arch": "NATHVM64"},
+ "m1.small": {"Arch": "NATPV64"},
+ "m1.medium": {"Arch": "NATPV64"},
+ "m1.large": {"Arch": "NATPV64"},
+ "m1.xlarge": {"Arch": "NATPV64"},
+ "m2.xlarge": {"Arch": "NATPV64"},
+ "m2.2xlarge": {"Arch": "NATPV64"},
+ "m2.4xlarge": {"Arch": "NATPV64"},
+ "m3.medium": {"Arch": "NATHVM64"},
+ "m3.large": {"Arch": "NATHVM64"},
+ "m3.xlarge": {"Arch": "NATHVM64"},
+ "m3.2xlarge": {"Arch": "NATHVM64"},
+ "m4.large": {"Arch": "NATHVM64"},
+ "m4.xlarge": {"Arch": "NATHVM64"},
+ "m4.2xlarge": {"Arch": "NATHVM64"},
+ "m4.4xlarge": {"Arch": "NATHVM64"},
+ "m4.10xlarge": {"Arch": "NATHVM64"},
+ "c1.medium": {"Arch": "NATPV64"},
+ "c1.xlarge": {"Arch": "NATPV64"},
+ "c3.large": {"Arch": "NATHVM64"},
+ "c3.xlarge": {"Arch": "NATHVM64"},
+ "c3.2xlarge": {"Arch": "NATHVM64"},
+ "c3.4xlarge": {"Arch": "NATHVM64"},
+ "c3.8xlarge": {"Arch": "NATHVM64"},
+ "c4.large": {"Arch": "NATHVM64"},
+ "c4.xlarge": {"Arch": "NATHVM64"},
+ "c4.2xlarge": {"Arch": "NATHVM64"},
+ "c4.4xlarge": {"Arch": "NATHVM64"},
+ "c4.8xlarge": {"Arch": "NATHVM64"},
+ "g2.2xlarge": {"Arch": "NATHVMG2"},
+ "g2.8xlarge": {"Arch": "NATHVMG2"},
+ "r3.large": {"Arch": "NATHVM64"},
+ "r3.xlarge": {"Arch": "NATHVM64"},
+ "r3.2xlarge": {"Arch": "NATHVM64"},
+ "r3.4xlarge": {"Arch": "NATHVM64"},
+ "r3.8xlarge": {"Arch": "NATHVM64"},
+ "i2.xlarge": {"Arch": "NATHVM64"},
+ "i2.2xlarge": {"Arch": "NATHVM64"},
+ "i2.4xlarge": {"Arch": "NATHVM64"},
+ "i2.8xlarge": {"Arch": "NATHVM64"},
+ "d2.xlarge": {"Arch": "NATHVM64"},
+ "d2.2xlarge": {"Arch": "NATHVM64"},
+ "d2.4xlarge": {"Arch": "NATHVM64"},
+ "d2.8xlarge": {"Arch": "NATHVM64"},
+ "hi1.4xlarge": {"Arch": "NATHVM64"},
+ "hs1.8xlarge": {"Arch": "NATHVM64"},
+ "cr1.8xlarge": {"Arch": "NATHVM64"},
+ "cc2.8xlarge": {"Arch": "NATHVM64"},
+ }
+ )
+
+ template.add_mapping(
+ "AWSRegionArch2AMI", {
+ "us-east-1": {
+ "PV64": "ami-22111148",
+ "HVM64": "ami-08111162",
+ "HVMG2": "ami-ebcec381",
+ },
+ "us-west-2": {
+ "PV64": "ami-792bc219",
+ "HVM64": "ami-c229c0a2",
+ "HVMG2": "ami-0f28c06f",
+ },
+ "us-west-1": {
+ "PV64": "ami-0e087a6e",
+ "HVM64": "ami-1b0f7d7b",
+ "HVMG2": "ami-ab9defcb"
+ },
+ "eu-west-1": {
+ "PV64": "ami-a5368cd6",
+ "HVM64": "ami-31328842",
+ "HVMG2": "ami-d1d652a2"
+ },
+ "eu-central-1": {
+ "PV64": "ami-2bde3944",
+ "HVM64": "ami-e2df388d",
+ "HVMG2": "ami-5240a73d"
+ },
+ "ap-northeast-1": {
+ "PV64": "ami-37020959",
+ "HVM64": "ami-f80e0596",
+ "HVMG2": "ami-34a9a35a"
+ },
+ "ap-northeast-2": {
+ "PV64": "NOT_SUPPORTED",
+ "HVM64": "ami-6598510b",
+ "HVMG2": "NOT_SUPPORTED"
+ },
+ "ap-southeast-1": {
+ "PV64": "ami-ff0cc79c",
+ "HVM64": "ami-e90dc68a",
+ "HVMG2": "ami-6f6ca70c"
+ },
+ "ap-southeast-2": {
+ "PV64": "ami-f5210196",
+ "HVM64": "ami-f2210191",
+ "HVMG2": "ami-88c1e1eb"
+ },
+ "sa-east-1": {
+ "PV64": "ami-661e930a",
+ "HVM64": "ami-1e159872",
+ "HVMG2": "NOT_SUPPORTED"
+ },
+ "cn-north-1": {
+ "PV64": "ami-08ef2465",
+ "HVM64": "ami-49e22924",
+ "HVMG2": "NOT_SUPPORTED"
+ },
+ }
+ )
+
+ # This craziness is needed to pass pep8 line lengths of <79
+ regions = [
+ 'us-east-1',
+ 'us-west-2',
+ 'us-west-1',
+ 'eu-west-1',
+ 'sa-east-1',
+ 'eu-central-1',
+ 'ap-southeast-1',
+ 'ap-northeast-1',
+ 'ap-northeast-2',
+ 'ap-southeast-2',
+ 'cn-north-1',
+ ]
+ example_map = {}
+ for a_region in regions:
+ if a_region == 'us-east-1':
+ example_prefix = ('https://s3.amazonaws.com/cloudformat'
+ 'ion-examples-')
+ elif a_region == 'cn-north-1':
+ example_prefix = ('https://s3.cn-north-1.amazonaws.com.cn/cloudfo'
+ 'rmation-examples-')
+ else:
+ example_prefix = 'https://s3-' + \
+ a_region + \
+ '.amazonaws.com/cloudformation-examples-'
+ example_map[a_region] = {
+ "Examples": example_prefix + a_region
+ }
+ template.add_mapping(
+ "Region2Examples", example_map
+ )
+
+ # Parameters
+
+ allowedinstancetype = [
+ "t1.micro",
+ "t2.nano",
+ "t2.micro",
+ "t2.small",
+ "t2.medium",
+ "t2.large",
+ "m1.small",
+ "m1.medium",
+ "m1.large",
+ "m1.xlarge",
+ "m2.xlarge",
+ "m2.2xlarge",
+ "m2.4xlarge",
+ "m3.medium",
+ "m3.large",
+ "m3.xlarge",
+ "m3.2xlarge",
+ "m4.large",
+ "m4.xlarge",
+ "m4.2xlarge",
+ "m4.4xlarge",
+ "m4.10xlarge",
+ "c1.medium",
+ "c1.xlarge",
+ "c3.large",
+ "c3.xlarge",
+ "c3.2xlarge",
+ "c3.4xlarge",
+ "c3.8xlarge",
+ "c4.large",
+ "c4.xlarge",
+ "c4.2xlarge",
+ "c4.4xlarge",
+ "c4.8xlarge",
+ "g2.2xlarge",
+ "g2.8xlarge",
+ "r3.large",
+ "r3.xlarge",
+ "r3.2xlarge",
+ "r3.4xlarge",
+ "r3.8xlarge",
+ "i2.xlarge",
+ "i2.2xlarge",
+ "i2.4xlarge",
+ "i2.8xlarge",
+ "d2.xlarge",
+ "d2.2xlarge",
+ "d2.4xlarge",
+ "d2.8xlarge",
+ "hi1.4xlarge",
+ "hs1.8xlarge",
+ "cr1.8xlarge",
+ "cc2.8xlarge",
+ "cg1.4xlarge",
+ ]
+
+ instancetype = template.add_parameter(Parameter(
+ 'InstanceType',
+ Description='WebServer EC2 instance type',
+ Type='String',
+ Default='t2.small',
+ AllowedValues=allowedinstancetype,
+ ConstraintDescription='must be a valid EC2 instance type.',
+ ))
+
+ keyname = template.add_parameter(Parameter(
+ 'KeyName',
+ Description='The EC2 Key Pair to allow SSH access to the instances',
+ Type='AWS::EC2::KeyPair::KeyName',
+ ConstraintDescription='must be the name of an existing EC2 KeyPair.',
+ ))
+
+ operatoremail = template.add_parameter(Parameter(
+ 'OperatorEMail',
+ AllowedPattern=(
+ '([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.'
+ '[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9'
+ '\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)'
+ ),
+ ConstraintDescription="must be a valid email address.",
+ Description=("EMail address to notify if there are any scaling "
+ "operations"),
+ Type=constants.STRING,
+ ))
+
+ sshlocation = template.add_parameter(Parameter(
+ 'SSHLocation',
+ Description='The IP address range that can be used to SSH to'
+ ' the EC2 instances',
+ Type='String',
+ MinLength='9',
+ MaxLength='18',
+ Default='0.0.0.0/0',
+ AllowedPattern=(
+ '(\\d{1,3})\\.(\\d{1,3})\\.'
+ '(\\d{1,3})\\.(\\d{1,3})/(\\d{1,2})'
+ ),
+ ConstraintDescription='must be a valid IP CIDR range of the'
+ ' form x.x.x.x/x.'
+ ))
+
+ # Resources
+
+ r_elb = template.add_resource(
+ elb.LoadBalancer(
+ 'ElasticLoadBalancer',
+ AvailabilityZones=GetAZs(''),
+ CrossZone=True,
+ HealthCheck=elb.HealthCheck(
+ HealthyThreshold='3',
+ Interval='30',
+ Target='HTTP:80/',
+ Timeout='5',
+ UnhealthyThreshold='5',
+ ),
+ Listeners=[
+ elb.Listener(
+ InstancePort='80',
+ LoadBalancerPort='80',
+ Protocol='HTTP',
+ )
+ ],
+ )
+ )
+
+ r_snstopic = template.add_resource(
+ sns.Topic(
+ 'NotificationTopic',
+ Subscription=[
+ sns.Subscription(
+ 'NotificationSubscription',
+ Endpoint=Ref(operatoremail),
+ Protocol='email',
+ )
+ ]
+ )
+ )
+
+ webserversg = template.add_resource(ec2.SecurityGroup(
+ 'InstanceSecurityGroup',
+ GroupDescription=('Enable SSH access and HTTP from '
+ 'the load balancer only'),
+ SecurityGroupIngress=[
+ ec2.SecurityGroupRule(
+ IpProtocol='tcp',
+ FromPort='22',
+ ToPort='22',
+ CidrIp=Ref(sshlocation),
+ ),
+ ec2.SecurityGroupRule(
+ IpProtocol='tcp',
+ FromPort='80',
+ ToPort='80',
+ SourceSecurityGroupName=GetAtt(
+ r_elb,
+ 'SourceSecurityGroup.GroupName',
+ ),
+ SourceSecurityGroupOwnerId=GetAtt(
+ r_elb,
+ 'SourceSecurityGroup.OwnerAlias',
+ ),
+ )
+ ]
+ ))
+
+ cfn_init = [
+ '[cfn-auto-reloader-hook]\n',
+ 'triggers=post.update\n',
+ 'path=Resources.LaunchConfig.Metadata'
+ '.AWS::CloudFormation::Init\n',
+ 'action=/opt/aws/bin/cfn-init -v ',
+ ' --stack ', Ref('AWS::StackName'),
+ ' --resource LaunchConfig ',
+ ' --region ', Ref('AWS::Region'),
+ '\n',
+ 'runas=root\n'
+ ]
+
+ r_launchconfig = template.add_resource(
+ autoscaling.LaunchConfiguration(
+ 'LaunchConfig',
+ Metadata=cloudformation.Metadata(
+ cloudformation.Init({
+ 'config': cloudformation.InitConfig(
+ packages={
+ 'yum': {
+ 'httpd': [],
+ }
+ },
+
+ files=cloudformation.InitFiles({
+ ('/var/www/html'
+ '/index.html'): cloudformation.InitFile(
+ content=Join('\n', [
+ "![](\"",)
'),
+ ('Congratulations, you have '
+ 'successfully launched the AWS '
+ 'CloudFormation sample.
'),
+ ]),
+ mode='000644',
+ owner='root',
+ group='root'
+ ),
+
+ '/etc/cfn/cfn-hup.conf': cloudformation.InitFile(
+ content=Join('', [
+ '[main]\n',
+ 'stack=', Ref('AWS::StackId'), '\n',
+ 'region=', Ref('AWS::Region'), '\n'
+ ]),
+ mode='000400',
+ owner='root',
+ group='root'
+ ),
+ '/etc/cfn/hooks.d/cfn-auto-reloader.conf':
+ cloudformation.InitFile(
+ content=Join('', cfn_init)
+ # Why doesn't the template have this?
+ # mode='000400',
+ # owner='root',
+ # group='root'
+ ),
+ }),
+ services={
+ "sysvinit": cloudformation.InitServices({
+ "httpd": cloudformation.InitService(
+ enabled=True,
+ ensureRunning=True,
+ ),
+ "cfn-hup": cloudformation.InitService(
+ enabled=True,
+ ensureRunning=True,
+ files=['/etc/cfn/cfn-hup.conf',
+ '/etc/cfn/hooks.d/'
+ 'cfn-auto-reloader.conf']
+ ),
+ }),
+ },
+ ),
+ }),
+ cloudformation.Comment('Install a simple application'),
+ ),
+ ImageId=FindInMap('AWSRegionArch2AMI', Ref('AWS::Region'),
+ FindInMap('AWSInstanceType2Arch',
+ Ref(instancetype), 'Arch')),
+ InstanceType=Ref(instancetype),
+ SecurityGroups=[Ref(webserversg)],
+ KeyName=Ref(keyname),
+ UserData=Base64(Join('', [
+ '#!/bin/bash -xe\n',
+ 'yum update -y aws-cfn-bootstrap\n',
+
+ '/opt/aws/bin/cfn-init -v ',
+ ' --stack ', Ref('AWS::StackName'),
+ # resource is name of this LaunchConfig
+ ' --resource LaunchConfig ',
+ ' --region ', Ref('AWS::Region'), '\n',
+
+ '/opt/aws/bin/cfn-signal -e $? ',
+ ' --stack ', Ref('AWS::StackName'),
+ # resource is name of r_webservergroup variable
+ ' --resource WebServerGroup ',
+ ' --region ', Ref('AWS::Region'), '\n'
+ ])),
+ ))
+
+ r_webservergroup = template.add_resource(autoscaling.AutoScalingGroup(
+ 'WebServerGroup',
+ AvailabilityZones=GetAZs(''),
+ CreationPolicy=CreationPolicy(
+ ResourceSignal=ResourceSignal(
+ Count='1',
+ Timeout='PT15M',
+ )
+ ),
+ LaunchConfigurationName=Ref(r_launchconfig),
+ LoadBalancerNames=[Ref(r_elb)],
+ MinSize='1',
+ MaxSize='3',
+ NotificationConfigurations=[
+ autoscaling.NotificationConfigurations(
+ 'NotificationConfiguration',
+ NotificationTypes=[
+ "autoscaling:EC2_INSTANCE_LAUNCH",
+ "autoscaling:EC2_INSTANCE_LAUNCH_ERROR",
+ "autoscaling:EC2_INSTANCE_TERMINATE",
+ "autoscaling:EC2_INSTANCE_TERMINATE_ERROR"
+ ],
+ TopicARN=Ref(r_snstopic),
+ ),
+ ],
+ UpdatePolicy=UpdatePolicy(
+ AutoScalingRollingUpdate=AutoScalingRollingUpdate(
+ PauseTime='PT15M',
+ MinInstancesInService="1",
+ MaxBatchSize='1',
+ WaitOnResourceSignals=True
+ )
+ )
+ ))
+
+ webservscaleup_policy = template.add_resource(autoscaling.ScalingPolicy(
+ "WebServerScaleUpPolicy",
+ AdjustmentType='ChangeInCapacity',
+ AutoScalingGroupName=Ref(r_webservergroup),
+ Cooldown='60',
+ ScalingAdjustment='1',
+ ))
+
+ webservscaledown_policy = template.add_resource(autoscaling.ScalingPolicy(
+ "WebServerScaleDownPolicy",
+ AdjustmentType='ChangeInCapacity',
+ AutoScalingGroupName=Ref(r_webservergroup),
+ Cooldown='60',
+ ScalingAdjustment='-1',
+ ))
+
+ template.add_resource(
+ cloudwatch.Alarm(
+ 'CPUAlarmHigh',
+ AlarmActions=[Ref(webservscaleup_policy)],
+ AlarmDescription='Scale-up if CPU > 90% for 10 minutes',
+ ComparisonOperator='GreaterThanThreshold',
+ Dimensions=[cloudwatch.MetricDimension(
+ Name='AutoScalingGroupName',
+ Value=Ref(r_webservergroup),
+ )],
+ EvaluationPeriods='2',
+ MetricName='CPUUtilization',
+ Namespace='AWS/EC2',
+ Period='300',
+ Statistic='Average',
+ Threshold='90',
+ )
+ )
+
+ template.add_resource(
+ cloudwatch.Alarm(
+ 'CPUAlarmLow',
+ AlarmActions=[Ref(webservscaledown_policy)],
+ AlarmDescription='Scale-down if CPU < 70% for 10 minutes',
+ ComparisonOperator='LessThanThreshold',
+ Dimensions=[cloudwatch.MetricDimension(
+ Name='AutoScalingGroupName',
+ Value=Ref(r_webservergroup),
+ )],
+ EvaluationPeriods='2',
+ MetricName='CPUUtilization',
+ Namespace='AWS/EC2',
+ Period='300',
+ Statistic='Average',
+ Threshold='70',
+ )
+ )
+
+ # Outputs
+ template.add_output([
+ Output(
+ 'URL',
+ Description='The URL of the website',
+ Value=Join('', [
+ 'http://',
+ GetAtt(r_elb, 'DNSName'),
+ ])
+ )
+ ])
+
+ # Print CloudFormation Template
+ print(template.to_json())
+
+
+if __name__ == '__main__':
+ main()
diff --git a/tests/examples_output/AutoScalingMultiAZWithNotifications.template b/tests/examples_output/AutoScalingMultiAZWithNotifications.template
new file mode 100644
index 000000000..1243e4574
--- /dev/null
+++ b/tests/examples_output/AutoScalingMultiAZWithNotifications.template
@@ -0,0 +1,880 @@
+{
+ "AWSTemplateFormatVersion": "2010-09-09",
+ "Description": "AWS CloudFormation Sample Template AutoScalingMultiAZWithNotifications: Create a multi-az, load balanced and Auto Scaled sample web site running on an Apache Web Serever. The application is configured to span all Availability Zones in the region and is Auto-Scaled based on the CPU utilization of the web servers. Notifications will be sent to the operator email address on scaling events. The instances are load balanced with a simple health check against the default web page. **WARNING** This template creates one or more Amazon EC2 instances and an Elastic Load Balancer. You will be billed for the AWS resources used if you create a stack from this template.",
+ "Mappings": {
+ "AWSInstanceType2Arch": {
+ "c1.medium": {
+ "Arch": "PV64"
+ },
+ "c1.xlarge": {
+ "Arch": "PV64"
+ },
+ "c3.2xlarge": {
+ "Arch": "HVM64"
+ },
+ "c3.4xlarge": {
+ "Arch": "HVM64"
+ },
+ "c3.8xlarge": {
+ "Arch": "HVM64"
+ },
+ "c3.large": {
+ "Arch": "HVM64"
+ },
+ "c3.xlarge": {
+ "Arch": "HVM64"
+ },
+ "c4.2xlarge": {
+ "Arch": "HVM64"
+ },
+ "c4.4xlarge": {
+ "Arch": "HVM64"
+ },
+ "c4.8xlarge": {
+ "Arch": "HVM64"
+ },
+ "c4.large": {
+ "Arch": "HVM64"
+ },
+ "c4.xlarge": {
+ "Arch": "HVM64"
+ },
+ "cc2.8xlarge": {
+ "Arch": "HVM64"
+ },
+ "cr1.8xlarge": {
+ "Arch": "HVM64"
+ },
+ "d2.2xlarge": {
+ "Arch": "HVM64"
+ },
+ "d2.4xlarge": {
+ "Arch": "HVM64"
+ },
+ "d2.8xlarge": {
+ "Arch": "HVM64"
+ },
+ "d2.xlarge": {
+ "Arch": "HVM64"
+ },
+ "g2.2xlarge": {
+ "Arch": "HVMG2"
+ },
+ "g2.8xlarge": {
+ "Arch": "HVMG2"
+ },
+ "hi1.4xlarge": {
+ "Arch": "HVM64"
+ },
+ "hs1.8xlarge": {
+ "Arch": "HVM64"
+ },
+ "i2.2xlarge": {
+ "Arch": "HVM64"
+ },
+ "i2.4xlarge": {
+ "Arch": "HVM64"
+ },
+ "i2.8xlarge": {
+ "Arch": "HVM64"
+ },
+ "i2.xlarge": {
+ "Arch": "HVM64"
+ },
+ "m1.large": {
+ "Arch": "PV64"
+ },
+ "m1.medium": {
+ "Arch": "PV64"
+ },
+ "m1.small": {
+ "Arch": "PV64"
+ },
+ "m1.xlarge": {
+ "Arch": "PV64"
+ },
+ "m2.2xlarge": {
+ "Arch": "PV64"
+ },
+ "m2.4xlarge": {
+ "Arch": "PV64"
+ },
+ "m2.xlarge": {
+ "Arch": "PV64"
+ },
+ "m3.2xlarge": {
+ "Arch": "HVM64"
+ },
+ "m3.large": {
+ "Arch": "HVM64"
+ },
+ "m3.medium": {
+ "Arch": "HVM64"
+ },
+ "m3.xlarge": {
+ "Arch": "HVM64"
+ },
+ "m4.10xlarge": {
+ "Arch": "HVM64"
+ },
+ "m4.2xlarge": {
+ "Arch": "HVM64"
+ },
+ "m4.4xlarge": {
+ "Arch": "HVM64"
+ },
+ "m4.large": {
+ "Arch": "HVM64"
+ },
+ "m4.xlarge": {
+ "Arch": "HVM64"
+ },
+ "r3.2xlarge": {
+ "Arch": "HVM64"
+ },
+ "r3.4xlarge": {
+ "Arch": "HVM64"
+ },
+ "r3.8xlarge": {
+ "Arch": "HVM64"
+ },
+ "r3.large": {
+ "Arch": "HVM64"
+ },
+ "r3.xlarge": {
+ "Arch": "HVM64"
+ },
+ "t1.micro": {
+ "Arch": "PV64"
+ },
+ "t2.large": {
+ "Arch": "HVM64"
+ },
+ "t2.medium": {
+ "Arch": "HVM64"
+ },
+ "t2.micro": {
+ "Arch": "HVM64"
+ },
+ "t2.nano": {
+ "Arch": "HVM64"
+ },
+ "t2.small": {
+ "Arch": "HVM64"
+ }
+ },
+ "AWSInstanceType2NATArch": {
+ "c1.medium": {
+ "Arch": "NATPV64"
+ },
+ "c1.xlarge": {
+ "Arch": "NATPV64"
+ },
+ "c3.2xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "c3.4xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "c3.8xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "c3.large": {
+ "Arch": "NATHVM64"
+ },
+ "c3.xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "c4.2xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "c4.4xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "c4.8xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "c4.large": {
+ "Arch": "NATHVM64"
+ },
+ "c4.xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "cc2.8xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "cr1.8xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "d2.2xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "d2.4xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "d2.8xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "d2.xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "g2.2xlarge": {
+ "Arch": "NATHVMG2"
+ },
+ "g2.8xlarge": {
+ "Arch": "NATHVMG2"
+ },
+ "hi1.4xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "hs1.8xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "i2.2xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "i2.4xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "i2.8xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "i2.xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "m1.large": {
+ "Arch": "NATPV64"
+ },
+ "m1.medium": {
+ "Arch": "NATPV64"
+ },
+ "m1.small": {
+ "Arch": "NATPV64"
+ },
+ "m1.xlarge": {
+ "Arch": "NATPV64"
+ },
+ "m2.2xlarge": {
+ "Arch": "NATPV64"
+ },
+ "m2.4xlarge": {
+ "Arch": "NATPV64"
+ },
+ "m2.xlarge": {
+ "Arch": "NATPV64"
+ },
+ "m3.2xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "m3.large": {
+ "Arch": "NATHVM64"
+ },
+ "m3.medium": {
+ "Arch": "NATHVM64"
+ },
+ "m3.xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "m4.10xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "m4.2xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "m4.4xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "m4.large": {
+ "Arch": "NATHVM64"
+ },
+ "m4.xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "r3.2xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "r3.4xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "r3.8xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "r3.large": {
+ "Arch": "NATHVM64"
+ },
+ "r3.xlarge": {
+ "Arch": "NATHVM64"
+ },
+ "t1.micro": {
+ "Arch": "NATPV64"
+ },
+ "t2.large": {
+ "Arch": "NATHVM64"
+ },
+ "t2.medium": {
+ "Arch": "NATHVM64"
+ },
+ "t2.micro": {
+ "Arch": "NATHVM64"
+ },
+ "t2.nano": {
+ "Arch": "NATHVM64"
+ },
+ "t2.small": {
+ "Arch": "NATHVM64"
+ }
+ },
+ "AWSRegionArch2AMI": {
+ "ap-northeast-1": {
+ "HVM64": "ami-f80e0596",
+ "HVMG2": "ami-34a9a35a",
+ "PV64": "ami-37020959"
+ },
+ "ap-northeast-2": {
+ "HVM64": "ami-6598510b",
+ "HVMG2": "NOT_SUPPORTED",
+ "PV64": "NOT_SUPPORTED"
+ },
+ "ap-southeast-1": {
+ "HVM64": "ami-e90dc68a",
+ "HVMG2": "ami-6f6ca70c",
+ "PV64": "ami-ff0cc79c"
+ },
+ "ap-southeast-2": {
+ "HVM64": "ami-f2210191",
+ "HVMG2": "ami-88c1e1eb",
+ "PV64": "ami-f5210196"
+ },
+ "cn-north-1": {
+ "HVM64": "ami-49e22924",
+ "HVMG2": "NOT_SUPPORTED",
+ "PV64": "ami-08ef2465"
+ },
+ "eu-central-1": {
+ "HVM64": "ami-e2df388d",
+ "HVMG2": "ami-5240a73d",
+ "PV64": "ami-2bde3944"
+ },
+ "eu-west-1": {
+ "HVM64": "ami-31328842",
+ "HVMG2": "ami-d1d652a2",
+ "PV64": "ami-a5368cd6"
+ },
+ "sa-east-1": {
+ "HVM64": "ami-1e159872",
+ "HVMG2": "NOT_SUPPORTED",
+ "PV64": "ami-661e930a"
+ },
+ "us-east-1": {
+ "HVM64": "ami-08111162",
+ "HVMG2": "ami-ebcec381",
+ "PV64": "ami-22111148"
+ },
+ "us-west-1": {
+ "HVM64": "ami-1b0f7d7b",
+ "HVMG2": "ami-ab9defcb",
+ "PV64": "ami-0e087a6e"
+ },
+ "us-west-2": {
+ "HVM64": "ami-c229c0a2",
+ "HVMG2": "ami-0f28c06f",
+ "PV64": "ami-792bc219"
+ }
+ },
+ "Region2Examples": {
+ "ap-northeast-1": {
+ "Examples": "https://s3-ap-northeast-1.amazonaws.com/cloudformation-examples-ap-northeast-1"
+ },
+ "ap-northeast-2": {
+ "Examples": "https://s3-ap-northeast-2.amazonaws.com/cloudformation-examples-ap-northeast-2"
+ },
+ "ap-southeast-1": {
+ "Examples": "https://s3-ap-southeast-1.amazonaws.com/cloudformation-examples-ap-southeast-1"
+ },
+ "ap-southeast-2": {
+ "Examples": "https://s3-ap-southeast-2.amazonaws.com/cloudformation-examples-ap-southeast-2"
+ },
+ "cn-north-1": {
+ "Examples": "https://s3.cn-north-1.amazonaws.com.cn/cloudformation-examples-cn-north-1"
+ },
+ "eu-central-1": {
+ "Examples": "https://s3-eu-central-1.amazonaws.com/cloudformation-examples-eu-central-1"
+ },
+ "eu-west-1": {
+ "Examples": "https://s3-eu-west-1.amazonaws.com/cloudformation-examples-eu-west-1"
+ },
+ "sa-east-1": {
+ "Examples": "https://s3-sa-east-1.amazonaws.com/cloudformation-examples-sa-east-1"
+ },
+ "us-east-1": {
+ "Examples": "https://s3.amazonaws.com/cloudformation-examples-us-east-1"
+ },
+ "us-west-1": {
+ "Examples": "https://s3-us-west-1.amazonaws.com/cloudformation-examples-us-west-1"
+ },
+ "us-west-2": {
+ "Examples": "https://s3-us-west-2.amazonaws.com/cloudformation-examples-us-west-2"
+ }
+ }
+ },
+ "Outputs": {
+ "URL": {
+ "Description": "The URL of the website",
+ "Value": {
+ "Fn::Join": [
+ "",
+ [
+ "http://",
+ {
+ "Fn::GetAtt": [
+ "ElasticLoadBalancer",
+ "DNSName"
+ ]
+ }
+ ]
+ ]
+ }
+ }
+ },
+ "Parameters": {
+ "InstanceType": {
+ "AllowedValues": [
+ "t1.micro",
+ "t2.nano",
+ "t2.micro",
+ "t2.small",
+ "t2.medium",
+ "t2.large",
+ "m1.small",
+ "m1.medium",
+ "m1.large",
+ "m1.xlarge",
+ "m2.xlarge",
+ "m2.2xlarge",
+ "m2.4xlarge",
+ "m3.medium",
+ "m3.large",
+ "m3.xlarge",
+ "m3.2xlarge",
+ "m4.large",
+ "m4.xlarge",
+ "m4.2xlarge",
+ "m4.4xlarge",
+ "m4.10xlarge",
+ "c1.medium",
+ "c1.xlarge",
+ "c3.large",
+ "c3.xlarge",
+ "c3.2xlarge",
+ "c3.4xlarge",
+ "c3.8xlarge",
+ "c4.large",
+ "c4.xlarge",
+ "c4.2xlarge",
+ "c4.4xlarge",
+ "c4.8xlarge",
+ "g2.2xlarge",
+ "g2.8xlarge",
+ "r3.large",
+ "r3.xlarge",
+ "r3.2xlarge",
+ "r3.4xlarge",
+ "r3.8xlarge",
+ "i2.xlarge",
+ "i2.2xlarge",
+ "i2.4xlarge",
+ "i2.8xlarge",
+ "d2.xlarge",
+ "d2.2xlarge",
+ "d2.4xlarge",
+ "d2.8xlarge",
+ "hi1.4xlarge",
+ "hs1.8xlarge",
+ "cr1.8xlarge",
+ "cc2.8xlarge",
+ "cg1.4xlarge"
+ ],
+ "ConstraintDescription": "must be a valid EC2 instance type.",
+ "Default": "t2.small",
+ "Description": "WebServer EC2 instance type",
+ "Type": "String"
+ },
+ "KeyName": {
+ "ConstraintDescription": "must be the name of an existing EC2 KeyPair.",
+ "Description": "The EC2 Key Pair to allow SSH access to the instances",
+ "Type": "AWS::EC2::KeyPair::KeyName"
+ },
+ "OperatorEMail": {
+ "AllowedPattern": "([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)",
+ "ConstraintDescription": "must be a valid email address.",
+ "Description": "EMail address to notify if there are any scaling operations",
+ "Type": "String"
+ },
+ "SSHLocation": {
+ "AllowedPattern": "(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})\\.(\\d{1,3})/(\\d{1,2})",
+ "ConstraintDescription": "must be a valid IP CIDR range of the form x.x.x.x/x.",
+ "Default": "0.0.0.0/0",
+ "Description": "The IP address range that can be used to SSH to the EC2 instances",
+ "MaxLength": "18",
+ "MinLength": "9",
+ "Type": "String"
+ }
+ },
+ "Resources": {
+ "CPUAlarmHigh": {
+ "Properties": {
+ "AlarmActions": [
+ {
+ "Ref": "WebServerScaleUpPolicy"
+ }
+ ],
+ "AlarmDescription": "Scale-up if CPU > 90% for 10 minutes",
+ "ComparisonOperator": "GreaterThanThreshold",
+ "Dimensions": [
+ {
+ "Name": "AutoScalingGroupName",
+ "Value": {
+ "Ref": "WebServerGroup"
+ }
+ }
+ ],
+ "EvaluationPeriods": "2",
+ "MetricName": "CPUUtilization",
+ "Namespace": "AWS/EC2",
+ "Period": "300",
+ "Statistic": "Average",
+ "Threshold": "90"
+ },
+ "Type": "AWS::CloudWatch::Alarm"
+ },
+ "CPUAlarmLow": {
+ "Properties": {
+ "AlarmActions": [
+ {
+ "Ref": "WebServerScaleDownPolicy"
+ }
+ ],
+ "AlarmDescription": "Scale-down if CPU < 70% for 10 minutes",
+ "ComparisonOperator": "LessThanThreshold",
+ "Dimensions": [
+ {
+ "Name": "AutoScalingGroupName",
+ "Value": {
+ "Ref": "WebServerGroup"
+ }
+ }
+ ],
+ "EvaluationPeriods": "2",
+ "MetricName": "CPUUtilization",
+ "Namespace": "AWS/EC2",
+ "Period": "300",
+ "Statistic": "Average",
+ "Threshold": "70"
+ },
+ "Type": "AWS::CloudWatch::Alarm"
+ },
+ "ElasticLoadBalancer": {
+ "Properties": {
+ "AvailabilityZones": {
+ "Fn::GetAZs": ""
+ },
+ "CrossZone": "true",
+ "HealthCheck": {
+ "HealthyThreshold": "3",
+ "Interval": "30",
+ "Target": "HTTP:80/",
+ "Timeout": "5",
+ "UnhealthyThreshold": "5"
+ },
+ "Listeners": [
+ {
+ "InstancePort": "80",
+ "LoadBalancerPort": "80",
+ "Protocol": "HTTP"
+ }
+ ]
+ },
+ "Type": "AWS::ElasticLoadBalancing::LoadBalancer"
+ },
+ "InstanceSecurityGroup": {
+ "Properties": {
+ "GroupDescription": "Enable SSH access and HTTP from the load balancer only",
+ "SecurityGroupIngress": [
+ {
+ "CidrIp": {
+ "Ref": "SSHLocation"
+ },
+ "FromPort": "22",
+ "IpProtocol": "tcp",
+ "ToPort": "22"
+ },
+ {
+ "FromPort": "80",
+ "IpProtocol": "tcp",
+ "SourceSecurityGroupName": {
+ "Fn::GetAtt": [
+ "ElasticLoadBalancer",
+ "SourceSecurityGroup.GroupName"
+ ]
+ },
+ "SourceSecurityGroupOwnerId": {
+ "Fn::GetAtt": [
+ "ElasticLoadBalancer",
+ "SourceSecurityGroup.OwnerAlias"
+ ]
+ },
+ "ToPort": "80"
+ }
+ ]
+ },
+ "Type": "AWS::EC2::SecurityGroup"
+ },
+ "LaunchConfig": {
+ "Metadata": {
+ "AWS::CloudFormation::Init": {
+ "config": {
+ "files": {
+ "/etc/cfn/cfn-hup.conf": {
+ "content": {
+ "Fn::Join": [
+ "",
+ [
+ "[main]\n",
+ "stack=",
+ {
+ "Ref": "AWS::StackId"
+ },
+ "\n",
+ "region=",
+ {
+ "Ref": "AWS::Region"
+ },
+ "\n"
+ ]
+ ]
+ },
+ "group": "root",
+ "mode": "000400",
+ "owner": "root"
+ },
+ "/etc/cfn/hooks.d/cfn-auto-reloader.conf": {
+ "content": {
+ "Fn::Join": [
+ "",
+ [
+ "[cfn-auto-reloader-hook]\n",
+ "triggers=post.update\n",
+ "path=Resources.LaunchConfig.Metadata.AWS::CloudFormation::Init\n",
+ "action=/opt/aws/bin/cfn-init -v ",
+ " --stack ",
+ {
+ "Ref": "AWS::StackName"
+ },
+ " --resource LaunchConfig ",
+ " --region ",
+ {
+ "Ref": "AWS::Region"
+ },
+ "\n",
+ "runas=root\n"
+ ]
+ ]
+ }
+ },
+ "/var/www/html/index.html": {
+ "content": {
+ "Fn::Join": [
+ "\n",
+ [
+ "",
+ "Congratulations, you have successfully launched the AWS CloudFormation sample.
"
+ ]
+ ]
+ },
+ "group": "root",
+ "mode": "000644",
+ "owner": "root"
+ }
+ },
+ "packages": {
+ "yum": {
+ "httpd": []
+ }
+ },
+ "services": {
+ "sysvinit": {
+ "cfn-hup": {
+ "enabled": "true",
+ "ensureRunning": "true",
+ "files": [
+ "/etc/cfn/cfn-hup.conf",
+ "/etc/cfn/hooks.d/cfn-auto-reloader.conf"
+ ]
+ },
+ "httpd": {
+ "enabled": "true",
+ "ensureRunning": "true"
+ }
+ }
+ }
+ }
+ },
+ "Comment": "Install a simple application"
+ },
+ "Properties": {
+ "ImageId": {
+ "Fn::FindInMap": [
+ "AWSRegionArch2AMI",
+ {
+ "Ref": "AWS::Region"
+ },
+ {
+ "Fn::FindInMap": [
+ "AWSInstanceType2Arch",
+ {
+ "Ref": "InstanceType"
+ },
+ "Arch"
+ ]
+ }
+ ]
+ },
+ "InstanceType": {
+ "Ref": "InstanceType"
+ },
+ "KeyName": {
+ "Ref": "KeyName"
+ },
+ "SecurityGroups": [
+ {
+ "Ref": "InstanceSecurityGroup"
+ }
+ ],
+ "UserData": {
+ "Fn::Base64": {
+ "Fn::Join": [
+ "",
+ [
+ "#!/bin/bash -xe\n",
+ "yum update -y aws-cfn-bootstrap\n",
+ "/opt/aws/bin/cfn-init -v ",
+ " --stack ",
+ {
+ "Ref": "AWS::StackName"
+ },
+ " --resource LaunchConfig ",
+ " --region ",
+ {
+ "Ref": "AWS::Region"
+ },
+ "\n",
+ "/opt/aws/bin/cfn-signal -e $? ",
+ " --stack ",
+ {
+ "Ref": "AWS::StackName"
+ },
+ " --resource WebServerGroup ",
+ " --region ",
+ {
+ "Ref": "AWS::Region"
+ },
+ "\n"
+ ]
+ ]
+ }
+ }
+ },
+ "Type": "AWS::AutoScaling::LaunchConfiguration"
+ },
+ "NotificationTopic": {
+ "Properties": {
+ "Subscription": [
+ {
+ "Endpoint": {
+ "Ref": "OperatorEMail"
+ },
+ "Protocol": "email"
+ }
+ ]
+ },
+ "Type": "AWS::SNS::Topic"
+ },
+ "WebServerGroup": {
+ "CreationPolicy": {
+ "ResourceSignal": {
+ "Count": "1",
+ "Timeout": "PT15M"
+ }
+ },
+ "Properties": {
+ "AvailabilityZones": {
+ "Fn::GetAZs": ""
+ },
+ "LaunchConfigurationName": {
+ "Ref": "LaunchConfig"
+ },
+ "LoadBalancerNames": [
+ {
+ "Ref": "ElasticLoadBalancer"
+ }
+ ],
+ "MaxSize": "3",
+ "MinSize": "1",
+ "NotificationConfigurations": [
+ {
+ "NotificationTypes": [
+ "autoscaling:EC2_INSTANCE_LAUNCH",
+ "autoscaling:EC2_INSTANCE_LAUNCH_ERROR",
+ "autoscaling:EC2_INSTANCE_TERMINATE",
+ "autoscaling:EC2_INSTANCE_TERMINATE_ERROR"
+ ],
+ "TopicARN": {
+ "Ref": "NotificationTopic"
+ }
+ }
+ ]
+ },
+ "Type": "AWS::AutoScaling::AutoScalingGroup",
+ "UpdatePolicy": {
+ "AutoScalingRollingUpdate": {
+ "MaxBatchSize": "1",
+ "MinInstancesInService": "1",
+ "PauseTime": "PT15M",
+ "WaitOnResourceSignals": "true"
+ }
+ }
+ },
+ "WebServerScaleDownPolicy": {
+ "Properties": {
+ "AdjustmentType": "ChangeInCapacity",
+ "AutoScalingGroupName": {
+ "Ref": "WebServerGroup"
+ },
+ "Cooldown": "60",
+ "ScalingAdjustment": "-1"
+ },
+ "Type": "AWS::AutoScaling::ScalingPolicy"
+ },
+ "WebServerScaleUpPolicy": {
+ "Properties": {
+ "AdjustmentType": "ChangeInCapacity",
+ "AutoScalingGroupName": {
+ "Ref": "WebServerGroup"
+ },
+ "Cooldown": "60",
+ "ScalingAdjustment": "1"
+ },
+ "Type": "AWS::AutoScaling::ScalingPolicy"
+ }
+ }
+}
diff --git a/troposphere/cloudformation.py b/troposphere/cloudformation.py
index 1fbdc93b1..6620eb626 100644
--- a/troposphere/cloudformation.py
+++ b/troposphere/cloudformation.py
@@ -71,6 +71,14 @@ def to_dict(self):
return dict(t)
+class Comment(AWSHelperFn):
+ def __init__(self, data):
+ self.data = {'Comment': data}
+
+ def JSONrepr(self):
+ return self.data
+
+
class InitFileContext(AWSHelperFn):
def __init__(self, data):
self.data = data