The document discusses orchestrating applications in the cloud. It covers application architecture with multiple tiers, the role of orchestration in managing the cloud lifecycle, and the pillars of orchestration including provisioning with CloudFormation templates, configuration management, and performance automation with auto-scaling. An example web application stack is presented to demonstrate orchestration with CloudFormation.

1. Orchestrating the
Cloud
Matt Wood
T E C H N O L O G Y E VA N G E L I S T

2. Welcome

3. AGENDA
Orchestrating the Cloud
1. Ap plication architecture
2. Role of orchestration
3 . Pillars of orchestration
4. Orche stration by example
5. Summar y

4. 1
Application
Architecture

5. Applications
in the cloud

6. 3 tiers

7. Application tier
Code Configuration

8. Application tier
Code Configuration

9. Application tier
Code Configuration
Service tier
Integration
Operating system
settings
Services +
Launch configuration
configuration

10. Application tier
Code Configuration
Service tier
Integration
Operating system
settings
Services +
Launch configuration
configuration

11. Application tier
Code Configuration
Service tier
Integration
Operating system
settings
Services +
Launch configuration
configuration
Infrastructure tier
AMIs Architecture Multi-AZ
Scaling rules Security groups Middleware

12. Value baked into
each tier

13. Value in
application

14. Value in
service tier

15. Optimisation Configuration
Value in
service tier
Technology
choices

16. Value in
infrastructure

17. Engine room Optimised
Value in
infrastructure
Scalable Fault tolerant

18. Maximising
Orchestration
maximises this value
value

19. Ephemeral
Maximising
to
value
concrete

20. One team
Maximising
to
value
whole organisation

21. One hit
Maximising
to
value
reproducible

22. Maximising
Brittle to strong
value

23. Maximising
Maximise value
value

24. Maximising
Minimise risk
value

25. 2
Role of
Orchestration

26. Cloud life cycle

27. Initialisation

28. Steady state
run time

29. Updates

30. Application updates
Updates
Service updates

31. Scale events

32. Change
management

33. Ver y me t a !
Managing
change
management

34. 3
Pillars of
Orchestration

35. Z E R O T H P I L L A R
Version control

36. F I R S T P I L L A R
Provisioning
orchestration

37. CloudFormation
aws.amazon.com/cloudformation

38. Template

39. Define a full
infrastructure
stack

40. Auto-scaling
RDS
EC2 SNS
SimpleDB
SQS
Resources
Elastic Beanstalk CloudWatch
Security groups Tags

41. Template CloudFormation
Provisioned
resources

42. Complete
definition

43. Atomic

44. Idempotent

45. Free

46. Anatomy of a
template

47. JSON

48. Perfect for
Plain text
version control
JSON
Validate-able

49. Declarative
language

50. {
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "Create an EC2 instances",
"Parameters" : {
"KeyName" : {
"Description" : "Name of an existing EC2 KeyPair to enable SSH access to the instance",
"Type" : "String"
}
},
"Mappings" : {
"RegionMap" : {
"us-east-1" : {
"AMI" : "ami-76f0061f"
},
"us-west-1" : {
"AMI" : "ami-655a0a20"
},
"eu-west-1" : {
"AMI" : "ami-7fd4e10b"
},
"ap-southeast-1" : {
"AMI" : "ami-72621c20"
},
"ap-northeast-1" : {
"AMI" : "ami-8e08a38f"
}
}
},
"Resources" : {
"Ec2Instance" : {
"Type" : "AWS::EC2::Instance",
"Properties" : {
"KeyName" : { "Ref" : "KeyName" },
"ImageId" : { "Fn::FindInMap" : [ "RegionMap", { "Ref" : "AWS::Region" }, "AMI" ]},
"UserData" : { "Fn::Base64" : "80" }
}
}
},
"Outputs" : {
"InstanceId" : {
"Description" : "InstanceId of the newly created EC2 instance",
"Value" : { "Ref" : "Ec2Instance" }
},
"AZ" : {
"Description" : "Availability Zone of the newly created EC2 instance",
"Value" : { "Fn::GetAtt" : [ "Ec2Instance", "AvailabilityZone" ] }
},
"PublicIP" : {
"Description" : "Public IP address of the newly created EC2 instance",
"Value" : { "Fn::GetAtt" : [ "Ec2Instance", "PublicIp" ] }
}
}
}

51. {
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "Create an EC2 instances", Headers
Parameters
"Parameters" : {
"KeyName" : {
"Description" : "Name of an existing EC2 KeyPair to enable SSH access to the instance",
"Type" : "String"
}
},
"Mappings" : {
"RegionMap" : {
"us-east-1" : {
"AMI" : "ami-76f0061f"
},
"us-west-1" : {
Mappings
"AMI" : "ami-655a0a20"
},
"eu-west-1" : {
"AMI" : "ami-7fd4e10b"
},
"ap-southeast-1" : {
"AMI" : "ami-72621c20"
},
"ap-northeast-1" : {
"AMI" : "ami-8e08a38f"
}
}
},
"Resources" : {
"Ec2Instance" : {
"Type" : "AWS::EC2::Instance",
Resources
"Properties" : {
"KeyName" : { "Ref" : "KeyName" },
"ImageId" : { "Fn::FindInMap" : [ "RegionMap", { "Ref" : "AWS::Region" }, "AMI" ]},
"UserData" : { "Fn::Base64" : "80" }
}
}
},
"Outputs" : {
"InstanceId" : {
"Description" : "InstanceId of the newly created EC2 instance",
"Value" : { "Ref" : "Ec2Instance" }
},
Outputs
"AZ" : {
"Description" : "Availability Zone of the newly created EC2 instance",
"Value" : { "Fn::GetAtt" : [ "Ec2Instance", "AvailabilityZone" ] }
},
"PublicIP" : {
"Description" : "Public IP address of the newly created EC2 instance",
"Value" : { "Fn::GetAtt" : [ "Ec2Instance", "PublicIp" ] }
}
}
}

52. Parameters
Provision-time specification
Command line options

53. "Parameters" : {
"KeyName" : {
"Description" : "Name of an existing
EC2 KeyPair to enable SSH access to
the instance",
"Type" : "String"
}
},

54. Mappings
Conditionals
Case statements

55. "Mappings" : {
"RegionMap" : {
"us-east-1" : {
"AMI" : "ami-76f0061f"
},
"us-west-1" : {
"AMI" : "ami-655a0a20"
},
"eu-west-1" : {
"AMI" : "ami-7fd4e10b"
},
"ap-southeast-1" : {
"AMI" : "ami-72621c20"
},
"ap-northeast-1" : {
"AMI" : "ami-8e08a38f"
}
}
},

56. "Mappings": {
"AWSInstanceType2Arch" : {
"t1.micro" : { "Arch" : "64" },
"m1.large" : { "Arch" : "64" },
"m1.xlarge" : { "Arch" : "64" },
"m2.xlarge" : { "Arch" : "64" },
"m2.2xlarge" : { "Arch" : "64" },
"m2.4xlarge" : { "Arch" : "64" },
"c1.xlarge" : { "Arch" : "64" },
"cc1.4xlarge" : { "Arch" : "64" }
},

57. Resources

58. "Resources" : {
"Ec2Instance" : {
"Type" : "AWS::EC2::Instance",
"Properties" : {
"KeyName" : { "Ref" : "KeyName" },
"ImageId" : { "Fn::FindInMap" :
[ "RegionMap", { "Ref" : "AWS::Region" },
"AMI" ]},
"UserData" : { "Fn::Base64" : "80" }
}
}
}

59. "Resources" : {
"Ec2Instance" : {
"Type" : "AWS::EC2::Instance",
"Properties" : {
"KeyName" : { "Ref" : "KeyName" },
"ImageId" : { "Fn::FindInMap" :
[ "RegionMap", { "Ref" : "AWS::Region" },
"AMI" ]},
"UserData" : { "Fn::Base64" : "80" }
}
}
}

60. "Resources" : {
"Ec2Instance" : {
"Type" : "AWS::EC2::Instance",
"Properties" : {
"KeyName" : { "Ref" : "KeyName" },
"ImageId" : { "Fn::FindInMap" :
[ "RegionMap", { "Ref" : "AWS::Region" },
"AMI" ]},
"UserData" : { "Fn::Base64" : "80" }
}
}
}

61. "KeyName" : { "Ref" : "KeyName" },
Par ame ter
re fere nce

62. "ImageId" : {
"Fn::FindInMap" :
[ "RegionMap", { "Ref" : "AWS::Region" }, "AMI" ]
},

63. M ap c ondit ional
"ImageId" : {
"Fn::FindInMap" :
[ "RegionMap", { "Ref" : "AWS::Region" }, "AMI" ]
},

64. "ImageId" : {
"Fn::FindInMap" :
[ "RegionMap", { "Ref" : "AWS::Region" }, "AMI" ]
},
Nam e of
map

65. "ImageId" : {
"Fn::FindInMap" :
[ "RegionMap", { "Ref" : "AWS::Region" }, "AMI" ]
},
Intrinsic
property
reference

66. Outputs
Returned values

67. "Outputs" : {
"InstanceId" : {
"Description" : "InstanceId of the newly created EC2 instance",
"Value" : { "Ref" : "Ec2Instance" }
},
"AZ" : {
"Description" : "Availability Zone of the newly created EC2 instance",
"Value" : { "Fn::GetAtt" : [ "Ec2Instance", "AvailabilityZone" ] }
},
"PublicIP" : {
"Description" : "Public IP address of the newly created EC2 instance",
"Value" : { "Fn::GetAtt" : [ "Ec2Instance", "PublicIp" ] }
}
}
}

68. Deliver via API

69. Validate via API

70. Deliver via S3

71. Growing library

72. S E C O N D P I L L A R
Configuration
management

73. Custom AMI

74. m1.large
100Gb

75. Template
m1.large
AMI AMI
SNAPSHOT
100Gb SNAPSHOT

76. m1.large
AMI m1.large
SNAPSHOT
100Gb 100Gb

77. m1.large m1.large m1.large m1.large
100Gb 100Gb 100Gb 100Gb
m1.large m1.large m1.large m1.large
100Gb 100Gb 100Gb 100Gb

78. Bootstrap

79. Generic AMI

80. Custom build

81. Services Dependencies
Define manifests
Configuration
Applications

82. AMI
SNAPSHOT
Template CloudFormation

83. AMI m1.large
AMI
SNAPSHOT SNAPSHOT
100Gb
Template CloudFormation

84. Services
AMI m1.large
AMI Dependencies
Applications
Configration
SNAPSHOT SNAPSHOT
100Gb
Template CloudFormation

85. 1. Setup users and groups
2. Install Apache
3. Configure Apache
4. Setup directories
5. Start ancillary services
6. Deploy code

86. Management
server

87. Pull

88. AMI
SNAPSHOT m1.large m1.large m1.large
100Gb 100Gb 100Gb
Management
server

89. Push

90. m1.large m1.large m1.large
100Gb 100Gb 100Gb
Management
server

91. Fewer AMIs to
manage

92. Versioned
configuration

93. Codified updates

94. Known state

95. Rolling updates

96. Simulations

97. Built for elastic
architectures

98. Loose coupling

99. Address via
meta-data

100. And much more!

101. :(
Extra overhead

102. Chef
+ Knife

103. Puppet
+ MCollective

104. T H I R D P I L L A R
Performance
automation

105. Auto-scaling

106. ELB
CloudWatch Auto-scaling

107. Scaling group

108. DatabaseConnections
DatabaseConnections
Scaling group Triggers
(Alarms + Policies)

109. Launch
configurations
DatabaseConnections
DatabaseConnections
Scaling group Triggers
(Alarms + Policies)

110. Additional
performance

111. Launch
configurations
DatabaseConnections
DatabaseConnections
Scaling group Triggers
(Alarms + Policies)

112. Launch
configurations
DatabaseConnections
DatabaseConnections
Scaling group Triggers
(Alarms + Policies)

113. Launch
configurations
DatabaseConnections
DatabaseConnections
Scaling group Triggers
(Alarms + Policies)

114. Launch
configurations
DatabaseConnections
DatabaseConnections
Scaling group Triggers
(Alarms + Policies)

115. Auto-healing

116. 4
Orchestration
by Example

117. Web application
Web application

118. Initialisation
with CloudFormation

119. Design stack

120. Load balancer
Fault tolerant
web servers
RDS

121. Create template

122. {
"AWSTemplateFormatVersion" : "2010-09-09",
"Parameters" : {
Parameters
"InstanceType" : {
"Description" : "Type of EC2 instance to launch",
"Type" : "String",
"Default" : "m1.small"
},
"WebServerPort" : {
"Description" : "TCP/IP port of the web server",
"Type" : "String",
"Default" : "8888"
},
"KeyName" : {
"Description" : "Name of an existing EC2 KeyPair to enable SSH access to the instances",
"Type" : "String"
}
},
"Mappings" : {
"AWSInstanceType2Arch" : {
"t1.micro" : { "Arch" : "64" },
"m1.small" : { "Arch" : "32" },
"m1.large" : { "Arch" : "64" },
"m1.xlarge" : { "Arch" : "64" },
"m2.xlarge" : { "Arch" : "64" },
Mappings
"m2.2xlarge" : { "Arch" : "64" },
"m2.4xlarge" : { "Arch" : "64" },
"c1.medium" : { "Arch" : "32" },
"c1.xlarge" : { "Arch" : "64" },
"cc1.4xlarge" : { "Arch" : "64" }
},
"AWSRegionArch2AMI" : {
"us-east-1" : { "32" : "ami-6411e20d", "64" : "ami-7a11e213" },
"us-west-1" : { "32" : "ami-c9c7978c", "64" : "ami-cfc7978a" },
"eu-west-1" : { "32" : "ami-37c2f643", "64" : "ami-31c2f645" },
"ap-southeast-1" : { "32" : "ami-66f28c34", "64" : "ami-60f28c32" },
"ap-northeast-1" : { "32" : "ami-9c03a89d", "64" : "ami-a003a8a1" }
}
},
"Resources" : {
"WebServerGroup" : {
"Type" : "AWS::AutoScaling::AutoScalingGroup",
"Properties" : {
"AvailabilityZones" : { "Fn::GetAZs" : "" },
"LaunchConfigurationName" : { "Ref" : "LaunchConfig" },
"MinSize" : "2",
"MaxSize" : "2",
"LoadBalancerNames" : [ { "Ref" : "ElasticLoadBalancer" } ]
}
},
"LaunchConfig" : {
"Type" : "AWS::AutoScaling::LaunchConfiguration",
"Properties" : {
"KeyName" : { "Ref" : "KeyName" },
"ImageId" : { "Fn::FindInMap" : [ "AWSRegionArch2AMI", { "Ref" : "AWS::Region" },
{ "Fn::FindInMap" : [ "AWSInstanceType2Arch", { "Ref" : "InstanceType" },
"Arch" ] } ] },
"UserData" : { "Fn::Base64" : { "Ref" : "WebServerPort" }},
"SecurityGroups" : [ { "Ref" : "InstanceSecurityGroup" } ],
"InstanceType" : { "Ref" : "InstanceType" }
}
},
Resources
"ElasticLoadBalancer" : {
"Type" : "AWS::ElasticLoadBalancing::LoadBalancer",
"Properties" : {
"AvailabilityZones" : { "Fn::GetAZs" : "" },
"Listeners" : [ {
"LoadBalancerPort" : "80",
"InstancePort" : { "Ref" : "WebServerPort" },
"Protocol" : "HTTP"
} ],
"HealthCheck" : {
"Target" : { "Fn::Join" : [ "", ["HTTP:", { "Ref" : "WebServerPort" }, "/"]]},
"HealthyThreshold" : "3",
"UnhealthyThreshold" : "5",
"Interval" : "30",
"Timeout" : "5"
}
}
},
"InstanceSecurityGroup" : {
"Type" : "AWS::EC2::SecurityGroup",
"Properties" : {
"GroupDescription" : "Enable SSH access and HTTP access on the inbound port",
"SecurityGroupIngress" : [ {
"IpProtocol" : "tcp",
"FromPort" : "22",
"ToPort" : "22",
"CidrIp" : "0.0.0.0/0"
},
{
"IpProtocol" : "tcp",
"FromPort" : { "Ref" : "WebServerPort" },
"ToPort" : { "Ref" : "WebServerPort" },
"CidrIp" : "0.0.0.0/0"
} ]
}
}
Outputs
},
"Outputs" : {
"URL" : {
"Description" : "URL of the website",
"Value" : { "Fn::Join" : [ "", [ "http://", { "Fn::GetAtt" : [ "ElasticLoadBalancer", "DNSName" ]}]]}
}
}
}

123. "Parameters" : {
"InstanceType" : {
"Description" : "Type of EC2 instance to launch",
"Type" : "String",
"Default" : "m1.small"
},
"WebServerPort" : {
"Description" : "TCP/IP port of the web server",
"Type" : "String",
"Default" : "8888"
},
"DatabaseName": {
"Default": "SampleDatabase",
"Description" : "Name of the sample database",
"Type": "String"
},
"DatabaseUser": {
"Default": "admin",
"NoEcho": "true",
"Description" : "Sample database admin account username",
"Type": "String"
},
"DatabasePwd": {
"Default": "admin",
"NoEcho": "true",
"Description" : "Sample database admin account password",
"Type": "String"
},
"DatabasePort": {
"Default": "8443",
"Description" : "TCP/IP port for the RDS database",
"Type": "String"
},
"KeyName" : {
"Description" : "Name of an existing EC2 KeyPair to enable SSH access to the instances",
"Type" : "String"
}
},

124. "Mappings" : {
"AWSInstanceType2Arch" : {
"t1.micro" : { "Arch" : "64" },
"m1.small" : { "Arch" : "32" },
"m1.large" : { "Arch" : "64" },
"m1.xlarge" : { "Arch" : "64" },
"m2.xlarge" : { "Arch" : "64" },
"m2.2xlarge" : { "Arch" : "64" },
"m2.4xlarge" : { "Arch" : "64" },
"c1.medium" : { "Arch" : "32" },
"c1.xlarge" : { "Arch" : "64" },
"cc1.4xlarge" : { "Arch" : "64" }
},
"AWSRegionArch2AMI" : {
"us-east-1" : { "32" : "ami-6411e20d", "64" : "ami-7a11e213" },
"us-west-1" : { "32" : "ami-c9c7978c", "64" : "ami-cfc7978a" },
"eu-west-1" : { "32" : "ami-37c2f643", "64" : "ami-31c2f645" },
"ap-southeast-1" : { "32" : "ami-66f28c34", "64" : "ami-60f28c32" },
"ap-northeast-1" : { "32" : "ami-9c03a89d", "64" : "ami-a003a8a1" }
}
},

125. "Resources" : {
"WebServerGroup" : {
"Type" : "AWS::AutoScaling::AutoScalingGroup",
"Properties" : {
"AvailabilityZones" : { "Fn::GetAZs" : "" },
"LaunchConfigurationName" : { "Ref" : "LaunchConfig" },
"MinSize" : "3",
"MaxSize" : "3",
"LoadBalancerNames" : [ { "Ref" : "ElasticLoadBalancer" } ]
}
},

126. "SampleDatabase": {
"Properties": {
"Engine": "MySQL5.1",
"DBName": {
"Ref": "RailDatabaseName"
},
"Port": "8443",
"MultiAZ" : { "Fn::FindInMap" : [ "AWSRegionCapabilities",
{ "Ref" : "AWS::Region" }, "RDSMultiAZ"] },
"MasterUsername": {
"Ref": "DatabaseUser"
},
"DBInstanceClass": "db.m1.small",
"DBSecurityGroups": [
{
"Ref": "DBSecurityGroup"
}
],
"AllocatedStorage": "5",
"MasterUserPassword": {
"Ref": "DatabasePwd"
}
},
"Type": "AWS::RDS::DBInstance"
},

127. "LaunchConfig" : {
"Type" : "AWS::AutoScaling::LaunchConfiguration",
"Properties" : {
"KeyName" : { "Ref" : "KeyName" },
"ImageId" : { "Fn::FindInMap" :
[ "AWSRegionArch2AMI", { "Ref" : "AWS::Region" },
{ "Fn::FindInMap" : [ "AWSInstanceType2Arch", { "Ref" :
"InstanceType" },
"Arch" ] } ] },
"SecurityGroups" : [ { "Ref" :
"InstanceSecurityGroup" } ],
"InstanceType" : { "Ref" : "InstanceType" }
}
},

128. "UserData": {
"Fn::Base64": {
"Fn::Join": [
":",
[
{
"Ref": "DatabaseName"
},
{
"Ref": "DatabaseUser"
},
{
"Ref": "DatabasePwd"
},
{
"Ref": "DatabasePort"
},
{
"Fn::GetAtt": [
"SampleDatabase",
"Endpoint.Address"
]
},
{
"Ref": "WebServerPort"
}
]
]
}

129. "ElasticLoadBalancer" : {
"Type" : "AWS::ElasticLoadBalancing::LoadBalancer",
"Properties" : {
"AvailabilityZones" : { "Fn::GetAZs" : "" },
"Listeners" : [ {
"LoadBalancerPort" : "80",
"InstancePort" : { "Ref" : "WebServerPort" },
"Protocol" : "HTTP"
} ],
"HealthCheck" : {
"Target" : { "Fn::Join" : [ "", ["HTTP:", { "Ref" :
"WebServerPort" }, "/"]]},
"HealthyThreshold" : "3",
"UnhealthyThreshold" : "5",
"Interval" : "30",
"Timeout" : "5"
}
}
},

130. "DBSecurityGroup": {
"Properties": {
"DBSecurityGroupIngress": {
"EC2SecurityGroupName": {
"Ref": "EC2SecurityGroup"
}
},
"GroupDescription": "database access"
},
"Type": "AWS::RDS::DBSecurityGroup"
},
"InstanceSecurityGroup" : {
"Type" : "AWS::EC2::SecurityGroup",
"Properties" : {
"GroupDescription" : "Enable SSH access and HTTP access on the inbound port",
"SecurityGroupIngress" : [ {
"IpProtocol" : "tcp",
"FromPort" : "22",
"ToPort" : "22",
"CidrIp" : "0.0.0.0/0"
},
{
"IpProtocol" : "tcp",
"FromPort" : { "Ref" : "WebServerPort" },
"ToPort" : { "Ref" : "WebServerPort" },
"CidrIp" : "0.0.0.0/0"
} ]
}
}
},

131. "Outputs" : {
"URL" : {
"Description" : "URL of the website",
"Value" : { "Fn::Join" : [ "", [ "http://",
{ "Fn::GetAtt" : [ "ElasticLoadBalancer", "DNSName" ]}]]}
}
}

132. Create stack

136. DatabasePort
DatabaseUser
DatabaseName

137. Example application

138. Example application

139. Example application
ApplicationStack
ELB URL URL of website 165783690.eu-.west-1.elb.

140. Steady state
monitoring with CloudWatch

141. Update
with CloudFormation

142. Update
with Puppet

143. Define manifest
Resource lists, dependencies

144. define apache::site ( $ensure = 'present', $require_package
= 'apache', $content = '', $source = '') {
include apache
$site_file = "${module_dir_path}/apache/sites/${name}"
config_file {
$site_file:
ensure => $ensure,
content => $content,
source => $source,
notify => Exec["reload-apache"]
}
}

145. define apache::site ( $ensure = 'present', $require_package
= 'apache', $content = '', $source = '') {
include apache
$site_file = "${module_dir_path}/apache/sites/${name}"
config_file {
$site_file:
ensure => $ensure,
content => $content,
source => $source,
notify => Exec["reload-apache"]
}
}

146. define apache::site ( $ensure = 'present', $require_package
= 'apache', $content = '', $source = '') {
include apache
$site_file = "${module_dir_path}/apache/sites/${name}"
config_file {
$site_file:
ensure => $ensure,
content => $content,
source => $source,
notify => Exec["reload-apache"]
}
}

147. Apply manifest
puppet apply,
Pull/push from the Puppet Master

148. Performance
automation
with EC2 autoscaling

149. as-create-launch-config
AppLaunchConfig
--image-id ami-132216677
--instance-type m1.large
--key amazon-web
--group "Web and SSH"

150. as-create-auto-scaling-group
AppScalingGroup
--launch-configuration AppLaunchConfig
--availability-zones eu-west-1a, eu-west-1b
--min-size 10
--max-size 100
--load-balancers app-load-balancer

151. as-put-scaling-policy
AppScaleUpPolicy
--auto-scaling-group AppScalingGroup
--scaling-adjustment 1
--type ChangeInCapacity
--cool-down 300

152. mon-put-metric-alarm
AppHighCPUAlarm
--comparison-operator GreaterThanThreshold
--evaluation-period 1
--metric-name CPUUtilization
--namespace “AWS:EC2”
--period 600
--statistic Average
--threshold 80
--alarm-actions <high-cpu-policy-arn>
--dimensions
“AutoscalingGroupName=AppScalingGroup”

153. as-put-scaling-policy
AppScaleDownPolicy
--auto-scaling-group AppScalingGroup
--scaling-adjustment -1
--type ChangeInCapacity
--cool-down 300

154. mon-put-metric-alarm
AppLowCPUAlarm
--comparison-operator LessThanThreshold
--evaluation-period 1
--metric-name CPUUtilization
--namespace “AWS:EC2”
--period 600
--statistic Average
--threshold 80
--alarm-actions <low-cpu-policy-arn>
--dimensions
“AutoscalingGroupName=AppScalingGroup”

155. aws.amazon.com/cloudformation
puppetlabs.com
opscode.com/chef
aws.amazon.com/whitepapers

156. AGENDA
Orchestrating the Cloud
1. Ap plication architecture
2. Role of orchestration
3 . Pillars of orchestration
4. Orche stration by example
5. Summar y

157. 3 tiers of cloud
application design

158. Maximising the value
in each tier

159. Orchestration
codifies knowledge

160. Three pillars of
orchestration

161. Provisioning
orchestration

162. Configuration
management

163. Performance
automation

164. CloudFormation

165. Puppet, Chef

166. Autoscaling service

167. aws.amazon.com

168. Thank you!

169. Q U E S T I O N S + C O M M E N T S
matthew@amazon.com
@mza
O N T W I T T E R