[mar aws 201] auto scaling demo

AMAZON WEB SERVICES CONFIDENTIAL. THIS DOCUMENT MAY NOT BE DISCLOSED WITHOUT AMAZON WEB SERVICES’ PRIOR WRITTEN CONSENT. This document is for discussion purposes only. Neither party will have any obligaNon or liability with respect to the maOers described in this document (other than confidenNality obligaNons), unless and unNl a definiNve wriOen agreement addressing such maOers is executed by each party, and neither party will have any liability for any failure or refusal to enter into a definiNve agreement for any reason.

Auto Scaling Demo

Ilho Kim Solutions Architect

March 2013


This document is intended solely for discussion purposes. Amazon Web Services has provided answers based on its current knowledge, but these answers may change due to a variety of factors, including changes in aOendees’ requirements, the capabiliNes of the third party selected to assist with implementaNon, and changes to Amazon Web Services offerings. Any agreement between Amazon Web Services and aOendees regarding the proposed soluNon will be documented in a separate definiNve agreement, not this proposal.

General Disclaimer


•  You have registered AWS. •  You know how to login AWS console •  You know how to connect w/ ssh to instances •  You know auth. Key / secret Key •  VPC(Virtual Private Cloud) configured

–  Two private subnets(each one in each AZ) –  IGW –  ELB (internet-‐facing)

•  AWS CLI installed (EC2, Auto Scaling) –  setup environments/java/path/credenNals

Assuming


Demo Architecture

Availability Zone #1

Auto Scaling group : Web App Tier

Apache

PHP Mod

Apache

PHP Mod

Elas@c Load Balancer

Amazon Route 53 (DNS)

Amazon CloudWatch (Monitoring)

Availability Zone #2

Auto Scaling group : Web App Tier

Apache

PHP Mod

Apache

PHP Mod

Region

Internet GateWay

Private Subnet Private Subnet


•  Web/Was in private subnets in VPC –  10.0.0.0/16

•  10.0.1.0/24, 10.0.2.0/24

•  ELB –  Internet-‐facing (not internal) –  Set traffic into both subnets(= both AZs)

•  IGW aOached •  Using hOpd, php and index.php pre-‐installed AMI •  RouNng Tables, SG configured for web service(look at console)

Architecture details


•  Instance type : t1.micro •  AMI : ami-‐668a150f

–  HOpd, php installed –  Index.php (dump instance informaNon)

Architecture details

<?php $output = shell_exec('curl 169.254.169.254/latest/dynamic/instance-‐idenNty/document/'); echo "<pre>$output</pre>"; ?>


•  Auto Scaling basic Commands •  CMD -‐-‐help shows opNons

Auto Scaling CLI


•  as-‐create-‐launch-‐config –  Image-‐id –  Instance Type – Key (do not add “.pem”) – Group (VPC Security Group, not EC2) – Launch-‐config (the name of configuraNon)

CreaNng Launch ConfiguraNon

$ as-‐create-‐launch-‐config -‐-‐image-‐id ami-‐668a150f -‐-‐instance-‐type t1.micro -‐-‐key test_web -‐-‐group sg-‐ae9665c1 -‐-‐launch-‐config web-‐as-‐config

Not name, SG Group ID!


•  as-‐create-‐auto-‐scaling-‐group –  Auto Scaling Group Name –  Availability Zones = AZ,AZ… –  Launch ConfiguraNon Name –  Load Balancer Names –  MaxSize –  MinSize –  vpc-‐zone-‐iden@fier (Not VPC ID, subnet IDs !) –  region

Create Auto Scaling Group

$ as-‐create-‐auto-‐scaling-‐group web-‐as-‐group -‐-‐availability-‐zones us-‐east-‐1b,us-‐east-‐1c -‐-‐launch-‐configuraNon web-‐as-‐config -‐-‐load-‐balancers webloadbal-‐vpc -‐-‐max-‐size 6 -‐-‐min-‐size 2 -‐-‐vpc-‐zone-‐idenNfier 'subnet-‐5718c13a,subnet-‐7f18c112' -‐-‐region us-‐east-‐1

Press Enter = Auto Scaling start!


•  Now Auto Scaling starts! (-‐-‐min-‐size 2) •  Go to browser and type ELB URL

– Ex. hOp://webloadbal-‐vpc-‐652639900.us-‐east-‐1.elb.amazonaws.com/

Check if AS is working

{ "instanceId" : "i-‐14b3a167", "billingProducts" : null, "version" : "2010-‐08-‐31", "imageId" : "ami-‐668a150f", "accountId" : ”12345678901", "instanceType" : "t1.micro", "kernelId" : "aki-‐88aa75e1", "ramdiskId" : null, "architecture" : "x86_64", "pendingTime" : "2013-‐03-‐10T10:45:03Z", "availabilityZone" : "us-‐east-‐1c", "devpayProductCodes" : null, "privateIp" : "10.0.2.73", "region" : "us-‐east-‐1" }

{ "instanceId" : "i-‐f2584581", "billingProducts" : null, "version" : "2010-‐08-‐31", "imageId" : "ami-‐668a150f", "accountId" : "806506827877", "instanceType" : "t1.micro", "kernelId" : "aki-‐88aa75e1", "ramdiskId" : null, "architecture" : "x86_64", "pendingTime" : "2013-‐03-‐10T11:08:18Z", "availabilityZone" : "us-‐east-‐1b", "devpayProductCodes" : null, "privateIp" : "10.0.1.87", "region" : "us-‐east-‐1" }


Create Auto Scaling Policy

•  Create Scale Up Policy

•  Create Scale Down Policy

$ as-‐put-‐scaling-‐policy webScaleUpPolicy -‐-‐auto-‐scaling-‐group web-‐as-‐group -‐-‐adjustment=1 -‐-‐type ChangeInCapacity -‐-‐cooldown 180 ��

$ as-‐put-‐scaling-‐policy webScaleDownPolicy -‐-‐auto-‐scaling-‐group web-‐as-‐group "-‐-‐adjustment=-‐1" -‐-‐type ChangeInCapacity -‐-‐ cooldown 300

Need to be in quote!

Event Cooldown Event



•  Go to CloudWatch !! •  Create alarms for auto scaling by CPU UNlizaNon

More sensiNve

web

web

web

web



•  CPU UNlizaNon >= 40% à Spin up a new Instance

•  CPU UNlizaNon <= 10% à Remove the Instance web

web

web

web


•  HOp Load GeneraNng – ApacheBench

•  $ ab –n “the # of request” –c “the # of concurrency” URL

Test Auto Scaling

$ ab -‐n 1000000 -‐c 1000 \ hOp://webloadbal-‐vpc-‐652639900.us-‐east-‐1.elb.amazonaws.com/

web web web web web web


1.  as-‐describe-‐auto-‐scaling-‐groups web-‐as-‐group –headers 2.  as-‐update-‐auto-‐scaling-‐group web-‐as-‐group -‐-‐min-‐size 0 -‐-‐

max-‐size 0 3.  as-‐describe-‐auto-‐scaling-‐groups web-‐as-‐group –headers 4.  as-‐delete-‐auto-‐scaling-‐group web-‐as-‐group 5.  as-‐delete-‐launch-‐config web-‐as-‐config 6.  as-‐describe-‐auto-‐scaling-‐groups –headers

Note: All policies associated with dele1ng AS will be removed. Op1onal. 7. Delete Cloudwatch 8. Delete Load Balancer

Delete Auto Scaling


Thank You! Ilho Kim

[email protected]

aws.amazon.com

[mar aws 201] auto scaling demo

Technology

amazon web services

deninve wrioen agreement

separate deninve agreement

discussion purposes

condennality obliganons

c load balancer amazon

auto scaling group

aws cli