Running on Amazon EC2

Running on Amazon EC2Jonathan Weiss

ScalariumAmazon EC2 Cluster Management  Auto-Conﬁg  Self-Healing  Auto-Scaling  One-click-deploymentwww.scalarium.com 2

Amazon Elastic Compute Cloud Virtual Server via API call Pay per hour Different instance types in different regions 4

EC2 Features Spot instances Elastic IP Elastic Load Balancing CloudWatch Auto Scaling Virtual Private Cloud Elastic Block Storage 5

Running on EC2Setting up an app 6

Running on EC2Steps to complete  Choose region and availability zone  Define architecture  Choose instance types and AMI  Boot & configure instances  Deploy application  …  Profit 7

Region and Availability ZoneRegions  Individual EC2 installations  Multiple datacenters a.k.a availability zones  Small differences in pricing  US-east usually gets features ﬁrstAvailability Zone  Datacenter of instances & volumes  Differently named for different accounts  Trafﬁc within the same zone is free  Different Instance type availability 8

Existing Availability ZonesUS-EAST-1 US-WEST-1 EU-WEST-1 AP-SOUTHEAST-1  us-east-1a  us-west-1a  eu-west-1a  ap-southeast-1a  us-east-1b  us-west-1b  eu-west-1b  ap-southeast-1b  us-east-1c  us-west-1c  us-east-1d 9

Single AZ DeploymentMost common and simple setupNot very different from typical setup 10

Multi AZ Deployment 11

Architecture 12

Architecture 13

Architecture 14

Elastic IP Static, public IP in contrast to instance IP Associate to any instance (~15s) Paying when not in use Use for DNS of load balancer 15

Elastic Block Store EBS Network based block device: 1GB – 1TB Persistent & redundant Can be used by one instance at a time Incremental Snapshots RAID for better performance 16

Elastic Load Balancer ELB Managed Load Balancer Auto-Scales via Round Robin DNS Can start/stop instances Slower and not as ﬂexible as instance + HAProxyThe only way to scale past 1 Gbit/s! 17

Relational Data Store RDS Managed MySQL instance Choose instance size, pay ~ 30% premium Hot-Failover and read replication available Deﬁne a 4h maintenance window Better performance than single EBS- backed instance 18

Instance Types Hourly Cost Monthly Cost RAM Cores x ECU Arch (US-East) (US-East)Micro Tiny 613 MB Burst 1 x 2 32bit/64bit $0.02 $15Standard Small 1.7 GB 1x1 32bit $0.085 $62 Large 7.5 GB 2x2 64bit $0.34 $248 Extra Large 15 GB 4x2 64bit $0.68 $496High-Memory Extra Large 17.1 GB 2 x 3.25 64bit $0.50 $366 Double Extra Large 34.2 GB 4 x 3.25 64bit $1.00 $732 Quadruple Extra Large 68.4 GB 8 x 3.25 64bit $2.00 $1464High-CPU Medium 1.7 GB 2 x 2.5 32bit $0.17 $124 Extra Large 7 GB 8 x 2.5 64bit $0.68 $4961 ECU = 1.0 – 1.2 GHz Opteron/Xeon from 2007 19

RecommendationStart with  Small for load balancer  Medium for App server  Large for DB server  Tiny for monitoring and utilityGrow to  XL-HighCPU for load balancer  XL-HighCPU for App server  XL-HighMemory for DB server 20

Reserved Instances Pay amount upfront and you get: Hourly price ~ 33% Guaranteed availability 24/7 instance cost: ~ 55% Recommended! 21

Running on EC2Steps to complete  Choose region and availability zone  Define architecture  Choose instance types  Boot & configure instances  Deploy application  …  Profit 22

Instance ConﬁgurationFrom blank Linux to your PHP app server 23

Instance Bootstrap 2 Approaches 24

Instance Bootstrap 2 Approaches Images  One image for every server type  All software pre-installed  Few moving parts  Fast boot 25

Instance Bootstrap 2 Approaches Images Scripted  One image for every server type  One image to rule them all  All software pre-installed  Smallest common denominator  Few moving parts  Acquires configuration on start  Fast boot  Installs & configures during boot process to fit role  All parts moving  Slower boot 26

Instance Bootstrap 2 Approaches Images Scripted  One image for every server type  One image to rule them all  All software pre-installed  Smallest common denominator  Few moving parts  Acquires configuration on start  Fast boot  Installs & configures during boot process to fit role  All parts moving  Slow boot 27

ChefOpen Source Provisioning Tool  Conﬁgures your servers  Cookbooks & recipes  Ruby DSL 28

Chef 29

Chef Solo 30

MemcachedSolo 31

Chef Solo Run Conﬁguration JSON Run Chef Solo 32

DeployingDeploy resource  Compatible with Capistrano layout  Supports Capistrano hooks via deploy/hook_name.rb  Async! 33

Chef Experiences Great so far, but  Not idempotent  Unintuitive 2 phases  Documentation could be better  Example Cookbooks often so so 34

Running on EC2Steps to complete  Choose region and availability zone  Define architecture  Choose instance types  Boot & configure instances  Deploy application  …  Profit 35

The Project Browser game hosted on EC2 1.2 million Daily Active Users (DAU) ~ 130 server ~ 120.000 requests per minute on average

Flexibility and Scalability

Q&APeritor GmbHBlücherstr. 22, Hof III Aufgang 610961 BerlinTel.: +49 (0)30 69 20 09 84 0Fax: +49 (0)30 69 20 09 84 9Internet: www.peritor.comE-Mail: info@peritor.com© Peritor GmbH - Alle Rechte vorbehalten

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Running on Amazon EC2

by Jonathan Weiss

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