7. Running on EC2
Steps to complete
Choose region and availability zone
Define architecture
Choose instance types and AMI
Boot & configure instances
Deploy application
…
Profit
7
8. Region and Availability Zone
Regions
Individual EC2 installations
Multiple datacenters a.k.a availability zones
Small differences in pricing
US-east usually gets features first
Availability Zone
Datacenter of instances & volumes
Differently named for different accounts
Traffic within the same zone is free
Different Instance type availability
8
15. 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
16. 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
17. Elastic Load Balancer ELB
Managed Load Balancer
Auto-Scales via Round Robin DNS
Can start/stop instances
Slower and not as flexible as
instance + HAProxy
The only way to scale past 1 Gbit/s!
17
18. 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
19. 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 $15
Standard
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 $496
High-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 $1.20 $878
Quadruple Extra Large 68.4 GB 8 x 3.25 64bit $2.40 $1756
High-CPU
Medium 1.7 GB 2 x 2.5 32bit $0.17 $124
Extra Large 7 GB 8 x 2.5 64bit $0.68 $496
1 ECU = 1.0 – 1.2 GHz Opteron/Xeon from 2007 19
20. Recommendation
Start with
Small for load balancer
Medium for App server
Large for DB server
Tiny for monitoring and utility
Grow to
XL-HighCPU for load balancer
XL-HighCPU for App server
XL-HighMemory for DB server
20
25. Instance Bootstrap
2 Approaches
Images
One image for every server type
All software pre-installed
Few moving parts
Fast boot
25
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
Slower boot
26
27. 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