Growing Up With AWS

Transcript

1. Growing Up With AWS Michael Hamrah / Riadh Amari 1
2. Namely An HR SaaS 550+ Employees 140+ Engineers
3. 3 A Story of Growth
4. 4 AWS Bills Payments
5. 5 Observability Continuous Integration Continuous Delivery/Deployment Runtime (Kubernetes/Docker/App Servers) Server Infrastructure (AWS) Operations Configuration Management Environment Management Foundational Infrastructure Ease of Development, Testing and Delivery Meeting Production SLOs Security
6. 6 SignalFx, Logz.io, New Relic Jenkins Spinnaker/Octopus Kubernetes + Istio AWS Spinnaker, kubectl, Kubernetes, ad-hoc Kubernetes/Octopus Terraform Foundational Infrastructure Ease of Development, Testing and Delivery Meeting Production SLOs IAM, RBAC, Networking, VPN, Secrets
7. There is no right answer, only various degrees of wrong. We experiment, learn, decide, act, rinse, repeat and improve!
8. 8 Welcome to Namely Infra AWS (Virginia) Production 10.50.0.0/16 Int 10.52.0.0/16 Stage 10.51.0.0/16 VendorX 10.53.0.0/16 Ops 10.54.0.0/16 Portal IT 172.16.0.0/16 An environment is: • An AWS account and permissions • A VPC • Route tables • Everything required to run Namely • The ability to deploy components
12. 12 Environment Basics a Peering Public ELB(s) Internet Gateway Server1 Server2 Jumpboxes Server3 VPC A bunch of RDS Alotta ElasticCache Some Aurora CloudFront S3 Kubernetes 15 workers 3 masters 5 etcd
13. 13 $17,000/mo on NAT Gateways 380 TB
14. VPC Endpoints
15. 15 $1,500/mo on NAT Gateways 33 TB
16. 16 Kubernetes Cluster Etcd0 Etcd1 Etcd2 Etcd3 Etcd4 Master0 Master1 Master2 Worker0 Worker2 Worker3 Worker1 Worker... Worker15 State is stored here Does most of the k8s work Where stuff runs
17. 17 EKS Cluster Worker0 Worker2 Worker3 Worker1 Worker... Worker15 Where stuff runs Better networking
18. 18 Latency Improvements with EKS
19. OOPS, I IOPS’ED Datawarehouse : EC2 + MSSQL Server (Data across multiple EBS) I/O Concurrency issues => Latency Transition Volume Type from gp2 to io1 with no downtime I IOPS’ED
20. 20 RDS : Multiple DB flavors (MySQL, Postgres, Aurora) Issue: Replication lag too high (Read Replica =Latency) for the nightly refreshes. Solution: Enabling IOPS (Master + Read Replicas)! I IOPS’ED
21. DB Encryption Master KMS keys shared across accounts! EBS volumes encrypted at rest for EC2. RDS Encryption enabled! Encryption of data in Transit Compliance NY State Cybersecurity Requirements for Financial Services
22. ElastiCache : Redis Heavy usage of Redis: 50+ instances(Millions Keys)! Transitioning from Redis instances to Redis clusters: Sharding + data partitioning
23. 23 Automation: Terraform
25. 25 200+ Load Balancers
26. Reserved Instances
28. Things we’re curious about • Container evolution (EKS -> Fargate) • Transit Gateway • Aurora Postgres HA • Lambda • EC2 Optimizations • Better Account Management
29. Everything is an Investment We want a return. We must build up on what we’ve done.