Evolving applications-to-serverless
- 2. I am Ankit Sheth Founder, Datavizz Hello! @shethankkit
- 3. What is serverless? Build and run applications without thinking about servers
- 4. Let’s look at the evolution of computing Physical servers in data centers Virtual servers in data centers Virtual servers in the cloud
- 5. Each progressive step was better Physical servers data centers Virtual servers data centers • Higher utilization • Faster provisioning speed • Improved uptime • Disaster recovery • Hardware independence • Trade CAPEX for OPEX • More scale • Elastic resources • Faster speed and agility • Reduced maintenance • Better availability and fault tolerance Virtual servers in the cloud
- 6. But there are still limitations Physical servers data centers Virtual servers data centers • Trade CAPEX for OPEX • More scale • Elastic resources • Faster speed and agility • Reduced maintenance • Better availability and fault tolerance • Still need to administer virtual servers • Still need to manage capacity and utilization • Still need to size workloads • Still need to manage availability, fault tolerance • Still expensive to run intermittent jobs Virtual servers in the cloud
- 7. Evolving to serverless SERVERLESS Virtualservers in the cloud Physical servers in data centers Virtualservers in data centers
- 8. Serverless changes how you deliver Speeds up time to market Dedicated time to innovation Increases developer productivity Eliminates operational complexity
- 9. Chatbots • Powering chatbot logic • Alexa Skills for Amazon Echo Common use cases Web applications • Static websites • Dynamic web apps • Packages for Flask and Express Backends • Apps & services • Mobile • IoT </> Media & Log Processing • Real-time data • Streaming data Big Data • MapReduce • Batch
- 10. How to migrate to serverless?
- 13. Straightforward Migration? Webserver Data AccessService App service Visualization Service Lambda function
- 14. How do we get there? Deploy Develop Design
- 15. Visualization Service App Service Database Amazon S3 Amazon DynamoDB AWS Lambda AmazonAPI Gateway • State? • Compute? • API? • Storage? • Security? • Managed? • Estimatedscale? • Others Where do we start? Design Data Access Service Web Service
- 16. Rough Architecture - Design Data stored in Amazon DynamoDB Dynamic content in AWS Lambda Amazon API Gate way Browser Amazon CloudFront Amazon S3
- 17. Steps to Follow - Design • Create a mind map of services • Start with low risk, non-business critical modules • Migrate incrementally to a newer stack with enough time for stability • Services should have clear bounderies • Every service should have its own data to work upon
- 18. How to Develop? • How to manage codebase? • Which tools to use?
- 19. How to manage codebase? • Should I have one repo/ one service? • Or should I have one repo for all my services?
- 20. How to start development?
- 23. Which tools/frameworks to use?
- 24. Steps to Follow - Develop • Stick to the language you have in-house expertise upon • Equip the developers with Microservices mindset • Standardise the tools that you would be using for development • Stick to one framework and evolve your expretise in it. • Keep the functions simple and "Single-Purposed"
- 25. How to Deploy?
- 26. Aspects to cover • Deployment Framework • CI Tools • Monitoring
- 28. CI Tools
- 29. Monitoring Tools
- 30. Tier Spec Monthly Cost Load Balancer 1x $18.30 Application Server 1 X t2 micro $9.52 Database Server 1 X t2 micro 100 GB $23.95 Total Monthly $51.77 Tier Spec Monthly Cost Load Balancer 1x $18.30 Application Server 2 X m4 large $121.18 Database Server 2 X m4 large 100 GB $198.93 Total Monthly $320.11 “DevelopmentGrade” Stack “Production Grade” Stack What Does it cost now?
- 31. What Does it cost with Serverless? Assumption Unit TotalPages/Day 10 Avg. Size of Page 200 kb API Requests/Page 5 Avg. Size of API Req. 4 Kb DB Ops Per Req 2 1r/1w Storage (per month) 500 kb Tier Monthly Cost Cloud Front Data Transfer 0.0051$ Cloud Front Request Pricing 0.0003 S3 Request Pricing 0.00102$ S3 DataTransfer 0.004345$ API GW DataTransfer 0.00054$ Lambda Request Pricing 0.0003 Lambda Duration Cost 0.000312 Dynamo DB IO Pricing 0 Dynamo DB Storage 0.000125 Total Monthly Cost/User $0.017282 Imagine the following daily customer usage pattern: Cost Per User/Month:
- 32. Thanks! Any Questions? You can find us at ahmedabad@serverlessdays.io