Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Serverless Ops – Bye-bye Bash, Hello Go! - Rob Sutter - Amazon

6e3ea86995d93d35c0fadf2694bca773?s=47 GoDays
January 23, 2020

Serverless Ops – Bye-bye Bash, Hello Go! - Rob Sutter - Amazon

Learn how to use Go to automate tasks like security incident response, disaster recovery plan testing, and test environment population – all without running a single server! By creating AWS Lambda functions using Go you can minimize your own management overhead while creating tools that are more readable, fault tolerant, testable, and performant than shell scripts.

In this talk I'll walk through various common operations tasks and show how Go and AWS Lambda can be the two of the most flexible tools in your tool box. I'll also show how to get started quickly to solve almost any operations issue while still maintaining good software development practices.

This session is for anyone looking to simplify their operations responsibilities or interested in learning more about serverless functions and Go. Basic familiarity with Go is helpful, but not required.

6e3ea86995d93d35c0fadf2694bca773?s=128

GoDays

January 23, 2020
Tweet

Transcript

  1. © 2020, Amazon Web Services, Inc. or its Affiliates. Rob

    Sutter GoDays Berlin – 23 January 2020 Serverless Ops Bye-bye Bash, Hello Go!
  2. © 2020, Amazon Web Services, Inc. or its Affiliates. What’s

    in it for you? • Use the power of serverless to keep the rest of your resources running • Example of testing your apps ops • A pattern for orchestrating IT operations workflows in the cloud • A complete serverless IT operations workflow with code in Go • Q&A
  3. © 2020, Amazon Web Services, Inc. or its Affiliates. Agenda

    • Where’s my shell?! • But there are still servers! • Why serverless for ops? • Why choose Go for ops? • Testing our apps ops • General pattern • Example – AWS Backup DynamoDB rotator • Q&A
  4. © 2020, Amazon Web Services, Inc. or its Affiliates. Who

    am I? Rob Sutter – robsut@amazon.com, @rts_rob • Senior Developer Advocate – Serverless • Gopher (and Scala type – shhh…) • Previously: • Co-founded WorkFone, a SaaS startup • Infrastructure at Le Tote, an e-commerce startup • Consulting, government, odd jobs here and there • The Florida State University, Management Information Systems ‘05
  5. © 2020, Amazon Web Services, Inc. or its Affiliates. Where’s

    my shell?!
  6. © 2020, Amazon Web Services, Inc. or its Affiliates. Where’s

    my shell?! • Instances are hidden behind bastion servers and SSH tunnels • Containers are even trickier with sidecars and other workarounds • With managed services the shell concept doesn’t even exist! Photo by Ahmed Sobah on Unsplash
  7. © 2020, Amazon Web Services, Inc. or its Affiliates. But

    there are still servers!
  8. © 2020, Amazon Web Services, Inc. or its Affiliates. No

    infrastructure provisioning, no management Automatic scaling Pay for value Highly available and secure What is serverless?
  9. © 2020, Amazon Web Services, Inc. or its Affiliates. Why

    serverless for ops?
  10. © 2020, Amazon Web Services, Inc. or its Affiliates. Comparison

    of operational responsibility AWS Lambda Serverless functions AWS Fargate Serverless containers ECS/EKS Container-management as a service EC2 Infrastructure-as-a-Service More opinionated Less opinionated AWS manages Customer manages • Data source integrations • Physical hardware, software, networking, and facilities • Provisioning • Application code • Container orchestration, provisioning • Cluster scaling • Physical hardware, host OS/kernel, networking, and facilities • Application code • Data source integrations • Security config and updates, network config, management tasks • Container orchestration control plane • Physical hardware software, networking, and facilities • Application code • Data source integrations • Work clusters • Security config and updates, network config, firewall, management tasks • Physical hardware software, networking, and facilities • Application code • Data source integrations • Scaling • Security config and updates, network config, management tasks • Provisioning, managing scaling and patching of servers
  11. © 2020, Amazon Web Services, Inc. or its Affiliates. Why

    serverless for ops? • Operations and automation tasks are irregularly executed • Runs in same the platform as your infrastructure • Takes advantage of service integrations • Fine-grained access permissions • Logging
  12. © 2020, Amazon Web Services, Inc. or its Affiliates. Why

    choose Go for ops?
  13. © 2020, Amazon Web Services, Inc. or its Affiliates. Why

    choose Go for ops? • Long support life • Concurrency • Type safety • Developer joy!
  14. © 2020, Amazon Web Services, Inc. or its Affiliates. Testing

    our apps ops
  15. © 2020, Amazon Web Services, Inc. or its Affiliates. Write

    real tests • Use dependency injection to mock cloud services
  16. © 2020, Amazon Web Services, Inc. or its Affiliates. General

    pattern
  17. © 2020, Amazon Web Services, Inc. or its Affiliates. State

    machine-based workflow management Initiate ops event, e.g., backup, restore, scale Check for completion Sleep for a defined period with back-off Return to sleep state or notify on completion
  18. © 2020, Amazon Web Services, Inc. or its Affiliates. AWS

    Step Functions • Coordinate multiple services into serverless workflows • Like the func main() of a procedural serverless app • Error handling • Retries and backoff
  19. © 2020, Amazon Web Services, Inc. or its Affiliates. Example

    AWS Backup DynamoDB rotator
  20. © 2020, Amazon Web Services, Inc. or its Affiliates. AWS

    Backup DynamoDB rotator
  21. © 2020, Amazon Web Services, Inc. or its Affiliates. AWS

    Backup DynamoDB rotator https://github.com/awslabs/aws-backup-dynamodb-rotator AWS Cloud AWS Step Functions AWS Lambda Lambda function Amazon DynamoDB AWS Backup Amazon Simple Notification Service Amazon DynamoDB
  22. © 2020, Amazon Web Services, Inc. or its Affiliates. AWS

    Backup DynamoDB rotator https://github.com/awslabs/aws-backup-dynamodb-rotator
  23. © 2020, Amazon Web Services, Inc. or its Affiliates. AWS

    Backup DynamoDB rotator https://github.com/awslabs/aws-backup-dynamodb-rotator
  24. © 2020, Amazon Web Services, Inc. or its Affiliates. Q&A

    Rob Sutter @rts_rob
  25. © 2020, Amazon Web Services, Inc. or its Affiliates. Thank

    you!