An exploration of serverless Go. Specifically focussing on AWS and tools such as Apex and Up. Extra material can be found here: https://mhemmings.co.uk/blog/go-serverless-golangne/

1. Go Serverless
Mark Hemmings
CTO
Gym Plan

2. Serverless?

3. • Code focussed
• Asynchronous
• Ephemeral
• Stateless
• “Infinitely” scaleable
“Serverless”

4. • AWS Lambda
• Google Cloud Functions (BETA)
• Azure Functions
“Serverless”

5. 👍 Price
• Cheap (many workloads)
• Don’t pay for idle time
• Compute power in 100ms increments
• Don’t over provision

6. 👍 Available
• and regional

7. 👍 Security
• Fine grained
• Who/what invokes
• What runtime can do/access
• Ephemeral, read-only environments
• API Throttling

8. 👍 Easy
• Easy to write
• Do you even code? Maybe not.
• Hard to debug? Maybe.
• Hard to manage and deploy? Not anymore.

9. Anything
Invocation
Objects
Data
HTTP
IoT
Email
Time

10. Demo!

11. Lambda Lifecycle
Event
Response
Code
Resources

12. Demo!

13. –You
“This is tedious.”

15. Apex
• Build, deploy, and manage Lambda functions with ease
• Non-native languages
• Environments and versions
• Infrastructure management using Terraform
• Metrics, logs, and cost analysis

16. Demo!

18. Up
• “Deploy infinitely scalable serverless apps, APIs, and static
websites in seconds”
• Write “vanilla” HTTP servers
• Built-in middleware
• Encrypted env vars (pro)
• Alerting (pro)
• Active warming (pro)

19. Demo!

20. Up
API Gateway Lambda
Up Proxy
Go
Binary
CloudWatch
Internet

21. Final demo!

22. Beware!
• DB connections / IP addresses
• No more Go concurrency
• Use the correct tool

23. Recap
• Learn nuances
• Don’t attempt to manage in the AWS dashboard
• Roll your own? (AWS CLI, CloudFormation, Terraform, SAM)
• Apex for FaaS
• Up for web applications
• Try today!

24. Going Further
• You’ll want to do more and start managing resources together
• AWS Serverless Application Model (SAM)

25. Resources
• Apex: apex.run / github.com/apex/apex
• Up: up.docs.apex.sh / github.com/apex/up
• Slack Support: chat.apex.sh

26. Fin.
@mhemmings