Observing all the Serverless Things • Peter Elger & Guilherme Dalla Rosa • GOTO 2022

This presentation was recorded at GOTO EDA Day 2022. #GOTOcon #GOTOeda #GOTOldn Peter Elger - Co-Founder and CEO of fourTheorem Guilherme Dalla Rosa - Serverless Engineer at fourTheorem ABSTRACT Have you ever thought that your Lambda functions could fail without you even noticing? If the answer is YES, that’s probably because you already “got burned“ by playing with the cloud, where errors and failures are always around the corner. Unfortunately, we can’t prevent all types of failures, but what we can do is try to spot them as soon as possible and react quickly. In order to do that, we need good observability for our serverless applications and therefore we need to become familiar with services like CloudWatch. If you have tried CloudWatch already, you probably know how powerful but also complex it can be. In this talk, we will approach the topic of observability for serverless applications on AWS. We will discuss best practices and how to be effective with CloudWatch. We will also present our open source tool-kit for observability ’SLIC Watch’ which automates away most of the pain of setting up dashboards and alarms in CloudWatch, making it easier to achieve great levels of observability. [...] TIMECODES 00:00 Intro 03:35 Serverless HPC FTW 05:54 A typical case study 07:29 Observability in the cloud 08:14 Can we test our ovservability? 08:55 Alerts flow 09:33 Making sense of alerts 10:23 Initial hypothesis 11:32 Gathering evidence 12:22 Checking timeouts 13:55 Inspecting DynamoDB capacity 14:46 Tracing errors 15:47 HTTP 502 16:50 Lambda CloudWatch logs 17:40 Conclusions 19:51 Before & after 20:25 What we have learned so far 21:09 AWS native observability = CloudWatch 22:08 Alternatives outside AWS 23:21 CloudWatch out of the box 24:32 Getting the best out of CloudWatch 26:33 Best practices 27:00 CloudFormation for CloudWatch alarms 27:18 Can we automate this? 28:10 Intro to SLIC Watch 28:50 How SLIC Watch works 29:48 Before & after SLIC Watch 32:35 Configuration 33:32 How to get started with SLIC Watch 34:51 What if I’m not using serverless framework? 35:18 Roadmap 35:33 Wrap-up 36:10 Outro Read the full abstract here: RECOMMENDED BOOKS Peter Elger & Eoin Shanaghy • AI as a Service • Clements, Buus, Collina & Elger • Node Cookbook • Mario Casciaro & Luciano Mammino • Design Patterns • Adam Bellemare • Building Event-Driven Microservices • Peter Sbarski • Serverless Architectures on AWS • Michael Stack • Event-Driven Architecture in Golang • Ford, Richards, Sadalage & Dehghani • Software Architecture: The Hard Parts • Gerardus Blokdyk • Event-Driven Architecture EDA • #EventDrivenArchitecture #EDA #SoftwareArchitecture #AWS #Serverless #EventDriven #Observability #Cloud #CloudNative #DynamoDB #CloudWatch #SLIC #SLICWatch Looking for a unique learning experience? Attend the next GOTO conference near you! Get your ticket at Sign up for updates and specials at SUBSCRIBE TO OUR CHANNEL - new videos posted almost daily.