Serverless Observability

bene@theodo.co.uk
Ben Ellerby

@EllerbyBen

Not just Lambda (FaaS)

Lambda

S3

Dynamo

API Gateway

Compute

Storage

Data

API Proxy

Cognito

Auth

SQS

Queue

EventBridge

Event Bus

Lambda Triggers

@EllerbyBen

Know what’s happening

@EllerbyBen

  • The flexibility, distribution and granularity of Serverless architectures makes logging hard.

  • Cloudwatch & XRay are the minimum.

Cloudwatch

@EllerbyBen

  • Collects monitoring and operational data in the form of logs, metrics, and events, providing.

@EllerbyBen

  • Basic Lambda Metrics

@EllerbyBen

  • Dashboards

X-Ray

@EllerbyBen

  • X-Ray provides an end-to-end view of requests as they travel through your application, and shows a map of your application’s underlying components

X-Ray

@EllerbyBen

  • X-Ray provides an end-to-end view of requests as they travel through your application, and shows a map of your application’s underlying components

X-Ray: Lambda

@EllerbyBen

service: myService

provider:
  name: aws
  runtime: nodejs12.x
  tracing:
    lambda: true

X-Ray: Lambda

@EllerbyBen

functions:
  hello:
    handler: handler.hello
    tracing: Active
  goodbye:
    handler: handler.goodbye
    tracing: PassThrough

X-Ray: API Gateway
Active Tracing

@EllerbyBen

# serverless.yml

provider:
  name: aws
  tracing:
    apiGateway: true

@EllerbyBen

@EllerbyBen

@EllerbyBen

@EllerbyBen

@EllerbyBen

Basic logging is a given. Add onto this, X-Ray Logging and specialised third-party Serverless logging providers (and Cloudwatch ServiceLens).

 

Build to make your logs recoverable.

 

@EllerbyBen

@EllerbyBen

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