Simplifying Serverless best practices

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AWS Lambda Powertools
Simplifying Serverless best practices
@heitor_lessa
Heitor Lessa
Principal Solutions Architect

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AWS operational responsibility models
On-Premises Cloud
Less More
Compute Virtual Machine
Amazon EC2 AWS Elastic Beanstalk AWS LambdaAWS Fargate
Databases DB
MySQL on EC2 Amazon RDS MySQL Amazon Aurora Aurora Serverless
Storage Storage
Amazon S3
Messaging ESBs
Amazon MQ Amazon Kinesis
Analytics
Hadoop on EC2 Amazon EMR Amazon Elasticsearch
Service
Amazon Athena
Amazon QLDB / DynamoDB
Amazon Event Bridge / SNS / SQS
Amazon Elastic File System
Insights
AWS GlueAmazon Redshift
Amazon MSK

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Serverless Lens in AWS Well-Architected Tool
N
ew

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Serverless Lens in AWS Well-Architected Tool

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AWS Lambda Powertools
Logger
Metrics
Tracer
+ Utilities
awslabs / aws-lambda-powertools-python

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[INFO] <timestamp> <msg>
Structured
Logging
Recap
Raw
Semi-structured
Structured
[INFO] ... {“message”: <msg> }
{“level”: “INFO”, “message”: <msg> }
Canonical [timestamp] <operation> meta=data
timestamp | operation | key=value |…
SampleType

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[INFO] 2020-01-31T22:.. 1c8df7d3… Hello world
Result
Structured
Logging
Before

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[INFO] … {“message”: “Hello world”}
Result
Structured
Logging
Before

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Structured
Logging
Before
{
"asctime": "2020-07-12...",
"levelname": "INFO",
"name": "root",
"message": "Aha!"
}
Result

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Structured
Logging
After
{
"timestamp": "2020-07-14...",
"level": "INFO",
"location": "collect.handler:5",
"service": "payment",
"sampling_rate": 0.0,
"message": ”Aha!”
}
Result

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Structured
Logging
After
{
…
"lambda_function_name":..,
"lambda_function_memory_size": 128,
"lambda_function_arn": ”…",
"lambda_request_id": "52fd..",
"cold_start": true,
}
Result

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Tracing
Recap
Trace
Segment
Sub-segment
API Gateway Lambda Fargate
DynamoDB
API Gateway
S3 bucket
Type Key Value Namespace
Annotation UserId a1c8k...
Metadata Cart {….} Checkout
Legend Trace metadata

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Tracing
Setup

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Tracing
Setup
Result

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Tracing
Before

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Tracing
Before
Result

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Tracing
Before

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Tracing
Before
Result

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Tracing
After

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Tracing
After

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Metrics
Recap

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Metrics
Step 1
Synchronous

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Metrics
Step 2
Synchronous

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Metrics
Step 3
Asynchronous

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Metrics
Step 3
Asynchronous

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Metrics
Step 4
Asynchronous

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Metrics
Step 5
Asynchronous

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Metrics
Step 5
Asynchronous

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Metrics
Step 5
Asynchronous
Result

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Metrics
Result

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Logger
Tracer
Metrics
All-in-one
Environment variable Value
POWERTOOLS_SERVICE_NAME shopping-cart
POWERTOOLS_METRICS_NAMESPACE e-commerce-app
LOG_LEVEL INFO

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Summary
awslabs / aws-lambda-powertools-python

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Demo examples
aws-samples / aws-serverless-airline aws-samples / aws-serverless-shopping-cart aws-samples / serverless-ecommerce-platform

40. Thank you!
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Heitor Lessa
Principal Solutions Architect
@heitor_lessa