AWS Lambda Azure Functions
Google Cloud Functions IBM OpenWhisk
SERVERLESS PLATFORMS
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SERVERLESS
...AS FAR AS YOU ARE CONCERNED
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WHAT IS LAMBDA?
Your executable code
No restrictions
Priced based on:
execution time
quantity
memory
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LAMBDA FREE PLAN/MONTH
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RUN THE NUMBERS
Run a Lambda function every 5 minutes
s/m 1s 5s 10s
128 3,200,000 370 74 37
256 1,600,000 185 37 18
512 800,000 93 18 9
1024 400,000 46 9 5
1536 266,666 31 6 3
0.0025 cents / second thereafter for 1.5G
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GETTING STARTED WITH
LAMBDA
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HOW TO CREATE A LAMBDA
FUNCTION
1. Write the code
2. Setup on AWS
3. Debug
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LAMBDA DEMO
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FRAMEWORKS
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NATIVE GOTCHAS
Lambda runs on an Amazon Linux container...
...and your dev box is probably not Amazon Linux...
...so native NPM modules are problematic
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NATIVE NPM
1. Launch Amazon Linux ec2
2. Use a node version manager
3. Install node 4.3
4. Install the native modules you need
5. Package the modules and dl to your box
6. Deploy
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BUILDING THE DEMO WITH
NODE-LAMBDA
Four files:
1. package.json
2. .env
3. event.json
4. index.js
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LAMBDA BEST PRACTICES
Minimize startup
Core logic into module
Monitor
Delete old functions
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MONITORING 101
the tl;dr version
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COLLECTING DATA IS CHEAP
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COLLECTING DATA IS CHEAP
NOT HAVING IT WHEN YOU NEED IT IS EXPENSIVE
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THE FRAMEWORK
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THE FRAMEWORK
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THE FRAMEWORK
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THE FRAMEWORK
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MONITORING LAMBDA
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WHAT ARE THE LAMBDA
METRICS
aws.lambda.duration, min, max, sum
aws.lambda.errors
aws.lambda.invocations
aws.lambda.throttles
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3 OPTIONS FOR MONITORING
LAMBDA
1. Add a custom metric to CloudWatch
2. Add metric directly to monitoring application
3. Add a line to the CloudWatch logs
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HOW WE DO IT
Add a line to the CloudWatch logs:
! "
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MONITORING EXAMPLE
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MONITORING EXAMPLE
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MONITORING EXAMPLE
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MATT WILLIAMS
EVANGELIST @ DATADOG
[email protected] | @TECHNOVANGELIST