Awesome JSmicroservices

in the cloud for (almost) free

@gojkoadzichttps://gojko.net

Cloud functions are the mostrevolutionary improvement in

clouds since EC2

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No matter how good I canbecome at (dev)ops, Amazon*

can do it way better...

* Google, Microsoft...

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FILES

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VMs

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Assets

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Apps

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Apis

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financial incentive to keepmodules small, isolated and

loosely coupled

Lambda is almost free● $0.0000002 per request● $0.000000834 for 100ms @ 512MB● First 1 million requests per month are free

execution on tap

● No need to keep spare capacity● No need to worry about failover● Pay per actual usage

code with batteries included● Provisioning + Control● Monitoring● Task dispatching● Balancing● Scaling

trigger with almost anything● File uploads (S3)● DB records added (Dynamo)● Events in stream (Kinesis, CloudWatch)● Workflows (CodeDeploy, SWF, CloudWatch Rules)● Scheduled tasks (CloudWatch Events)● Message queues (SNS)● Web requests (APIGateway)

twin business + tech impact● Ops by magic● Multi-versioning out of the box● Small, isolated modules● Remove a lot of infrastructure code● Testability becomes a challenge

functions, not services● Five minutes or bust● Share nothing● No sessions● No streams● Full utilization = 4-5x dedicated VM price

configuration is … problematic● claudiajs.com● serverless.com● apex.run