Serverless on Google Cloud

Serverless on Google Cloud

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Mete Atamel

October 14, 2020
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  1. Proprietary + Confidential Serverless on Google Cloud Mete Atamel Developer

    Advocate at Google @meteatamel atamel.dev speakerdeck.com/meteatamel
  2. 01 The Pic-a-Daily: A serverless photo sharing app

  3. A photo-sharing application

  4. A photo-sharing application

  5. Four code labs g.co/codelabs/serverless-workshop

  6. 02 The Serverless spectrum on Google Cloud Platform

  7. Proprietary + Confidential Operational Model Programming Model No Infra Management

    Managed Security Pay only for usage Service-based Event-driven Stateless Serverless
  8. Proprietary + Confidential Virtual Machine OS Application Runtime Application Virtual

    Hardware Dedicated Server OS Application Runtime Application Virtual Hardware Containers OS Application Runtime Application Virtual Hardware Functions Functions Functions Application Platform OS Application Runtime Application Virtual Hardware Functions Serverless OS Application Runtime Application Virtual Hardware Functions Infrastructure Container Platform Function Compute Engine Kubernetes Engine App Engine Cloud Functions On-Premises Serverless Zone Physical Hardware Cloud Run
  9. Proprietary + Confidential Serverless functions Serverless web applications Serverless HTTP

    workloads Source code-based event driven functions Source code-based web apps and API backends HTTP containers fully managed HTTP containers on GKE cluster Cloud Functions App Engine Cloud Run Serverless compute options
  10. Final architecture diagram

  11. 03 Cloud Functions

  12. Back end code functions that automatically run in response to

    a trigger event Microservices Cloud "glue" Node.js, Python, Go, Java Cloud Functions
  13. Cloud Functions as cloud glue Access 20+ Google services from

    GCF Cloud Storage Cloud Pub/Sub HTTPS Firebase Cloud Scheduler Cloud Tasks
  14. Good fit “Serverless” Using Pub/Sub and/or Cloud Storage Don't want

    to think about runtime env Data transformations (ETL) Cloud-based HTTP glue and webhooks Constraints Runtimes: Node.js, Python, Go, Java Function level granularity Must interact via events No custom domain name Concurrency level of 1 (more cold starts) Good fit? Constraints?
  15. Four code labs Lab 1 — Store and analyse pictures

    Storing pictures in Cloud Storage, trigger a Cloud Functions instance Calling the Cloud Vision API for analysis Storing metadata in Cloud Firestore Lab 3 — Run containers on schedule At a regular interval, with Cloud Scheduler Invoking a Cloud Run instance, to create a collage of recent pictures found in Cloud Firestore Storing collage in Cloud Storage Lab 2 — Create thumbnails Cloud Storage notifications sent to Pub/Sub Triggering a Cloud Run instance via Pub/Sub Creating a thumbnail with ImageMagick, and storing back into Cloud Storage Lab 4 — Create a web frontend Creating a web application with App Engine Listing pictures from Cloud Firestore Displaying pictures & collage from Cloud Storage g.co/codelabs/serverless-workshop
  16. 04 Cloud Run

  17. Containers Any language Any library Any binary Ecosystem of base

    images .js .rb .go .py .sh … 0 1 0 1 0 0 1 1 1
  18. Containers Flexibility Serverless Velocity

  19. Cloud Run Fully managed, deploy your workloads and don’t see

    the cluster. Cloud Run on Anthos Deploy into Anthos, run serverless side-by-side with your existing workloads. Knative Everywhere Use the same APIs and tooling anywhere you run Kubernetes with Knative. Serverless containers with Knative & Cloud Run
  20. Container to production in seconds Natively Serverless One experience, where

    you want it Cloud Run Bringing serverless to containers
  21. HTTPS Endpoint Public • Website • API endpoint Private •

    Internal services • Async tasks • Mobile backend • Webhook
  22. Container contract Listen on 0.0.0.0 on port $PORT (default 8080)

    HTTP server must start < 4 min (timeout → 504) Request time < 15 min (default → 5 min) Stateless (in-memory file system, doesn’t persist) Computation only within request (No background activity)
  23. Container resources 1 vCPU per container instance (configurable to 2vCPU)

    256 MiB of memory up to a max of 2 GiB (configurable) 80 concurrent requests per container (configurable 1-80) 1000 max containers by default (configurable 1-1000) Access to a Metadata Server Sandboxed by gVisor
  24. Pay per use CPU / Memory / Requests 100ms

  25. Billable time Instance Billable Time Request 1 Start Request 1

    End Request 2 Start Request 2 End Instance Time Billable Non-billable
  26. Concurrency: up to 80 concurrent requests concurrency = 1 concurrency

    = 80
  27. Pub/Sub triggered internal services Cloud Run Cloud Pub/Sub Queue Queue

    Queue
  28. Storage triggered internal services Cloud Run Cloud Pub/Sub Queue Queue

    Queue Cloud Storage
  29. Scheduled services Command Line Interface (CLI) User Interface (UI) Scheduler

    API Cloud Run Cloud Scheduler
  30. Services part of async tasks Cloud Tasks user_registration user_levelcompleted user_inapppurchase

    user_statechange Daily activity metrics service User profile service Payment processing service Game state service
  31. Proprietary + Confidential Good fit? Constraints? Good fit Stateless HTTP

    request-response workloads Scale: way up, down to zero, bursty Specific runtime requirements: language, dependencies, etc Constraints Must use containers Decide on build process (Cloud Build, etc)
  32. Four code labs Lab 1 — Store and analyse pictures

    Storing pictures in Cloud Storage, trigger a Cloud Functions instance Calling the Cloud Vision API for analysis Storing metadata in Cloud Firestore Lab 3 — Run containers on schedule At a regular interval, with Cloud Scheduler Invoking a Cloud Run instance, to create a collage of recent pictures found in Cloud Firestore Storing collage in Cloud Storage Lab 2 — Create thumbnails Cloud Storage notifications sent to Pub/Sub Triggering a Cloud Run instance via Pub/Sub Creating a thumbnail with ImageMagick, and storing back into Cloud Storage Lab 4 — Create a web frontend Creating a web application with App Engine Listing pictures from Cloud Firestore Displaying pictures & collage from Cloud Storage g.co/codelabs/serverless-workshop
  33. Four code labs Lab 1 — Store and analyse pictures

    Storing pictures in Cloud Storage, trigger a Cloud Functions instance Calling the Cloud Vision API for analysis Storing metadata in Cloud Firestore Lab 3 — Run containers on schedule At a regular interval, with Cloud Scheduler Invoking a Cloud Run instance, to create a collage of recent pictures found in Cloud Firestore Storing collage in Cloud Storage Lab 2 — Create thumbnails Cloud Storage notifications sent to Pub/Sub Triggering a Cloud Run instance via Pub/Sub Creating a thumbnail with ImageMagick, and storing back into Cloud Storage Lab 4 — Create a web frontend Creating a web application with App Engine Listing pictures from Cloud Firestore Displaying pictures & collage from Cloud Storage g.co/codelabs/serverless-workshop
  34. 05 App Engine

  35. Dedicated Server Dedicated Server OS Application Runtime Application Virtual Hardware

    Functions Physical Hardware OS Application Runtime Application Hardware Functions Dedicated Server OS Application Runtime Application Hardware Functions Serverless OS Application Runtime Application Hardware Functions Function Cloud Functions On-Premises Virtual Machine OS Application Runtime Application Hardware Functions Infrastructure Compute Engine Containers OS Application Runtime Application Hardware Functions Container Kubernetes Engine Application Platform OS Application Runtime Application Hardware Functions Platform App Engine Highly customizable Highly managed
  36. What is App Engine? Serverless, but for your whole web

    app and not just single functions. App Engine goal: let developers focus on code, GCP handle the rest Can scale very quickly Open-source, idiomatic experience Use any library, extension, binary, or framework Python, Java, Node.js, PHP, Ruby, Go
  37. App Engine Standard (2nd gen) • Open-source, idiomatic experience •

    Use any extension, binary, or framework • Supported Runtimes ◦ Python 3.7 (3.8 in beta) ◦ Java 11 ◦ Node.js 10 (12 in beta) ◦ PHP 7.3 ◦ Go 1.12 App Engine Flexible • Runs Docker containers • Open source runtimes for Node.js, Ruby, Java, Python, Go, PHP, .NET • Also, if it runs in a Docker container, you can run it ← nearly everything ⚠Not serverless!
  38. App Engine runtimes Standard 1st generation Standard 2nd generation Flexible

    Python 2.X, Java, PHP, Go Node.js 10, Python 3.7, Go 1.12, PHP 7.3, Java 11 Node.js, Ruby, Java, Python, Go, PHP, .NET & custom container images Sandboxed processes Runs on managed VMs GAE specific APIs + GCP APIs Use GCP APIs directly No binary modules / libraries any extension, binary, or framework open-source, idiomatic experience
  39. Concurrency & scaling Traffic Traffic •Scale up/down •Scale-up may lead

    to "cold starts" •One vs. multiple concurrent requests •Traffic splitting across versions •CDN static asset serving
  40. Good fit HTTP/S request-response Stateless serving applications Scaling to high

    traffic CDN static asset serving Constraints Standard (1st gen) • Runtimes for Python, Java, PHP, Go, Node.js Standard (2nd gen) • Can use use binary extensions • Python, Node.js, Java, Go, Ruby, PHP Flexible runtimes • Inherit Docker constraints • Not best for very low traffic sites (no scale to 0) • Slow deploy times Good fit? Constraints?
  41. Four code labs Lab 1 — Store and analyse pictures

    Storing pictures in Cloud Storage, trigger a Cloud Functions instance Calling the Cloud Vision API for analysis Storing metadata in Cloud Firestore Lab 3 — Run containers on schedule At a regular interval, with Cloud Scheduler Invoking a Cloud Run instance, to create a collage of recent pictures found in Cloud Firestore Storing collage in Cloud Storage Lab 2 — Create thumbnails Cloud Storage notifications sent to Pub/Sub Triggering a Cloud Run instance via Pub/Sub Creating a thumbnail with ImageMagick, and storing back into Cloud Storage Lab 4 — Create a web frontend Creating a web application with App Engine Listing pictures from Cloud Firestore Displaying pictures & collage from Cloud Storage g.co/codelabs/serverless-workshop
  42. Proprietary + Confidential Questions & Answers Mete Atamel — @meteatamel