Continuously Delivery in Kubernetes
Part and parcel of many microservices-based deployments is an agile approach to development, testing, and delivery. Continuous integration and continuous delivery are specific implementations of these agile processes. By their very nature microservices are small, decoupled, and focused on accomplishing single tasks – and the most successful implementations rely on continuous testing and deployment to minimize the feedback loop and reduce the burden on operations. Containers and Kubernetes are a natural extension of microservices deployments; the former allows applications to be encapsulated in their own operating environment and the latter makes it easy to orchestrate containers inside of a distributed cluster. The goals of Kubernetes are to accelerate development and simplify operations by treating clusters of containers as a single system – but how do you map those concepts back to microservices and continuous delivery? In this talk, we will cover the basics of Kubernetes and show how to set up continuous delivery pipelines using Jenkins and Jenkins Workflow to go from code to deployment, without developers having to interact with the production deployment infrastructure. The goal is an end-to-end set of steps to automate deployment and delivery of an application composed of several microservices. http://sched.co/4WdS
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Continuously Delivery in Kubernetes
- 1. Continuous Delivery in Kubernetes Sandeep Parikh @crcsmnky Solutions Architect Google Cloud Platform
- 2. Why Is This Important Bulletproof process to go from code to production Centralized, repeatable building/tagging/pushing Iterate quickly and reliably Hands off my kubectl
- 3. Continuous Integration TestCode Commit Push TestBuild The ideal development flow
- 4. Continuous Integration TestCode Commit Push TestBuild The ideal development flow Test D’oh! Code Commit Push Test Crap! Build Whoops! The real development flow
- 7. Why Continuous? Fail fast I broke the build! Blame fast Who broke the build? Deliver faster Better software in customers hands!
- 8. Tools
- 9. Jenkins
- 10. Kubernetes Cluster (GKE) Kubernetes Cluster Node 1 Node 3Node 2
- 11. Kubernetes Cluster (GKE) Jenkins Leader Node 1 Node 3Node 2 Jenkins Leader
- 12. Kubernetes Cluster (GKE) Jenkins Service Node 1 Node 3Node 2 Jenkins Leader Jenkins Service
- 13. Kubernetes Cluster (GKE) Jenkins Builder Node 1 Node 3Node 2 Jenkins Leader Jenkins Builder Jenkins Builder Jenkins Builder Jenkins Builder Jenkins Service Jenkins Builder
- 14. Kubernetes Cluster (GKE) Jenkins Proxy Node 1 Node 3Node 2 Jenkins Leader Jenkins Builder Jenkins Builder Jenkins Builder Jenkins Builder Jenkins Service Jenkins Builder nginx
- 15. Kubernetes Cluster (GKE) Jenkins Proxy Service Node 1 Node 3Node 2 Jenkins Leader Jenkins Builder Jenkins Builder Jenkins Builder Jenkins Builder Jenkins Service Jenkins Builder nginx nginx Service
- 16. Microservices
- 18. Kubernetes Cluster (GKE) Microservices Node 2Node 1 Backend Frontend Frontend Backend Service Frontend Frontend Service Backend Backend
- 19. Microservices & Namespaces Virtual clusters backed by the same physical cluster Divide cluster resources by different use cases Supports quotas for managing resources Test, Staging, Production, etc.
- 20. Pods Time Microservices & Rolling Update Replace Replication Controller A with Replication Controller B by updating one Pod at a time. A B A B A B A B A B A B
- 21. Workflow
- 23. Mapping To Jenkins Workflow plugin, Freestyle doesn’t fit Define a flexible, extensible, script-based CD pipeline Groovy for scripting actions Supports human input/approval
- 24. Workflow Repo Kubernetes Cluster (GKE)Github Jenkins µservice µservice Default Staging Production
- 25. Workflow Repo Kubernetes Cluster (GKE)Github Jenkins µservice µservice Default Staging Production 1 Push1
- 26. Workflow Repo Kubernetes Cluster (GKE)Github Jenkins µservice µservice Default Staging Production 1 2 Push Build 1 2
- 27. Workflow Repo Kubernetes Cluster (GKE)Github Jenkins µservice µservice Default Staging Production 1 2 3 Push Build Clone 1 2 3
- 28. Workflow Repo Kubernetes Cluster (GKE)Github Jenkins µservice µservice Default Staging Production 1 2 3 4 Push Build Clone Stage 1 2 3 4
- 29. Workflow Repo Kubernetes Cluster (GKE)Github Jenkins µservice µservice Default Staging Production 1 2 3 5 4 Push Build Clone Stage Approve 1 2 3 4 5
- 30. Workflow Repo Kubernetes Cluster (GKE)Github Jenkins µservice µservice Default Staging Production 1 2 3 5 4 Push Build Clone Stage Approve Deploy 1 2 3 4 5 6 6
- 31. Demo Come find me after the talk and I promise I’ll run it live :)
- 32. Shout Out Give Evan Brown (@evanbrown) a high-five next time you see him. He’s super smart and got this whole thing working.
- 33. Questions, Comments @crcsmnky Repo https://github.com/GoogleCloudPlatform/continuous-deployment-on-kubernetes Docs Automated Image Builds with Jenkins, Packer, and Kubernetes Distributed Load Testing using Kubernetes Real-time data analysis with Kubernetes, Google Cloud Pub/Sub, and BigQuery Real-time data analysis with Kubernetes, Redis, and BigQuery Resources