DCEU 18: Docker for Windows Containers and Kubernetes
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Carl Fischer - Sr. Product Manager, Docker, Inc Simon Ferquel - Senior Developer, Docker As Kubernetes support for Windows Server nears general availability, mixed Windows Server and Linux applications are becoming commonplace for both legacy application migration and greenfield development. Combined, these drive a need to enable the use of best-of-breed components within an application, regardless of platform. In this talk, we’ll review current Docker and Windows capabilities, and demonstrate a proof of concept using Docker Desktop for side-by-side Windows and Linux development using Kubernetes in a single environment. Finally, we’ll take a look at plans for adding similar support in Docker Enterprise. You’ll leave this session with an understanding of the key areas Docker is exploring to combine Linux and Windows workloads with Kubernetes, Docker’s plans for expanding Windows Server Support in Docker Enterprise to Kubernetes orchestration, and how you can deliver applications comprised of Windows Server and Linux components using Kubernetes orchestration.
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DCEU 18: Docker for Windows Containers and Kubernetes
- 1. Docker for Windows Containers and Kubernetes
- 2. Senior Software Engineer @ Docker @sferquel Simon Ferquel Senior Product Manager @ Docker @carl_fischer Carl Fischer
- 3. • Docker and Windows today • Develop for mixed clusters with Docker Desktop • Roadmap going forward Agenda
- 4. Windows Server capabilities today Docker Engine - Enterprise for Windows Server ● 500K downloads Docker Enterprise workers ● Windows Server 2016, 1709, 1803 ● Mixed Linux / Windows clusters Docker Application Convertor ● Containerize legacy Windows apps Docker Certified Infrastructure ● Install and Configure Enterprise Windows workers
- 5. Windows Desktop capabilities today Docker Desktop for Windows ● 450K monthly users ● K8s + Linux today ● K8s + Windows in the future ● Linux Containers on Windows Docker Desktop Enterprise ● Mass deployment ● Configuration templates and lock-in ● Version Packs
- 6. Version Release Date Engine Features Docker Enterprise 2.0.0 Q1 2018 17.06 Mixed Windows and Linux clusters with Windows Server 2016 Docker Enterprise 2.0.x Q2 2018 17.06 Added Windows Server 1709, 1803 support with ● Easy image compatibility ● Smaller image sizes Docker Enterprise 2.1 Q3 2018 18.09 Added support for Windows Server 1709, 1803, 2019* with ● Ingress and VIP networking * Due to Windows Server 2019 delays support will be delivered via a Docker Enterprise 2.1 patch release CY18 Docker Enterprise Roadmap
- 7. State of the K8s + Windows world Community GA target: K8s 1.14, ~ March 2019 Challenges with initial GA ● Running on current infrastructures ○ Requires Server 2019 ● Running the majority of legacy .NET apps ○ Lack of gMSA credential handling
- 8. K8s + Server 2008 EoL Migration K8s project GA for Windows Pure upstream open-source Mar 2019* Jun 2019 Jul-Aug 2019 2020 Products add K8s + Win support This will basically be their 1.0 release of Windows support of any kind POCs start on K8s + Win “First Project” phase begins Windows 2008 EOL... How many legacy apps can be migrated to K8s by then ? * Estimated
- 9. Docker Enterprise provides options Swarm support today for ● Windows Server 2016+ ● gMSA container authentication Seamless migration of workloads between Swarm and K8s with Compose on Kubernetes Start legacy migration now without having to wait for K8s Windows GA
- 10. A Journey to Kubernetes + Windows
- 11. Work in progress Docker for Desktop ● Prototype @ Microsoft Ignite 2018 ● Compose support @ DockerCon EU ● GA: CY19 (on Edge) Docker Enterprise ● Early prototype
- 13. Docker Desktop with Mixed Kubernetes Leverage existing architecture ● Master node running on LinuxKit VM ● Windows host as a Worker node Networking ● Configurable Services and Pods CIDRs ● Custom CNI driver on the Windows Side
- 14. Mixed clusters & mixed workloads ● All PODs should have a node affinity ● Persistent Volume Claims might require different options affinity: nodeAffinity: requiredDuringSchedulingIgnoredDuringExecution: nodeSelectorTerms: - matchExpressions: - key: beta.kubernetes.io/os operator: In values: - windows - key: beta.kubernetes.io/arch operator: In values: - amd64
- 15. Compose on Kubernetes Swarm-style placement work “as is” win-service: image: aspnet-service deploy: placement: constraints: - "node.platform.os == windows" linux-service: image: aspnet-service deploy: placement: constraints: - "node.platform.os == linux"
- 16. Demo: Docker Desktop with Mixed Kubernetes
- 18. Docker + Microsoft Roadmap Q1 2019 ● Expanded platform support via Server 2019 / Swarm Next Docker Enterprise release ● K8s Windows workers ● Improved gMSA UX and security Windows Futures ● Windows platform gMSA improvements
- 19. Wrap Up ● Docker has wide support for Windows today ● We are actively prototyping a developer experience for mixed Linux and Windows Kubernetes workloads ● Docker Enterprise support for Kubernetes Windows workers is coming ● Compose on Kubernetes will enable seamless migration from Swarm to Kubernetes when available
- 20. Windows Server Migration Program Advisory & implementation services to help you plan and migrate your legacy Windows Server application portfolio WS 2008 ASP.NET ASP.NET Docker Enterprise WS 2016+ Docker Application Converter automatically generates a Dockerfile https://dockr.ly/WindowsServerUpgrade
- 21. https://dockr.ly/WindowsServerUpgrade Migrate Legacy Windows Before End of Support For more information visit:
- 22. https://dockr.ly/Forrester Get the Forrester Report on Container Platforms For more information visit:
- 23. Take A Breakout Survey Access your session and/or workshop surveys for the conference at any time by tapping the Sessions link on the navigation menu or block on the home screen. Find the session/workshop you attended and tap on it to view the session details. On this page, you will find a link to the survey.
- 24. Questions?