.NET and Kubernetes: Bringing Legacy .NET Into the Modern World with Pivotal Container Services
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The document discusses the integration of legacy .NET applications with modern Kubernetes and container services, focusing on the transition to Windows containers. It outlines the steps to create and manage containers using Docker and Kubernetes while emphasizing automation, scalability, and high availability in modern architecture. The presentation also highlights the importance of infrastructure resilience and adaptability in deploying applications in cloud environments.
.NET and Kubernetes: Bringing Legacy .NET Into the Modern World with Pivotal Container Services
- 1. .NET and Kubernetes Bringing Legacy .NET Into the Modern World with Pivotal Container Services October 7–10, 2019 Austin Convention Center
- 2. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Safe Harbor Statement The following is intended to outline the general direction of Pivotal's offerings. It is intended for information purposes only and may not be incorporated into any contract. Any information regarding pre-release of Pivotal offerings, future updates or other planned modifications is subject to ongoing evaluation by Pivotal and is subject to change. This information is provided without warranty or any kind, express or implied, and is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions regarding Pivotal's offerings. These purchasing decisions should only be based on features currently available. The development, release, and timing of any features or functionality described for Pivotal's offerings in this presentation remain at the sole discretion of Pivotal. Pivotal has no obligation to update forward looking information in this presentation.
- 3. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ This session - Review existing app environment - About windows containers - Kubernetes decisions - Creating containers with Docker - Working example in K8s - Questions
- 4. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Traditional Architecture ● Server 2008 ● IIS ● Pooling ● Sessions ● Server 2008 ● IIS ● Pooling ● Sessions Windows Server 2008 ● IIS: webform UI ● Pooling ● COM obj MS SQL DB File Share ● Server 2008 ● SMB L o a d B a l a n c e r
- 5. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ What fits in a Windows Container? - Minimal operating system - Full Windows install (C:Windows) - Structured file system (C:, C:Program Files) - Registry - .NET runtime - Different .NET runtimes side by side - host OS is neutral to the version(s) - Patch host operating system with no regard to apps within !! !!
- 6. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ 1. Choose BASE image - compatibility with host OS Create a Windows Container USING windows/servercore2019 Install .net Install IIS Copy in app PS C: docker build my-app PS C: docker push my-app 2. Write DockerFile 3. Build the container image 4. Push the image to a repository
- 7. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Choosing Kubernetes ➔ Tenancy model Using clusters, namespaces, selectors ➔ Bring your own container Script the environment with docker file ➔ Assemble your own routing Define ingress and attach DNS ➔ Persistent disks Make the app(s) resilient to failures ➔ Long running processes Expect the workloads to not “move around”
- 8. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ A goal of acting modern ➔ Container everything Everything lives in a container ➔ Automate everything Software defined & build pipelines ➔ Stream logs Write to console and let the platform handle it ➔ Loosely coupled services Service info is “fed” to the app, not coded within ➔ Assume failures Session info held external, disks are mapped ➔ High availability Run multiple instances that are distributed in IaaS ➔ Cloud everything Make everything as portable as possible
- 9. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ What do you want to “own” DIY k8s or container stack Embedded OS OS Image Runtime Layer Service Brokerage Application Layer Platform Provided App Team provided Embedded OS OS Image Runtime Layer Service Brokerage Application Layer Platform Provided App Team Provided Embedded OS OS Image Runtime Layer Service Brokerage Application Layer App Team Provided
- 10. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ Zero code change with containers - Review the docker file and deployment model -
- 11. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ A Working Example - See it in action -
- 12. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ K8 Cluster Modern Architecture: Kubernetes cluster L o a d B a l a n c e r Kubernetes
- 13. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ K8 Cluster Modern Architecture: Kubernetes pod and config L o a d B a l a n c e r Kubernetes K8 Pod ConfigMap Volumes etc
- 14. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ K8 Cluster K8 Pod Modern Architecture: Windows container L o a d B a l a n c e r Kubernetes ConfigMap Volumes etc Windows Container ● IIS ● WebForm UI ● COM obj
- 15. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ K8 Cluster K8 Pod Windows Container ● IIS ● WebForm UI ● COM obj Modern Architecture L o a d B a l a n c e r MS SQL DB File Share ● Server 2008 ● SMB Kubernetes ConfigMap Volumes etc
- 16. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ A New World Unlocked - All the possibilities on a modern platform -
- 17. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ K8 Cluster K8 Pod Modern Architecture: Scale pods L o a d B a l a n c e r MS SQL DB File Share ● Server 2008 ● SMB Kubernetes ConfigMap Volumes etc Windows Container ● IIS ● WebForm UI ● COM obj
- 18. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ K8 Cluster K8 Pod Modern Architecture: Scale clusters L o a d B a l a n c e r MS SQL DB File Share ● Server 2008 ● SMB Kubernetes ConfigMap Volumes etc Windows Container ● IIS ● WebForm UI ● COM obj
- 19. Unless otherwise indicated, these slides are © 2013-2019 Pivotal Software, Inc. and licensed under a Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/ K8 Cluster K8 Pod Windows Container ● IIS ● WebForm UI ● COM obj Modern Architecture: Persistent disks L o a d B a l a n c e r MS SQL DB Kubernetes ConfigMap etc Persistent Volume Mount
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