Toronto RHUG: Container-native virtualization
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Container-native virtualization enables the integration of virtual machines within OpenShift projects, allowing the coexistence of VMs and application containers on the same nodes. Leveraging Kubernetes-native capabilities, it supports existing VM-based services while evolving its ecosystem with features like kubevirt for managing VMs. This technology is currently in active development with a preview expected in a future OpenShift release.
Toronto RHUG: Container-native virtualization
- 1. CONTAINER-NATIVE VIRTUALIZATION TORONTO RED HAT USER GROUP Stephen Gordon ( @xsgordon / sgordon@redhat.com ) Principal Product Manager, Cloud Platforms @ Red Hat November 20th, 2018
- 2. DISCLAIMER This is active research and development, with a preview expected in an upcoming OpenShift release. There be dragons!
- 3. WHAT DO CONTAINERS HAVE TO DO WITH VIRTUALIZATION?
- 4. THE STORY SO FAR... ● I need a place to install, run, and manage my Kubernetes clusters. ...FOR VIRTUALIZATION IN A CONTAINERIZED WORLD
- 5. THE STORY SO FAR... ● I need a place to install, run, and manage my Kubernetes clusters. => OpenStack, oVirt, VMware, AWS, GCE, Azure, etc. ...FOR VIRTUALIZATION IN A CONTAINERIZED WORLD
- 6. THE STORY SO FAR... ● I need a place to install, run, and manage my Kubernetes clusters. => OpenStack, oVirt, VMware, AWS, GCE, Azure, etc. ● I need a way to provide strict isolation of my application containers. ...FOR VIRTUALIZATION IN A CONTAINERIZED WORLD
- 7. THE STORY SO FAR... ● I need a place to install, run, and manage my Kubernetes clusters. => OpenStack, oVirt, VMware, AWS, GCE, Azure, etc. ● I need a way to provide strict isolation of my application containers. => Katacontainers, gVisor ...FOR VIRTUALIZATION IN A CONTAINERIZED WORLD
- 8. THE STORY SO FAR... ● I need a place to install, run, and manage my Kubernetes clusters. => OpenStack, oVirt, VMware, AWS, GCE, Azure, etc. ● I need a way to provide strict isolation of my application containers. => Katacontainers, gVisor ● We are not going to focus on these today! (sorry!) ...FOR VIRTUALIZATION IN A CONTAINERIZED WORLD
- 9. CONTAINERS AND VIRTUAL MACHINES CONTAINER INFRASTRUCTURE AND ORCHESTRATION Containerized applications and Kubernetes container orchestration as provided by OpenShift are becoming the standard for new applications.
- 10. CONTAINERS AND VIRTUAL MACHINES CONTAINER INFRASTRUCTURE AND ORCHESTRATION Containerized applications and Kubernetes container orchestration as provided by OpenShift are becoming the standard for new applications. VIRTUALIZED WORKLOADS Virtualized workloads are not going anywhere fast!
- 11. CONTAINERS AND VIRTUAL MACHINES CONTAINER INFRASTRUCTURE AND ORCHESTRATION Containerized applications and Kubernetes container orchestration as provided by OpenShift are becoming the standard for new applications. VIRTUALIZED WORKLOADS Virtualized workloads are not going anywhere fast! BARE-METAL RESURGENCE Increasingly customers are pursuing bare-metal clusters for net new business functionality being built in containers.
- 13. WHAT IS CONTAINER-NATIVE VIRTUALIZATION? Add virtual machines to your OpenShift projects as easily as application containers. Easily leverage existing VM-based services from your new workloads!
- 14. EXAMPLE USE CASE - START WITH A VM
- 15. EXAMPLE USE CASE - IMPORT IT! Import Using V2V or from an image.
- 16. EXAMPLE USE CASE - BUILD NEW SERVICES
- 17. EXAMPLE USE CASE - START DECOMPOSING
- 18. CONTAINER-NATIVE VIRTUALIZATION Leverages tried and trusted RHEL & RHV (KVM) virtualization capabilities. Technology Preview access in an upcoming release of OpenShift.
- 19. Container TOGETHER AT LAST Virtual Machine ENTERPRISE CONTAINER HOST Physical Machine Container Resultant virtual machines are able to run side by side directly on the same OpenShift nodes as application containers. {Pods
- 20. LEVERAGE EXISTING ECOSYSTEMS Use native OpenShift Primed storage solutions or existing ecosystem of 80+ battle tested drivers via Container Storage Interface (CSI) “Ember” plug-in. Container Virtual Machine ENTERPRISE CONTAINER HOST Physical Machine Container
- 21. LET’S GO A LITTLE DEEPER...
- 22. KUBEVIRT: THE CNV UPSTREAM ● Integrates directly into existing Kubernetes clusters ● Uses a k8s-native approach whenever possible ● Leverage Container Networking Interface (CNI), Container Storage Interface (CSI), and other k8s-native integrations Operating System Kubernetes Physical Machine VM Pod Regular Pod http://kubevirt.io
- 25. KUBEVIRT ANATOMY Pod Virtual Machine Master Minion virt-handler virt-controller Custom Resource Pod VM Minion virt-handler
- 26. KUBEVIRT ANATOMY Pod Virtual Machine Master Minion virt-handler virt-controller Custom Resource
- 27. • Build on Kubernetes, adding new API-level resources. • Declarative when paired with a controller. $ kubectl get crds NAME AGE datavolumes.cdi.kubevirt.io 5m virtualmachineinstancepresets.kubevirt.io 5m virtualmachineinstancereplicasets.kubevirt.io 5m virtualmachineinstances.kubevirt.io 5m virtualmachines.kubevirt.io 5m CUSTOM RESOURCE DEFINITIONS
- 28. COMPONENTS OF CNV - KubeVirt The virtual machine operator https://github.com/kubevirt/kubevirt/ - Containerized Data Importer (CDI) Importing disks https://github.com/kubevirt/containerized-d ata-importer - OpenShift Web Console With UI extensions https://github.com/kubevirt/web-ui - Containerized Virt-v2v Importing a whole virtual machine https://github.com/kubevirt/v2v-job
- 29. IMPORT PODPV CDI CONTROLLERCREATE REQUEST VM IMAGE DOWNLOAD&CONVERT REFERENCELINK PVC WRITE IMPORT PODPV CDI CONTROLLER CREATE REQUEST VM IMAGE UPLOAD PVC WRITE IMPORTING IMAGES WITH CDI ROUTE
- 30. LET’S TAKE A LOOK!
- 31. Pre-requisites: ● kubectl ● minikube/minishift Notes: ● Yes, we’re running nested virt here - fine for getting started! ● Using upstream bits, for now, in product preview coming! DEMO http://kubevirt.io/get_kubevirt/
- 33. ● We inspected the custom resource definitions ● We imported an image using oc/kubectl ● We created and started a basic VM using oc/kubectl ● We made a change to that VM’s disk ● We cloned the disk and created a new VM ● We checked how the UI looks! DEMO RECAP
- 34. ROADMAP THEMES Production Workloads Embrace the PlatformSupportability (What’s missing today?) Container-native Virtualization is not a drop-in replacement for traditional virtualization today. ● Simplify upgrade process ● Debug tooling support (sosreports, Insights) ● Broad provider support ● Layer-2 Networking ● Live Migration ● Upload image as Template ● Guest agent introspection ● Operators for all! ● Integrated VM management ● Metrics and monitoring
- 35. COLLABORATING? Red Hat: ● We are currently seeking design partners and early adopters willing to: ○ Try out Container-native Virtualization! ○ Give us feedback! ● FAQ ○ https://www.redhat.com/en/resources/container-native-virtualization Upstream Community: ● Website: KubeVirt.io ● GitHub: https://github.com/kubevirt/ ● Mailing List: https://groups.google.com/forum/#!forum/kubevirt-dev ● IRC: #kubevirt on irc.freenode.net