KUBEVIRT.IOBLOGSVIDEOSGALLERYDOCSLABSCOMMUNITY KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized. More specifically, the technology provides a unified development platform where developers can build, modify, and deploy applications residing
in
INSTALLATION
Installation¶. KubeVirt is a virtualization add-on to Kubernetes and this guide assumes that a Kubernetes cluster is already installed. If installed on OKD, the web console is ARCHITECTURE
Architecture¶ VirtualMachine¶. A VirtualMachine provides additional management capabilities to a VirtualMachineInstance inside the cluster. That includes: ABI stability. Start/stop/restart capabilities on the controller level. Offline configuration change with propagation on VirtualMachineInstance recreation KUBEVIRT: INSTALLING MICROSOFT WINDOWS FROM AN ISOSEE MORE ON KUBEVIRT.IO
VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. INTERFACES AND NETWORKS Interfaces and Networks¶. Connecting a virtual machine to a network consists of two parts. First, networks are specified in spec.networks.Then, interfaces backed by the networks are added to the VM by specifying them in spec.domain.devices.interfaces. Each interface must have a corresponding network with the same name. VIRTCTL CLIENT TOOL
virtctl Client Tool¶ Retrieving the virtctl client tool¶. Basic VirtualMachineInstance operations can be performed with the stock kubectl utility. However, the virtctl binary utility is required to use advanced features such as:. Serial and graphical console access SERVICE OBJECTS
Service objects¶. Once the VirtualMachineInstance is started, in order to connect to a VirtualMachineInstance, you can create a Service object for a VirtualMachineInstance. Currently, three types of service are supported: ClusterIP, NodePort and LoadBalancer.The default type is ClusterIP. Note: Labels on a VirtualMachineInstance are passed through to the pod, so simply add your labels for STARTUP SCRIPTS
Startup Scripts. KubeVirt supports the ability to assign a startup script to a VirtualMachineInstance instance which is executed automatically when the VM initializes. These scripts are commonly used to automate injection of users and SSH keys into VMs in order to provide remote access to the machine. For example, a startup script can be used
NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
KUBEVIRT.IOBLOGSVIDEOSGALLERYDOCSLABSCOMMUNITY KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized. More specifically, the technology provides a unified development platform where developers can build, modify, and deploy applications residing in
INSTALLATION
Installation¶. KubeVirt is a virtualization add-on to Kubernetes and this guide assumes that a Kubernetes cluster is already installed. If installed on OKD, the web console is ARCHITECTURE
Architecture¶ VirtualMachine¶. A VirtualMachine provides additional management capabilities to a VirtualMachineInstance inside the cluster. That includes: ABI stability. Start/stop/restart capabilities on the controller level. Offline configuration change with propagation on VirtualMachineInstance recreation KUBEVIRT: INSTALLING MICROSOFT WINDOWS FROM AN ISOSEE MORE ON KUBEVIRT.IO
VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. INTERFACES AND NETWORKS Interfaces and Networks¶. Connecting a virtual machine to a network consists of two parts. First, networks are specified in spec.networks.Then, interfaces backed by the networks are added to the VM by specifying them in spec.domain.devices.interfaces. Each interface must have a corresponding network with the same name. VIRTCTL CLIENT TOOL
virtctl Client Tool¶ Retrieving the virtctl client tool¶. Basic VirtualMachineInstance operations can be performed with the stock kubectl utility. However, the virtctl binary utility is required to use advanced features such as:. Serial and graphical console access SERVICE OBJECTS
Service objects¶. Once the VirtualMachineInstance is started, in order to connect to a VirtualMachineInstance, you can create a Service object for a VirtualMachineInstance. Currently, three types of service are supported: ClusterIP, NodePort and LoadBalancer.The default type is ClusterIP. Note: Labels on a VirtualMachineInstance are passed through to the pod, so simply add your labels for STARTUP SCRIPTS
Startup Scripts. KubeVirt supports the ability to assign a startup script to a VirtualMachineInstance instance which is executed automatically when the VM initializes. These scripts are commonly used to automate injection of users and SSH keys into VMs in order to provide remote access to the machine. For example, a startup script can be used
NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
KUBEVIRT USER-GUIDE
Documentation for KubeVirt. Welcome¶. This page is provided as the entrypoint to the different topics of this user-guide. USE KUBEVIRT
Manage Virtual Machines (optional): To get a list of existing Virtual Machines. Note the running status. kubectl get vms kubectl get vms -o yaml testvm. To start a Virtual Machine you can use: ./virtctl start testvm. If you installed virtctl via krew, you can use kubectl virt: # Start the virtual machine: kubectl virt start testvm # Stop the STARTUP SCRIPTS
Startup Scripts. KubeVirt supports the ability to assign a startup script to a VirtualMachineInstance instance which is executed automatically when the VM initializes. These scripts are commonly used to automate injection of users and SSH keys into VMs in order to provide remote access to the machine. For example, a startup script can be used
KUBEVIRT VM IMAGE USAGE PATTERNS Example: Import an image from an http or s3 endpoint. While I’m not going to provide a detailed example here, another option for importing VM images into a PVC is to host the image on an http server (or as an s3 object) and then use a DataVolume to import the VM image into the PVC from a URL.
WINDOWS VIRTIO DRIVERS KubeVirt distributes virtio drivers for Microsoft Windows in a form of container disk. The package contains the virtio drivers and QEMU guest agent. The disk was tested on Microsoft Windows Server 2012. Supported Windows version is XP and up. The package is intended to be used as CD-ROM attached to the virtual machine with Microsoft Windows. NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
DEDICATED CPU RESOURCES Kubernetes CPU manager is a mechanism that affects the scheduling of workloads, placing it on a host which can allocate Guaranteed resources and pin certain Pod's containers to host pCPUs, if the following requirements are met: Pod's QoS is Guaranteed. resources requests and limits are equal. all containers in the Pod express CPU and memory
HOW TO IMPORT VM INTO KUBEVIRT A PersistentVolume can be in filesystem or block mode:. Filesystem: For KubeVirt to be able to consume the disk present on a PersistentVolume’s filesystem, the disk must be named disk.img and be placed in the root path of the filesystem. Currently the disk is also required to be in raw format.. Important: The disk.img image file needs to be owned by the user-id 107 in order to avoid BOOTING FROM EXTERNAL SOURCE Booting From External Source¶. When installing a new guest virtual machine OS, it is often useful to boot directly from a kernel and initrd stored in the host physical machine OS, allowing command line arguments to be passed directly to the installer. CONTAINERIZED DATA IMPORTER Containerized Data Importer¶. The Containerized Data Importer (CDI) project provides facilities for enabling Persistent Volume Claims (PVCs) to be used as disks for KubeVirt VMs by way of DataVolumes.The three main CDI use cases are: Import a disk image from a web server or container registry to a DataVolume; Clone an existing PVC to a DataVolume
KUBEVIRT.IOBLOGSVIDEOSGALLERYDOCSLABSCOMMUNITY KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized. More specifically, the technology provides a unified development platform where developers can build, modify, and deploy applications residing in
INSTALLATION
Installation¶. KubeVirt is a virtualization add-on to Kubernetes and this guide assumes that a Kubernetes cluster is already installed. If installed on OKD, the web console is ARCHITECTURE
Architecture¶ VirtualMachine¶. A VirtualMachine provides additional management capabilities to a VirtualMachineInstance inside the cluster. That includes: ABI stability. Start/stop/restart capabilities on the controller level. Offline configuration change with propagation on VirtualMachineInstance recreation KUBEVIRT: INSTALLING MICROSOFT WINDOWS FROM AN ISOSEE MORE ON KUBEVIRT.IO
VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. INTERFACES AND NETWORKS Interfaces and Networks¶. Connecting a virtual machine to a network consists of two parts. First, networks are specified in spec.networks.Then, interfaces backed by the networks are added to the VM by specifying them in spec.domain.devices.interfaces. Each interface must have a corresponding network with the same name. VIRTCTL CLIENT TOOL
virtctl Client Tool¶ Retrieving the virtctl client tool¶. Basic VirtualMachineInstance operations can be performed with the stock kubectl utility. However, the virtctl binary utility is required to use advanced features such as:. Serial and graphical console access SERVICE OBJECTS
Service objects¶. Once the VirtualMachineInstance is started, in order to connect to a VirtualMachineInstance, you can create a Service object for a VirtualMachineInstance. Currently, three types of service are supported: ClusterIP, NodePort and LoadBalancer.The default type is ClusterIP. Note: Labels on a VirtualMachineInstance are passed through to the pod, so simply add your labels for STARTUP SCRIPTS
Startup Scripts. KubeVirt supports the ability to assign a startup script to a VirtualMachineInstance instance which is executed automatically when the VM initializes. These scripts are commonly used to automate injection of users and SSH keys into VMs in order to provide remote access to the machine. For example, a startup script can be used
NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
KUBEVIRT.IOBLOGSVIDEOSGALLERYDOCSLABSCOMMUNITY KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized. More specifically, the technology provides a unified development platform where developers can build, modify, and deploy applications residing in
INSTALLATION
Installation¶. KubeVirt is a virtualization add-on to Kubernetes and this guide assumes that a Kubernetes cluster is already installed. If installed on OKD, the web console is ARCHITECTURE
Architecture¶ VirtualMachine¶. A VirtualMachine provides additional management capabilities to a VirtualMachineInstance inside the cluster. That includes: ABI stability. Start/stop/restart capabilities on the controller level. Offline configuration change with propagation on VirtualMachineInstance recreation KUBEVIRT: INSTALLING MICROSOFT WINDOWS FROM AN ISOSEE MORE ON KUBEVIRT.IO
VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. INTERFACES AND NETWORKS Interfaces and Networks¶. Connecting a virtual machine to a network consists of two parts. First, networks are specified in spec.networks.Then, interfaces backed by the networks are added to the VM by specifying them in spec.domain.devices.interfaces. Each interface must have a corresponding network with the same name. VIRTCTL CLIENT TOOL
virtctl Client Tool¶ Retrieving the virtctl client tool¶. Basic VirtualMachineInstance operations can be performed with the stock kubectl utility. However, the virtctl binary utility is required to use advanced features such as:. Serial and graphical console access SERVICE OBJECTS
Service objects¶. Once the VirtualMachineInstance is started, in order to connect to a VirtualMachineInstance, you can create a Service object for a VirtualMachineInstance. Currently, three types of service are supported: ClusterIP, NodePort and LoadBalancer.The default type is ClusterIP. Note: Labels on a VirtualMachineInstance are passed through to the pod, so simply add your labels for STARTUP SCRIPTS
Startup Scripts. KubeVirt supports the ability to assign a startup script to a VirtualMachineInstance instance which is executed automatically when the VM initializes. These scripts are commonly used to automate injection of users and SSH keys into VMs in order to provide remote access to the machine. For example, a startup script can be used
NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
KUBEVIRT USER-GUIDE
Documentation for KubeVirt. Welcome¶. This page is provided as the entrypoint to the different topics of this user-guide. USE KUBEVIRT
Manage Virtual Machines (optional): To get a list of existing Virtual Machines. Note the running status. kubectl get vms kubectl get vms -o yaml testvm. To start a Virtual Machine you can use: ./virtctl start testvm. If you installed virtctl via krew, you can use kubectl virt: # Start the virtual machine: kubectl virt start testvm # Stop the STARTUP SCRIPTS
Startup Scripts. KubeVirt supports the ability to assign a startup script to a VirtualMachineInstance instance which is executed automatically when the VM initializes. These scripts are commonly used to automate injection of users and SSH keys into VMs in order to provide remote access to the machine. For example, a startup script can be used
KUBEVIRT VM IMAGE USAGE PATTERNS Example: Import an image from an http or s3 endpoint. While I’m not going to provide a detailed example here, another option for importing VM images into a PVC is to host the image on an http server (or as an s3 object) and then use a DataVolume to import the VM image into the PVC from a URL.
WINDOWS VIRTIO DRIVERS KubeVirt distributes virtio drivers for Microsoft Windows in a form of container disk. The package contains the virtio drivers and QEMU guest agent. The disk was tested on Microsoft Windows Server 2012. Supported Windows version is XP and up. The package is intended to be used as CD-ROM attached to the virtual machine with Microsoft Windows. NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
DEDICATED CPU RESOURCES Kubernetes CPU manager is a mechanism that affects the scheduling of workloads, placing it on a host which can allocate Guaranteed resources and pin certain Pod's containers to host pCPUs, if the following requirements are met: Pod's QoS is Guaranteed. resources requests and limits are equal. all containers in the Pod express CPU and memory
HOW TO IMPORT VM INTO KUBEVIRT A PersistentVolume can be in filesystem or block mode:. Filesystem: For KubeVirt to be able to consume the disk present on a PersistentVolume’s filesystem, the disk must be named disk.img and be placed in the root path of the filesystem. Currently the disk is also required to be in raw format.. Important: The disk.img image file needs to be owned by the user-id 107 in order to avoid BOOTING FROM EXTERNAL SOURCE Booting From External Source¶. When installing a new guest virtual machine OS, it is often useful to boot directly from a kernel and initrd stored in the host physical machine OS, allowing command line arguments to be passed directly to the installer. CONTAINERIZED DATA IMPORTER Containerized Data Importer¶. The Containerized Data Importer (CDI) project provides facilities for enabling Persistent Volume Claims (PVCs) to be used as disks for KubeVirt VMs by way of DataVolumes.The three main CDI use cases are: Import a disk image from a web server or container registry to a DataVolume; Clone an existing PVC to a DataVolume
KUBEVIRT.IOBLOGSVIDEOSGALLERYDOCSLABSCOMMUNITY KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized. More specifically, the technology provides a unified development platform where developers can build, modify, and deploy applications residing in
INSTALLATION
Installation¶. KubeVirt is a virtualization add-on to Kubernetes and this guide assumes that a Kubernetes cluster is already installed. If installed on OKD, the web console is ARCHITECTURE
Architecture¶ VirtualMachine¶. A VirtualMachine provides additional management capabilities to a VirtualMachineInstance inside the cluster. That includes: ABI stability. Start/stop/restart capabilities on the controller level. Offline configuration change with propagation on VirtualMachineInstance recreation KUBEVIRT: INSTALLING MICROSOFT WINDOWS FROM AN ISOSEE MORE ON KUBEVIRT.IO
VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. INTERFACES AND NETWORKS Interfaces and Networks¶. Connecting a virtual machine to a network consists of two parts. First, networks are specified in spec.networks.Then, interfaces backed by the networks are added to the VM by specifying them in spec.domain.devices.interfaces. Each interface must have a corresponding network with the same name. VIRTCTL CLIENT TOOL
virtctl Client Tool¶ Retrieving the virtctl client tool¶. Basic VirtualMachineInstance operations can be performed with the stock kubectl utility. However, the virtctl binary utility is required to use advanced features such as:. Serial and graphical console access SERVICE OBJECTS
Service objects¶. Once the VirtualMachineInstance is started, in order to connect to a VirtualMachineInstance, you can create a Service object for a VirtualMachineInstance. Currently, three types of service are supported: ClusterIP, NodePort and LoadBalancer.The default type is ClusterIP. Note: Labels on a VirtualMachineInstance are passed through to the pod, so simply add your labels for STARTUP SCRIPTS
Startup Scripts. KubeVirt supports the ability to assign a startup script to a VirtualMachineInstance instance which is executed automatically when the VM initializes. These scripts are commonly used to automate injection of users and SSH keys into VMs in order to provide remote access to the machine. For example, a startup script can be used
NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
KUBEVIRT.IOBLOGSVIDEOSGALLERYDOCSLABSCOMMUNITY KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized. More specifically, the technology provides a unified development platform where developers can build, modify, and deploy applications residing in
INSTALLATION
Installation¶. KubeVirt is a virtualization add-on to Kubernetes and this guide assumes that a Kubernetes cluster is already installed. If installed on OKD, the web console is ARCHITECTURE
Architecture¶ VirtualMachine¶. A VirtualMachine provides additional management capabilities to a VirtualMachineInstance inside the cluster. That includes: ABI stability. Start/stop/restart capabilities on the controller level. Offline configuration change with propagation on VirtualMachineInstance recreation KUBEVIRT: INSTALLING MICROSOFT WINDOWS FROM AN ISOSEE MORE ON KUBEVIRT.IO
VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. INTERFACES AND NETWORKS Interfaces and Networks¶. Connecting a virtual machine to a network consists of two parts. First, networks are specified in spec.networks.Then, interfaces backed by the networks are added to the VM by specifying them in spec.domain.devices.interfaces. Each interface must have a corresponding network with the same name. VIRTCTL CLIENT TOOL
virtctl Client Tool¶ Retrieving the virtctl client tool¶. Basic VirtualMachineInstance operations can be performed with the stock kubectl utility. However, the virtctl binary utility is required to use advanced features such as:. Serial and graphical console access SERVICE OBJECTS
Service objects¶. Once the VirtualMachineInstance is started, in order to connect to a VirtualMachineInstance, you can create a Service object for a VirtualMachineInstance. Currently, three types of service are supported: ClusterIP, NodePort and LoadBalancer.The default type is ClusterIP. Note: Labels on a VirtualMachineInstance are passed through to the pod, so simply add your labels for STARTUP SCRIPTS
Startup Scripts. KubeVirt supports the ability to assign a startup script to a VirtualMachineInstance instance which is executed automatically when the VM initializes. These scripts are commonly used to automate injection of users and SSH keys into VMs in order to provide remote access to the machine. For example, a startup script can be used
NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
KUBEVIRT USER-GUIDE
Documentation for KubeVirt. Welcome¶. This page is provided as the entrypoint to the different topics of this user-guide. USE KUBEVIRT
Manage Virtual Machines (optional): To get a list of existing Virtual Machines. Note the running status. kubectl get vms kubectl get vms -o yaml testvm. To start a Virtual Machine you can use: ./virtctl start testvm. If you installed virtctl via krew, you can use kubectl virt: # Start the virtual machine: kubectl virt start testvm # Stop the STARTUP SCRIPTS
Startup Scripts. KubeVirt supports the ability to assign a startup script to a VirtualMachineInstance instance which is executed automatically when the VM initializes. These scripts are commonly used to automate injection of users and SSH keys into VMs in order to provide remote access to the machine. For example, a startup script can be used
KUBEVIRT VM IMAGE USAGE PATTERNS Example: Import an image from an http or s3 endpoint. While I’m not going to provide a detailed example here, another option for importing VM images into a PVC is to host the image on an http server (or as an s3 object) and then use a DataVolume to import the VM image into the PVC from a URL.
WINDOWS VIRTIO DRIVERS KubeVirt distributes virtio drivers for Microsoft Windows in a form of container disk. The package contains the virtio drivers and QEMU guest agent. The disk was tested on Microsoft Windows Server 2012. Supported Windows version is XP and up. The package is intended to be used as CD-ROM attached to the virtual machine with Microsoft Windows. NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
DEDICATED CPU RESOURCES Kubernetes CPU manager is a mechanism that affects the scheduling of workloads, placing it on a host which can allocate Guaranteed resources and pin certain Pod's containers to host pCPUs, if the following requirements are met: Pod's QoS is Guaranteed. resources requests and limits are equal. all containers in the Pod express CPU and memory
HOW TO IMPORT VM INTO KUBEVIRT A PersistentVolume can be in filesystem or block mode:. Filesystem: For KubeVirt to be able to consume the disk present on a PersistentVolume’s filesystem, the disk must be named disk.img and be placed in the root path of the filesystem. Currently the disk is also required to be in raw format.. Important: The disk.img image file needs to be owned by the user-id 107 in order to avoid BOOTING FROM EXTERNAL SOURCE Booting From External Source¶. When installing a new guest virtual machine OS, it is often useful to boot directly from a kernel and initrd stored in the host physical machine OS, allowing command line arguments to be passed directly to the installer. CONTAINERIZED DATA IMPORTER Containerized Data Importer¶. The Containerized Data Importer (CDI) project provides facilities for enabling Persistent Volume Claims (PVCs) to be used as disks for KubeVirt VMs by way of DataVolumes.The three main CDI use cases are: Import a disk image from a web server or container registry to a DataVolume; Clone an existing PVC to a DataVolume
KUBEVIRT.IOBLOGSVIDEOSGALLERYDOCSLABSCOMMUNITY KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized. More specifically, the technology provides a unified development platform where developers can build, modify, and deploy applications residing in
KUBEVIRT: INSTALLING MICROSOFT WINDOWS FROM AN ISOSEE MORE ON KUBEVIRT.IO
INSTALLATION
Installation¶. KubeVirt is a virtualization add-on to Kubernetes and this guide assumes that a Kubernetes cluster is already installed. If installed on OKD, the web console is ARCHITECTURE
Architecture¶ VirtualMachine¶. A VirtualMachine provides additional management capabilities to a VirtualMachineInstance inside the cluster. That includes: ABI stability. Start/stop/restart capabilities on the controller level. Offline configuration change with propagation on VirtualMachineInstance recreation VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. INTERFACES AND NETWORKS Interfaces and Networks¶. Connecting a virtual machine to a network consists of two parts. First, networks are specified in spec.networks.Then, interfaces backed by the networks are added to the VM by specifying them in spec.domain.devices.interfaces. Each interface must have a corresponding network with the same name. VIRTCTL CLIENT TOOL
virtctl Client Tool¶ Retrieving the virtctl client tool¶. Basic VirtualMachineInstance operations can be performed with the stock kubectl utility. However, the virtctl binary utility is required to use advanced features such as:. Serial and graphical console access USING INTEL VGPUS WITH KUBEVIRT Kubevirt has supported the use of GPUs including GPU passthrough and vGPU since v0.22.0 back in 2019. This support was centered around one specific vendor, and only worked with expensive enterprise class cards and required additional licensing. Starting with Kubevirt 0.40 support for detecting and allocating the Intel based vGPUs has been added SERVICE OBJECTS
Service objects¶. Once the VirtualMachineInstance is started, in order to connect to a VirtualMachineInstance, you can create a Service object for a VirtualMachineInstance. Currently, three types of service are supported: ClusterIP, NodePort and LoadBalancer.The default type is ClusterIP. Note: Labels on a VirtualMachineInstance are passed through to the pod, so simply add your labels for NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
KUBEVIRT.IOBLOGSVIDEOSGALLERYDOCSLABSCOMMUNITY KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized. More specifically, the technology provides a unified development platform where developers can build, modify, and deploy applications residing in
KUBEVIRT: INSTALLING MICROSOFT WINDOWS FROM AN ISOSEE MORE ON KUBEVIRT.IO
INSTALLATION
Installation¶. KubeVirt is a virtualization add-on to Kubernetes and this guide assumes that a Kubernetes cluster is already installed. If installed on OKD, the web console is ARCHITECTURE
Architecture¶ VirtualMachine¶. A VirtualMachine provides additional management capabilities to a VirtualMachineInstance inside the cluster. That includes: ABI stability. Start/stop/restart capabilities on the controller level. Offline configuration change with propagation on VirtualMachineInstance recreation VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. INTERFACES AND NETWORKS Interfaces and Networks¶. Connecting a virtual machine to a network consists of two parts. First, networks are specified in spec.networks.Then, interfaces backed by the networks are added to the VM by specifying them in spec.domain.devices.interfaces. Each interface must have a corresponding network with the same name. VIRTCTL CLIENT TOOL
virtctl Client Tool¶ Retrieving the virtctl client tool¶. Basic VirtualMachineInstance operations can be performed with the stock kubectl utility. However, the virtctl binary utility is required to use advanced features such as:. Serial and graphical console access USING INTEL VGPUS WITH KUBEVIRT Kubevirt has supported the use of GPUs including GPU passthrough and vGPU since v0.22.0 back in 2019. This support was centered around one specific vendor, and only worked with expensive enterprise class cards and required additional licensing. Starting with Kubevirt 0.40 support for detecting and allocating the Intel based vGPUs has been added SERVICE OBJECTS
Service objects¶. Once the VirtualMachineInstance is started, in order to connect to a VirtualMachineInstance, you can create a Service object for a VirtualMachineInstance. Currently, three types of service are supported: ClusterIP, NodePort and LoadBalancer.The default type is ClusterIP. Note: Labels on a VirtualMachineInstance are passed through to the pod, so simply add your labels for NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. KUBEVIRT USER-GUIDE
Documentation for KubeVirt. Welcome¶. This page is provided as the entrypoint to the different topics of this user-guide. KUBEVIRT UPGRADES
Virtual Machine Management on Kubernetes. Once the PHASE will change to Running, we’re ready for upgrading KubeVirt.. Define the next version to upgrade to. KubeVirt starting from v0.17.0 onwards, allows to upgrade one version at a time, by using two approaches as defined in the user-guide:. Patching the imageTag value in the KubeVirt CR spec
KUBEVIRT VM IMAGE USAGE PATTERNS Step 2. Import your image to a PVC in the image namespace. Below are a few options for importing. For each example, I’m using the Fedora Cloud x86_64 qcow2 image that can be downloaded here. If you try these examples yourself, you’ll need to download the current Fedora-Cloud-Base qcow2 image file in your working directory. WINDOWS VIRTIO DRIVERS KubeVirt distributes virtio drivers for Microsoft Windows in a form of container disk. The package contains the virtio drivers and QEMU guest agent. The disk was tested on Microsoft Windows Server 2012. Supported Windows version is XP and up. The package is intended to be used as CD-ROM attached to the virtual machine with Microsoft Windows. STARTUP SCRIPTS
Startup Scripts. KubeVirt supports the ability to assign a startup script to a VirtualMachineInstance instance which is executed automatically when the VM initializes. These scripts are commonly used to automate injection of users and SSH keys into VMs in order to provide remote access to the machine. For example, a startup script can be used
NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
DEDICATED CPU RESOURCES Kubernetes CPU manager is a mechanism that affects the scheduling of workloads, placing it on a host which can allocate Guaranteed resources and pin certain Pod's containers to host pCPUs, if the following requirements are met: Pod's QoS is Guaranteed. resources requests and limits are equal. all containers in the Pod express CPU and memory
ADVANCED SCHEDULING USING AFFINITY AND ANTI Advanced scheduling using affinity and anti-affinity rules. This blog post shows how KubeVirt can take advantage of Kubernetes inner features to provide an advanced scheduling mechanism to virtual machines (VMs). The same or even more complex affinity and anti-affinity rules can be assigned to VMs or Pods in Kubernetes than in traditional
ACTIVATING FEATURE GATES Activating feature gates¶. KubeVirt has a set of features that are not mature enough to be enabled by default. As such, they are protected by a Kubernetes concept called feature gates. How to KUBEVIRT.IOBLOGSVIDEOSGALLERYDOCSLABSCOMMUNITY KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized. More specifically, the technology provides a unified development platform where developers can build, modify, and deploy applications residing in
KUBEVIRT: INSTALLING MICROSOFT WINDOWS FROM AN ISOSEE MORE ON KUBEVIRT.IO
INSTALLATION
Installation¶. KubeVirt is a virtualization add-on to Kubernetes and this guide assumes that a Kubernetes cluster is already installed. If installed on OKD, the web console is KUBEVIRT USER-GUIDE
Documentation for KubeVirt. Welcome¶. This page is provided as the entrypoint to the different topics of this user-guide. VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. VIRTCTL CLIENT TOOL
virtctl Client Tool¶ Retrieving the virtctl client tool¶. Basic VirtualMachineInstance operations can be performed with the stock kubectl utility. However, the virtctl binary utility is required to use advanced features such as:. Serial and graphical console access INTERFACES AND NETWORKS Interfaces and Networks¶. Connecting a virtual machine to a network consists of two parts. First, networks are specified in spec.networks.Then, interfaces backed by the networks are added to the VM by specifying them in spec.domain.devices.interfaces. Each interface must have a corresponding network with the same name. SERVICE OBJECTS
Service objects¶. Once the VirtualMachineInstance is started, in order to connect to a VirtualMachineInstance, you can create a Service object for a VirtualMachineInstance. Currently, three types of service are supported: ClusterIP, NodePort and LoadBalancer.The default type is ClusterIP. Note: Labels on a VirtualMachineInstance are passed through to the pod, so simply add your labels for EXPERIMENT WITH CDI
Experiment with the Containerized Data Importer (CDI) You can experiment this lab online at. CDI is a utility designed to import Virtual Machine images for use with Kubevirt. At a high level, a PersistentVolumeClaim (PVC) is created. A custom controller watches for importer specific claims, and when discovered, starts an import process to
NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
KUBEVIRT.IOBLOGSVIDEOSGALLERYDOCSLABSCOMMUNITY Why KubeVirt? KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized. More specifically, the technology provides a unified development platform where developers can build, modify, and deploy applications residing in both Application Containers as well KUBEVIRT: INSTALLING MICROSOFT WINDOWS FROM AN ISOSEE MORE ON KUBEVIRT.IO
INSTALLATION
Installation¶. KubeVirt is a virtualization add-on to Kubernetes and this guide assumes that a Kubernetes cluster is already installed. If installed on OKD, the web console is KUBEVIRT USER-GUIDE
Documentation for KubeVirt. Welcome¶. This page is provided as the entrypoint to the different topics of this user-guide. VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. INTERFACES AND NETWORKS Interfaces and Networks¶. Connecting a virtual machine to a network consists of two parts. First, networks are specified in spec.networks.Then, interfaces backed by the networks are added to the VM by specifying them in spec.domain.devices.interfaces. Each interface must have a corresponding network with the same name. VIRTCTL CLIENT TOOL
virtctl Client Tool¶ Retrieving the virtctl client tool¶. Basic VirtualMachineInstance operations can be performed with the stock kubectl utility. However, the virtctl binary utility is required to use advanced features such as:. Serial and graphical console access EXPERIMENT WITH CDI
Experiment with the Containerized Data Importer (CDI) You can experiment this lab online at . CDI is a utility designed to import Virtual Machine images for use with Kubevirt.. At a high level, a PersistentVolumeClaim (PVC) is created. SERVICE OBJECTS
Service objects¶. Once the VirtualMachineInstance is started, in order to connect to a VirtualMachineInstance, you can create a Service object for a VirtualMachineInstance. Currently, three types of service are supported: ClusterIP, NodePort and LoadBalancer.The default type is ClusterIP. Note: Labels on a VirtualMachineInstance are passed through to the pod, so simply add your labels for NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
ARCHITECTURE
Architecture¶ VirtualMachine¶. A VirtualMachine provides additional management capabilities to a VirtualMachineInstance inside the cluster. That includes: ABI stability. Start/stop/restart capabilities on the controller level. Offline configuration change with propagation on VirtualMachineInstance recreation VIRTUAL MACHINES INSTANCES Virtual Machines Instances¶. The VirtualMachineInstance type conceptionally has two parts:. Information for making scheduling decisions. Information about the virtual machine ABI. Every VirtualMachineInstance object represents a single running virtual machine instance.. API Overview¶. With the installation of KubeVirt, new types are added to the Kubernetes API to manage Virtual Machines. KUBEVIRT QUICKSTART WITH CLOUD PROVIDERS Verify components. By default KubeVirt will deploy 7 pods, 3 services, 1 daemonset, 3 deployment apps, 3 replica sets. Check the deployment: kubectl get kubevirt.kubevirt.io/kubevirt -n kubevirt -o=jsonpath=" {.status.phase}" Check the components: kubectl get all -n kubevirt. USE KUBEVIRT
Manage Virtual Machines (optional): To get a list of existing Virtual Machines. Note the running status. kubectl get vms kubectl get vms -o yaml testvm. To start a Virtual Machine you can use: ./virtctl start testvm. If you installed virtctl via krew, you can use kubectl virt: # Start the virtual machine: kubectl virt start testvm # Stop the NODE ASSIGNMENT
Node assignment¶. You can constrain the VM to only run on specific nodes or to prefer running on specific nodes: nodeSelector; Affinity and anti-affinity
USING INTEL VGPUS WITH KUBEVIRT Kubevirt has supported the use of GPUs including GPU passthrough and vGPU since v0.22.0 back in 2019. This support was centered around one specific vendor, and only worked with expensive enterprise class cards and required additional licensing. Starting with Kubevirt 0.40 support for detecting and allocating the Intel based vGPUs has been added STARTUP SCRIPTS
Startup Scripts. KubeVirt supports the ability to assign a startup script to a VirtualMachineInstance instance which is executed automatically when the VM initializes. These scripts are commonly used to automate injection of users and SSH keys into VMs in order to provide remote access to the machine. For example, a startup script can be used
CONTAINERIZED DATA IMPORTER Containerized Data Importer¶. The Containerized Data Importer (CDI) project provides facilities for enabling Persistent Volume Claims (PVCs) to be used as disks for KubeVirt VMs by way of DataVolumes.The three main CDI use cases are: Import a disk image from a web server or container registry to a DataVolume; Clone an existing PVC to a DataVolume
ACTIVATING FEATURE GATES Activating feature gates¶. KubeVirt has a set of features that are not mature enough to be enabled by default. As such, they are protected by a Kubernetes concept called feature gates. How to KUBEVIRT.IO
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WHY KUBEVIRT?
KubeVirt technology addresses the needs of development teams that have adopted or want to adopt Kubernetes but possess existing Virtual Machine-based workloads that cannot be easily containerized. More specifically, the technology provides a unified development platform where developers can build, modify, and deploy applications residing in both Application Containers as well as Virtual Machines in a common, shared environment. Benefits are broad and significant. Teams with a reliance on existing virtual machine-based workloads are empowered to rapidly containerize applications. With virtualized workloads placed directly in development workflows, teams can decompose them over time while still leveraging remaining virtualized components as is comfortably desired. WHAT CAN I DO WITH KUBEVIRT? Leverage KubeVirt and Kubernetes to manage virtual machines for impractical-to-containerize apps. Combine existing virtualized workloads with new container workloads on the one platform.
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