- Documentation
- OpenShift Container Platform
- Container-native virtualization
- Container-native virtualization user's guide
- Virtual machine live migration history
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- About
- Release notes
- Architecture
- Installing
- Installing on AWS
- Configuring an AWS account
- Installing a cluster quickly on AWS
- Installing a cluster on AWS with customizations
- Installing a cluster on AWS with network customizations
- Installing a cluster on AWS using CloudFormation templates
- Installing a cluster on AWS in a restricted network
- Uninstalling a cluster on AWS
- Installing on Azure
- Installing on GCP
- Installing on bare metal
- Installing on IBM Z and LinuxONE
- Installing on OpenStack
- Installing on vSphere
- Gathering installation logs
- Installation configuration
- Installing on AWS
- Updating clusters
- Support
- Web console
- Authentication
- Understanding authentication
- Configuring the internal OAuth server
- Understanding identity provider configuration
- Configuring identity providers
- Configuring an HTPasswd identity provider
- Configuring a Keystone identity provider
- Configuring an LDAP identity provider
- Configuring a basic authentication identity provider
- Configuring a request header identity provider
- Configuring a GitHub or GitHub Enterprise identity provider
- Configuring a GitLab identity provider
- Configuring a Google identity provider
- Configuring an OpenID Connect identity provider
- Configuring certificates
- Using RBAC to define and apply permissions
- Removing the kubeadmin user
- Configuring the user agent
- Understanding and creating service accounts
- Using service accounts in applications
- Using a service account as an OAuth client
- Scoping tokens
- Managing Security Context Constraints
- Impersonating the system:admin user
- Syncing LDAP groups
- Allowing JavaScript-based access to the API server from additional hosts
- Networking
- Understanding networking
- Accessing hosts
- Understanding the Cluster Network Operator (CNO)
- Understanding the DNS Operator
- Understanding the Ingress Operator
- Configuring network policy
- Multiple networks
- Understanding multiple networks
- Attaching a Pod to an additional network
- Removing a Pod from an additional network
- Configuring a bridge network
- Configuring a macvlan network
- Configuring an ipvlan network
- Configuring a host-device network
- Configuring SR-IOV
- Editing an additional network
- Removing an additional network
- OpenShift SDN
- Configuring Routes
- Configuring ingress cluster traffic
- Configuring the cluster-wide proxy
- Configuring a custom PKI
- Storage
- Understanding persistent storage
- Configuring persistent storage
- Persistent storage using Amazon EFS
- Persistent storage using AWS Elastic Block Store
- Persistent storage using Azure Disk
- Persistent storage using Azure File
- Persistent storage using Cinder
- Persistent storage using Container Storage Interface (CSI)
- Persistent storage using Fibre Channel
- Persistent storage using FlexVolume
- Persistent storage using GCE Persistent Disk
- Persistent storage using hostPath
- Persistent Storage using iSCSI
- Persistent storage using local volumes
- Persistent storage using NFS
- Persistent storage using Red Hat OpenShift Container Storage
- Persistent storage using VMware vSphere
- Persistent storage using volume snapshots
- Expanding persistent volumes
- Dynamic provisioning
- Registry
- Operators
- Understanding Operators
- Understanding the Operator Lifecycle Manager (OLM)
- Understanding the OperatorHub
- Adding Operators to a cluster
- Deleting Operators from a cluster
- Creating applications from installed Operators
- Viewing Operator status
- Creating policy for Operator installations and upgrades
- Configuring OLM for restricted networks
- CRDs
- Operator SDK
- Builds
- Understanding image builds
- Understanding build configurations
- Creating build inputs
- Managing build output
- Using build strategies
- Custom image builds with Buildah
- Performing basic builds
- Triggering and modifying builds
- Performing advanced builds
- Using Red Hat subscriptions in builds
- Securing builds by strategy
- Build configuration resources
- Troubleshooting builds
- Setting up additional trusted certificate authorities for builds
- Images
- Applications
- Machine management
- Nodes
- Working with pods
- Controlling pod placement onto nodes (scheduling)
- About pod placement using the scheduler
- Configuring the default scheduler to control pod placement
- Placing pods relative to other pods using pod affinity and anti-affinity rules
- Controlling pod placement on nodes using node affinity rules
- Placing pods onto overcommited nodes
- Controlling pod placement using node taints
- Placing pods on specific nodes using node selectors
- Using Jobs and DaemonSets
- Working with nodes
- Working with containers
- Using containers
- Using Init Containers to perform tasks before a pod is deployed
- Using volumes to persist container data
- Mapping volumes using projected volumes
- Allowing containers to consume API objects
- Copying files to or from a container
- Executing remote commands in a container
- Using port forwarding to access applications in a container
- Using sysctls in containers
- Working with clusters
- Logging
- About cluster logging
- About deploying cluster logging
- Deploying cluster logging
- Upgrading cluster logging
- Deploying and Configuring the Event Router
- Viewing cluster logs
- Viewing cluster logs using Kibana
- Configuring your cluster logging deployment
- About configuring cluster logging
- Changing cluster logging management state
- Configuring cluster logging
- Configuring Elasticsearch
- Configuring Kibana
- Configuring Curator
- Configuring the logging collector
- Using tolerations to control cluster logging pod placement
- Sending logs to external devices
- Configuring systemd-journald for cluster logging
- Viewing Elasticsearch status
- Viewing cluster logging status
- Moving the cluster logging resources with node selectors
- Manually rolling out Elasticsearch
- Troubleshooting Kibana
- Exported fields
- Uninstalling cluster logging
- Monitoring
- Metering
- Scalability and performance
- Backup and restore
- Migration
- Migrating from OpenShift Container Platform 3
- About migrating from OpenShift Container Platform 3 to 4
- Planning your migration from OpenShift Container Platform 3 to 4
- Migration tools and prerequisites
- Deploying the Cluster Application Migration tool
- Configuring a replication repository
- Migrating applications with the CAM web console
- Migrating control plane settings with the Control Plane Migration Assistant
- Troubleshooting
- Migrating from OpenShift Container Platform 4.1
- Migrating from Openshift Container Platform 4.2
- Migrating from OpenShift Container Platform 3
- CLI tools
- OpenShift CLI (oc)
- OpenShift Do developer CLI (odo)
- Understanding odo
- odo architecture
- Installing odo
- Using odo in a restricted environment
- Creating a single-component application with odo
- Creating a multicomponent application with odo
- Creating an application with a database
- Using sample applications
- Managing environment variables in odo
- Configuring the odo CLI
- odo CLI reference
- odo release notes
- Service Mesh
- Container-native virtualization
- Container-native virtualization installation
- Container-native virtualization user's guide
- Creating virtual machines
- TLS certificates for DataVolume imports
- Importing virtual machine images with DataVolumes
- Editing virtual machines
- Deleting virtual machines
- Controlling virtual machines states
- Accessing virtual machine consoles
- Using the CLI tools
- Automating management tasks
- Using the default Pod network with container-native virtualization
- Attaching a virtual machine to multiple networks
- Installing the QEMU guest agent on virtual machines
- Viewing the IP address of vNICs on a virtual machine
- Configuring PXE booting for virtual machines
- Managing guest memory
- Creating virtual machine templates
- Editing a virtual machine template
- Deleting a virtual machine template
- Cloning a virtual machine disk into a new DataVolume
- Cloning a virtual machine by using a DataVolumeTemplate
- Uploading local disk images by using the virtctl tool
- Uploading a local disk image to a block storage DataVolume
- Expanding virtual storage by adding blank disk images
- Preparing CDI scratch space
- Importing virtual machine images to block storage with DataVolumes
- Cloning a virtual machine disk into a new block storage DataVolume
- Virtual machine live migration
- Live migration limits and timeouts
- Migrating a virtual machine instance to another node
- Monitoring live migration of a virtual machine instance
- Cancelling the live migration of a virtual machine instance
- Configuring virtual machine eviction strategy
- Node maintenance mode
- Setting a node to maintenance mode
- Resuming a node from maintenance mode
- Manually refreshing TLS certificates
- Installing VirtIO driver on an existing Windows virtual machine
- Installing VirtIO driver on a new Windows virtual machine
- Viewing logs
- Viewing cluster information
- OpenShift cluster monitoring, logging, and Telemetry
- Collecting container-native virtualization data for Red Hat Support
- Container-native virtualization 2.1 release notes
- Serverless applications
- Getting started with OpenShift Serverless
- OpenShift Serverless product architecture
- Installing OpenShift Serverless
- Getting started with Knative services
- Monitoring OpenShift Serverless components
- Using metering with OpenShift Serverless
- Cluster logging with OpenShift Serverless
- Configuring Knative Serving autoscaling
- Getting started with Knative Client
- Release Notes
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Virtual machine live migration
Understanding live migration
Live migration is the process of moving a running virtual machine instance to
another node in the cluster without interruption to the virtual workload or
access. This can be a manual process, if you select a virtual machine instance
to migrate to another node, or an automatic process, if the
virtual machine instance has a LiveMigrate eviction strategy and the node on
which it is running is placed into maintenance.
|
Virtual machines must have a PersistentVolumeClaim (PVC) with a shared ReadWriteMany (RWX) access mode to be live migrated. |
Additional resources: