About the OpenShift SDN default CNI network provider - OpenShift SDN default CNI network provider | Networking

This is a cache of https://docs.openshift.com/container-platform/4.7/networking/openshift_sdn/about-openshift-sdn.html. It is a snapshot of the page at 2024-11-22T21:46:40.160+0000.

About the OpenShift SDN default CNI network provider - OpenShift SDN default CNI network provider | Networking | OpenShift Container Platform 4.7

About
- Welcome
- Learn more about OpenShift Container Platform
- About OpenShift Kubernetes Engine
- Kubernetes overview
- Legal notice
Release notes
- OpenShift Container Platform 4.7 release notes
Architecture
- Architecture overview
- Product architecture
- Installation and update
- The control plane
- Understanding OpenShift development
- Red Hat Enterprise Linux CoreOS
- Admission plug-ins
Installing
- Installation overview
- Selecting an installation method and preparing a cluster
- Mirroring images for a disconnected installation
- Installing on AWS
  - Preparing to install on AWS
  - Configuring an AWS account
  - Manually creating IAM
  - 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 in a restricted network
  - Installing a cluster on AWS into an existing VPC
  - Installing a private cluster on AWS
  - Installing a cluster on AWS into a government or secret region
  - Installing a cluster on AWS using CloudFormation templates
  - Installing a cluster on AWS in a restricted network with user-provisioned infrastructure
  - Uninstalling a cluster on AWS
- Installing on Azure
  - Configuring an Azure account
  - Manually creating IAM
  - Installing a cluster quickly on Azure
  - Installing a cluster on Azure with customizations
  - Installing a cluster on Azure with network customizations
  - Installing a cluster on Azure into an existing VNet
  - Installing a private cluster on Azure
  - Installing a cluster on Azure into a government region
  - Installing a cluster on Azure using ARM templates
  - Uninstalling a cluster on Azure
- Installing on GCP
  - Configuring a GCP project
  - Manually creating IAM
  - Installing a cluster quickly on GCP
  - Installing a cluster on GCP with customizations
  - Installing a cluster on GCP with network customizations
  - Installing a cluster on GCP in a restricted network
  - Installing a cluster on GCP into an existing VPC
  - Installing a private cluster on GCP
  - Installing a cluster on GCP using Deployment Manager templates
  - Installing a cluster into a shared VPC on GCP using Deployment Manager templates
  - Installing a cluster on GCP in a restricted network with user-provisioned infrastructure
  - Uninstalling a cluster on GCP
- Installing on bare metal
  - Installing a cluster on bare metal
  - Installing a cluster on bare metal with network customizations
  - Restricted network bare metal installation
- Deploying installer-provisioned clusters on bare metal
  - Overview
  - Prerequisites
  - Setting up the environment for an OpenShift installation
  - Expanding the cluster
  - Troubleshooting
- Installing with z/VM on IBM Z and LinuxONE
  - Installing a cluster with z/VM on IBM Z and LinuxONE
  - Restricted network IBM Z installation with z/VM
- Installing with RHEL KVM on IBM Z and LinuxONE
  - Installing a cluster with RHEL KVM on IBM Z and LinuxONE
  - Restricted network IBM Z installation with RHEL KVM
- Installing on IBM Power Systems
  - Installing a cluster on IBM Power Systems
  - Restricted network IBM Power Systems installation
- Installing on OpenStack
  - Installing a cluster on OpenStack with customizations
  - Installing a cluster on OpenStack with Kuryr
  - Installing a cluster on OpenStack on your own infrastructure
  - Installing a cluster on OpenStack with Kuryr on your own infrastructure
  - Installing a cluster on OpenStack on your own SR-IOV infrastructure
  - Installing a cluster on OpenStack in a restricted network
  - Uninstalling a cluster on OpenStack
  - Uninstalling a cluster on OpenStack from your own infrastructure
- Installing on RHV
  - Installing a cluster quickly on RHV
  - Installing a cluster on RHV with customizations
  - Installing a cluster on RHV with user-provisioned infrastructure
  - Installing a cluster on RHV in a restricted network
  - Uninstalling a cluster on RHV
- Installing on vSphere
  - Installing a cluster on vSphere
  - Installing a cluster on vSphere with customizations
  - Installing a cluster on vSphere with network customizations
  - Installing a cluster on vSphere with user-provisioned infrastructure
  - Installing a cluster on vSphere with user-provisioned infrastructure and network customizations
  - Installing a cluster on vSphere in a restricted network
  - Installing a cluster on vSphere in a restricted network with user-provisioned infrastructure
  - Uninstalling a cluster on vSphere that uses installer-provisioned infrastructure
  - Using the vSphere Problem Detector Operator
- Installing on VMC
  - Installing a cluster on VMC
  - Installing a cluster on VMC with customizations
  - Installing a cluster on VMC with network customizations
  - Installing a cluster on VMC in a restricted network
  - Installing a cluster on VMC with user-provisioned infrastructure
  - Installing a cluster on VMC with user-provisioned infrastructure and network customizations
  - Installing a cluster on VMC in a restricted network with user-provisioned infrastructure
  - Uninstalling a cluster on VMC
- Installing on any platform
  - Installing a cluster on any platform
- Installation configuration
  - Customizing nodes
  - Configuring your firewall
- Validating an installation
- Troubleshooting installation issues
- Support for FIPS cryptography
Post-installation configuration
- Post-installation configuration overview
- Configuring a private cluster
- Machine configuration tasks
- Cluster tasks
- Node tasks
- Network configuration
- Storage configuration
- Preparing for users
- Configuring alert notifications
Updating clusters
- Understanding the OpenShift Update Service
- Updating clusters overview
- Installing and configuring the OpenShift Update Service
- Understanding upgrade channels
- Updating a cluster using the web console
- Updating a cluster using the CLI
- Performing update using canary rollout strategy
- Updating a cluster that includes RHEL compute machines
- Updating a restricted network cluster
Support
- Support overview
- Managing your cluster resources
- Getting support
- Remote health monitoring with connected clusters
- Gathering data about your cluster
- Summarizing cluster specifications
- Troubleshooting
Web console
- Web console overview
- Accessing the web console
- Viewing cluster information
- Configuring the web console
- Customizing the web console
- Web terminal
- Disabling the web console
- Creating quick start tutorials
CLI tools
- CLI tools overview
- OpenShift CLI (oc)
- Developer CLI (odo)
- Helm CLI
- Knative CLI (kn) for use with OpenShift Serverless
- Pipelines CLI (tkn)
- opm CLI
- Operator SDK
  - Installing the Operator SDK CLI
  - Operator SDK CLI reference
Security and compliance
- Security and compliance overview
- Container security
- Configuring certificates
- Certificate types and descriptions
- Compliance Operator
- File Integrity Operator
- Viewing audit logs
- Configuring the audit log policy
- Configuring TLS security profiles
- Configuring seccomp profiles
- Allowing JavaScript-based access to the API server from additional hosts
- Encrypting etcd data
- Scanning pods for vulnerabilities
Authentication and authorization
- Authentication and authorization overview
- Understanding authentication
- Configuring the internal OAuth server
- Configuring OAuth clients
- Managing user-owned OAuth access tokens
- Understanding identity provider configuration
- Configuring identity providers
- Using RBAC to define and apply permissions
- Removing the kubeadmin user
- Understanding and creating service accounts
- Using service accounts in applications
- Using a service account as an OAuth client
- Scoping tokens
- Using bound service account tokens
- Managing security context constraints
- Impersonating the system:admin user
- Syncing LDAP groups
- Managing cloud provider credentials
Networking
- Understanding networking
- Accessing hosts
- Networking Operators overview
- Understanding the Cluster Network Operator
- Understanding the DNS Operator
- Understanding the Ingress Operator
- Verifying connectivity to an endpoint
- Configuring the node port service range
- Using SCTP
- Configuring PTP hardware
- Network policy
  - About network policy
  - Creating a network policy
  - Viewing a network policy
  - Editing a network policy
  - Deleting a network policy
  - Defining a default network policy for projects
  - Configuring multitenant network policy
- Multiple networks
  - Understanding multiple networks
  - Configuring an additional network
  - About virtual routing and forwarding
  - Attaching a pod to an additional network
  - Removing a pod from an additional network
  - Editing an additional network
  - Removing an additional network
  - Assigning a secondary network to a VRF
- Hardware networks
  - About Single Root I/O Virtualization (SR-IOV) hardware networks
  - Installing the SR-IOV Operator
  - Configuring the SR-IOV Operator
  - Configuring an SR-IOV network device
  - Configuring an SR-IOV Ethernet network attachment
  - Configuring an SR-IOV InfiniBand network attachment
  - Adding a pod to an SR-IOV network
  - Using high performance multicast
  - Using DPDK and RDMA
  - Uninstalling the SR-IOV Operator
- OpenShift SDN default CNI network provider
  - About the OpenShift SDN default CNI network provider
  - Configuring egress IPs for a project
  - Configuring an egress firewall for a project
  - Viewing an egress firewall for a project
  - Editing an egress firewall for a project
  - Removing an egress firewall from a project
  - Considerations for the use of an egress router pod
  - Deploying an egress router pod in redirect mode
  - Deploying an egress router pod in HTTP proxy mode
  - Deploying an egress router pod in DNS proxy mode
  - Configuring an egress router pod destination list from a config map
  - Enabling multicast for a project
  - Disabling multicast for a project
  - Configuring multitenant isolation
  - Configuring kube-proxy
- OVN-Kubernetes default CNI network provider
  - About the OVN-Kubernetes network provider
  - Migrating from the OpenShift SDN cluster network provider
  - Rolling back to the OpenShift SDN cluster network provider
  - IPsec encryption configuration
  - Configuring an egress firewall for a project
  - Viewing an egress firewall for a project
  - Editing an egress firewall for a project
  - Removing an egress firewall from a project
  - Configuring an egress IP address
  - Assigning an egress IP address
  - Considerations for the use of an egress router pod
  - Deploying an egress router pod in redirect mode
  - Enabling multicast for a project
  - Disabling multicast for a project
  - Configuring hybrid networking
- Configuring Routes
  - Route configuration
  - Secured routes
- Configuring ingress cluster traffic
  - Overview
  - Configuring ExternalIPs for services
  - Configuring ingress cluster traffic using an Ingress Controller
  - Configuring ingress cluster traffic using a load balancer
  - Configuring ingress cluster traffic on AWS using a Network Load Balancer
  - Configuring ingress cluster traffic using a service external IP
  - Configuring ingress cluster traffic using a NodePort
- Kubernetes NMState
  - About the Kubernetes NMState Operator
  - Observing node network state
  - Updating node network configuration
  - Troubleshooting node network configuration
- Configuring the cluster-wide proxy
- Configuring a custom PKI
- Load balancing on OpenStack
- Associating secondary interfaces metrics to network attachments
Storage
- Storage overview
- Understanding ephemeral storage
- Understanding persistent storage
- Configuring persistent storage
- Using Container Storage Interface (CSI)
- Expanding persistent volumes
- Dynamic provisioning
Registry
- Registry overview
- Image Registry Operator in OpenShift Container Platform
- Setting up and configuring the registry
- Accessing the registry
- Exposing the registry
Operators
- Operators overview
- Understanding Operators
- User tasks
  - Creating applications from installed Operators
  - Installing Operators in your namespace
- Administrator tasks
- Developing Operators
- Cluster Operators reference
CI/CD
- CI/CD overview
- Builds
- Pipelines
- GitOps
Images
- Overview of images
- Configuring the Cluster Samples Operator
- Using the Cluster Samples Operator with an alternate registry
- Creating images
- Managing images
- Managing image streams
- Using image streams with Kubernetes resources
- Triggering updates on image stream changes
- Image configuration resources
- Using templates
- Using Ruby on Rails
- Using images
Applications
- Applications overview
- Projects
- Application life cycle management
- Deployments
- Quotas
  - Resource quotas per project
  - Resource quotas across multiple projects
- Using config maps with applications
- Monitoring project and application metrics using the Developer perspective
- Monitoring application health
- Idling applications
- Pruning objects to reclaim resources
- Using the Red Hat Marketplace
Machine management
- Overview of machine management
- Creating machine sets
- Manually scaling a machine set
- Modifying a machine set
- Deleting a machine
- Applying autoscaling to a cluster
- Creating infrastructure machine sets
- Adding a RHEL compute machine
- Adding more RHEL compute machines
- User-provisioned infrastructure
- Deploying machine health checks
Nodes
- Overview of nodes
- Working with pods
- Controlling pod placement onto nodes (scheduling)
- Using Jobs and DaemonSets
  - Running background tasks on nodes automatically with daemonsets
  - Running tasks in pods using jobs
- Working with nodes
- Working with containers
- Working with clusters
- Remote worker nodes on the network edge
  - Using remote worker node at the network edge
Windows Container Support for OpenShift
- Red Hat OpenShift support for Windows Containers overview
- Red Hat OpenShift support for Windows Containers release notes
- Understanding Windows container workloads
- Enabling Windows container workloads
- Creating Windows MachineSet objects
- Scheduling Windows container workloads
- Windows node upgrades
- Removing Windows nodes
- Disabling Windows container workloads
Logging
- Release notes
- About Logging
- Installing Logging
- Configuring your Logging deployment
- Viewing logs for a specific resource
- Viewing cluster logs in Kibana
- Forwarding logs to third party systems
- Enabling JSON logging
- Collecting and storing Kubernetes events
- Updating Logging
- Viewing cluster dashboards
- Troubleshooting Logging
- Uninstalling Logging
- Exported fields
Monitoring
- Monitoring overview
- Configuring the monitoring stack
- Enabling monitoring for user-defined projects
- Managing metrics
- Managing alerts
- Reviewing monitoring dashboards
- Accessing third-party UIs
- Exposing custom application metrics for autoscaling
- Troubleshooting monitoring issues
Metering
- About metering
- Installing metering
- Upgrading metering
- Configuring metering
- Reports
  - About reports
  - Storage Locations
- Using metering
- Examples of using metering
- Troubleshooting and debugging
- Uninstalling metering
Scalability and performance
- Recommended installation practices
- Recommended host practices
- Recommended host practices for IBM Z & LinuxONE environments
- Recommended cluster scaling practices
- Using the Node Tuning Operator
- Using Cluster Loader
- Using CPU Manager
- Using Topology Manager
- Scaling the Cluster Monitoring Operator
- Planning your environment according to object maximums
- Optimizing storage
- Optimizing routing
- Optimizing networking
- Managing bare metal hosts
- What huge pages do and how they are consumed by apps
- Performance Addon Operator for low latency nodes
- Optimizing data plane performance with the Intel vRAN Dedicated Accelerator ACC100
Backup and restore
- Overview of backup and restore operations
- Shutting down a cluster gracefully
- Restarting a cluster gracefully
- Application backup and restore
- Control plane backup and restore
Migrating from version 3 to 4
- Migrating from version 3 to 4 overview
- About migrating from OpenShift Container Platform 3 to 4
- Differences between OpenShift Container Platform 3 and 4
- Network considerations
- About MTC
- Installing MTC
- Installing MTC in a restricted network environment
- Upgrading MTC
- Premigration checklists
- Migrating your applications
- Advanced migration options
- Troubleshooting
Migration Toolkit for Containers
- Migration toolkit for containers overview
- About MTC
- MTC release notes
- Installing MTC
- Installing MTC in a restricted network environment
- Upgrading MTC
- Premigration checklists
- Network considerations
- Migrating your applications
- Advanced migration options
- Troubleshooting
API reference
- Editing kubelet log level verbosity and gathering logs
- API list
- Common object reference
  - Index
- Authorization APIs
  - About Authorization APIs
  - LocalResourceAccessReview [authorization.openshift.io/v1]
  - LocalSubjectAccessReview [authorization.openshift.io/v1]
  - ResourceAccessReview [authorization.openshift.io/v1]
  - SelfSubjectRulesReview [authorization.openshift.io/v1]
  - SubjectAccessReview [authorization.openshift.io/v1]
  - SubjectRulesReview [authorization.openshift.io/v1]
  - TokenReview [authentication.k8s.io/v1]
  - LocalSubjectAccessReview [authorization.k8s.io/v1]
  - SelfSubjectAccessReview [authorization.k8s.io/v1]
  - SelfSubjectRulesReview [authorization.k8s.io/v1]
  - SubjectAccessReview [authorization.k8s.io/v1]
- Autoscale APIs
  - About Autoscale APIs
  - ClusterAutoscaler [autoscaling.openshift.io/v1]
  - MachineAutoscaler [autoscaling.openshift.io/v1beta1]
  - HorizontalPodAutoscaler [autoscaling/v1]
- Config APIs
  - About Config APIs
  - APIServer [config.openshift.io/v1]
  - Authentication [config.openshift.io/v1]
  - Build [config.openshift.io/v1]
  - ClusterOperator [config.openshift.io/v1]
  - ClusterVersion [config.openshift.io/v1]
  - Console [config.openshift.io/v1]
  - DNS [config.openshift.io/v1]
  - FeatureGate [config.openshift.io/v1]
  - HelmChartRepository [helm.openshift.io/v1beta1]
  - Image [config.openshift.io/v1]
  - Infrastructure [config.openshift.io/v1]
  - Ingress [config.openshift.io/v1]
  - Network [config.openshift.io/v1]
  - OAuth [config.openshift.io/v1]
  - OperatorHub [config.openshift.io/v1]
  - Project [config.openshift.io/v1]
  - Proxy [config.openshift.io/v1]
  - Scheduler [config.openshift.io/v1]
- Console APIs
  - About Console APIs
  - ConsoleCLIDownload [console.openshift.io/v1]
  - ConsoleExternalLogLink [console.openshift.io/v1]
  - ConsoleLink [console.openshift.io/v1]
  - ConsoleNotification [console.openshift.io/v1]
  - ConsoleQuickStart [console.openshift.io/v1]
  - ConsoleYAMLSample [console.openshift.io/v1]
- Extension APIs
  - About Extension APIs
  - APIService [apiregistration.k8s.io/v1]
  - CustomResourceDefinition [apiextensions.k8s.io/v1]
  - MutatingWebhookConfiguration [admissionregistration.k8s.io/v1]
  - ValidatingWebhookConfiguration [admissionregistration.k8s.io/v1]
- Image APIs
  - About Image APIs
  - Image [image.openshift.io/v1]
  - ImageSignature [image.openshift.io/v1]
  - ImageStreamImage [image.openshift.io/v1]
  - ImageStreamImport [image.openshift.io/v1]
  - ImageStreamMapping [image.openshift.io/v1]
  - ImageStream [image.openshift.io/v1]
  - ImageStreamTag [image.openshift.io/v1]
  - ImageTag [image.openshift.io/v1]
- Machine APIs
  - About Machine APIs
  - ContainerRuntimeConfig [machineconfiguration.openshift.io/v1]
  - ControllerConfig [machineconfiguration.openshift.io/v1]
  - KubeletConfig [machineconfiguration.openshift.io/v1]
  - MachineConfigPool [machineconfiguration.openshift.io/v1]
  - MachineConfig [machineconfiguration.openshift.io/v1]
  - MachineHealthCheck [machine.openshift.io/v1beta1]
  - Machine [machine.openshift.io/v1beta1]
  - MachineSet [machine.openshift.io/v1beta1]
- Metadata APIs
  - About Metadata APIs
  - Binding [core/v1]
  - ComponentStatus [core/v1]
  - ConfigMap [core/v1]
  - ControllerRevision [apps/v1]
  - Event [events.k8s.io/v1]
  - Event [core/v1]
  - Lease [coordination.k8s.io/v1]
  - Namespace [core/v1]
- Monitoring APIs
  - About Monitoring APIs
  - Alertmanager [monitoring.coreos.com/v1]
  - AlertmanagerConfig [monitoring.coreos.com/v1alpha1]
  - PodMonitor [monitoring.coreos.com/v1]
  - Probe [monitoring.coreos.com/v1]
  - Prometheus [monitoring.coreos.com/v1]
  - PrometheusRule [monitoring.coreos.com/v1]
  - ServiceMonitor [monitoring.coreos.com/v1]
  - ThanosRuler [monitoring.coreos.com/v1]
- Network APIs
  - About Network APIs
  - ClusterNetwork [network.openshift.io/v1]
  - Endpoints [core/v1]
  - EndpointSlice [discovery.k8s.io/v1beta1]
  - EgressNetworkPolicy [network.openshift.io/v1]
  - HostSubnet [network.openshift.io/v1]
  - Ingress [networking.k8s.io/v1]
  - IngressClass [networking.k8s.io/v1]
  - IPPool [whereabouts.cni.cncf.io/v1alpha1]
  - NetNamespace [network.openshift.io/v1]
  - NetworkAttachmentDefinition [k8s.cni.cncf.io/v1]
  - NetworkPolicy [networking.k8s.io/v1]
  - PodNetworkConnectivityCheck [controlplane.operator.openshift.io/v1alpha1]
  - Route [route.openshift.io/v1]
  - Service [core/v1]
- Node APIs
  - About Node APIs
  - Node [core/v1]
  - Profile [tuned.openshift.io/v1]
  - RuntimeClass [node.k8s.io/v1]
  - Tuned [tuned.openshift.io/v1]
- OAuth APIs
  - About OAuth APIs
  - OAuthAccessToken [oauth.openshift.io/v1]
  - OAuthAuthorizeToken [oauth.openshift.io/v1]
  - OAuthClientAuthorization [oauth.openshift.io/v1]
  - OAuthClient [oauth.openshift.io/v1]
  - UserOAuthAccessToken [oauth.openshift.io/v1]
- Operator APIs
  - About Operator APIs
  - Authentication [operator.openshift.io/v1]
  - CloudCredential [operator.openshift.io/v1]
  - ClusterCSIDriver [operator.openshift.io/v1]
  - Console [operator.openshift.io/v1]
  - Config [operator.openshift.io/v1]
  - Config [imageregistry.operator.openshift.io/v1]
  - Config [samples.operator.openshift.io/v1]
  - CSISnapshotController [operator.openshift.io/v1]
  - DNS [operator.openshift.io/v1]
  - DNSRecord [ingress.operator.openshift.io/v1]
  - Etcd [operator.openshift.io/v1]
  - ImageContentSourcePolicy [operator.openshift.io/v1alpha1]
  - ImagePruner [imageregistry.operator.openshift.io/v1]
  - IngressController [operator.openshift.io/v1]
  - KubeAPIServer [operator.openshift.io/v1]
  - KubeControllerManager [operator.openshift.io/v1]
  - KubeScheduler [operator.openshift.io/v1]
  - KubeStorageVersionMigrator [operator.openshift.io/v1]
  - Network [operator.openshift.io/v1]
  - OpenShiftAPIServer [operator.openshift.io/v1]
  - OpenShiftControllerManager [operator.openshift.io/v1]
  - OperatorPKI [network.operator.openshift.io/v1]
  - ServiceCA [operator.openshift.io/v1]
  - Storage [operator.openshift.io/v1]
- OperatorHub APIs
  - About OperatorHub APIs
  - CatalogSource [operators.coreos.com/v1alpha1]
  - ClusterServiceVersion [operators.coreos.com/v1alpha1]
  - InstallPlan [operators.coreos.com/v1alpha1]
  - Operator [operators.coreos.com/v1]
  - OperatorCondition [operators.coreos.com/v1]
  - OperatorGroup [operators.coreos.com/v1]
  - PackageManifest [packages.operators.coreos.com/v1]
  - Subscription [operators.coreos.com/v1alpha1]
- Policy APIs
  - About Policy APIs
  - PodDisruptionBudget [policy/v1beta1]
- Project APIs
  - About Project APIs
  - Project [project.openshift.io/v1]
  - ProjectRequest [project.openshift.io/v1]
- Provisioning APIs
  - About Provisioning APIs
  - BareMetalHost [metal3.io/v1alpha1]
  - Provisioning [metal3.io/v1alpha1]
- RBAC APIs
  - About RBAC APIs
  - ClusterRoleBinding [rbac.authorization.k8s.io/v1]
  - ClusterRole [rbac.authorization.k8s.io/v1]
  - RoleBinding [rbac.authorization.k8s.io/v1]
  - Role [rbac.authorization.k8s.io/v1]
- Role APIs
  - About Role APIs
  - ClusterRoleBinding [authorization.openshift.io/v1]
  - ClusterRole [authorization.openshift.io/v1]
  - RoleBindingRestriction [authorization.openshift.io/v1]
  - RoleBinding [authorization.openshift.io/v1]
  - Role [authorization.openshift.io/v1]
- Schedule and quota APIs
  - About Schedule and quota APIs
  - AppliedClusterResourceQuota [quota.openshift.io/v1]
  - ClusterResourceQuota [quota.openshift.io/v1]
  - FlowSchema [flowcontrol.apiserver.k8s.io/v1alpha1]
  - LimitRange [core/v1]
  - PriorityClass [scheduling.k8s.io/v1]
  - PriorityLevelConfiguration [flowcontrol.apiserver.k8s.io/v1alpha1]
  - ResourceQuota [core/v1]
- Security APIs
  - About Security APIs
  - CertificateSigningRequest [certificates.k8s.io/v1]
  - CredentialsRequest [cloudcredential.openshift.io/v1]
  - PodSecurityPolicyReview [security.openshift.io/v1]
  - PodSecurityPolicySelfSubjectReview [security.openshift.io/v1]
  - PodSecurityPolicySubjectReview [security.openshift.io/v1]
  - RangeAllocation [security.openshift.io/v1]
  - Secret [core/v1]
  - SecurityContextConstraints [security.openshift.io/v1]
  - ServiceAccount [core/v1]
- Storage APIs
  - About Storage APIs
  - CSIDriver [storage.k8s.io/v1]
  - CSINode [storage.k8s.io/v1]
  - PersistentVolumeClaim [core/v1]
  - StorageClass [storage.k8s.io/v1]
  - StorageState [migration.k8s.io/v1alpha1]
  - StorageVersionMigration [migration.k8s.io/v1alpha1]
  - VolumeAttachment [storage.k8s.io/v1]
  - VolumeSnapshot [snapshot.storage.k8s.io/v1]
  - VolumeSnapshotClass [snapshot.storage.k8s.io/v1]
  - VolumeSnapshotContent [snapshot.storage.k8s.io/v1]
- Template APIs
  - About Template APIs
  - BrokerTemplateInstance [template.openshift.io/v1]
  - PodTemplate [core/v1]
  - Template [template.openshift.io/v1]
  - TemplateInstance [template.openshift.io/v1]
- User and group APIs
  - About User and group APIs
  - Group [user.openshift.io/v1]
  - Identity [user.openshift.io/v1]
  - UserIdentityMapping [user.openshift.io/v1]
  - User [user.openshift.io/v1]
- Workloads APIs
  - About Workloads APIs
  - BuildConfig [build.openshift.io/v1]
  - Build [build.openshift.io/v1]
  - CronJob [batch/v1beta1]
  - DaemonSet [apps/v1]
  - Deployment [apps/v1]
  - DeploymentConfig [apps.openshift.io/v1]
  - Job [batch/v1]
  - Pod [core/v1]
  - ReplicationController [core/v1]
  - PersistentVolume [core/v1]
  - ReplicaSet [apps/v1]
  - StatefulSet [apps/v1]
Service Mesh
- Service Mesh 2.x
- Service Mesh 1.x
Distributed tracing
- Distributed tracing release notes
- Distributed tracing architecture
  - Distributed tracing architecture
- Distributed tracing installation
OpenShift Virtualization
- About OpenShift Virtualization
- OpenShift Virtualization release notes
- Installing OpenShift Virtualization
- Upgrading OpenShift Virtualization
- Additional security privileges granted for kubevirt-controller and virt-launcher
- Using the CLI tools
- Virtual machines
- Virtual machine templates
- Live migration
- Node maintenance
- Node networking
- Logging, events, and monitoring
Serverless
- Release notes
- Discover
- Install
- Knative CLI
- Develop
- Administer
- Monitor
  - Cluster logging with OpenShift Serverless
  - Serverless developer metrics
- Tracing
- Support
- Security
  - Configuring JSON Web Token authentication for Knative services
  - Configuring a custom domain for a Knative service
- Functions
- Integrations
  - Integrating Serverless with the cost management service
  - Using NVIDIA GPU resources with serverless applications

OpenShift SDN network isolation modes
Supported default CNI network provider feature matrix

OpenShift Container Platform uses a software-defined networking (SDN) approach to provide a unified cluster network that enables communication between pods across the OpenShift Container Platform cluster. This pod network is established and maintained by the OpenShift SDN, which configures an overlay network using Open vSwitch (OVS).

OpenShift SDN network isolation modes

OpenShift SDN provides three SDN modes for configuring the pod network:

Network policy mode allows project administrators to configure their own isolation policies using NetworkPolicy objects. Network policy is the default mode in OpenShift Container Platform 4.7.
Multitenant mode provides project-level isolation for pods and services. Pods from different projects cannot send packets to or receive packets from pods and services of a different project. You can disable isolation for a project, allowing it to send network traffic to all pods and services in the entire cluster and receive network traffic from those pods and services.
Subnet mode provides a flat pod network where every pod can communicate with every other pod and service. The network policy mode provides the same functionality as subnet mode.

Supported default CNI network provider feature matrix

OpenShift Container Platform offers two supported choices, OpenShift SDN and OVN-Kubernetes, for the default Container Network Interface (CNI) network provider. The following table summarizes the current feature support for both network providers:

Table 1. Default CNI network provider feature comparison
Feature	OpenShift SDN	OVN-Kubernetes
Egress IPs	Supported	Supported
Egress firewall ^[1]	Supported	Supported
Egress router	Supported	Partially supported ^[3]
IPsec encryption	Not supported	Supported
Kubernetes network policy	Partially supported ^[2]	Supported
Multicast	Supported	Supported

Egress firewall is also known as egress network policy in OpenShift SDN. This is not the same as network policy egress.
Network policy for OpenShift SDN does not support egress rules and some ipBlock rules.
Egress router for OVN-Kubernetes supports only redirect mode.