Project layout - Developing Operators | Operators

About
- Welcome
- Learn more about OpenShift Container Platform
What's new?
- New features and enhancements
- Deprecated features
Architecture
- Architecture overview
- Product architecture
- Installation and update
- Control plane architecture
- Understanding OKD development
- Fedora CoreOS
Installing
- Installation overview
- Disconnected installation mirroring
- Installing on Alibaba
- Installing on AWS
- Installing on Azure
- Installing on Azure Stack Hub
- Installing on GCP
- Installing on IBM Cloud VPC
- Installing on Nutanix
- Installing on bare metal
- Deploying installer-provisioned clusters on bare metal
- Installing IBM Cloud Bare Metal (Classic)
  - Prerequisites
  - Installation workflow
- Installing on OpenStack
- Installing on oVirt
- Installing on vSphere
- Installing on VMC
- Installing on any platform
  - Installing a cluster on any platform
- Installation configuration
  - Customizing nodes
  - Configuring your firewall
- Validation and troubleshooting
  - Validating an installation
  - Troubleshooting installation issues
Post-installation configuration
- Configuring a private cluster
- Bare metal configuration
- Machine configuration tasks
- Cluster tasks
- Node tasks
- Postinstallation network configuration
- Configuring image streams and image registries
- Storage configuration
- Preparing for users
- Configuring alert notifications
- Converting a connected cluster to a disconnected cluster
- Enabling cluster capabilities
- Configuring additional devices in an IBM Z or IBM LinuxONE environment
- Fedora CoreOS (FCOS) image layering
Updating clusters
- Updating clusters overview
- Understanding OpenShift update duration
- Preparing to update to OKD 4.13
- Preparing to update a cluster with manually maintained credentials
- Updating a cluster using the web console
- Updating a cluster using the CLI
- Migrating to a cluster with multi-architecture compute machines
- Performing update using canary rollout strategy
- Updating the boot loader on Fedora CoreOS nodes using bootupd
- Updating a cluster in a disconnected environment
- Updating hardware on nodes running on vSphere
- Preflight validation for Kernel Module Management (KMM) Modules
- Updating hosted control planes
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
- Using the OpenShift Container Platform dashboard to get cluster information
- Adding user preferences
- Configuring the web console
- Customizing the web console
- Dynamic plugins
- Disabling the web console
- Creating quick start tutorials
CLI tools
- CLI tools overview
- OpenShift CLI (oc)
- Developer CLI (odo)
- Knative CLI (kn) for use with OpenShift Serverless
- opm CLI
  - Installing the opm CLI
  - opm CLI reference
- 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
- Security Profiles 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
- Network-Bound Disk Encryption (NBDE)
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
- Understanding and managing pod security admission
- Impersonating the system:admin user
- Syncing LDAP groups
- Managing cloud provider credentials
Networking
- About networking
- Understanding networking
- Accessing hosts
- Networking Operators overview
- Understanding the Cluster Network Operator
- Understanding the DNS Operator
- Understanding the Ingress Operator
- Understanding the Ingress Node Firewall Operator
- Configuring the Ingress Controller for manual DNS management
- Verifying connectivity to an endpoint
- Changing the cluster network MTU
- Configuring the node port service range
- Configuring the cluster network IP address range
- Configuring IP failover
- Configuring interface-level network sysctls
- Using Stream Control Transmission Protocol
- Using Precision Time Protocol hardware
- Developing Precision Time Protocol events consumer applications
- External DNS Operator
  - Understanding the External DNS Operator
  - Installing the External DNS Operator
  - External DNS Operator configuration parameters
  - Creating DNS records on a public hosted zone for AWS
  - Creating DNS records on a public zone for Azure
  - Creating DNS records on a public managed zone for GCP
  - Creating DNS records on a public DNS zone for Infoblox
  - Configuring the cluster-wide proxy on the External DNS Operator
- 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 isolation with network policy
- CIDR range definitions
- AWS Load Balancer Operator
  - AWS Load Balancer Operator release notes
  - Understanding the AWS Load Balancer Operator
  - Installing the AWS Load Balancer Operator
  - Preparing for the AWS Load Balancer Operator on a cluster using the AWS Security Token Service (STS)
  - Creating an instance of the AWS Load Balancer Controller
  - Serving multiple ingress resources through a single AWS Load Balancer
  - Adding TLS termination on the AWS Load Balancer
  - Configuring cluster-wide proxy on the AWS Load Balancer Operator
- Multiple networks
  - Understanding multiple networks
  - Configuring an additional network
  - About virtual routing and forwarding
  - Configuring multi-network policy
  - 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
  - Tuning sysctl settings on an SR-IOV network
  - Using high performance multicast
  - Using DPDK and RDMA
  - Using pod-level bonding for secondary networks
  - Configuring hardware offloading
  - Switching Bluefield-2 from NIC to DPU mode
  - Uninstalling the SR-IOV Operator
- OVN-Kubernetes network plugin
  - About the OVN-Kubernetes network plugin
  - OVN-Kubernetes architecture
  - OVN-Kubernetes troubleshooting
  - OVN-Kubernetes traffic tracing
  - Migrating from the OpenShift SDN network plugin
  - Rolling back to the OpenShift SDN network plugin
  - Migrating from Kuryr
  - Converting to IPv4/IPv6 dual stack networking
  - Logging for egress firewall and network policy rules
  - Configuring IPsec encryption
  - 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
  - Tracking network flows
  - Configuring hybrid networking
- OpenShift SDN network plugin
  - About the OpenShift SDN network plugin
  - Migrating to the OpenShift SDN network plugin
  - Rolling back to the OVN-Kubernetes network plugin
  - 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
- Configuring Routes
  - Route configuration
  - Secured routes
- Configuring ingress cluster traffic
  - Overview
  - Configuring ExternalIPs for services
  - Configuring ingress cluster traffic using an Ingress Controller
  - Configuring the Ingress Controller endpoint publishing strategy
  - Configuring ingress cluster traffic using a load balancer
  - Configuring ingress cluster traffic on AWS
  - Configuring ingress cluster traffic using a service external IP
  - Configuring ingress cluster traffic using a NodePort
  - Configuring ingress cluster traffic using load balancer allowed source ranges
  - Patching existing ingress objects
- Kubernetes NMState
  - About the Kubernetes NMState Operator
  - Observing and updating node network state and configuration
  - Troubleshooting node network configuration
- Configuring the cluster-wide proxy
- Configuring a custom PKI
- Load balancing on OpenStack
- Load balancing with MetalLB
  - About MetalLB and the MetalLB Operator
  - Installing the MetalLB Operator
  - Upgrading the MetalLB Operator
  - Configuring MetalLB address pools
  - Advertising the IP address pools
  - Configuring MetalLB BGP peers
  - Advertising an IP address pool using the community alias
  - Configuring MetalLB BFD profiles
  - Configuring services to use MetalLB
  - MetalLB logging, troubleshooting, and support
- Associating secondary interfaces metrics to network attachments
Storage
- Storage overview
- Understanding ephemeral storage
- Understanding persistent storage
- Configuring persistent storage
- Persistent storage using local storage
- Using Container Storage Interface (CSI)
- Generic ephemeral volumes
- Expanding persistent volumes
- Dynamic provisioning
- Detach volumes after non-graceful node shutdown
Registry
- Registry overview
- Image Registry Operator in OKD
- 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
  - About CI/CD
- Builds
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
Building applications
- Building applications overview
- Projects
- Creating applications
- Viewing application composition by using the Topology view
- Exporting applications
- Connecting applications to services
- Working with Helm charts
- 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
- Editing applications
- Pruning objects to reclaim resources
- Idling applications
- Deleting applications
- Using the Red Hat Marketplace
Machine management
- Overview of machine management
- Managing compute machines with the Machine API
- Manually scaling a compute machine set
- Modifying a compute machine set
- Machine phases and lifecycle
- Deleting a machine
- Applying autoscaling to a cluster
- Creating infrastructure machine sets
- Managing user-provisioned infrastructure manually
- Managing control plane machines
- Managing machines with the Cluster API
- Deploying machine health checks
Hosted control planes
- Hosted control planes overview
- Configuring hosted control planes
- Managing hosted control planes
- Backup, restore, and disaster recovery for hosted control planes
Nodes
- Overview of nodes
- Working with pods
- Automatically scaling pods with the Custom Metrics Autoscaler Operator
- 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
Windows Container Support for OpenShift
- Red Hat OpenShift support for Windows Containers overview
- Release notes
- Understanding Windows container workloads
- Enabling Windows container workloads
- Creating Windows machine sets
- Scheduling Windows container workloads
- Windows node upgrades
- Using Bring-Your-Own-Host Windows instances as nodes
- Removing Windows nodes
- Disabling Windows container workloads
Observability
- Observability overview
  - About Observability
- Monitoring
- Logging
- Network Observability
- Cluster Observability Operator
  - Cluster Observability Operator overview
Scalability and performance
- Scalability and performance overview
- Recommended performance and scalability practices
- Planning your environment according to object maximums
- Compute Resource Quotas
- Using the Node Tuning Operator
- Using CPU Manager and Topology Manager
- Scheduling NUMA-aware workloads
- Scalability and performance optimization
- Managing bare metal hosts
- Monitoring bare-metal events
- What huge pages do and how they are consumed by apps
- Low latency tuning
- Performing latency tests for platform verification
- Improving cluster stability in high latency environments using worker latency profiles
- Creating a performance profile
- Workload partitioning
- Requesting CRI-O and Kubelet profiling data by using the Node Observability Operator
- Clusters at the network far edge
Specialized hardware and driver enablement
- About specialized hardware and driver enablement
- Driver Toolkit
- Node Feature Discovery Operator
- Kernel Module Management Operator
Backup and restore
- Overview of backup and restore operations
- Shutting down a cluster gracefully
- Restarting a cluster gracefully
- OADP 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 OKD 3 to 4
- Differences between OKD 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
- About MTC
- MTC release notes
- Installing MTC
- Installing MTC in a restricted network environment
- Upgrading MTC
- Premigration checklists
- Network considerations
- Direct Migration Requirements
- Migrating your applications
- Advanced migration options
- Troubleshooting
API reference
- API overview
  - Understanding API tiers
  - API compatibility guidelines
  - 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]
  - TokenRequest [authentication.k8s.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/v2]
  - Scale [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]
  - ImageDigestMirrorSet [config.openshift.io/v1]
  - ImageContentPolicy [config.openshift.io/v1]
  - ImageTagMirrorSet [config.openshift.io/v1]
  - Infrastructure [config.openshift.io/v1]
  - Ingress [config.openshift.io/v1]
  - Network [config.openshift.io/v1]
  - Node [config.openshift.io/v1]
  - OAuth [config.openshift.io/v1]
  - OperatorHub [config.openshift.io/v1]
  - Project [config.openshift.io/v1]
  - ProjectHelmChartRepository [helm.openshift.io/v1beta1]
  - 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]
  - ConsolePlugin [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]
  - ImageStreamLayers [image.openshift.io/v1]
  - ImageStreamMapping [image.openshift.io/v1]
  - ImageStream [image.openshift.io/v1]
  - ImageStreamTag [image.openshift.io/v1]
  - ImageTag [image.openshift.io/v1]
  - SecretList [image.openshift.io/v1]
- Machine APIs
  - About Machine APIs
  - ContainerRuntimeConfig [machineconfiguration.openshift.io/v1]
  - ControllerConfig [machineconfiguration.openshift.io/v1]
  - ControlPlaneMachineSet [machine.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
  - APIRequestCount [apiserver.openshift.io/v1]
  - Binding [undefined/v1]
  - ComponentStatus [undefined/v1]
  - ConfigMap [undefined/v1]
  - ControllerRevision [apps/v1]
  - Event [events.k8s.io/v1]
  - Event [undefined/v1]
  - Lease [coordination.k8s.io/v1]
  - Namespace [undefined/v1]
- Monitoring APIs
  - About Monitoring APIs
  - Alertmanager [monitoring.coreos.com/v1]
  - AlertmanagerConfig [monitoring.coreos.com/v1beta1]
  - 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
  - CloudPrivateIPConfig [cloud.network.openshift.io/v1]
  - EgressFirewall [k8s.ovn.org/v1]
  - EgressIP [k8s.ovn.org/v1]
  - EgressQoS [k8s.ovn.org/v1]
  - Endpoints [undefined/v1]
  - EndpointSlice [discovery.k8s.io/v1]
  - EgressRouter [network.operator.openshift.io/v1]
  - Ingress [networking.k8s.io/v1]
  - IngressClass [networking.k8s.io/v1]
  - IPPool [whereabouts.cni.cncf.io/v1alpha1]
  - NetworkAttachmentDefinition [k8s.cni.cncf.io/v1]
  - NetworkPolicy [networking.k8s.io/v1]
  - OverlappingRangeIPReservation [whereabouts.cni.cncf.io/v1alpha1]
  - PodNetworkConnectivityCheck [controlplane.operator.openshift.io/v1alpha1]
  - Route [route.openshift.io/v1]
  - Service [undefined/v1]
- Node APIs
  - About Node APIs
  - Node [undefined/v1]
  - PerformanceProfile [performance.openshift.io/v2]
  - 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]
  - InsightsOperator [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]
  - OLMConfig [operators.coreos.com/v1]
  - Operator [operators.coreos.com/v1]
  - OperatorCondition [operators.coreos.com/v2]
  - OperatorGroup [operators.coreos.com/v1]
  - PackageManifest [packages.operators.coreos.com/v1]
  - Subscription [operators.coreos.com/v1alpha1]
- Policy APIs
  - About Policy APIs
  - Eviction [policy/v1]
  - PodDisruptionBudget [policy/v1]
- Project APIs
  - About Project APIs
  - Project [project.openshift.io/v1]
  - ProjectRequest [project.openshift.io/v1]
- Provisioning APIs
  - About Provisioning APIs
  - BMCEventSubscription [metal3.io/v1alpha1]
  - BareMetalHost [metal3.io/v1alpha1]
  - FirmwareSchema [metal3.io/v1alpha1]
  - HardwareData [metal3.io/v1alpha1]
  - HostFirmwareSettings [metal3.io/v1alpha1]
  - Metal3Remediation [infrastructure.cluster.x-k8s.io/v1beta1]
  - Metal3RemediationTemplate [infrastructure.cluster.x-k8s.io/v1beta1]
  - PreprovisioningImage [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/v1beta1]
  - LimitRange [undefined/v1]
  - PriorityClass [scheduling.k8s.io/v1]
  - PriorityLevelConfiguration [flowcontrol.apiserver.k8s.io/v1beta1]
  - ResourceQuota [undefined/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 [undefined/v1]
  - SecurityContextConstraints [security.openshift.io/v1]
  - ServiceAccount [undefined/v1]
- Storage APIs
  - About Storage APIs
  - CSIDriver [storage.k8s.io/v1]
  - CSINode [storage.k8s.io/v1]
  - CSIStorageCapacity [storage.k8s.io/v1]
  - PersistentVolume [undefined/v1]
  - PersistentVolumeClaim [undefined/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 [undefined/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]
  - BuildLog [build.openshift.io/v1]
  - BuildRequest [build.openshift.io/v1]
  - CronJob [batch/v1]
  - DaemonSet [apps/v1]
  - Deployment [apps/v1]
  - DeploymentConfig [apps.openshift.io/v1]
  - DeploymentConfigRollback [apps.openshift.io/v1]
  - DeploymentLog [apps.openshift.io/v1]
  - DeploymentRequest [apps.openshift.io/v1]
  - Job [batch/v1]
  - Pod [undefined/v1]
  - ReplicationController [undefined/v1]
  - ReplicaSet [apps/v1]
  - StatefulSet [apps/v1]
Virtualization
- About OpenShift Virtualization
- Supported limits
- About OKD Virtualization
- Getting started with OKD Virtualization
- Installing
- Updating OKD Virtualization
- Security policies
- Using the virtctl and libguestfs CLI tools
- Virtual machines
- Virtual machine templates
- Live migration
- Node maintenance
- Support
- Backup and restore

Helm-based project layout

The operator-sdk CLI can generate, or scaffold, a number of packages and files for each Operator project.

Helm-based project layout

Helm-based Operator projects generated using the operator-sdk init --plugins helm command contain the following directories and files:

File/folders Purpose

File/folders	Purpose
`config/`	Kustomize manifests for deploying the Operator on a Kubernetes cluster.
`helm-charts/`	Helm chart initialized with the `operator-sdk create api` command.
`Dockerfile`	Used to build the Operator image with the `make docker-build` command.
`watches.yaml`	Group/version/kind (GVK) and Helm chart location.
`Makefile`	Targets used to manage the project.
`PROJECT`	YAML file containing metadata information for the Operator.

config/

Kustomize manifests for deploying the Operator on a Kubernetes cluster.

helm-charts/

Helm chart initialized with the operator-sdk create api command.

Dockerfile

Used to build the Operator image with the make docker-build command.

watches.yaml

Group/version/kind (GVK) and Helm chart location.

Makefile

Targets used to manage the project.

PROJECT

YAML file containing metadata information for the Operator.

Project layout for Helm-based Operators

Helm-based project layout