Chapter 7. Recommended single-node OpenShift cluster configuration for vDU application workloads Use the following reference information to understand the single-node OpenShift configurations required to deploy virtual distributed unit (vDU) applications in the cluster. Configurations include cluster optimizations for high performance workloads, enabling workload partitioning, and minimizing the number of reboots required postinstallation. Additional resources To deploy a single cluster by hand, see Manually installing a single-node OpenShift cluster with GitOps ZTP . To deploy a fleet of clusters using GitOps Zero Touch Provisioning (ZTP), see Deploying far edge sites with GitOps ZTP . 7.1. Running low latency applications on OpenShift Container Platform OpenShift Container Platform enables low latency processing for applications running on commercial off-the-shelf (COTS) hardware by using several technologies and specialized hardware devices: Real-time kernel for RHCOS Ensures workloads are handled with a high degree of process determinism. CPU isolation Avoids CPU scheduling delays and ensures CPU capacity is available consistently. NUMA-aware topology management Aligns memory and huge pages with CPU and PCI devices to pin guaranteed container memory and huge pages to the non-uniform memory access (NUMA) node. Pod resources for all Quality of Service (QoS) classes stay on the same NUMA node. This decreases latency and improves performance of the node. Huge pages memory management Using huge page sizes improves system performance by reducing the amount of system resources required to access page tables. Precision timing synchronization using PTP Allows synchronization between nodes in the network with sub-microsecond accuracy. 7.2. Recommended cluster host requirements for vDU application workloads Running vDU application workloads requires a bare-metal host with sufficient resources to run OpenShift Container Platform services and production workloads. Table 7.1. Minimum resource requirements Profile vCPU Memory Storage Minimum 4 to 8 vCPU 32GB of RAM 120GB Note One vCPU equals one physical core. However, if you enable simultaneous multithreading (SMT), or Hyper-Threading, use the following formula to calculate the number of vCPUs that represent one physical core: (threads per core x cores) x sockets = vCPUs Important The server must have a Baseboard Management Controller (BMC) when booting with virtual media. 7.3. Configuring host firmware for low latency and high performance Bare-metal hosts require the firmware to be configured before the host can be provisioned. The firmware configuration is dependent on the specific hardware and the particular requirements of your installation. Procedure Set the UEFI/BIOS Boot Mode to UEFI . In the host boot sequence order, set Hard drive first . Apply the specific firmware configuration for your hardware. The following table describes a representative firmware configuration for an Intel Xeon Skylake or Intel Cascade Lake server, based on the Intel FlexRAN 4G and 5G baseband PHY reference design. Important The exact firmware configuration depends on your specific hardware and network requirements. The following sample configuration is for illustrative purposes only. Table 7.2. Sample firmware configuration for an Intel Xeon Skylake or Cascade Lake server Firmware setting Configuration CPU Power and Performance Policy Performance Uncore Frequency Scaling Disabled Performance P-limit Disabled Enhanced Intel SpeedStep (R) Tech Enabled Intel Configurable TDP Enabled Configurable TDP Level Level 2 Intel(R) Turbo Boost Technology Enabled Energy Efficient Turbo Disabled Hardware P-States Disabled Package C-State C0/C1 state C1E Disabled Processor C6 Disabled Note Enable global SR-IOV and VT-d settings in the firmware for the host. These settings are relevant to bare-metal environments. 7.4. Connectivity prerequisites for managed cluster networks Before you can install and provision a managed cluster with the GitOps Zero Touch Provisioning (ZTP) pipeline, the managed cluster host must meet the following networking prerequisites: There must be bi-directional connectivity between the GitOps ZTP container in the hub cluster and the Baseboard Management Controller (BMC) of the target bare-metal host. The managed cluster must be able to resolve and reach the API hostname of the hub hostname and *.apps hostname. Here is an example of the API hostname of the hub and *.apps hostname: api.hub-cluster.internal.domain.com console-openshift-console.apps.hub-cluster.internal.domain.com The hub cluster must be able to resolve and reach the API and *.apps hostname of the managed cluster. Here is an example of the API hostname of the managed cluster and *.apps hostname: api.sno-managed-cluster-1.internal.domain.com console-openshift-console.apps.sno-managed-cluster-1.internal.domain.com 7.5. Workload partitioning in single-node OpenShift with GitOps ZTP Workload partitioning configures OpenShift Container Platform services, cluster management workloads, and infrastructure pods to run on a reserved number of host CPUs. To configure workload partitioning with GitOps Zero Touch Provisioning (ZTP), you configure a cpuPartitioningMode field in the SiteConfig custom resource (CR) that you use to install the cluster and you apply a PerformanceProfile CR that configures the isolated and reserved CPUs on the host. Configuring the SiteConfig CR enables workload partitioning at cluster installation time and applying the PerformanceProfile CR configures the specific allocation of CPUs to reserved and isolated sets. Both of these steps happen at different points during cluster provisioning. Note Configuring workload partitioning by using the cpuPartitioningMode field in the SiteConfig CR is a Tech Preview feature in OpenShift Container Platform 4.13. Alternatively, you can specify cluster management CPU resources with the cpuset field of the SiteConfig custom resource (CR) and the reserved field of the group PolicyGenTemplate CR. The GitOps ZTP pipeline uses these values to populate the required fields in the workload partitioning MachineConfig CR ( cpuset ) and the PerformanceProfile CR ( reserved ) that configure the single-node OpenShift cluster. This method is a General Availability feature in OpenShift Container Platform 4.14. The workload partitioning configuration pins the OpenShift Container Platform infrastructure pods to the reserved CPU set. Platform services such as systemd, CRI-O, and kubelet run on the reserved CPU set. The isolated CPU sets are exclusively allocated to your container workloads. Isolating CPUs ensures that the workload has guaranteed access to the specified CPUs without contention from other applications running on the same node. All CPUs that are not isolated should be reserved. Important Ensure that reserved and isolated CPU sets do not overlap with each other. Additional resources For the recommended single-node OpenShift workload partitioning configuration, see Workload partitioning . 7.6. Recommended cluster install manifests The ZTP pipeline applies the following custom resources (CRs) during cluster installation. These configuration CRs ensure that the cluster meets the feature and performance requirements necessary for running a vDU application. Note When using the GitOps ZTP plugin and SiteConfig CRs for cluster deployment, the following MachineConfig CRs are included by default. Use the SiteConfig extraManifests filter to alter the CRs that are included by default. For more information, see Advanced managed cluster configuration with SiteConfig CRs . 7.6.1. Workload partitioning Single-node OpenShift clusters that run DU workloads require workload partitioning. This limits the cores allowed to run platform services, maximizing the CPU core for application payloads. Note Workload partitioning can be enabled during cluster installation only. You cannot disable workload partitioning postinstallation. You can however change the set of CPUs assigned to the isolated and reserved sets through the PerformanceProfile CR. Changes to CPU settings cause the node to reboot. Upgrading from OpenShift Container Platform 4.12 to 4.13+ When transitioning to using cpuPartitioningMode for enabling workload partitioning, remove the workload partitioning MachineConfig CRs from the /extra-manifest folder that you use to provision the cluster. Recommended SiteConfig CR configuration for workload partitioning apiVersion: ran.openshift.io/v1 kind: SiteConfig metadata: name: "<site_name>" namespace: "<site_name>" spec: baseDomain: "example.com" cpuPartitioningMode: AllNodes 1 1 Set the cpuPartitioningMode field to AllNodes to configure workload partitioning for all nodes in the cluster. Verification Check that the applications and cluster system CPU pinning is correct. Run the following commands: Open a remote shell prompt to the managed cluster: USD oc debug node/example-sno-1 Check that the OpenShift infrastructure applications CPU pinning is correct: sh-4.4# pgrep ovn | while read i; do taskset -cp USDi; done Example output pid 8481's current affinity list: 0-1,52-53 pid 8726's current affinity list: 0-1,52-53 pid 9088's current affinity list: 0-1,52-53 pid 9945's current affinity list: 0-1,52-53 pid 10387's current affinity list: 0-1,52-53 pid 12123's current affinity list: 0-1,52-53 pid 13313's current affinity list: 0-1,52-53 Check that the system applications CPU pinning is correct: sh-4.4# pgrep systemd | while read i; do taskset -cp USDi; done Example output pid 1's current affinity list: 0-1,52-53 pid 938's current affinity list: 0-1,52-53 pid 962's current affinity list: 0-1,52-53 pid 1197's current affinity list: 0-1,52-53 7.6.2. Reduced platform management footprint To reduce the overall management footprint of the platform, a MachineConfig custom resource (CR) is required that places all Kubernetes-specific mount points in a new namespace separate from the host operating system. The following base64-encoded example MachineConfig CR illustrates this configuration. Recommended container mount namespace configuration ( 01-container-mount-ns-and-kubelet-conf-master.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: container-mount-namespace-and-kubelet-conf-master spec: config: ignition: version: 3.2.0 storage: files: - contents: source: data:text/plain;charset=utf-8;base64,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 mode: 493 path: /usr/local/bin/extractExecStart - contents: source: data:text/plain;charset=utf-8;base64,IyEvYmluL2Jhc2gKbnNlbnRlciAtLW1vdW50PS9ydW4vY29udGFpbmVyLW1vdW50LW5hbWVzcGFjZS9tbnQgIiRAIgo= mode: 493 path: /usr/local/bin/nsenterCmns systemd: units: - contents: | [Unit] Description=Manages a mount namespace that both kubelet and crio can use to share their container-specific mounts [Service] Type=oneshot RemainAfterExit=yes RuntimeDirectory=container-mount-namespace Environment=RUNTIME_DIRECTORY=%t/container-mount-namespace Environment=BIND_POINT=%t/container-mount-namespace/mnt ExecStartPre=bash -c "findmnt USD{RUNTIME_DIRECTORY} || mount --make-unbindable --bind USD{RUNTIME_DIRECTORY} USD{RUNTIME_DIRECTORY}" ExecStartPre=touch USD{BIND_POINT} ExecStart=unshare --mount=USD{BIND_POINT} --propagation slave mount --make-rshared / ExecStop=umount -R USD{RUNTIME_DIRECTORY} name: container-mount-namespace.service - dropins: - contents: | [Unit] Wants=container-mount-namespace.service After=container-mount-namespace.service [Service] ExecStartPre=/usr/local/bin/extractExecStart %n /%t/%N-execstart.env ORIG_EXECSTART EnvironmentFile=-/%t/%N-execstart.env ExecStart= ExecStart=bash -c "nsenter --mount=%t/container-mount-namespace/mnt \ USD{ORIG_EXECSTART}" name: 90-container-mount-namespace.conf name: crio.service - dropins: - contents: | [Unit] Wants=container-mount-namespace.service After=container-mount-namespace.service [Service] ExecStartPre=/usr/local/bin/extractExecStart %n /%t/%N-execstart.env ORIG_EXECSTART EnvironmentFile=-/%t/%N-execstart.env ExecStart= ExecStart=bash -c "nsenter --mount=%t/container-mount-namespace/mnt \ USD{ORIG_EXECSTART} --housekeeping-interval=30s" name: 90-container-mount-namespace.conf - contents: | [Service] Environment="OPENSHIFT_MAX_HOUSEKEEPING_INTERVAL_DURATION=60s" Environment="OPENSHIFT_EVICTION_MONITORING_PERIOD_DURATION=30s" name: 30-kubelet-interval-tuning.conf name: kubelet.service 7.6.3. SCTP Stream Control Transmission Protocol (SCTP) is a key protocol used in RAN applications. This MachineConfig object adds the SCTP kernel module to the node to enable this protocol. Recommended control plane node SCTP configuration ( 03-sctp-machine-config-master.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: load-sctp-module-master spec: config: ignition: version: 2.2.0 storage: files: - contents: source: data:, verification: {} filesystem: root mode: 420 path: /etc/modprobe.d/sctp-blacklist.conf - contents: source: data:text/plain;charset=utf-8,sctp filesystem: root mode: 420 path: /etc/modules-load.d/sctp-load.conf Recommended worker node SCTP configuration ( 03-sctp-machine-config-worker.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: worker name: load-sctp-module-worker spec: config: ignition: version: 2.2.0 storage: files: - contents: source: data:, verification: {} filesystem: root mode: 420 path: /etc/modprobe.d/sctp-blacklist.conf - contents: source: data:text/plain;charset=utf-8,sctp filesystem: root mode: 420 path: /etc/modules-load.d/sctp-load.conf 7.6.4. Setting rcu_normal The following MachineConfig CR configures the system to set rcu_normal to 1 after the system has finished startup. This improves kernel latency for vDU applications. Recommended configuration for disabling rcu_expedited after the node has finished startup ( 08-set-rcu-normal-master.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 08-set-rcu-normal-master spec: config: ignition: version: 3.2.0 storage: files: - contents: source: data:text/plain;charset=utf-8;base64,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 mode: 493 path: /usr/local/bin/set-rcu-normal.sh systemd: units: - contents: | [Unit] Description=Disable rcu_expedited after node has finished booting by setting rcu_normal to 1 [Service] Type=simple ExecStart=/usr/local/bin/set-rcu-normal.sh # Maximum wait time is 600s = 10m: Environment=MAXIMUM_WAIT_TIME=600 # Steady-state threshold = 2% # Allowed values: # 4 - absolute pod count (+/-) # 4% - percent change (+/-) # -1 - disable the steady-state check # Note: '%' must be escaped as '%%' in systemd unit files Environment=STEADY_STATE_THRESHOLD=2%% # Steady-state window = 120s # If the running pod count stays within the given threshold for this time # period, return CPU utilization to normal before the maximum wait time has # expires Environment=STEADY_STATE_WINDOW=120 # Steady-state minimum = 40 # Increasing this will skip any steady-state checks until the count rises above # this number to avoid false positives if there are some periods where the # count doesn't increase but we know we can't be at steady-state yet. Environment=STEADY_STATE_MINIMUM=40 [Install] WantedBy=multi-user.target enabled: true name: set-rcu-normal.service 7.6.5. Automatic kernel crash dumps with kdump kdump is a Linux kernel feature that creates a kernel crash dump when the kernel crashes. kdump is enabled with the following MachineConfig CRs. Recommended MachineConfig CR to remove ice driver from control plane kdump logs ( 05-kdump-config-master.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 05-kdump-config-master spec: config: ignition: version: 3.2.0 systemd: units: - enabled: true name: kdump-remove-ice-module.service contents: | [Unit] Description=Remove ice module when doing kdump Before=kdump.service [Service] Type=oneshot RemainAfterExit=true ExecStart=/usr/local/bin/kdump-remove-ice-module.sh [Install] WantedBy=multi-user.target storage: files: - contents: source: data:text/plain;charset=utf-8;base64,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 mode: 448 path: /usr/local/bin/kdump-remove-ice-module.sh Recommended control plane node kdump configuration ( 06-kdump-master.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 06-kdump-enable-master spec: config: ignition: version: 3.2.0 systemd: units: - enabled: true name: kdump.service kernelArguments: - crashkernel=512M Recommended MachineConfig CR to remove ice driver from worker node kdump logs ( 05-kdump-config-worker.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: worker name: 05-kdump-config-worker spec: config: ignition: version: 3.2.0 systemd: units: - enabled: true name: kdump-remove-ice-module.service contents: | [Unit] Description=Remove ice module when doing kdump Before=kdump.service [Service] Type=oneshot RemainAfterExit=true ExecStart=/usr/local/bin/kdump-remove-ice-module.sh [Install] WantedBy=multi-user.target storage: files: - contents: source: data:text/plain;charset=utf-8;base64,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 mode: 448 path: /usr/local/bin/kdump-remove-ice-module.sh Recommended kdump worker node configuration ( 06-kdump-worker.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: worker name: 06-kdump-enable-worker spec: config: ignition: version: 3.2.0 systemd: units: - enabled: true name: kdump.service kernelArguments: - crashkernel=512M 7.6.6. Disable automatic CRI-O cache wipe After an uncontrolled host shutdown or cluster reboot, CRI-O automatically deletes the entire CRI-O cache, causing all images to be pulled from the registry when the node reboots. This can result in unacceptably slow recovery times or recovery failures. To prevent this from happening in single-node OpenShift clusters that you install with GitOps ZTP, disable the CRI-O delete cache feature during cluster installation. Recommended MachineConfig CR to disable CRI-O cache wipe on control plane nodes ( 99-crio-disable-wipe-master.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 99-crio-disable-wipe-master spec: config: ignition: version: 3.2.0 storage: files: - contents: source: data:text/plain;charset=utf-8;base64,W2NyaW9dCmNsZWFuX3NodXRkb3duX2ZpbGUgPSAiIgo= mode: 420 path: /etc/crio/crio.conf.d/99-crio-disable-wipe.toml Recommended MachineConfig CR to disable CRI-O cache wipe on worker nodes ( 99-crio-disable-wipe-worker.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: worker name: 99-crio-disable-wipe-worker spec: config: ignition: version: 3.2.0 storage: files: - contents: source: data:text/plain;charset=utf-8;base64,W2NyaW9dCmNsZWFuX3NodXRkb3duX2ZpbGUgPSAiIgo= mode: 420 path: /etc/crio/crio.conf.d/99-crio-disable-wipe.toml 7.6.7. Configuring crun as the default container runtime The following ContainerRuntimeConfig custom resources (CRs) configure crun as the default OCI container runtime for control plane and worker nodes. The crun container runtime is fast and lightweight and has a low memory footprint. Important For optimal performance, enable crun for control plane and worker nodes in single-node OpenShift, three-node OpenShift, and standard clusters. To avoid the cluster rebooting when the CR is applied, apply the change as a GitOps ZTP additional Day 0 install-time manifest. Recommended ContainerRuntimeConfig CR for control plane nodes ( enable-crun-master.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: ContainerRuntimeConfig metadata: name: enable-crun-master spec: machineConfigPoolSelector: matchLabels: pools.operator.machineconfiguration.openshift.io/master: "" containerRuntimeConfig: defaultRuntime: crun Recommended ContainerRuntimeConfig CR for worker nodes ( enable-crun-worker.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: ContainerRuntimeConfig metadata: name: enable-crun-worker spec: machineConfigPoolSelector: matchLabels: pools.operator.machineconfiguration.openshift.io/worker: "" containerRuntimeConfig: defaultRuntime: crun 7.7. Recommended postinstallation cluster configurations When the cluster installation is complete, the ZTP pipeline applies the following custom resources (CRs) that are required to run DU workloads. Note In GitOps ZTP v4.10 and earlier, you configure UEFI secure boot with a MachineConfig CR. This is no longer required in GitOps ZTP v4.11 and later. In v4.11, you configure UEFI secure boot for single-node OpenShift clusters by updating the spec.clusters.nodes.bootMode field in the SiteConfig CR that you use to install the cluster. For more information, see Deploying a managed cluster with SiteConfig and GitOps ZTP . 7.7.1. Operators Single-node OpenShift clusters that run DU workloads require the following Operators to be installed: Local Storage Operator Logging Operator PTP Operator SR-IOV Network Operator You also need to configure a custom CatalogSource CR, disable the default OperatorHub configuration, and configure an ImageContentSourcePolicy mirror registry that is accessible from the clusters that you install. Recommended Storage Operator namespace and Operator group configuration ( StorageNS.yaml , StorageOperGroup.yaml ) --- apiVersion: v1 kind: Namespace metadata: name: openshift-local-storage annotations: workload.openshift.io/allowed: management --- apiVersion: operators.coreos.com/v1 kind: OperatorGroup metadata: name: openshift-local-storage namespace: openshift-local-storage annotations: {} spec: targetNamespaces: - openshift-local-storage Recommended Cluster Logging Operator namespace and Operator group configuration ( ClusterLogNS.yaml , ClusterLogOperGroup.yaml ) --- apiVersion: v1 kind: Namespace metadata: name: openshift-logging annotations: workload.openshift.io/allowed: management --- apiVersion: operators.coreos.com/v1 kind: OperatorGroup metadata: name: cluster-logging namespace: openshift-logging annotations: {} spec: targetNamespaces: - openshift-logging Recommended PTP Operator namespace and Operator group configuration ( PtpSubscriptionNS.yaml , PtpSubscriptionOperGroup.yaml ) --- apiVersion: v1 kind: Namespace metadata: name: openshift-ptp annotations: workload.openshift.io/allowed: management labels: openshift.io/cluster-monitoring: "true" --- apiVersion: operators.coreos.com/v1 kind: OperatorGroup metadata: name: ptp-operators namespace: openshift-ptp annotations: {} spec: targetNamespaces: - openshift-ptp Recommended SR-IOV Operator namespace and Operator group configuration ( SriovSubscriptionNS.yaml , SriovSubscriptionOperGroup.yaml ) --- apiVersion: v1 kind: Namespace metadata: name: openshift-sriov-network-operator annotations: workload.openshift.io/allowed: management --- apiVersion: operators.coreos.com/v1 kind: OperatorGroup metadata: name: sriov-network-operators namespace: openshift-sriov-network-operator annotations: {} spec: targetNamespaces: - openshift-sriov-network-operator Recommended CatalogSource configuration ( DefaultCatsrc.yaml ) apiVersion: operators.coreos.com/v1alpha1 kind: CatalogSource metadata: name: default-cat-source namespace: openshift-marketplace annotations: target.workload.openshift.io/management: '{"effect": "PreferredDuringScheduling"}' spec: displayName: default-cat-source image: USDimageUrl publisher: Red Hat sourceType: grpc updateStrategy: registryPoll: interval: 1h status: connectionState: lastObservedState: READY Recommended ImageContentSourcePolicy configuration ( DisconnectedICSP.yaml ) apiVersion: operator.openshift.io/v1alpha1 kind: ImageContentSourcePolicy metadata: name: disconnected-internal-icsp annotations: {} spec: repositoryDigestMirrors: - USDmirrors Recommended OperatorHub configuration ( OperatorHub.yaml ) apiVersion: config.openshift.io/v1 kind: OperatorHub metadata: name: cluster annotations: {} spec: disableAllDefaultSources: true 7.7.2. Operator subscriptions Single-node OpenShift clusters that run DU workloads require the following Subscription CRs. The subscription provides the location to download the following Operators: Local Storage Operator Logging Operator PTP Operator SR-IOV Network Operator SRIOV-FEC Operator For each Operator subscription, specify the channel to get the Operator from. The recommended channel is stable . You can specify Manual or Automatic updates. In Automatic mode, the Operator automatically updates to the latest versions in the channel as they become available in the registry. In Manual mode, new Operator versions are installed only when they are explicitly approved. Tip Use Manual mode for subscriptions. This allows you to control the timing of Operator updates to fit within scheduled maintenance windows. Recommended Local Storage Operator subscription ( StorageSubscription.yaml ) apiVersion: operators.coreos.com/v1alpha1 kind: Subscription metadata: name: local-storage-operator namespace: openshift-local-storage annotations: {} spec: channel: "stable" name: local-storage-operator source: redhat-operators-disconnected sourceNamespace: openshift-marketplace installPlanApproval: Manual status: state: AtLatestKnown Recommended SR-IOV Operator subscription ( SriovSubscription.yaml ) apiVersion: operators.coreos.com/v1alpha1 kind: Subscription metadata: name: sriov-network-operator-subscription namespace: openshift-sriov-network-operator annotations: {} spec: channel: "stable" name: sriov-network-operator source: redhat-operators-disconnected sourceNamespace: openshift-marketplace installPlanApproval: Manual status: state: AtLatestKnown Recommended PTP Operator subscription ( PtpSubscription.yaml ) --- apiVersion: operators.coreos.com/v1alpha1 kind: Subscription metadata: name: ptp-operator-subscription namespace: openshift-ptp annotations: {} spec: channel: "stable" name: ptp-operator source: redhat-operators-disconnected sourceNamespace: openshift-marketplace installPlanApproval: Manual status: state: AtLatestKnown Recommended Cluster Logging Operator subscription ( ClusterLogSubscription.yaml ) apiVersion: operators.coreos.com/v1alpha1 kind: Subscription metadata: name: cluster-logging namespace: openshift-logging annotations: {} spec: channel: "stable" name: cluster-logging source: redhat-operators-disconnected sourceNamespace: openshift-marketplace installPlanApproval: Manual status: state: AtLatestKnown 7.7.3. Cluster logging and log forwarding Single-node OpenShift clusters that run DU workloads require logging and log forwarding for debugging. The following ClusterLogging and ClusterLogForwarder custom resources (CRs) are required. Recommended cluster logging configuration ( ClusterLogging.yaml ) apiVersion: logging.openshift.io/v1 kind: ClusterLogging metadata: name: instance namespace: openshift-logging annotations: {} spec: managementState: "Managed" collection: logs: type: "vector" Recommended log forwarding configuration ( ClusterLogForwarder.yaml ) apiVersion: "logging.openshift.io/v1" kind: ClusterLogForwarder metadata: name: instance namespace: openshift-logging annotations: {} spec: outputs: USDoutputs pipelines: USDpipelines Set the spec.outputs.url field to the URL of the Kafka server where the logs are forwarded to. 7.7.4. Performance profile Single-node OpenShift clusters that run DU workloads require a Node Tuning Operator performance profile to use real-time host capabilities and services. Note In earlier versions of OpenShift Container Platform, the Performance Addon Operator was used to implement automatic tuning to achieve low latency performance for OpenShift applications. In OpenShift Container Platform 4.11 and later, this functionality is part of the Node Tuning Operator. The following example PerformanceProfile CR illustrates the required single-node OpenShift cluster configuration. Recommended performance profile configuration ( PerformanceProfile.yaml ) apiVersion: performance.openshift.io/v2 kind: PerformanceProfile metadata: # if you change this name make sure the 'include' line in TunedPerformancePatch.yaml # matches this name: include=openshift-node-performance-USD{PerformanceProfile.metadata.name} # Also in file 'validatorCRs/informDuValidator.yaml': # name: 50-performance-USD{PerformanceProfile.metadata.name} name: openshift-node-performance-profile annotations: ran.openshift.io/reference-configuration: "ran-du.redhat.com" spec: additionalKernelArgs: - "rcupdate.rcu_normal_after_boot=0" - "efi=runtime" - "vfio_pci.enable_sriov=1" - "vfio_pci.disable_idle_d3=1" - "module_blacklist=irdma" cpu: isolated: USDisolated reserved: USDreserved hugepages: defaultHugepagesSize: USDdefaultHugepagesSize pages: - size: USDsize count: USDcount node: USDnode machineConfigPoolSelector: pools.operator.machineconfiguration.openshift.io/USDmcp: "" nodeSelector: node-role.kubernetes.io/USDmcp: '' numa: topologyPolicy: "restricted" # To use the standard (non-realtime) kernel, set enabled to false realTimeKernel: enabled: true workloadHints: # WorkloadHints defines the set of upper level flags for different type of workloads. # See https://github.com/openshift/cluster-node-tuning-operator/blob/master/docs/performanceprofile/performance_profile.md#workloadhints # for detailed descriptions of each item. # The configuration below is set for a low latency, performance mode. realTime: true highPowerConsumption: false perPodPowerManagement: false Table 7.3. PerformanceProfile CR options for single-node OpenShift clusters PerformanceProfile CR field Description metadata.name Ensure that name matches the following fields set in related GitOps ZTP custom resources (CRs): include=openshift-node-performance-USD{PerformanceProfile.metadata.name} in TunedPerformancePatch.yaml name: 50-performance-USD{PerformanceProfile.metadata.name} in validatorCRs/informDuValidator.yaml spec.additionalKernelArgs "efi=runtime" Configures UEFI secure boot for the cluster host. spec.cpu.isolated Set the isolated CPUs. Ensure all of the Hyper-Threading pairs match. Important The reserved and isolated CPU pools must not overlap and together must span all available cores. CPU cores that are not accounted for cause an undefined behaviour in the system. spec.cpu.reserved Set the reserved CPUs. When workload partitioning is enabled, system processes, kernel threads, and system container threads are restricted to these CPUs. All CPUs that are not isolated should be reserved. spec.hugepages.pages Set the number of huge pages ( count ) Set the huge pages size ( size ). Set node to the NUMA node where the hugepages are allocated ( node ) spec.realTimeKernel Set enabled to true to use the realtime kernel. spec.workloadHints Use workloadHints to define the set of top level flags for different type of workloads. The example configuration configures the cluster for low latency and high performance. 7.7.5. Configuring cluster time synchronization Run a one-time system time synchronization job for control plane or worker nodes. Recommended one time time-sync for control plane nodes ( 99-sync-time-once-master.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 99-sync-time-once-master spec: config: ignition: version: 3.2.0 systemd: units: - contents: | [Unit] Description=Sync time once After=network.service [Service] Type=oneshot TimeoutStartSec=300 ExecCondition=/bin/bash -c 'systemctl is-enabled chronyd.service --quiet && exit 1 || exit 0' ExecStart=/usr/sbin/chronyd -n -f /etc/chrony.conf -q RemainAfterExit=yes [Install] WantedBy=multi-user.target enabled: true name: sync-time-once.service Recommended one time time-sync for worker nodes ( 99-sync-time-once-worker.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: worker name: 99-sync-time-once-worker spec: config: ignition: version: 3.2.0 systemd: units: - contents: | [Unit] Description=Sync time once After=network.service [Service] Type=oneshot TimeoutStartSec=300 ExecCondition=/bin/bash -c 'systemctl is-enabled chronyd.service --quiet && exit 1 || exit 0' ExecStart=/usr/sbin/chronyd -n -f /etc/chrony.conf -q RemainAfterExit=yes [Install] WantedBy=multi-user.target enabled: true name: sync-time-once.service 7.7.6. PTP Single-node OpenShift clusters use Precision Time Protocol (PTP) for network time synchronization. The following example PtpConfig CRs illustrate the required PTP configurations for ordinary clocks, boundary clocks, and grandmaster clocks. The exact configuration you apply will depend on the node hardware and specific use case. Recommended PTP ordinary clock configuration ( PtpConfigSlave.yaml ) apiVersion: ptp.openshift.io/v1 kind: PtpConfig metadata: name: ordinary namespace: openshift-ptp annotations: {} spec: profile: - name: "ordinary" # The interface name is hardware-specific interface: USDinterface ptp4lOpts: "-2 -s" phc2sysOpts: "-a -r -n 24" ptpSchedulingPolicy: SCHED_FIFO ptpSchedulingPriority: 10 ptpSettings: logReduce: "true" ptp4lConf: | [global] # # Default Data Set # twoStepFlag 1 slaveOnly 1 priority1 128 priority2 128 domainNumber 24 #utc_offset 37 clockClass 255 clockAccuracy 0xFE offsetScaledLogVariance 0xFFFF free_running 0 freq_est_interval 1 dscp_event 0 dscp_general 0 dataset_comparison G.8275.x G.8275.defaultDS.localPriority 128 # # Port Data Set # logAnnounceInterval -3 logSyncInterval -4 logMinDelayReqInterval -4 logMinPdelayReqInterval -4 announceReceiptTimeout 3 syncReceiptTimeout 0 delayAsymmetry 0 fault_reset_interval -4 neighborPropDelayThresh 20000000 masterOnly 0 G.8275.portDS.localPriority 128 # # Run time options # assume_two_step 0 logging_level 6 path_trace_enabled 0 follow_up_info 0 hybrid_e2e 0 inhibit_multicast_service 0 net_sync_monitor 0 tc_spanning_tree 0 tx_timestamp_timeout 50 unicast_listen 0 unicast_master_table 0 unicast_req_duration 3600 use_syslog 1 verbose 0 summary_interval 0 kernel_leap 1 check_fup_sync 0 clock_class_threshold 7 # # Servo Options # pi_proportional_const 0.0 pi_integral_const 0.0 pi_proportional_scale 0.0 pi_proportional_exponent -0.3 pi_proportional_norm_max 0.7 pi_integral_scale 0.0 pi_integral_exponent 0.4 pi_integral_norm_max 0.3 step_threshold 2.0 first_step_threshold 0.00002 max_frequency 900000000 clock_servo pi sanity_freq_limit 200000000 ntpshm_segment 0 # # Transport options # transportSpecific 0x0 ptp_dst_mac 01:1B:19:00:00:00 p2p_dst_mac 01:80:C2:00:00:0E udp_ttl 1 udp6_scope 0x0E uds_address /var/run/ptp4l # # Default interface options # clock_type OC network_transport L2 delay_mechanism E2E time_stamping hardware tsproc_mode filter delay_filter moving_median delay_filter_length 10 egressLatency 0 ingressLatency 0 boundary_clock_jbod 0 # # Clock description # productDescription ;; revisionData ;; manufacturerIdentity 00:00:00 userDescription ; timeSource 0xA0 recommend: - profile: "ordinary" priority: 4 match: - nodeLabel: "node-role.kubernetes.io/USDmcp" Recommended boundary clock configuration ( PtpConfigBoundary.yaml ) apiVersion: ptp.openshift.io/v1 kind: PtpConfig metadata: name: boundary namespace: openshift-ptp annotations: {} spec: profile: - name: "boundary" ptp4lOpts: "-2" phc2sysOpts: "-a -r -n 24" ptpSchedulingPolicy: SCHED_FIFO ptpSchedulingPriority: 10 ptpSettings: logReduce: "true" ptp4lConf: | # The interface name is hardware-specific [USDiface_slave] masterOnly 0 [USDiface_master_1] masterOnly 1 [USDiface_master_2] masterOnly 1 [USDiface_master_3] masterOnly 1 [global] # # Default Data Set # twoStepFlag 1 slaveOnly 0 priority1 128 priority2 128 domainNumber 24 #utc_offset 37 clockClass 248 clockAccuracy 0xFE offsetScaledLogVariance 0xFFFF free_running 0 freq_est_interval 1 dscp_event 0 dscp_general 0 dataset_comparison G.8275.x G.8275.defaultDS.localPriority 128 # # Port Data Set # logAnnounceInterval -3 logSyncInterval -4 logMinDelayReqInterval -4 logMinPdelayReqInterval -4 announceReceiptTimeout 3 syncReceiptTimeout 0 delayAsymmetry 0 fault_reset_interval -4 neighborPropDelayThresh 20000000 masterOnly 0 G.8275.portDS.localPriority 128 # # Run time options # assume_two_step 0 logging_level 6 path_trace_enabled 0 follow_up_info 0 hybrid_e2e 0 inhibit_multicast_service 0 net_sync_monitor 0 tc_spanning_tree 0 tx_timestamp_timeout 50 unicast_listen 0 unicast_master_table 0 unicast_req_duration 3600 use_syslog 1 verbose 0 summary_interval 0 kernel_leap 1 check_fup_sync 0 clock_class_threshold 135 # # Servo Options # pi_proportional_const 0.0 pi_integral_const 0.0 pi_proportional_scale 0.0 pi_proportional_exponent -0.3 pi_proportional_norm_max 0.7 pi_integral_scale 0.0 pi_integral_exponent 0.4 pi_integral_norm_max 0.3 step_threshold 2.0 first_step_threshold 0.00002 max_frequency 900000000 clock_servo pi sanity_freq_limit 200000000 ntpshm_segment 0 # # Transport options # transportSpecific 0x0 ptp_dst_mac 01:1B:19:00:00:00 p2p_dst_mac 01:80:C2:00:00:0E udp_ttl 1 udp6_scope 0x0E uds_address /var/run/ptp4l # # Default interface options # clock_type BC network_transport L2 delay_mechanism E2E time_stamping hardware tsproc_mode filter delay_filter moving_median delay_filter_length 10 egressLatency 0 ingressLatency 0 boundary_clock_jbod 0 # # Clock description # productDescription ;; revisionData ;; manufacturerIdentity 00:00:00 userDescription ; timeSource 0xA0 recommend: - profile: "boundary" priority: 4 match: - nodeLabel: "node-role.kubernetes.io/USDmcp" Recommended PTP Westport Channel e810 grandmaster clock configuration ( PtpConfigGmWpc.yaml ) # The grandmaster profile is provided for testing only # It is not installed on production clusters apiVersion: ptp.openshift.io/v1 kind: PtpConfig metadata: name: grandmaster namespace: openshift-ptp annotations: {} spec: profile: - name: "grandmaster" ptp4lOpts: "-2 --summary_interval -4" phc2sysOpts: -r -u 0 -m -O -37 -N 8 -R 16 -s USDiface_master -n 24 ptpSchedulingPolicy: SCHED_FIFO ptpSchedulingPriority: 10 ptpSettings: logReduce: "true" plugins: e810: enableDefaultConfig: false settings: LocalMaxHoldoverOffSet: 1500 LocalHoldoverTimeout: 14400 MaxInSpecOffset: 100 pins: USDe810_pins # "USDiface_master": # "U.FL2": "0 2" # "U.FL1": "0 1" # "SMA2": "0 2" # "SMA1": "0 1" ublxCmds: - args: #ubxtool -P 29.20 -z CFG-HW-ANT_CFG_VOLTCTRL,1 - "-P" - "29.20" - "-z" - "CFG-HW-ANT_CFG_VOLTCTRL,1" reportOutput: false - args: #ubxtool -P 29.20 -e GPS - "-P" - "29.20" - "-e" - "GPS" reportOutput: false - args: #ubxtool -P 29.20 -d Galileo - "-P" - "29.20" - "-d" - "Galileo" reportOutput: false - args: #ubxtool -P 29.20 -d GLONASS - "-P" - "29.20" - "-d" - "GLONASS" reportOutput: false - args: #ubxtool -P 29.20 -d BeiDou - "-P" - "29.20" - "-d" - "BeiDou" reportOutput: false - args: #ubxtool -P 29.20 -d SBAS - "-P" - "29.20" - "-d" - "SBAS" reportOutput: false - args: #ubxtool -P 29.20 -t -w 5 -v 1 -e SURVEYIN,600,50000 - "-P" - "29.20" - "-t" - "-w" - "5" - "-v" - "1" - "-e" - "SURVEYIN,600,50000" reportOutput: true - args: #ubxtool -P 29.20 -p MON-HW - "-P" - "29.20" - "-p" - "MON-HW" reportOutput: true - args: #ubxtool -P 29.20 -p CFG-MSG,1,38,300 - "-P" - "29.20" - "-p" - "CFG-MSG,1,38,300" reportOutput: true ts2phcOpts: " " ts2phcConf: | [nmea] ts2phc.master 1 [global] use_syslog 0 verbose 1 logging_level 7 ts2phc.pulsewidth 100000000 #cat /dev/GNSS to find available serial port #example value of gnss_serialport is /dev/ttyGNSS_1700_0 ts2phc.nmea_serialport USDgnss_serialport leapfile /usr/share/zoneinfo/leap-seconds.list [USDiface_master] ts2phc.extts_polarity rising ts2phc.extts_correction 0 ptp4lConf: | [USDiface_master] masterOnly 1 [USDiface_master_1] masterOnly 1 [USDiface_master_2] masterOnly 1 [USDiface_master_3] masterOnly 1 [global] # # Default Data Set # twoStepFlag 1 priority1 128 priority2 128 domainNumber 24 #utc_offset 37 clockClass 6 clockAccuracy 0x27 offsetScaledLogVariance 0xFFFF free_running 0 freq_est_interval 1 dscp_event 0 dscp_general 0 dataset_comparison G.8275.x G.8275.defaultDS.localPriority 128 # # Port Data Set # logAnnounceInterval -3 logSyncInterval -4 logMinDelayReqInterval -4 logMinPdelayReqInterval 0 announceReceiptTimeout 3 syncReceiptTimeout 0 delayAsymmetry 0 fault_reset_interval -4 neighborPropDelayThresh 20000000 masterOnly 0 G.8275.portDS.localPriority 128 # # Run time options # assume_two_step 0 logging_level 6 path_trace_enabled 0 follow_up_info 0 hybrid_e2e 0 inhibit_multicast_service 0 net_sync_monitor 0 tc_spanning_tree 0 tx_timestamp_timeout 50 unicast_listen 0 unicast_master_table 0 unicast_req_duration 3600 use_syslog 1 verbose 0 summary_interval -4 kernel_leap 1 check_fup_sync 0 clock_class_threshold 7 # # Servo Options # pi_proportional_const 0.0 pi_integral_const 0.0 pi_proportional_scale 0.0 pi_proportional_exponent -0.3 pi_proportional_norm_max 0.7 pi_integral_scale 0.0 pi_integral_exponent 0.4 pi_integral_norm_max 0.3 step_threshold 2.0 first_step_threshold 0.00002 clock_servo pi sanity_freq_limit 200000000 ntpshm_segment 0 # # Transport options # transportSpecific 0x0 ptp_dst_mac 01:1B:19:00:00:00 p2p_dst_mac 01:80:C2:00:00:0E udp_ttl 1 udp6_scope 0x0E uds_address /var/run/ptp4l # # Default interface options # clock_type BC network_transport L2 delay_mechanism E2E time_stamping hardware tsproc_mode filter delay_filter moving_median delay_filter_length 10 egressLatency 0 ingressLatency 0 boundary_clock_jbod 0 # # Clock description # productDescription ;; revisionData ;; manufacturerIdentity 00:00:00 userDescription ; timeSource 0x20 recommend: - profile: "grandmaster" priority: 4 match: - nodeLabel: "node-role.kubernetes.io/USDmcp" The following optional PtpOperatorConfig CR configures PTP events reporting for the node. Recommended PTP events configuration ( PtpOperatorConfigForEvent.yaml ) apiVersion: ptp.openshift.io/v1 kind: PtpOperatorConfig metadata: name: default namespace: openshift-ptp annotations: {} spec: daemonNodeSelector: node-role.kubernetes.io/USDmcp: "" ptpEventConfig: enableEventPublisher: true transportHost: "http://ptp-event-publisher-service-NODE_NAME.openshift-ptp.svc.cluster.local:9043" 7.7.7. Extended Tuned profile Single-node OpenShift clusters that run DU workloads require additional performance tuning configurations necessary for high-performance workloads. The following example Tuned CR extends the Tuned profile: Recommended extended Tuned profile configuration ( TunedPerformancePatch.yaml ) apiVersion: tuned.openshift.io/v1 kind: Tuned metadata: name: performance-patch namespace: openshift-cluster-node-tuning-operator annotations: {} spec: profile: - name: performance-patch # Please note: # - The 'include' line must match the associated PerformanceProfile name, following below pattern # include=openshift-node-performance-USD{PerformanceProfile.metadata.name} # - When using the standard (non-realtime) kernel, remove the kernel.timer_migration override from # the [sysctl] section and remove the entire section if it is empty. data: | [main] summary=Configuration changes profile inherited from performance created tuned include=openshift-node-performance-openshift-node-performance-profile [sysctl] kernel.timer_migration=1 [scheduler] group.ice-ptp=0:f:10:*:ice-ptp.* group.ice-gnss=0:f:10:*:ice-gnss.* [service] service.stalld=start,enable service.chronyd=stop,disable recommend: - machineConfigLabels: machineconfiguration.openshift.io/role: "USDmcp" priority: 19 profile: performance-patch Table 7.4. Tuned CR options for single-node OpenShift clusters Tuned CR field Description spec.profile.data The include line that you set in spec.profile.data must match the associated PerformanceProfile CR name. For example, include=openshift-node-performance-USD{PerformanceProfile.metadata.name} . When using the non-realtime kernel, remove the timer_migration override line from the [sysctl] section. 7.7.8. SR-IOV Single root I/O virtualization (SR-IOV) is commonly used to enable fronthaul and midhaul networks. The following YAML example configures SR-IOV for a single-node OpenShift cluster. Note The configuration of the SriovNetwork CR will vary depending on your specific network and infrastructure requirements. Recommended SriovOperatorConfig CR configuration ( SriovOperatorConfig.yaml ) apiVersion: sriovnetwork.openshift.io/v1 kind: SriovOperatorConfig metadata: name: default namespace: openshift-sriov-network-operator annotations: {} spec: configDaemonNodeSelector: "node-role.kubernetes.io/USDmcp": "" # Injector and OperatorWebhook pods can be disabled (set to "false") below # to reduce the number of management pods. It is recommended to start with the # webhook and injector pods enabled, and only disable them after verifying the # correctness of user manifests. # If the injector is disabled, containers using sr-iov resources must explicitly assign # them in the "requests"/"limits" section of the container spec, for example: # containers: # - name: my-sriov-workload-container # resources: # limits: # openshift.io/<resource_name>: "1" # requests: # openshift.io/<resource_name>: "1" enableInjector: true enableOperatorWebhook: true logLevel: 0 Table 7.5. SriovOperatorConfig CR options for single-node OpenShift clusters SriovOperatorConfig CR field Description spec.enableInjector Disable Injector pods to reduce the number of management pods. Start with the Injector pods enabled, and only disable them after verifying the user manifests. If the injector is disabled, containers that use SR-IOV resources must explicitly assign them in the requests and limits section of the container spec. For example: containers: - name: my-sriov-workload-container resources: limits: openshift.io/<resource_name>: "1" requests: openshift.io/<resource_name>: "1" spec.enableOperatorWebhook Disable OperatorWebhook pods to reduce the number of management pods. Start with the OperatorWebhook pods enabled, and only disable them after verifying the user manifests. Recommended SriovNetwork configuration ( SriovNetwork.yaml ) apiVersion: sriovnetwork.openshift.io/v1 kind: SriovNetwork metadata: name: "" namespace: openshift-sriov-network-operator annotations: {} spec: # resourceName: "" networkNamespace: openshift-sriov-network-operator # vlan: "" # spoofChk: "" # ipam: "" # linkState: "" # maxTxRate: "" # minTxRate: "" # vlanQoS: "" # trust: "" # capabilities: "" Table 7.6. SriovNetwork CR options for single-node OpenShift clusters SriovNetwork CR field Description spec.vlan Configure vlan with the VLAN for the midhaul network. Recommended SriovNetworkNodePolicy CR configuration ( SriovNetworkNodePolicy.yaml ) apiVersion: sriovnetwork.openshift.io/v1 kind: SriovNetworkNodePolicy metadata: name: USDname namespace: openshift-sriov-network-operator annotations: {} spec: # The attributes for Mellanox/Intel based NICs as below. # deviceType: netdevice/vfio-pci # isRdma: true/false deviceType: USDdeviceType isRdma: USDisRdma nicSelector: # The exact physical function name must match the hardware used pfNames: [USDpfNames] nodeSelector: node-role.kubernetes.io/USDmcp: "" numVfs: USDnumVfs priority: USDpriority resourceName: USDresourceName Table 7.7. SriovNetworkPolicy CR options for single-node OpenShift clusters SriovNetworkNodePolicy CR field Description spec.deviceType Configure deviceType as vfio-pci or netdevice . For Mellanox NICs, set deviceType: netdevice , and isRdma: true . For Intel based NICs, set deviceType: vfio-pci and isRdma: false . spec.nicSelector.pfNames Specifies the interface connected to the fronthaul network. spec.numVfs Specifies the number of VFs for the fronthaul network. spec.nicSelector.pfNames The exact name of physical function must match the hardware. Recommended SR-IOV kernel configurations ( 07-sriov-related-kernel-args-master.yaml ) apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 07-sriov-related-kernel-args-master spec: config: ignition: version: 3.2.0 kernelArguments: - intel_iommu=on - iommu=pt 7.7.9. Console Operator Use the cluster capabilities feature to prevent the Console Operator from being installed. When the node is centrally managed it is not needed. Removing the Operator provides additional space and capacity for application workloads. To disable the Console Operator during the installation of the managed cluster, set the following in the spec.clusters.0.installConfigOverrides field of the SiteConfig custom resource (CR): installConfigOverrides: "{\"capabilities\":{\"baselineCapabilitySet\": \"None\" }}" 7.7.10. Alertmanager Single-node OpenShift clusters that run DU workloads require reduced CPU resources consumed by the OpenShift Container Platform monitoring components. The following ConfigMap custom resource (CR) disables Alertmanager. Recommended cluster monitoring configuration ( ReduceMonitoringFootprint.yaml ) apiVersion: v1 kind: ConfigMap metadata: name: cluster-monitoring-config namespace: openshift-monitoring annotations: {} data: config.yaml: | alertmanagerMain: enabled: false telemeterClient: enabled: false prometheusK8s: retention: 24h 7.7.11. Operator Lifecycle Manager Single-node OpenShift clusters that run distributed unit workloads require consistent access to CPU resources. Operator Lifecycle Manager (OLM) collects performance data from Operators at regular intervals, resulting in an increase in CPU utilisation. The following ConfigMap custom resource (CR) disables the collection of Operator performance data by OLM. Recommended cluster OLM configuration ( ReduceOLMFootprint.yaml ) apiVersion: v1 kind: ConfigMap metadata: name: collect-profiles-config namespace: openshift-operator-lifecycle-manager data: pprof-config.yaml: | disabled: True 7.7.12. LVM Storage You can dynamically provision local storage on single-node OpenShift clusters with Logical Volume Manager (LVM) Storage. Note The recommended storage solution for single-node OpenShift is the Local Storage Operator. Alternatively, you can use LVM Storage but it requires additional CPU resources to be allocated. The following YAML example configures the storage of the node to be available to OpenShift Container Platform applications. Recommended LVMCluster configuration ( StorageLVMCluster.yaml ) apiVersion: lvm.topolvm.io/v1alpha1 kind: LVMCluster metadata: name: odf-lvmcluster namespace: openshift-storage spec: storage: deviceClasses: - name: vg1 deviceSelector: paths: - /usr/disk/by-path/pci-0000:11:00.0-nvme-1 thinPoolConfig: name: thin-pool-1 overprovisionRatio: 10 sizePercent: 90 Table 7.8. LVMCluster CR options for single-node OpenShift clusters LVMCluster CR field Description deviceSelector.paths Configure the disks used for LVM storage. If no disks are specified, the LVM Storage uses all the unused disks in the specified thin pool. 7.7.13. Network diagnostics Single-node OpenShift clusters that run DU workloads require less inter-pod network connectivity checks to reduce the additional load created by these pods. The following custom resource (CR) disables these checks. Recommended network diagnostics configuration ( DisableSnoNetworkDiag.yaml ) apiVersion: operator.openshift.io/v1 kind: Network metadata: name: cluster annotations: {} spec: disableNetworkDiagnostics: true Additional resources Deploying far edge sites using ZTP

Commands:
apiVersion: ran.openshift.io/v1 kind: SiteConfig metadata: name: "<site_name>" namespace: "<site_name>" spec: baseDomain: "example.com" cpuPartitioningMode: AllNodes 1
oc debug node/example-sno-1
sh-4.4# pgrep ovn | while read i; do taskset -cp USDi; done
pid 8481's current affinity list: 0-1,52-53 pid 8726's current affinity list: 0-1,52-53 pid 9088's current affinity list: 0-1,52-53 pid 9945's current affinity list: 0-1,52-53 pid 10387's current affinity list: 0-1,52-53 pid 12123's current affinity list: 0-1,52-53 pid 13313's current affinity list: 0-1,52-53
sh-4.4# pgrep systemd | while read i; do taskset -cp USDi; done
pid 1's current affinity list: 0-1,52-53 pid 938's current affinity list: 0-1,52-53 pid 962's current affinity list: 0-1,52-53 pid 1197's current affinity list: 0-1,52-53
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: container-mount-namespace-and-kubelet-conf-master spec: config: ignition: version: 3.2.0 storage: files: - contents: source: data:text/plain;charset=utf-8;base64,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 mode: 493 path: /usr/local/bin/extractExecStart - contents: source: data:text/plain;charset=utf-8;base64,IyEvYmluL2Jhc2gKbnNlbnRlciAtLW1vdW50PS9ydW4vY29udGFpbmVyLW1vdW50LW5hbWVzcGFjZS9tbnQgIiRAIgo= mode: 493 path: /usr/local/bin/nsenterCmns systemd: units: - contents: | [Unit] Description=Manages a mount namespace that both kubelet and crio can use to share their container-specific mounts [Service] Type=oneshot RemainAfterExit=yes RuntimeDirectory=container-mount-namespace Environment=RUNTIME_DIRECTORY=%t/container-mount-namespace Environment=BIND_POINT=%t/container-mount-namespace/mnt ExecStartPre=bash -c "findmnt USD{RUNTIME_DIRECTORY} || mount --make-unbindable --bind USD{RUNTIME_DIRECTORY} USD{RUNTIME_DIRECTORY}" ExecStartPre=touch USD{BIND_POINT} ExecStart=unshare --mount=USD{BIND_POINT} --propagation slave mount --make-rshared / ExecStop=umount -R USD{RUNTIME_DIRECTORY} name: container-mount-namespace.service - dropins: - contents: | [Unit] Wants=container-mount-namespace.service After=container-mount-namespace.service [Service] ExecStartPre=/usr/local/bin/extractExecStart %n /%t/%N-execstart.env ORIG_EXECSTART EnvironmentFile=-/%t/%N-execstart.env ExecStart= ExecStart=bash -c "nsenter --mount=%t/container-mount-namespace/mnt USD{ORIG_EXECSTART}" name: 90-container-mount-namespace.conf name: crio.service - dropins: - contents: | [Unit] Wants=container-mount-namespace.service After=container-mount-namespace.service [Service] ExecStartPre=/usr/local/bin/extractExecStart %n /%t/%N-execstart.env ORIG_EXECSTART EnvironmentFile=-/%t/%N-execstart.env ExecStart= ExecStart=bash -c "nsenter --mount=%t/container-mount-namespace/mnt USD{ORIG_EXECSTART} --housekeeping-interval=30s" name: 90-container-mount-namespace.conf - contents: | [Service] Environment="OPENSHIFT_MAX_HOUSEKEEPING_INTERVAL_DURATION=60s" Environment="OPENSHIFT_EVICTION_MONITORING_PERIOD_DURATION=30s" name: 30-kubelet-interval-tuning.conf name: kubelet.service
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: load-sctp-module-master spec: config: ignition: version: 2.2.0 storage: files: - contents: source: data:, verification: {} filesystem: root mode: 420 path: /etc/modprobe.d/sctp-blacklist.conf - contents: source: data:text/plain;charset=utf-8,sctp filesystem: root mode: 420 path: /etc/modules-load.d/sctp-load.conf
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: worker name: load-sctp-module-worker spec: config: ignition: version: 2.2.0 storage: files: - contents: source: data:, verification: {} filesystem: root mode: 420 path: /etc/modprobe.d/sctp-blacklist.conf - contents: source: data:text/plain;charset=utf-8,sctp filesystem: root mode: 420 path: /etc/modules-load.d/sctp-load.conf
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 08-set-rcu-normal-master spec: config: ignition: version: 3.2.0 storage: files: - contents: source: data:text/plain;charset=utf-8;base64,IyEvYmluL2Jhc2gKIwojIERpc2FibGUgcmN1X2V4cGVkaXRlZCBhZnRlciBub2RlIGhhcyBmaW5pc2hlZCBib290aW5nCiMKIyBUaGUgZGVmYXVsdHMgYmVsb3cgY2FuIGJlIG92ZXJyaWRkZW4gdmlhIGVudmlyb25tZW50IHZhcmlhYmxlcwojCgojIERlZmF1bHQgd2FpdCB0aW1lIGlzIDYwMHMgPSAxMG06Ck1BWElNVU1fV0FJVF9USU1FPSR7TUFYSU1VTV9XQUlUX1RJTUU6LTYwMH0KCiMgRGVmYXVsdCBzdGVhZHktc3RhdGUgdGhyZXNob2xkID0gMiUKIyBBbGxvd2VkIHZhbHVlczoKIyAgNCAgLSBhYnNvbHV0ZSBwb2QgY291bnQgKCsvLSkKIyAgNCUgLSBwZXJjZW50IGNoYW5nZSAoKy8tKQojICAtMSAtIGRpc2FibGUgdGhlIHN0ZWFkeS1zdGF0ZSBjaGVjawpTVEVBRFlfU1RBVEVfVEhSRVNIT0xEPSR7U1RFQURZX1NUQVRFX1RIUkVTSE9MRDotMiV9CgojIERlZmF1bHQgc3RlYWR5LXN0YXRlIHdpbmRvdyA9IDYwcwojIElmIHRoZSBydW5uaW5nIHBvZCBjb3VudCBzdGF5cyB3aXRoaW4gdGhlIGdpdmVuIHRocmVzaG9sZCBmb3IgdGhpcyB0aW1lCiMgcGVyaW9kLCByZXR1cm4gQ1BVIHV0aWxpemF0aW9uIHRvIG5vcm1hbCBiZWZvcmUgdGhlIG1heGltdW0gd2FpdCB0aW1lIGhhcwojIGV4cGlyZXMKU1RFQURZX1NUQVRFX1dJTkRPVz0ke1NURUFEWV9TVEFURV9XSU5ET1c6LTYwfQoKIyBEZWZhdWx0IHN0ZWFkeS1zdGF0ZSBhbGxvd3MgYW55IHBvZCBjb3VudCB0byBiZSAic3RlYWR5IHN0YXRlIgojIEluY3JlYXNpbmcgdGhpcyB3aWxsIHNraXAgYW55IHN0ZWFkeS1zdGF0ZSBjaGVja3MgdW50aWwgdGhlIGNvdW50IHJpc2VzIGFib3ZlCiMgdGhpcyBudW1iZXIgdG8gYXZvaWQgZmFsc2UgcG9zaXRpdmVzIGlmIHRoZXJlIGFyZSBzb21lIHBlcmlvZHMgd2hlcmUgdGhlCiMgY291bnQgZG9lc24ndCBpbmNyZWFzZSBidXQgd2Uga25vdyB3ZSBjYW4ndCBiZSBhdCBzdGVhZHktc3RhdGUgeWV0LgpTVEVBRFlfU1RBVEVfTUlOSU1VTT0ke1NURUFEWV9TVEFURV9NSU5JTVVNOi0wfQoKIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIyMjIwoKd2l0aGluKCkgewogIGxvY2FsIGxhc3Q9JDEgY3VycmVudD0kMiB0aHJlc2hvbGQ9JDMKICBsb2NhbCBkZWx0YT0wIHBjaGFuZ2UKICBkZWx0YT0kKCggY3VycmVudCAtIGxhc3QgKSkKICBpZiBbWyAkY3VycmVudCAtZXEgJGxhc3QgXV07IHRoZW4KICAgIHBjaGFuZ2U9MAogIGVsaWYgW1sgJGxhc3QgLWVxIDAgXV07IHRoZW4KICAgIHBjaGFuZ2U9MTAwMDAwMAogIGVsc2UKICAgIHBjaGFuZ2U9JCgoICggIiRkZWx0YSIgKiAxMDApIC8gbGFzdCApKQogIGZpCiAgZWNobyAtbiAibGFzdDokbGFzdCBjdXJyZW50OiRjdXJyZW50IGRlbHRhOiRkZWx0YSBwY2hhbmdlOiR7cGNoYW5nZX0lOiAiCiAgbG9jYWwgYWJzb2x1dGUgbGltaXQKICBjYXNlICR0aHJlc2hvbGQgaW4KICAgIColKQogICAgICBhYnNvbHV0ZT0ke3BjaGFuZ2UjIy19ICMgYWJzb2x1dGUgdmFsdWUKICAgICAgbGltaXQ9JHt0aHJlc2hvbGQlJSV9CiAgICAgIDs7CiAgICAqKQogICAgICBhYnNvbHV0ZT0ke2RlbHRhIyMtfSAjIGFic29sdXRlIHZhbHVlCiAgICAgIGxpbWl0PSR0aHJlc2hvbGQKICAgICAgOzsKICBlc2FjCiAgaWYgW1sgJGFic29sdXRlIC1sZSAkbGltaXQgXV07IHRoZW4KICAgIGVjaG8gIndpdGhpbiAoKy8tKSR0aHJlc2hvbGQiCiAgICByZXR1cm4gMAogIGVsc2UKICAgIGVjaG8gIm91dHNpZGUgKCsvLSkkdGhyZXNob2xkIgogICAgcmV0dXJuIDEKICBmaQp9CgpzdGVhZHlzdGF0ZSgpIHsKICBsb2NhbCBsYXN0PSQxIGN1cnJlbnQ9JDIKICBpZiBbWyAkbGFzdCAtbHQgJFNURUFEWV9TVEFURV9NSU5JTVVNIF1dOyB0aGVuCiAgICBlY2hvICJsYXN0OiRsYXN0IGN1cnJlbnQ6JGN1cnJlbnQgV2FpdGluZyB0byByZWFjaCAkU1RFQURZX1NUQVRFX01JTklNVU0gYmVmb3JlIGNoZWNraW5nIGZvciBzdGVhZHktc3RhdGUiCiAgICByZXR1cm4gMQogIGZpCiAgd2l0aGluICIkbGFzdCIgIiRjdXJyZW50IiAiJFNURUFEWV9TVEFURV9USFJFU0hPTEQiCn0KCndhaXRGb3JSZWFkeSgpIHsKICBsb2dnZXIgIlJlY292ZXJ5OiBXYWl0aW5nICR7TUFYSU1VTV9XQUlUX1RJTUV9cyBmb3IgdGhlIGluaXRpYWxpemF0aW9uIHRvIGNvbXBsZXRlIgogIGxvY2FsIHQ9MCBzPTEwCiAgbG9jYWwgbGFzdENjb3VudD0wIGNjb3VudD0wIHN0ZWFkeVN0YXRlVGltZT0wCiAgd2hpbGUgW1sgJHQgLWx0ICRNQVhJTVVNX1dBSVRfVElNRSBdXTsgZG8KICAgIHNsZWVwICRzCiAgICAoKHQgKz0gcykpCiAgICAjIERldGVjdCBzdGVhZHktc3RhdGUgcG9kIGNvdW50CiAgICBjY291bnQ9JChjcmljdGwgcHMgMj4vZGV2L251bGwgfCB3YyAtbCkKICAgIGlmIFtbICRjY291bnQgLWd0IDAgXV0gJiYgc3RlYWR5c3RhdGUgIiRsYXN0Q2NvdW50IiAiJGNjb3VudCI7IHRoZW4KICAgICAgKChzdGVhZHlTdGF0ZVRpbWUgKz0gcykpCiAgICAgIGVjaG8gIlN0ZWFkeS1zdGF0ZSBmb3IgJHtzdGVhZHlTdGF0ZVRpbWV9cy8ke1NURUFEWV9TVEFURV9XSU5ET1d9cyIKICAgICAgaWYgW1sgJHN0ZWFkeVN0YXRlVGltZSAtZ2UgJFNURUFEWV9TVEFURV9XSU5ET1cgXV07IHRoZW4KICAgICAgICBsb2dnZXIgIlJlY292ZXJ5OiBTdGVhZHktc3RhdGUgKCsvLSAkU1RFQURZX1NUQVRFX1RIUkVTSE9MRCkgZm9yICR7U1RFQURZX1NUQVRFX1dJTkRPV31zOiBEb25lIgogICAgICAgIHJldHVybiAwCiAgICAgIGZpCiAgICBlbHNlCiAgICAgIGlmIFtbICRzdGVhZHlTdGF0ZVRpbWUgLWd0IDAgXV07IHRoZW4KICAgICAgICBlY2hvICJSZXNldHRpbmcgc3RlYWR5LXN0YXRlIHRpbWVyIgogICAgICAgIHN0ZWFkeVN0YXRlVGltZT0wCiAgICAgIGZpCiAgICBmaQogICAgbGFzdENjb3VudD0kY2NvdW50CiAgZG9uZQogIGxvZ2dlciAiUmVjb3Zlcnk6IFJlY292ZXJ5IENvbXBsZXRlIFRpbWVvdXQiCn0KCnNldFJjdU5vcm1hbCgpIHsKICBlY2hvICJTZXR0aW5nIHJjdV9ub3JtYWwgdG8gMSIKICBlY2hvIDEgPiAvc3lzL2tlcm5lbC9yY3Vfbm9ybWFsCn0KCm1haW4oKSB7CiAgd2FpdEZvclJlYWR5CiAgZWNobyAiV2FpdGluZyBmb3Igc3RlYWR5IHN0YXRlIHRvb2s6ICQoYXdrICd7cHJpbnQgaW50KCQxLzM2MDApImgiLCBpbnQoKCQxJTM2MDApLzYwKSJtIiwgaW50KCQxJTYwKSJzIn0nIC9wcm9jL3VwdGltZSkiCiAgc2V0UmN1Tm9ybWFsCn0KCmlmIFtbICIke0JBU0hfU09VUkNFWzBdfSIgPSAiJHswfSIgXV07IHRoZW4KICBtYWluICIke0B9IgogIGV4aXQgJD8KZmkK mode: 493 path: /usr/local/bin/set-rcu-normal.sh systemd: units: - contents: | [Unit] Description=Disable rcu_expedited after node has finished booting by setting rcu_normal to 1 [Service] Type=simple ExecStart=/usr/local/bin/set-rcu-normal.sh # Maximum wait time is 600s = 10m: Environment=MAXIMUM_WAIT_TIME=600 # Steady-state threshold = 2% # Allowed values: # 4 - absolute pod count (+/-) # 4% - percent change (+/-) # -1 - disable the steady-state check # Note: '%' must be escaped as '%%' in systemd unit files Environment=STEADY_STATE_THRESHOLD=2%% # Steady-state window = 120s # If the running pod count stays within the given threshold for this time # period, return CPU utilization to normal before the maximum wait time has # expires Environment=STEADY_STATE_WINDOW=120 # Steady-state minimum = 40 # Increasing this will skip any steady-state checks until the count rises above # this number to avoid false positives if there are some periods where the # count doesn't increase but we know we can't be at steady-state yet. Environment=STEADY_STATE_MINIMUM=40 [Install] WantedBy=multi-user.target enabled: true name: set-rcu-normal.service
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 05-kdump-config-master spec: config: ignition: version: 3.2.0 systemd: units: - enabled: true name: kdump-remove-ice-module.service contents: | [Unit] Description=Remove ice module when doing kdump Before=kdump.service [Service] Type=oneshot RemainAfterExit=true ExecStart=/usr/local/bin/kdump-remove-ice-module.sh [Install] WantedBy=multi-user.target storage: files: - contents: source: data:text/plain;charset=utf-8;base64,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 mode: 448 path: /usr/local/bin/kdump-remove-ice-module.sh
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 06-kdump-enable-master spec: config: ignition: version: 3.2.0 systemd: units: - enabled: true name: kdump.service kernelArguments: - crashkernel=512M
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: worker name: 05-kdump-config-worker spec: config: ignition: version: 3.2.0 systemd: units: - enabled: true name: kdump-remove-ice-module.service contents: | [Unit] Description=Remove ice module when doing kdump Before=kdump.service [Service] Type=oneshot RemainAfterExit=true ExecStart=/usr/local/bin/kdump-remove-ice-module.sh [Install] WantedBy=multi-user.target storage: files: - contents: source: data:text/plain;charset=utf-8;base64,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 mode: 448 path: /usr/local/bin/kdump-remove-ice-module.sh
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: worker name: 06-kdump-enable-worker spec: config: ignition: version: 3.2.0 systemd: units: - enabled: true name: kdump.service kernelArguments: - crashkernel=512M
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 99-crio-disable-wipe-master spec: config: ignition: version: 3.2.0 storage: files: - contents: source: data:text/plain;charset=utf-8;base64,W2NyaW9dCmNsZWFuX3NodXRkb3duX2ZpbGUgPSAiIgo= mode: 420 path: /etc/crio/crio.conf.d/99-crio-disable-wipe.toml
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: worker name: 99-crio-disable-wipe-worker spec: config: ignition: version: 3.2.0 storage: files: - contents: source: data:text/plain;charset=utf-8;base64,W2NyaW9dCmNsZWFuX3NodXRkb3duX2ZpbGUgPSAiIgo= mode: 420 path: /etc/crio/crio.conf.d/99-crio-disable-wipe.toml
apiVersion: machineconfiguration.openshift.io/v1 kind: ContainerRuntimeConfig metadata: name: enable-crun-master spec: machineConfigPoolSelector: matchLabels: pools.operator.machineconfiguration.openshift.io/master: "" containerRuntimeConfig: defaultRuntime: crun
apiVersion: machineconfiguration.openshift.io/v1 kind: ContainerRuntimeConfig metadata: name: enable-crun-worker spec: machineConfigPoolSelector: matchLabels: pools.operator.machineconfiguration.openshift.io/worker: "" containerRuntimeConfig: defaultRuntime: crun
--- apiVersion: v1 kind: Namespace metadata: name: openshift-local-storage annotations: workload.openshift.io/allowed: management --- apiVersion: operators.coreos.com/v1 kind: OperatorGroup metadata: name: openshift-local-storage namespace: openshift-local-storage annotations: {} spec: targetNamespaces: - openshift-local-storage
--- apiVersion: v1 kind: Namespace metadata: name: openshift-logging annotations: workload.openshift.io/allowed: management --- apiVersion: operators.coreos.com/v1 kind: OperatorGroup metadata: name: cluster-logging namespace: openshift-logging annotations: {} spec: targetNamespaces: - openshift-logging
--- apiVersion: v1 kind: Namespace metadata: name: openshift-ptp annotations: workload.openshift.io/allowed: management labels: openshift.io/cluster-monitoring: "true" --- apiVersion: operators.coreos.com/v1 kind: OperatorGroup metadata: name: ptp-operators namespace: openshift-ptp annotations: {} spec: targetNamespaces: - openshift-ptp
--- apiVersion: v1 kind: Namespace metadata: name: openshift-sriov-network-operator annotations: workload.openshift.io/allowed: management --- apiVersion: operators.coreos.com/v1 kind: OperatorGroup metadata: name: sriov-network-operators namespace: openshift-sriov-network-operator annotations: {} spec: targetNamespaces: - openshift-sriov-network-operator
apiVersion: operators.coreos.com/v1alpha1 kind: CatalogSource metadata: name: default-cat-source namespace: openshift-marketplace annotations: target.workload.openshift.io/management: '{"effect": "PreferredDuringScheduling"}' spec: displayName: default-cat-source image: USDimageUrl publisher: Red Hat sourceType: grpc updateStrategy: registryPoll: interval: 1h status: connectionState: lastObservedState: READY
apiVersion: operator.openshift.io/v1alpha1 kind: ImageContentSourcePolicy metadata: name: disconnected-internal-icsp annotations: {} spec: repositoryDigestMirrors: - USDmirrors
apiVersion: config.openshift.io/v1 kind: OperatorHub metadata: name: cluster annotations: {} spec: disableAllDefaultSources: true
apiVersion: operators.coreos.com/v1alpha1 kind: Subscription metadata: name: local-storage-operator namespace: openshift-local-storage annotations: {} spec: channel: "stable" name: local-storage-operator source: redhat-operators-disconnected sourceNamespace: openshift-marketplace installPlanApproval: Manual status: state: AtLatestKnown
apiVersion: operators.coreos.com/v1alpha1 kind: Subscription metadata: name: sriov-network-operator-subscription namespace: openshift-sriov-network-operator annotations: {} spec: channel: "stable" name: sriov-network-operator source: redhat-operators-disconnected sourceNamespace: openshift-marketplace installPlanApproval: Manual status: state: AtLatestKnown
--- apiVersion: operators.coreos.com/v1alpha1 kind: Subscription metadata: name: ptp-operator-subscription namespace: openshift-ptp annotations: {} spec: channel: "stable" name: ptp-operator source: redhat-operators-disconnected sourceNamespace: openshift-marketplace installPlanApproval: Manual status: state: AtLatestKnown
apiVersion: operators.coreos.com/v1alpha1 kind: Subscription metadata: name: cluster-logging namespace: openshift-logging annotations: {} spec: channel: "stable" name: cluster-logging source: redhat-operators-disconnected sourceNamespace: openshift-marketplace installPlanApproval: Manual status: state: AtLatestKnown
apiVersion: logging.openshift.io/v1 kind: ClusterLogging metadata: name: instance namespace: openshift-logging annotations: {} spec: managementState: "Managed" collection: logs: type: "vector"
apiVersion: "logging.openshift.io/v1" kind: ClusterLogForwarder metadata: name: instance namespace: openshift-logging annotations: {} spec: outputs: USDoutputs pipelines: USDpipelines
apiVersion: performance.openshift.io/v2 kind: PerformanceProfile metadata: # if you change this name make sure the 'include' line in TunedPerformancePatch.yaml # matches this name: include=openshift-node-performance-USD{PerformanceProfile.metadata.name} # Also in file 'validatorCRs/informDuValidator.yaml': # name: 50-performance-USD{PerformanceProfile.metadata.name} name: openshift-node-performance-profile annotations: ran.openshift.io/reference-configuration: "ran-du.redhat.com" spec: additionalKernelArgs: - "rcupdate.rcu_normal_after_boot=0" - "efi=runtime" - "vfio_pci.enable_sriov=1" - "vfio_pci.disable_idle_d3=1" - "module_blacklist=irdma" cpu: isolated: USDisolated reserved: USDreserved hugepages: defaultHugepagesSize: USDdefaultHugepagesSize pages: - size: USDsize count: USDcount node: USDnode machineConfigPoolSelector: pools.operator.machineconfiguration.openshift.io/USDmcp: "" nodeSelector: node-role.kubernetes.io/USDmcp: '' numa: topologyPolicy: "restricted" # To use the standard (non-realtime) kernel, set enabled to false realTimeKernel: enabled: true workloadHints: # WorkloadHints defines the set of upper level flags for different type of workloads. # See https://github.com/openshift/cluster-node-tuning-operator/blob/master/docs/performanceprofile/performance_profile.md#workloadhints # for detailed descriptions of each item. # The configuration below is set for a low latency, performance mode. realTime: true highPowerConsumption: false perPodPowerManagement: false
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 99-sync-time-once-master spec: config: ignition: version: 3.2.0 systemd: units: - contents: | [Unit] Description=Sync time once After=network.service [Service] Type=oneshot TimeoutStartSec=300 ExecCondition=/bin/bash -c 'systemctl is-enabled chronyd.service --quiet && exit 1 || exit 0' ExecStart=/usr/sbin/chronyd -n -f /etc/chrony.conf -q RemainAfterExit=yes [Install] WantedBy=multi-user.target enabled: true name: sync-time-once.service
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: worker name: 99-sync-time-once-worker spec: config: ignition: version: 3.2.0 systemd: units: - contents: | [Unit] Description=Sync time once After=network.service [Service] Type=oneshot TimeoutStartSec=300 ExecCondition=/bin/bash -c 'systemctl is-enabled chronyd.service --quiet && exit 1 || exit 0' ExecStart=/usr/sbin/chronyd -n -f /etc/chrony.conf -q RemainAfterExit=yes [Install] WantedBy=multi-user.target enabled: true name: sync-time-once.service
apiVersion: ptp.openshift.io/v1 kind: PtpConfig metadata: name: ordinary namespace: openshift-ptp annotations: {} spec: profile: - name: "ordinary" # The interface name is hardware-specific interface: USDinterface ptp4lOpts: "-2 -s" phc2sysOpts: "-a -r -n 24" ptpSchedulingPolicy: SCHED_FIFO ptpSchedulingPriority: 10 ptpSettings: logReduce: "true" ptp4lConf: | [global] # # Default Data Set # twoStepFlag 1 slaveOnly 1 priority1 128 priority2 128 domainNumber 24 #utc_offset 37 clockClass 255 clockAccuracy 0xFE offsetScaledLogVariance 0xFFFF free_running 0 freq_est_interval 1 dscp_event 0 dscp_general 0 dataset_comparison G.8275.x G.8275.defaultDS.localPriority 128 # # Port Data Set # logAnnounceInterval -3 logSyncInterval -4 logMinDelayReqInterval -4 logMinPdelayReqInterval -4 announceReceiptTimeout 3 syncReceiptTimeout 0 delayAsymmetry 0 fault_reset_interval -4 neighborPropDelayThresh 20000000 masterOnly 0 G.8275.portDS.localPriority 128 # # Run time options # assume_two_step 0 logging_level 6 path_trace_enabled 0 follow_up_info 0 hybrid_e2e 0 inhibit_multicast_service 0 net_sync_monitor 0 tc_spanning_tree 0 tx_timestamp_timeout 50 unicast_listen 0 unicast_master_table 0 unicast_req_duration 3600 use_syslog 1 verbose 0 summary_interval 0 kernel_leap 1 check_fup_sync 0 clock_class_threshold 7 # # Servo Options # pi_proportional_const 0.0 pi_integral_const 0.0 pi_proportional_scale 0.0 pi_proportional_exponent -0.3 pi_proportional_norm_max 0.7 pi_integral_scale 0.0 pi_integral_exponent 0.4 pi_integral_norm_max 0.3 step_threshold 2.0 first_step_threshold 0.00002 max_frequency 900000000 clock_servo pi sanity_freq_limit 200000000 ntpshm_segment 0 # # Transport options # transportSpecific 0x0 ptp_dst_mac 01:1B:19:00:00:00 p2p_dst_mac 01:80:C2:00:00:0E udp_ttl 1 udp6_scope 0x0E uds_address /var/run/ptp4l # # Default interface options # clock_type OC network_transport L2 delay_mechanism E2E time_stamping hardware tsproc_mode filter delay_filter moving_median delay_filter_length 10 egressLatency 0 ingressLatency 0 boundary_clock_jbod 0 # # Clock description # productDescription ;; revisionData ;; manufacturerIdentity 00:00:00 userDescription ; timeSource 0xA0 recommend: - profile: "ordinary" priority: 4 match: - nodeLabel: "node-role.kubernetes.io/USDmcp"
apiVersion: ptp.openshift.io/v1 kind: PtpConfig metadata: name: boundary namespace: openshift-ptp annotations: {} spec: profile: - name: "boundary" ptp4lOpts: "-2" phc2sysOpts: "-a -r -n 24" ptpSchedulingPolicy: SCHED_FIFO ptpSchedulingPriority: 10 ptpSettings: logReduce: "true" ptp4lConf: | # The interface name is hardware-specific [USDiface_slave] masterOnly 0 [USDiface_master_1] masterOnly 1 [USDiface_master_2] masterOnly 1 [USDiface_master_3] masterOnly 1 [global] # # Default Data Set # twoStepFlag 1 slaveOnly 0 priority1 128 priority2 128 domainNumber 24 #utc_offset 37 clockClass 248 clockAccuracy 0xFE offsetScaledLogVariance 0xFFFF free_running 0 freq_est_interval 1 dscp_event 0 dscp_general 0 dataset_comparison G.8275.x G.8275.defaultDS.localPriority 128 # # Port Data Set # logAnnounceInterval -3 logSyncInterval -4 logMinDelayReqInterval -4 logMinPdelayReqInterval -4 announceReceiptTimeout 3 syncReceiptTimeout 0 delayAsymmetry 0 fault_reset_interval -4 neighborPropDelayThresh 20000000 masterOnly 0 G.8275.portDS.localPriority 128 # # Run time options # assume_two_step 0 logging_level 6 path_trace_enabled 0 follow_up_info 0 hybrid_e2e 0 inhibit_multicast_service 0 net_sync_monitor 0 tc_spanning_tree 0 tx_timestamp_timeout 50 unicast_listen 0 unicast_master_table 0 unicast_req_duration 3600 use_syslog 1 verbose 0 summary_interval 0 kernel_leap 1 check_fup_sync 0 clock_class_threshold 135 # # Servo Options # pi_proportional_const 0.0 pi_integral_const 0.0 pi_proportional_scale 0.0 pi_proportional_exponent -0.3 pi_proportional_norm_max 0.7 pi_integral_scale 0.0 pi_integral_exponent 0.4 pi_integral_norm_max 0.3 step_threshold 2.0 first_step_threshold 0.00002 max_frequency 900000000 clock_servo pi sanity_freq_limit 200000000 ntpshm_segment 0 # # Transport options # transportSpecific 0x0 ptp_dst_mac 01:1B:19:00:00:00 p2p_dst_mac 01:80:C2:00:00:0E udp_ttl 1 udp6_scope 0x0E uds_address /var/run/ptp4l # # Default interface options # clock_type BC network_transport L2 delay_mechanism E2E time_stamping hardware tsproc_mode filter delay_filter moving_median delay_filter_length 10 egressLatency 0 ingressLatency 0 boundary_clock_jbod 0 # # Clock description # productDescription ;; revisionData ;; manufacturerIdentity 00:00:00 userDescription ; timeSource 0xA0 recommend: - profile: "boundary" priority: 4 match: - nodeLabel: "node-role.kubernetes.io/USDmcp"
The grandmaster profile is provided for testing only It is not installed on production clusters apiVersion: ptp.openshift.io/v1 kind: PtpConfig metadata: name: grandmaster namespace: openshift-ptp annotations: {} spec: profile: - name: "grandmaster" ptp4lOpts: "-2 --summary_interval -4" phc2sysOpts: -r -u 0 -m -O -37 -N 8 -R 16 -s USDiface_master -n 24 ptpSchedulingPolicy: SCHED_FIFO ptpSchedulingPriority: 10 ptpSettings: logReduce: "true" plugins: e810: enableDefaultConfig: false settings: LocalMaxHoldoverOffSet: 1500 LocalHoldoverTimeout: 14400 MaxInSpecOffset: 100 pins: USDe810_pins # "USDiface_master": # "U.FL2": "0 2" # "U.FL1": "0 1" # "SMA2": "0 2" # "SMA1": "0 1" ublxCmds: - args: #ubxtool -P 29.20 -z CFG-HW-ANT_CFG_VOLTCTRL,1 - "-P" - "29.20" - "-z" - "CFG-HW-ANT_CFG_VOLTCTRL,1" reportOutput: false - args: #ubxtool -P 29.20 -e GPS - "-P" - "29.20" - "-e" - "GPS" reportOutput: false - args: #ubxtool -P 29.20 -d Galileo - "-P" - "29.20" - "-d" - "Galileo" reportOutput: false - args: #ubxtool -P 29.20 -d GLONASS - "-P" - "29.20" - "-d" - "GLONASS" reportOutput: false - args: #ubxtool -P 29.20 -d BeiDou - "-P" - "29.20" - "-d" - "BeiDou" reportOutput: false - args: #ubxtool -P 29.20 -d SBAS - "-P" - "29.20" - "-d" - "SBAS" reportOutput: false - args: #ubxtool -P 29.20 -t -w 5 -v 1 -e SURVEYIN,600,50000 - "-P" - "29.20" - "-t" - "-w" - "5" - "-v" - "1" - "-e" - "SURVEYIN,600,50000" reportOutput: true - args: #ubxtool -P 29.20 -p MON-HW - "-P" - "29.20" - "-p" - "MON-HW" reportOutput: true - args: #ubxtool -P 29.20 -p CFG-MSG,1,38,300 - "-P" - "29.20" - "-p" - "CFG-MSG,1,38,300" reportOutput: true ts2phcOpts: " " ts2phcConf: | [nmea] ts2phc.master 1 [global] use_syslog 0 verbose 1 logging_level 7 ts2phc.pulsewidth 100000000 #cat /dev/GNSS to find available serial port #example value of gnss_serialport is /dev/ttyGNSS_1700_0 ts2phc.nmea_serialport USDgnss_serialport leapfile /usr/share/zoneinfo/leap-seconds.list [USDiface_master] ts2phc.extts_polarity rising ts2phc.extts_correction 0 ptp4lConf: | [USDiface_master] masterOnly 1 [USDiface_master_1] masterOnly 1 [USDiface_master_2] masterOnly 1 [USDiface_master_3] masterOnly 1 [global] # # Default Data Set # twoStepFlag 1 priority1 128 priority2 128 domainNumber 24 #utc_offset 37 clockClass 6 clockAccuracy 0x27 offsetScaledLogVariance 0xFFFF free_running 0 freq_est_interval 1 dscp_event 0 dscp_general 0 dataset_comparison G.8275.x G.8275.defaultDS.localPriority 128 # # Port Data Set # logAnnounceInterval -3 logSyncInterval -4 logMinDelayReqInterval -4 logMinPdelayReqInterval 0 announceReceiptTimeout 3 syncReceiptTimeout 0 delayAsymmetry 0 fault_reset_interval -4 neighborPropDelayThresh 20000000 masterOnly 0 G.8275.portDS.localPriority 128 # # Run time options # assume_two_step 0 logging_level 6 path_trace_enabled 0 follow_up_info 0 hybrid_e2e 0 inhibit_multicast_service 0 net_sync_monitor 0 tc_spanning_tree 0 tx_timestamp_timeout 50 unicast_listen 0 unicast_master_table 0 unicast_req_duration 3600 use_syslog 1 verbose 0 summary_interval -4 kernel_leap 1 check_fup_sync 0 clock_class_threshold 7 # # Servo Options # pi_proportional_const 0.0 pi_integral_const 0.0 pi_proportional_scale 0.0 pi_proportional_exponent -0.3 pi_proportional_norm_max 0.7 pi_integral_scale 0.0 pi_integral_exponent 0.4 pi_integral_norm_max 0.3 step_threshold 2.0 first_step_threshold 0.00002 clock_servo pi sanity_freq_limit 200000000 ntpshm_segment 0 # # Transport options # transportSpecific 0x0 ptp_dst_mac 01:1B:19:00:00:00 p2p_dst_mac 01:80:C2:00:00:0E udp_ttl 1 udp6_scope 0x0E uds_address /var/run/ptp4l # # Default interface options # clock_type BC network_transport L2 delay_mechanism E2E time_stamping hardware tsproc_mode filter delay_filter moving_median delay_filter_length 10 egressLatency 0 ingressLatency 0 boundary_clock_jbod 0 # # Clock description # productDescription ;; revisionData ;; manufacturerIdentity 00:00:00 userDescription ; timeSource 0x20 recommend: - profile: "grandmaster" priority: 4 match: - nodeLabel: "node-role.kubernetes.io/USDmcp"
apiVersion: ptp.openshift.io/v1 kind: PtpOperatorConfig metadata: name: default namespace: openshift-ptp annotations: {} spec: daemonNodeSelector: node-role.kubernetes.io/USDmcp: "" ptpEventConfig: enableEventPublisher: true transportHost: "http://ptp-event-publisher-service-NODE_NAME.openshift-ptp.svc.cluster.local:9043"
apiVersion: tuned.openshift.io/v1 kind: Tuned metadata: name: performance-patch namespace: openshift-cluster-node-tuning-operator annotations: {} spec: profile: - name: performance-patch # Please note: # - The 'include' line must match the associated PerformanceProfile name, following below pattern # include=openshift-node-performance-USD{PerformanceProfile.metadata.name} # - When using the standard (non-realtime) kernel, remove the kernel.timer_migration override from # the [sysctl] section and remove the entire section if it is empty. data: | [main] summary=Configuration changes profile inherited from performance created tuned include=openshift-node-performance-openshift-node-performance-profile [sysctl] kernel.timer_migration=1 [scheduler] group.ice-ptp=0:f:10:*:ice-ptp.* group.ice-gnss=0:f:10:*:ice-gnss.* [service] service.stalld=start,enable service.chronyd=stop,disable recommend: - machineConfigLabels: machineconfiguration.openshift.io/role: "USDmcp" priority: 19 profile: performance-patch
apiVersion: sriovnetwork.openshift.io/v1 kind: SriovOperatorConfig metadata: name: default namespace: openshift-sriov-network-operator annotations: {} spec: configDaemonNodeSelector: "node-role.kubernetes.io/USDmcp": "" # Injector and OperatorWebhook pods can be disabled (set to "false") below # to reduce the number of management pods. It is recommended to start with the # webhook and injector pods enabled, and only disable them after verifying the # correctness of user manifests. # If the injector is disabled, containers using sr-iov resources must explicitly assign # them in the "requests"/"limits" section of the container spec, for example: # containers: # - name: my-sriov-workload-container # resources: # limits: # openshift.io/<resource_name>: "1" # requests: # openshift.io/<resource_name>: "1" enableInjector: true enableOperatorWebhook: true logLevel: 0
containers: - name: my-sriov-workload-container resources: limits: openshift.io/<resource_name>: "1" requests: openshift.io/<resource_name>: "1"
apiVersion: sriovnetwork.openshift.io/v1 kind: SriovNetwork metadata: name: "" namespace: openshift-sriov-network-operator annotations: {} spec: # resourceName: "" networkNamespace: openshift-sriov-network-operator vlan: "" spoofChk: "" ipam: "" linkState: "" maxTxRate: "" minTxRate: "" vlanQoS: "" trust: "" capabilities: ""
apiVersion: sriovnetwork.openshift.io/v1 kind: SriovNetworkNodePolicy metadata: name: USDname namespace: openshift-sriov-network-operator annotations: {} spec: # The attributes for Mellanox/Intel based NICs as below. # deviceType: netdevice/vfio-pci # isRdma: true/false deviceType: USDdeviceType isRdma: USDisRdma nicSelector: # The exact physical function name must match the hardware used pfNames: [USDpfNames] nodeSelector: node-role.kubernetes.io/USDmcp: "" numVfs: USDnumVfs priority: USDpriority resourceName: USDresourceName
apiVersion: machineconfiguration.openshift.io/v1 kind: MachineConfig metadata: labels: machineconfiguration.openshift.io/role: master name: 07-sriov-related-kernel-args-master spec: config: ignition: version: 3.2.0 kernelArguments: - intel_iommu=on - iommu=pt
installConfigOverrides: "{\"capabilities\":{\"baselineCapabilitySet\": \"None\" }}"
apiVersion: v1 kind: ConfigMap metadata: name: cluster-monitoring-config namespace: openshift-monitoring annotations: {} data: config.yaml: | alertmanagerMain: enabled: false telemeterClient: enabled: false prometheusK8s: retention: 24h
apiVersion: v1 kind: ConfigMap metadata: name: collect-profiles-config namespace: openshift-operator-lifecycle-manager data: pprof-config.yaml: | disabled: True
apiVersion: lvm.topolvm.io/v1alpha1 kind: LVMCluster metadata: name: odf-lvmcluster namespace: openshift-storage spec: storage: deviceClasses: - name: vg1 deviceSelector: paths: - /usr/disk/by-path/pci-0000:11:00.0-nvme-1 thinPoolConfig: name: thin-pool-1 overprovisionRatio: 10 sizePercent: 90
apiVersion: operator.openshift.io/v1 kind: Network metadata: name: cluster annotations: {} spec: disableNetworkDiagnostics: true