Red Hat Summit1.3.14. Nodes
- Allocating specific GPUs to pods (DRA) is now generally available
- Attribute-Based GPU Allocation, which allows pods to request GPUs based on specific device attributes by using a Dynamic Resource Allocation (DRA) driver, is now generally available. For more information, see Allocating GPUs to Pods.
- The default
openshiftcluster image policy is now generally available The default
openshiftcluster image policy is now generally available and active by default. For more information, see Manage secure signatures with sigstore.If your OpenShift Container Platform 4.20 or earlier cluster has a cluster image policy named
openshift, the upgrade to OpenShift Container Platform marks the cluster as not updatable (Upgradeable=False) because of this defaultopenshiftcluster image policy. You must remove youropenshiftcluster image policy to clear theUpgradeable=Falsecondition and proceed with the update. You can optionally create your own cluster image policy with a different name before removing youropenshiftcluster image policy.- Support for sigstore BYOPKI is now generally available
- Support for using a certificate from your own public key infrastructure as a Sigstore root of trust is now generally available. For more information, see Manage secure signatures with sigstore.
- Automatically calculate and apply CPU and memory resources for system components
-
OpenShift Container Platform now automatically calculates and reserves a portion of the CPU and memory resources for use by the underlying node and system components. Previously, you needed to enable the feature by creating a
KubeletConfigcustom resource (CR) with theautoSizingReserved: trueparameter. For clusters updated to OpenShift Container Platform 4.21, you can enable the feature by deleting the50-worker-auto-sizing-disabledmachine config. After you delete the machine config, the nodes reboot with the new resource settings. If you manually configured system reserved CPU or memory resources, these settings remain upon update and do not change. For more information on this new feature, see Automatically allocating resources for nodes. - Linux PSI monitoring can now be enabled
-
You can now enable Linux Pressure Stall Information (PSI) monitoring, which makes PSI metrics for CPU, memory, and I/O available for your cluster, by using a
MachineConfigobject. For more information, see Enabling Pressure Stall Information (PSI) monitoring.
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