This page shows how to install a custom resource into the Kubernetes API by creating a CustomResourceDefinition. Before you begin You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. It is recommended to run this tutorial on a cluster with at least two nodes that are not acting as control plane hosts. If you do not already have a cluster, you can create one by using minikube or you can use one of these Kubernetes playgrounds:

For Kubernetes, the Metrics API offers a basic set of metrics to support automatic scaling and similar use cases. This API makes information available about resource usage for node and pod, including metrics for CPU and memory. If you deploy the Metrics API into your cluster, clients of the Kubernetes API can then query for this information, and you can use Kubernetes' access control mechanisms to manage permissions to do so.

This page demonstrates how to build a basic DaemonSet that runs a Pod on every node in a Kubernetes cluster. It covers a simple use case of mounting a file from the host, logging its contents using an init container, and utilizing a pause container. Before you begin You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster. It is recommended to run this tutorial on a cluster with at least two nodes that are not acting as control plane hosts.

Detailed explanation of Pressure Stall Information (PSI) metrics and how to use them to identify resource pressure in Kubernetes.

This command prints the version of kubeadm. Synopsis Print the version of kubeadm kubeadm version [flags] Options -h, --help help for version -o, --output string Output format; available options are 'yaml', 'json' and 'short' Options inherited from parent commands --rootfs string The path to the 'real' host root filesystem. This will cause kubeadm to chroot into the provided path.

FEATURE STATE: Kubernetes v1.27 [beta] This is a community maintained list of official CVEs announced by the Kubernetes Security Response Committee. See Kubernetes Security and Disclosure Information for more details. The Kubernetes project publishes a programmatically accessible feed of published security issues in JSON feed and RSS feed formats. You can access it by executing the following commands: JSON feed RSS feed Link to JSON format curl -Lv https://k8s.io/docs/reference/issues-security/official-cve-feed/index.json Link to RSS format

If you configure a Service, you can select from any network protocol that Kubernetes supports. Kubernetes supports the following protocols with Services: SCTP TCP (the default) UDP When you define a Service, you can also specify the application protocol that it uses. This document details some special cases, all of them typically using TCP as a transport protocol: HTTP and HTTPS PROXY protocol TLS termination at the load balancer Supported protocols There are 3 valid values for the protocol of a port for a Service:

Resource Types KubeProxyConfiguration FormatOptions Appears in: LoggingConfiguration FormatOptions contains options for the different logging formats. FieldDescription text [Required] TextOptions [Alpha] Text contains options for logging format "text". Only available when the LoggingAlphaOptions feature gate is enabled. json [Required] JSONOptions [Alpha] JSON contains options for logging format "json". Only available when the LoggingAlphaOptions feature gate is enabled. JSONOptions Appears in: FormatOptions JSONOptions contains options for logging format "json". FieldDescription OutputRoutingOptions [Required] OutputRoutingOptions (Members of OutputRoutingOptions are embedded into this type.

Resource Types CredentialProviderConfig ImagePullIntent ImagePulledRecord CredentialProviderConfig CredentialProviderConfig is the configuration containing information about each exec credential provider. Kubelet reads this configuration from disk and enables each provider as specified by the CredentialProvider type. FieldDescription apiVersionstringkubelet.config.k8s.io/v1alpha1 kindstringCredentialProviderConfig providers [Required] []CredentialProvider providers is a list of credential provider plugins that will be enabled by the kubelet. Multiple providers may match against a single image, in which case credentials from all providers will be returned to the kubelet.

Package v1beta2 is the v1beta2 version of the custom_metrics API. Resource Types MetricListOptions MetricValue MetricValueList MetricListOptions MetricListOptions is used to select metrics by their label selectors FieldDescription apiVersionstringcustom.metrics.k8s.io/v1beta2 kindstringMetricListOptions labelSelector string A selector to restrict the list of returned objects by their labels. Defaults to everything. metricLabelSelector string A selector to restrict the list of returned metrics by their labels MetricValue Appears in: MetricValueList MetricValue is the metric value for some object