A DaemonSet defines Pods that provide node-local facilities. These might be fundamental to the operation of your cluster, such as a networking helper tool, or be part of an add-on.

Field selectors let you select Kubernetes objects based on the value of one or more resource fields. Here are some examples of field selector queries: metadata.name=my-service metadata.namespace!=default status.phase=Pending This kubectl command selects all Pods for which the value of the status.phase field is Running: kubectl get pods --field-selector status.phase=Running Note: Field selectors are essentially resource filters. By default, no selectors/filters are applied, meaning that all resources of the specified type are selected.

This page explains how to add versioning information to CustomResourceDefinitions, to indicate the stability level of your CustomResourceDefinitions or advance your API to a new version with conversion between API representations. It also describes how to upgrade an object from one version to another. 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.

This page shows how to run a replicated stateful application using a StatefulSet. This application is a replicated MySQL database. The example topology has a single primary server and multiple replicas, using asynchronous row-based replication. Note: This is not a production configuration. MySQL settings remain on insecure defaults to keep the focus on general patterns for running stateful applications in Kubernetes. Before you begin You need to have a Kubernetes cluster, and the kubectl command-line tool must be configured to communicate with your cluster.

Debugging common cluster issues.

This page shows how to define environment variables for a container in a Kubernetes Pod. 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:

This task shows how to scale a StatefulSet. Scaling a StatefulSet refers to increasing or decreasing the number of replicas. Before you begin StatefulSets are only available in Kubernetes version 1.5 or later. To check your version of Kubernetes, run kubectl version. Not all stateful applications scale nicely. If you are unsure about whether to scale your StatefulSets, see StatefulSet concepts or StatefulSet tutorial for further information. You should perform scaling only when you are confident that your stateful application cluster is completely healthy.

Run Jobs using parallel processing.

Package v1beta1 is the v1beta1 version of the API. Resource Types AuthenticationConfiguration AuthorizationConfiguration EgressSelectorConfiguration TracingConfiguration TracingConfiguration Appears in: KubeletConfiguration TracingConfiguration TracingConfiguration TracingConfiguration provides versioned configuration for OpenTelemetry tracing clients. FieldDescription endpoint string Endpoint of the collector this component will report traces to. The connection is insecure, and does not currently support TLS. Recommended is unset, and endpoint is the otlp grpc default, localhost:4317. samplingRatePerMillion int32 SamplingRatePerMillion is the number of samples to collect per million spans.

Resource Types ExecCredential ExecCredential ExecCredential is used by exec-based plugins to communicate credentials to HTTP transports. FieldDescription apiVersionstringclient.authentication.k8s.io/v1beta1 kindstringExecCredential spec [Required] ExecCredentialSpec Spec holds information passed to the plugin by the transport. status ExecCredentialStatus Status is filled in by the plugin and holds the credentials that the transport should use to contact the API. Cluster Appears in: ExecCredentialSpec Cluster contains information to allow an exec plugin to communicate with the kubernetes cluster being authenticated to.