kubectl-label

adds or updates labels on Kubernetes resources

TLDR

Add label to resource

$ kubectl label [pod/name] [key]=[value]

Remove label

$ kubectl label [pod/name] [key]-

Overwrite existing label

$ kubectl label --overwrite [pod/name] [key]=[newvalue]

Label all pods with selector

$ kubectl label pods -l [app=myapp] [env]=[production]

SYNOPSIS

kubectl label type/name key=value [options]

kubectl label adds, updates, or removes labels on Kubernetes resources such as pods, nodes, services, and deployments. Labels are key-value metadata pairs that serve as the primary mechanism for organizing, grouping, and selecting resources throughout the Kubernetes ecosystem. They are used extensively by selectors in services, deployments, and network policies to determine which resources to target.To add a label, specify a key=value pair; to remove one, append a minus sign to the key name (e.g., `key-`). By default, overwriting an existing label requires the --overwrite flag to prevent accidental changes. The command can operate on individual resources, on all resources of a given type with --all, or on a filtered set matched by a label selector.

PARAMETERS

--overwrite

Allow overwriting existing labels.

--all

Select all resources of type.

-l, --selector selector

Label selector for filtering.

-n, --namespace name

Kubernetes namespace.

INSTALL

sudo apt install kubectl

sudo pacman -S kubectl

sudo apk add kubectl

brew install kubectl

nix profile install nixpkgs#kubectl