Kubectx, Kubens for Windows (Powershell)

README.md

Kubectx and Kubens

NOTE: THIS TOOL IS NOW OBSOLETE AS KUBECTX AND KUBENS ARE NOW WRITTEN IN GO

SEE THE OFFICIAL REPO FOR MORE INFO

This is a fork of KubensWin (https://github.com/thomasliddledba/kubenswin) and KubectxWin (https://github.com/thomasliddledba/kubectxwin) The only major tweak is that it drops the "win" suffix

Installation

Simply Download the following files and then add them to a folder that's been added to your Path Environment Variable.

Note: These scripts only work in Powershell

kubectx.ps1

Param(
    [Parameter(Mandatory=$false)]
    [string]$action,
    [Parameter(Mandatory=$false)]
    [string]$name,
    [Parameter(Mandatory=$false)]
    [string]$newname
    )

function usage() {
  Write-Output "
      Usage 
        kubectx                        : current context
        kubectx ls                     : list the contexts
        kubectx set <name>             : switch to context <name>
        kubectx rn <oldname> <newname> : rename context <oldname> <newname>
        kubectx rm <name>              : delete context <name>
        kubectx help                   : display usage"
}

function current_context() {
    kubectl config view -o=jsonpath='{.current-context}'
}

function delete_context() {
    kubectl config delete-context $name
}

function rename_context() {
    kubectl config rename-context $name $newname
}

function get_contexts() {
    kubectl config get-contexts -o=name | Sort-Object
  }

function list_contexts() {
    $gctx = (get_contexts)
    $cur = (current_context)

    ForEach ($i in $gctx) {
        if ($i -eq $cur) {
            Write-Host "*" $i -ForegroundColor Red
        } else {
            Write-Host $i
        }
    }
}

function switch_context($context) {
    kubectl config use-context $context
}

function main() {
    switch ($action) {
        set { switch_context $name }
        Default { current_context }
        ls { list_contexts }
        rn { rename_context }
        rm { delete_context }
        help { usage }
    }
}

main

kubens.ps1

   
Param(
    [Parameter(Mandatory=$false)]
    [string]$action,
    [Parameter(Mandatory=$false)]
    [string]$name
    )

function usage() {
    Write-Output "
        Usage 
          kubens                        : current namespace
          kubens ls                     : list the namespaces in the current context
          kubens set <name>             : switch to another namespace in the current context
          kubens help                   : display usage"
  }

function current_context() {
    kubectl config view -o=jsonpath='{.current-context}'
}

function print_current_namespace() {
    $cur = (current_context)
    $nsp = kubectl config view -o=jsonpath="{.contexts[?(@.name=='$cur')].context.namespace}"

    if (!$nsp) {
        Write-Host 'default'
    }else{
        Write-Host $nsp
    }

}

function set_namespace() {
    $cur = (current_context)
    kubectl config set-context $cur --namespace=$name
    Write-Host "Active namespace is $name in context $cur"
}

function current_namespace() {
    $cur = (current_context)
    $nsp = kubectl config view -o=jsonpath="{.contexts[?(@.name=='$cur')].context.namespace}"

    if (!$nsp) {
        return 'default'
    }else{
        return $nsp
    }
}

function list_namespaces() {
    $cur = (current_namespace)
    $gnsp = (get_namespaces)

    ForEach ($i in $gnsp) {
        if ($i -eq $cur) {
            Write-Host "*" $i -ForegroundColor Red
        } else {
            Write-Host $i
        }
        }
    }

function get_namespaces() {
    kubectl get namespaces -o=jsonpath='{range .items[*].metadata.name}{@}{''\n''}{end}'
}

function main() {
    switch ($action) {
        Default {print_current_namespace}
        ls {list_namespaces}
        set {set_namespace}
        help {usage}
    }
}

main