Powerline Kubernetes

A Powerline segment to show the current Kubernetes context.

This segment shows the Kubernetes context together with a nice looking helm. Please feel free to propose more features and give me ideas on how to improve it.

This is a "rewrite" of powerline-kubernetes, which uses the python kubernetes package. The package is relativly slow getting the context from huge kubeconfig files. By default this package uses the kubectl commandline tool to determine the current context and namespace. This can be configured to use any custom command to determine the context and namespace.

Requirements

The Kubernetes segment requires kubectl to be available in the $PATH, if used in the default configuration.

Installation

Installing the Kubernetes segment can be done with pip:

$ git clone https://github.com/dellacf/powerline-k8s.git
$ pip install ./powerline-k8s

The Kubernetes segment uses a couple of custom highlight groups. You'll need to define those groups in your colorscheme, for example in ~/.config/powerline/colorschemes/default.json:

{
  "groups": {
    "kubernetes_cluster":         { "fg": "gray10", "bg": "darkestblue", "attrs": [] },
    "kubernetes_cluster:alert":   { "fg": "gray10", "bg": "darkestred",  "attrs": [] },
    "kubernetes_namespace":       { "fg": "gray10", "bg": "darkestblue", "attrs": [] },
    "kubernetes_namespace:alert": { "fg": "gray10", "bg": "darkred",     "attrs": [] },
    "kubernetes:divider":         { "fg": "darkblue",  "bg": "darkestblue", "attrs": [] },
    "kubernetes:divider:alert":   { "fg": "darkred",  "bg": "darkestred", "attrs": [] }
  }
}

Then you can activate the Kubernetes segment by adding it to your segment configuration, for example in ~/.config/powerline/themes/shell/default.json:

{
  "segments": {
    "left": [
      {
        "function": "powerline-k8s.kubernetes",
        "priority": 10,
        "draw_inner_divider": true,
        "after": " ",
        "args": {
          "show_kube_logo": true,
          "show_cluster": true,
          "show_namespace": true,
          "show_default_namespace": false,
          "context_cmd": "kubectl config current-context,
          "namespace_cmd": "kubectl config view --minify --output 'jsonpath={..namespace}'",
          "context_alert_regex": "^$",
          "namespace_alert_regex": "^$"
        }
      }
    ]
  }
}

## License

Licensed under the MIT License.

Authors

Created by so0k. Code contributions by bokysan. Rewritten by dellacf.