zsh-kubectl-prompt

This script displays information about the kubectl current context and namespace in zsh prompt.

Usage

Clone this repository and source the kubectl.zsh from your ~/.zshrc config file, and configure your prompt.

autoload -U colors; colors
source /path/to/zsh-kubectl-prompt/kubectl.zsh
RPROMPT='%{$fg[blue]%}($ZSH_KUBECTL_PROMPT)%{$reset_color%}'

Or create different style depending on user, context, namespace. The plugin creates 4 variables:

• ZSH_KUBECTL_CONTEXT
• ZSH_KUBECTL_NAMESPACE
• ZSH_KUBECTL_PROMPT
• ZSH_KUBECTL_USER

For example, make the prompt red when the username matches admin.

autoload -U colors; colors
source /path/to/zsh-kubectl-prompt/kubectl.zsh
function right_prompt() {
  local color="blue"

  if [[ "$ZSH_KUBECTL_USER" =~ "admin" ]]; then
    color=red
  fi

  echo "%{$fg[$color]%}($ZSH_KUBECTL_PROMPT)%{$reset_color%}"
}
RPROMPT='$(right_prompt)'

Also you can install with homebrew.

$ brew tap superbrothers/zsh-kubectl-prompt
$ brew install zsh-kubectl-prompt

Customization

Change the separator between context and namespace:

zstyle ':zsh-kubectl-prompt:' separator '|'

Add custom character before the prompt:

zstyle ':zsh-kubectl-prompt:' preprompt '<'

Add custom character after the prompt:

zstyle ':zsh-kubectl-prompt:' postprompt '>'

Does not display the current namespace:

zstyle ':zsh-kubectl-prompt:' namespace false

Use another binary instead of kubectl to get the information (e.g. oc):

zstyle ':zsh-kubectl-prompt:' binary 'oc'

With a plugin manager

If you use zgen, load this repository as follows:

source "${HOME}/.zgen/zgen.zsh"

# if the init script doesn't exist
if ! zgen saved; then
    # specify plugins here
    zgen load superbrothers/zsh-kubectl-prompt

    # generate the init script from plugins above
    zgen save
fi

autoload -U colors; colors
RPROMPT='%{$fg[blue]%}($ZSH_KUBECTL_PROMPT)%{$reset_color%}'

If you use antigen, load this repository as follows:

source /path-to-antigen/antigen.zsh

# load this plugin
antigen bundle superbrothers/zsh-kubectl-prompt

# tell antigen that you're done.
antigen apply

autoload -U colors; colors
RPROMPT='%{$fg[blue]%}($ZSH_KUBECTL_PROMPT)%{$reset_color%}'

If you use oh-my-zsh, load this repository as follows:

1. Clone the repo into oh-my-zsh custom plugins folder

git clone https://github.com/superbrothers/zsh-kubectl-prompt.git ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-kubectl-prompt

2. Activate the plugin your .zshrc by appending it to the plugin section

plugins=( [plugins...] zsh-kubectl-prompt)

3. Configure your prompt (or check how to customize the theme plugin you are using)

RPROMPT='%{$fg[blue]%}($ZSH_KUBECTL_PROMPT)%{$reset_color%}'

Note: Remember to source the .zshrc or restart your shell after step 2

License

This script is released under the MIT License.