Feature Request: integrate kube-ps1 as OMB plugin

[rafacouto]

Description

I recently installed oh-my-bash and it's working great, but I'm unable to get kube-ps1 integration working properly. kube-ps1 is a very popular and useful plugin for Kubernetes users that displays the current Kubernetes context and namespace in the bash prompt.

Current Situation

• kube-ps1 is not included as an oh-my-bash
• Manual installation requires cloning the repository and custom configuration
• The integration with oh-my-bash's theme system is not straightforward
• Other popular shell frameworks like oh-my-zsh already include kube-ps1 as a plugin.

Proposed Solution

Add kube-ps1 as an plugin in oh-my-bash with:

• Proper plugin initialization
• Theme integration support
• Standardized configuration options
• Documentation

Why this is valuable

• Kubernetes is widely used in development and DevOps
• kube-ps1 has over 2.8k stars on GitHub indicating high demand
• Would provide a consistent experience for Kubernetes users
• Aligns with oh-my-bash's goal of providing useful plugins

Technical considerations

The plugin should:

• Follow existing plugin structure
• Integrate with the prompt system
• Respect existing oh-my-bash configuration
• Provide toggle enable/disable functionality

[akinomyoga]

Contributions are welcome. One may consider porting the corresponding Oh-My-Zsh plugin.

I should note one thing: the original kube-ps1 seems to be licensed under Apache 2.0 License, which is incompatible with the MIT license that Oh My Bash uses, so a special care is needed if any codes from the upstream kube-ps1 would be imported into Oh My Bash.

[rafacouto]

Thanks @akinomyoga . Good catch on the licenses. Actually, Apache 2.0 and MIT are compatible when incorporating Apache 2.0 code into an MIT project. MIT's permissiveness allows this, and the ASF even lists MIT as an "Apache-compatible" license.

To do this properly, we'd need to:

• Retain all original copyright notices from kube-ps1
• Include a copy of the Apache 2.0 license alongside MIT
• Note any modifications made

So while we must handle this carefully with proper attribution, there's no fundamental incompatibility.

[rafacouto]

Testers required! (to show that this plugin is worth to be included in Oh My Bash)

1. Download the code with the plugin and copy just the plugin to your OMB plugins directory:

cd /tmp
wget 'https://github.com/rafacouto/fork-oh-my-bash/archive/refs/heads/pr719.zip'
unzip pr719.zip
cp -vr fork-oh-my-bash-pr719/plugins/kube-ps1 ~/.oh-my-bash/custom/plugins/

2. Activate the plugin by editing your ~/.bashrc configuration and add kube-ps1 to the plugins array:

3. Reload OMB configuration and test kube on and kube off commands:

source ~/.bashrc
kubeon

4. Add +1 or comment on the PR (important! it shows that it was tested in order to be included in OMB)