Krayt - The Kubernetes Volume Inspector

Like cracking open a Krayt dragon pearl, this tool helps you inspect what's inside your Kubernetes volumes. Hunt down storage issues and explore your persistent data like a true Tatooine dragon hunter.

Features

• 🔍 Create inspector pods with all the tools you need
• 📦 Access volumes and device mounts from any pod
• 🔎 Fuzzy search across all namespaces
• 🛠️ Built-in tools for file exploration and analysis
• 🧹 Automatic cleanup of inspector pods

Installation

Quick Install (Linux)

# Install latest version
curl -sSL https://github.com/waylonwalker/krayt/releases/latest/download/install.sh | sudo bash

# Install specific version
curl -sSL https://github.com/waylonwalker/krayt/releases/download/v0.1.0/install.sh | sudo bash

This will install the krayt command to /usr/local/bin.

Manual Installation

1. Download the latest release for your platform from the releases page
2. Extract the archive: tar xzf krayt-*.tar.gz
3. Move the binary: sudo mv krayt-*/krayt /usr/local/bin/krayt
4. Make it executable: sudo chmod +x /usr/local/bin/krayt

Usage

# Create a new inspector and apply it directly
krayt create | kubectl apply -f -

# Use a custom image
krayt create --image custom-image:latest | kubectl apply -f -

# Use a private image with pull secret
krayt create --image private-registry.com/image:latest --imagepullsecret my-registry-secret | kubectl apply -f -

# Or review the manifest first
krayt create > inspector.yaml
kubectl apply -f inspector.yaml

# Connect to a running inspector
krayt exec

# Clean up inspectors
krayt clean

# Show version
krayt version

Available Tools

Your inspector pod comes equipped with a full arsenal of tools:

• File Navigation: lf, exa, fd
• Search & Analysis: ripgrep, bat, hexyl
• Disk Usage: ncdu, dust
• File Comparison: difftastic
• System Monitoring: bottom, htop
• JSON/YAML Tools: jq, yq
• Network Tools: mtr, dig
• Cloud & Database: aws-cli, sqlite3

Customization

Init Scripts

Krayt supports initialization scripts that run in the inspector pod before any packages are installed. These scripts are useful for:

• Setting up proxy configurations
• Installing additional tools
• Configuring custom package repositories
• Setting environment variables

Place your scripts in ~/.config/krayt/init.d/ with a .sh extension. Scripts are executed in alphabetical order, so you can control the execution sequence using numerical prefixes.

Example init scripts:

1. Install additional tools (~/.config/krayt/init.d/10_install_git.sh):

#!/bin/sh
echo "Installing additional tools..."

# Install git for source control
apk add git

# Configure git
git config --global init.defaultBranch main
git config --global core.editor vi

2. Set up custom repositories (~/.config/krayt/init.d/20_custom_repos.sh):

#!/bin/sh
echo "Adding custom package repositories..."

# Add testing repository for newer packages
echo "@testing http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories

# Update package list
apk update

Proxy Configuration

If your environment requires a proxy, you have two options:

1. Environment Variables (Recommended):

   # Add to your shell's rc file (e.g., ~/.bashrc, ~/.zshrc)
   export HTTP_PROXY="http://proxy.example.com:8080"
   export HTTPS_PROXY="http://proxy.example.com:8080"
   export NO_PROXY="localhost,127.0.0.1,.internal.example.com"
   

2. Init Script (~/.config/krayt/init.d/00_proxy.sh):

   #!/bin/sh
   echo "Configuring proxy settings..."
   
   # Set proxy for Alpine package manager
   mkdir -p /etc/apk
   cat > /etc/apk/repositories << EOF
   http://dl-cdn.alpinelinux.org/alpine/latest-stable/main
   http://dl-cdn.alpinelinux.org/alpine/latest-stable/community
   
   # Configure proxy
   proxy=http://proxy.example.com:8080
   EOF
   
   # Set proxy for other tools
   export HTTP_PROXY="http://proxy.example.com:8080"
   export HTTPS_PROXY="http://proxy.example.com:8080"
   export NO_PROXY="localhost,127.0.0.1,.internal.example.com"
   

The proxy configuration will be applied before any packages are installed, ensuring that all package installations and network operations work correctly through your proxy.

Quotes from the Field

"Inside every volume lies a pearl of wisdom waiting to be discovered."

-- Ancient Tatooine proverb

"The path to understanding your storage is through exploration."

-- Krayt dragon hunter's manual

May the Force be with your volumes!

Remember: A Krayt dragon's pearl is valuable not just for what it is, but for what it reveals about the dragon that created it. Similarly, your volumes tell a story about your application's data journey.