nano-whale 0.1.19

A lightweight Terminal User Interface (TUI) for managing Docker containers, images, and volumes via WSL2

🐳 Nano Whale - Lightweight Docker TUI

⚠️ DEPRECATION NOTICE: The original Tkinter GUI version of Nano Whale has been deprecated. This repository now contains the new and improved Terminal User Interface (TUI) version built with Textual. For the legacy version, see the legacy-tkinter branch.

Meet Nano Whale TUI! A blazingly fast, lightweight Terminal User Interface for managing Docker containers, images, and volumes. Built with Textual, Nano Whale provides an elegant, keyboard-driven interface for Docker management without the overhead of Docker Desktop.

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✨ Features

• Blazingly Fast & Lightweight: Minimal resource footprint, native WSL2 integration.
• Efficient Management: Keyboard-driven TUI for containers, images, and volumes.
• Detailed Inspection: Quickly view container info, environment, ports, volumes, and networks.
• Batch Operations: Multi-select for streamlined management (start, stop, delete).
• Cross-Platform: Works seamlessly on Windows (WSL), Linux, and macOS.

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🖼️ Screenshots

Main Interface

Multi-Select Mode

Commands Panel

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📦 Installation

Via pip (Recommended)

pip install nano-whale

Via pipx (Isolated)

pipx install nano-whale

From GitHub Releases

Via Windows Executable

For Windows users who prefer a standalone executable without Python or pip installation, you can download the latest release directly from GitHub or follow the below PowerShell script for shell command.

# 1. Download the executable
Invoke-WebRequest -Uri "https://github.com/Vriddhachalam/nano-whale/releases/latest/download/nano-whale-windows-latest-manual.exe" -OutFile "nano-whale-windows-latest-manual.exe"

# 2. Move to C:\Tools and rename
New-Item -Path "C:\Tools" -ItemType Directory -Force
Move-Item .\nano-whale-windows-latest-manual.exe C:\Tools\nano-whale.exe

# 3. Add C:\Tools to PATH
[System.Environment]::SetEnvironmentVariable("Path", $env:Path + ";C:\Tools", [System.EnvironmentVariableTarget]::Machine)

# 4. Test installation (requires terminal restart if PATH was updated)
nano-whale

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Via Linux Executable

For Linux users who prefer a standalone executable, download the latest release from GitHub using this bash script:

# 1. Download the executable
curl -L -o nano-whale-ubuntu-latest https://github.com/Vriddhachalam/nano-whale/releases/latest/download/nano-whale-ubuntu-latest

# 2. Make it executable
chmod +x nano-whale-ubuntu-latest

# 3. Move to /usr/local/bin with a clean name
sudo mv nano-whale-ubuntu-latest /usr/local/bin/nano-whale

# 4. Test installation
nano-whale

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🚀 Usage

Simply run:

nano-whale

Or run directly:

python nano_whale/main.py

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⌨️ Keyboard Shortcuts

Table Navigation

Key	Action
C	Switch to Containers table
I	Switch to Images table
V	Switch to Volumes table
↑/↓	Navigate rows
Page Up/Down	Fast scroll
Home/End	Jump to first/last row
Mouse Click	Click anywhere on table section to switch

Detail Panel Tabs

Key	Action
1	Info tab - Container details
2	Env tab - Environment variables
3	Ports tab - Port mappings
4	Volumes tab - Volume mounts
5	Networks tab - Network configuration

Container Operations

Key	Action
S	Start container(s)
X	Stop container(s)
R	Restart container(s)
D	Delete selected item(s)

Logs & Terminal

Key	Action
L	View Logs in-shell (suspends TUI)
Ctrl+L	View Logs in new terminal window
T	Launch Terminal in-shell (exec)
Ctrl+T	Launch Terminal in new window

Multi-Select & Batch Operations

Key	Action
M	Mark/Unmark current item
(then) S/X/R/D	Perform action on all marked items

Utilities

Key	Action
A	Refresh all tables
G	Toggle Stats display in container list
P	Prune menu (press twice to confirm)
Q	Quit application

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Viewing Logs / Exec into containers

In-Shell (suspends TUI, Useful for non GUI servers):

1. Select a running container
2. Press L or T Logs stream
3. Press Ctrl+C or Ctrl+D to return to TUI

In New Window (TUI remains active):

1. Select a running container
2. Press Ctrl+L or Ctrl+T

Cleaning Up System

1. Press P - shows warning notification
2. Press P again within 5 seconds to confirm
3. Executes docker system prune -a -f
4. Removes all unused containers, images, and volumes

💻 Dev Zone: Running from Source

Development Setup

# Clone the repository
git clone https://github.com/Vriddhachalam/nano-whale.git
cd nano-whale

# Create virtual environment
python -m venv .venv
.venv\Scripts\activate  # On Windows
# source .venv/bin/activate  # On Linux/macOS

# Install dependencies
pip install -r requirements.txt

# Install in development mode
pip install -e .

# Run from source
python nano_whale/main.py

📦 Building Portable Executable with Nuitka

Build Command:

python -m nuitka --standalone --onefile --output-filename=nano-whale nano_whale/main.py

Build Options Explained:

Option	Description
--standalone	Include all dependencies
--onefile	Package everything into a single executable
--windows-console-mode=force	Keep console window for TUI
--output-filename	Name of the output executable

The portable executable can be distributed and run on any compatible system without Python installation!

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🐛 Troubleshooting

"wsl command not found" (Windows)

wsl --install
# Restart computer after installation

"Cannot connect to Docker daemon"

Linux/macOS:

sudo systemctl start docker
# or
sudo service docker start

Windows WSL:

wsl sudo service docker start

"Permission denied"

sudo usermod -aG docker $USER
# Then log out and back in

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🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

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📜 License

This project is licensed under the MIT License - see the LICENSE file for details.

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📚 Migration from Legacy GUI Version

If you're upgrading from the old Tkinter GUI version:

1. No more .exe: The new TUI version runs directly with Python
2. Keyboard-driven: Learn the keyboard shortcuts for faster workflow
3. Better performance: Even lighter resource usage than before
4. SSH compatible: Now works over remote connections
5. New features: Split-pane interface, container inspection tabs, multi-select

The legacy Tkinter version can still be found in the legacy-tkinter branch, but it will no longer receive updates.

Legacy Version Screenshots (Deprecated)

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⭐ Star History

If you find Nano Whale useful, please consider giving it a star on GitHub!

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Made with ❤️ by Vriddhachalam S

Swim fast, stay light! 🐳