wnm 0.0.11

Manager for Autonomi nodes

Weave Node Manager

Overview

Weave Node Manager (wnm) is a Python application designed to manage Autonomi nodes on Linux and macOS systems.

Platforms:

• Linux: systemd or setsid for process management, UFW for firewall
• macOS: launchd for process management (native support)
• Python 3.12.3+ required

Features

• Automatic node lifecycle management (create, start, stop, upgrade, remove)
• Resource-based decision engine (CPU, memory, disk, I/O, load average thresholds)
• Platform-specific process management (systemd on Linux, launchd on macOS)
• Per-node binary copies for independent upgrades
• SQLite database for configuration and state tracking
• Support for configuration via environment variables, config files, or command-line parameters

Warning - Alpha Software

This code is Alpha. On Linux, it can migrate from an existing anm installation. On macOS, it provides native development and testing support using launchd.

Installation

macOS (Development & Testing)

macOS support uses launchd for process management and is ideal for development and testing.

1. Install antup (Autonomi binary manager)

curl -sSL https://raw.githubusercontent.com/maidsafe/antup/main/install.sh | bash

2. Download antnode binary

~/.local/bin/antup node

3. Install WNM from PyPI

pip3 install weave-node-manager

4. Or install from source

git clone https://github.com/dawn-code/weave-node-manager.git
cd weave-node-manager
pip3 install -e .

5. Initialize and configure

# Initialize with your rewards address
wnm --init --rewards_address 0xYourEthereumAddress

# Run in dry-run mode to test
wnm --dry_run

# Or run normally to start managing nodes
wnm

6. Optional: Add to cron for automatic management

# Add to crontab (runs every minute)
crontab -e

# Add this line:
*/1 * * * * /usr/local/bin/wnm >> ~/Library/Logs/autonomi/wnm-cron.log 2>&1

macOS Notes:

• Uses ~/Library/Application Support/autonomi/node/ for data
• Uses ~/Library/Logs/autonomi/ for logs
• Nodes managed via launchd (~/Library/LaunchAgents/)
• No root/sudo access required

Linux (User-Level, Recommended)

Non-root installation using setsid for process management.

1. Install antup (Autonomi binary manager)

curl -sSL https://raw.githubusercontent.com/maidsafe/antup/main/install.sh | bash

2. Download antnode binary

~/.local/bin/antup node

3. Install WNM from PyPI

pip3 install weave-node-manager

4. Or install from source

git clone https://github.com/dawn-code/weave-node-manager.git
cd weave-node-manager
pip3 install -e .

5. Initialize and configure

# Initialize with your rewards address
wnm --init --rewards_address 0xYourEthereumAddress

# Run in dry-run mode to test
wnm --dry_run

# Or run normally
wnm

6. Optional: Add to cron

crontab -e

# Add this line:
*/1 * * * * ~/.local/bin/wnm >> ~/.local/share/autonomi/logs/wnm-cron.log 2>&1

Linux User-Level Notes:

• Uses ~/.local/share/autonomi/node/ for data (XDG spec)
• Uses ~/.local/share/autonomi/logs/ for logs
• Nodes run as background processes (setsid)
• No root/sudo required

Linux (Root-Level, Production)

Root installation using systemd for process management.

1. Install system dependencies

sudo apt install -y python3.12-venv python3-pip

2. Install antup and antnode

curl -sSL https://raw.githubusercontent.com/maidsafe/antup/main/install.sh | bash
~/.local/bin/antup node
sudo cp ~/.local/bin/antnode /usr/local/bin/

3. Install WNM

sudo pip3 install weave-node-manager

4. Initialize as root

# Migrate from existing anm installation
sudo wnm --init --migrate_anm

# Or initialize fresh
sudo wnm --init --rewards_address 0xYourEthereumAddress

5. Add to cron

sudo crontab -e

# Add this line:
*/1 * * * * /usr/local/bin/wnm >> /var/log/antnode/wnm-cron.log 2>&1

Linux Root-Level Notes:

• Uses /var/antctl/ for data (legacy anm compatibility)
• Uses /var/log/antnode/ for logs
• Nodes managed via systemd (/etc/systemd/system/)
• Requires root/sudo access
• Supports migration from anm

Configuration

Configuration follows a multi-layer priority system (highest to lowest):

1. Command-line arguments: wnm --cpu_less_than 70 --node_cap 50
2. Environment variables: Set in .env file or shell
3. Config files:
   • macOS: ~/Library/Application Support/autonomi/config
   • Linux (user): ~/.local/share/autonomi/config
   • Linux (root): /var/antctl/config
4. Database-stored config: Persisted in colony.db after initialization
5. Default values: Built-in defaults

Key Configuration Parameters

Resource thresholds control when nodes are added or removed:

• --cpu_less_than / --cpu_remove: CPU percentage thresholds (default: 70% / 80%)
• --mem_less_than / --mem_remove: Memory percentage thresholds (default: 70% / 80%)
• --hd_less_than / --hd_remove: Disk usage percentage thresholds (default: 70% / 80%)
• --desired_load_average / --max_load_average_allowed: Load average thresholds
• --node_cap: Maximum number of nodes (default: 50)
• --rewards_address: Ethereum address for node rewards (required)
• --node_storage: Root directory for node data (auto-detected per platform)

anm Migration (Linux Only)

Upon finding an existing anm installation, wnm will:

1. Disable anm by removing /etc/cron.d/anm
2. Import configuration from /var/antctl/config
3. Discover and import existing nodes from systemd
4. Take over management of the cluster

Use wnm --init --migrate_anm to trigger migration.

Usage

Run Once

# macOS or Linux
wnm

# With dry-run (no actual changes)
wnm --dry_run

# Initialize first time
wnm --init --rewards_address 0xYourEthereumAddress

Run via Cron (Recommended)

WNM is designed to run every minute via cron, making one decision per cycle:

macOS:

crontab -e
# Add: */1 * * * * /usr/local/bin/wnm >> ~/Library/Logs/autonomi/wnm-cron.log 2>&1

Linux (user):

crontab -e
# Add: */1 * * * * ~/.local/bin/wnm >> ~/.local/share/autonomi/logs/wnm-cron.log 2>&1

Linux (root):

sudo crontab -e
# Add: */1 * * * * /usr/local/bin/wnm >> /var/log/antnode/wnm-cron.log 2>&1

Development Mode

For development with live code reloading:

macOS (native):

python3 -m wnm --dry_run

Linux (Docker):

./scripts/dev.sh
# Inside container:
python3 -m wnm --dry_run

See DOCKER-DEV.md for comprehensive Docker development workflow.

Platform Support

See PLATFORM-SUPPORT.md for detailed information about:

• Platform-specific process managers (systemd, launchd, setsid)
• Firewall management (UFW, null)
• Path conventions per platform
• Binary management and upgrades
• Testing strategies

Contributing

Contributions are welcome! Please submit a pull request or open an issue for any enhancements or bug fixes.

License

This project is licensed under the MIT License. See the LICENSE file for more details.