FogLedger

FogLedger is a plugin for Fogbed. It is a framework and toolset integration for the rapid prototyping of fog components in virtualized environments using a desktop approach for DLTs. Its design meets the postulated requirements of low cost, flexible setup, and compatibility with real-world technologies. The components are based on a Mininet network emulator with Docker container instances as fog virtual nodes.

Install

Before installing Fogbed it is necessary to install some dependencies and Containernet, as shown in the steps below:

1. Install Containernet

sudo apt-get install ansible

git clone https://github.com/containernet/containernet.git

sudo ansible-playbook -i "localhost," -c local containernet/ansible/install.yml

2. Install Fogbed

sudo pip install fogbed

3. Install FogLedger

sudo pip install -U git+https://github.com/larsid/FogLedger-Indy.git

Get Started

Preparing Blockchain Test

Run example indy

cd examples/indy

Run example iota

cd examples/iota

Run local network test

sudo python3 test-local-network.py

Run distributed network test

sudo python3 test-distributed-network.py

Example: A local network with four nodes

from typing import List
from fogbed import (setLogLevel, FogbedDistributedExperiment)
import time
import os

from fogledgerIndy.Node import Node
from fogledgerIndy.IndyBasic import IndyBasic
setLogLevel('info')


if (__name__ == '__main__'):

    exp = FogbedDistributedExperiment()
    worker1 = exp.add_worker('YOUR_HOST_IP or HOST_NAME')

    # Define Indy network in cloud
    indyCloud = IndyBasic(
        exp=exp, trustees_path='examples/tmp/trustees.csv',  config_nodes=[
            Node(name='ledger1'),
            Node(name='ledger2'),
            Node(name='ledger3'),
            Node(name='ledger4'),
        ])

    for ledger in indyCloud.ledgers:
        worker1.add(ledger)
        worker1.add_link(edge1, ledger)

    try:
        exp.start()
        indyCloud.start_network()
        input('Press any key...')
    except Exception as ex:
        print(ex)
    finally:
        exp.stop()