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docker-bitcoin-cluster-tutorial.md

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How to Setup Docker Bitcoin Cluster

Install Docker

OS Environment: Ubuntu 18.04

Guide: How To Install and Use Docker on Ubuntu 18.04 https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-18-04

sudo apt update

sudo apt install apt-transport-https ca-certificates curl software-properties-common

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu bionic stable"

sudo apt update

apt-cache policy docker-ce

sudo apt install docker-ce

// Executing the Docker Command Without Sudo
sudo usermod -aG docker username

Install Docker Compose

Guide: Install Docker Compose https://docs.docker.com/compose/install/#master-builds

sudo curl -L "https://github.com/docker/compose/releases/download/1.23.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

sudo chmod +x /usr/local/bin/docker-compose

sudo cp /usr/local/bin/docker-compose /usr/bin/

Generate Genesis Block and Modify the Source Code for the Submodule Bitcoin-BIMS

In the submodule directory, Bitcoin-BIMS/genesis-block/ run the following command:

./genesis 044e6c20a3dbb6938b6428b17628682eb3daba62849455e13e71966a6ccb576da081381e060f41e9911b4f5a7a70025be5ff787d1b4308159edc2a5075ff688fea   "27/Dec/2018 Xiaoyang, Blockchain-based Identity Management System for IoT" 486604799

Get the last three return values: Hash, Nonce, and Unix time Modify the following two lines:

In src/chainparams.cpp

genesis = CreateGenesisBlock(Unix time, Nonce, 0x1d00ffff, 1, 50 * COIN);
assert(consensus.hashGenesisBlock == uint256S("0xHash"));

Run Miner

Entering one container, run the miner

docker ps

docker exec -it node-1 bash

cd /root/miner

./minerd --user rpc --pass x --url http://127.0.0.1:10340/ --threads 1 --coinbase-addr 1Ez1ZNPLPb8rotecEBZWtNWNx8oijzwxQv --coinbase-sig "BIMS coins" -a sha256d -D

Enabled Update Transactions Functionality

After 5 blocks, the maturity of coinbase becomes generated from immature

docker exec -it node-1 bash

// import the private key of predefined account: 1Ez1ZNPLPb8rotecEBZWtNWNx8oijzwxQv
bitcoin-cli -rpcuser=rpc -rpcpassword=x -rpcport=10340 importprivkey L5nBDMzHzTHvR3fKa5VGT8r9cYdVSn9WJU3puoUGcN93SeqT7nrb

In node-1 (localhost:35001), you can send transactions in Blockchain IdP module.

Predefined Bitcoin Coinbase Account

This account was created for providing fees of sending identity transactions in Apiscerana Blockchain module.

	// generate params: "" legacy, the second one is for 1 prefix address, otherwise the default is p2sh with 3 prefix address
	bitcoin-cli -rpcuser=rpc -rpcpassword=x -rpcport=10340 getnewaddress "" legacy
	return value: 1Ez1ZNPLPb8rotecEBZWtNWNx8oijzwxQv

	// dump the private key of 1Ez1ZNPLPb8rotecEBZWtNWNx8oijzwxQv
	bitcoin-cli -rpcuser=rpc -rpcpassword=x -rpcport=10340 dumpprivkey 1Ez1ZNPLPb8rotecEBZWtNWNx8oijzwxQv
	return value: L5nBDMzHzTHvR3fKa5VGT8r9cYdVSn9WJU3puoUGcN93SeqT7nrb