Create a private node with Hyperledger Besu

Hyperledger Besu is an Ethereum client designed to be enterprise-friendly for both public and private permissioned network use cases. It can also be ran on test networks such as` Rinkeby, Ropsten, and Görli. Hyperledger Besu includes several consensus algorithms including PoW, and PoA (IBFT, IBFT 2.0, Etherhash, and Clique). Its comprehensive permissioning schemes are designed specifically for use in a consortium environment.

Requirements

Server ( or you can using laptop/pc )
OS ( recomendation using linux ) but u can use a windows or mac
JDK 11 or lastest
Source besu

Installation

Download and Extract a besu binary package here,

[nasri@nasri-80t2 besu]$ tree
.
| — LICENSE
| — besu.autocomplete.sh
| — bin
|  | — besu
|  ` — besu.bat
| — lib

create folder for node and configuration folder in bin folder like this

.
|-- LICENSE
|-- besu.autocomplete.sh
|-- bin
|   |-- besu
|   |-- besu.bat
|   `-- node
|       |-- config
|       |-- node1
|       |   `-- data
|       |-- node2
|       |   `-- data
|       `-- node3
|           `-- data
|-- lib

open terminal in “node” folder and create ibftConfigFile for configuration consensus

ibftConfigFiles.json
{  
  "genesis": {    
    "config": {       
      "chainId": 2018,
      "constantinoplefixblock": 0,
      "ibft2": {         
         "blockperiodseconds": 2,
         "epochlength": 30000,
         "requesttimeoutseconds": 10
       }
     },
     "nonce": "0x0",
     "timestamp": "0x58ee40ba",
     "gasLimit": "0x47b760",
     "difficulty": "0x1",
     "mixHash": "0x63746963616c2062797a616e74696e65206661756c7420746f6c6572616e6365",
     "coinbase": "0x0000000000000000000000000000000000000000",     
     "alloc": {
        "fe3b557e8fb62b89f4916b721be55ceb828dbd73": {
           "privateKey": "8f2a55949038a9610f50fb23b5883af3b4ecb3c3bb792cbcefbd1542c692be63",
           "comment": "private key and this comment are ignored.  In a real chain, the private key should NOT be stored",
           "balance": "0xad78ebc5ac6200000"
        },
        "627306090abaB3A6e1400e9345bC60c78a8BEf57": {
          "privateKey":
 "c87509a1c067bbde78beb793e6fa76530b6382a4c0241e5e4a9ec0a0f44dc0d3",
          "comment": "private key and this comment are ignored.  In a real chain, the private key should NOT be stored",
          "balance": "90000000000000000000000"
        },
        "f17f52151EbEF6C7334FAD080c5704D77216b732": {
          "privateKey": "ae6ae8e5ccbfb04590405997ee2d52d2b330726137b875053c36d94e974d162f",
          "comment": "private key and this comment are ignored.  In a real chain, the private key should NOT be stored",
          "balance": "90000000000000000000000"
        }
       }
  },
  "blockchain": {
    "nodes": {
      "generate": true,
        "count": 3
    }
  }
 }

save this json into config folder and run operator command like this

../besu operator generate-blockchain-config --config-file config/ibftConfigFile.json --to networkFiles --private-key-file-name key

after execute that command will be automatic created networkFiles with address and genesis file

networkFiles/
|-- genesis.json
`-- keys
    |-- 0x000<Address>
    |   |-- key
    |   `-- key.pub
    |-- 0x000<Address>
    |   |-- key
    |   `-- key.pub
    `-- 0x000<Address>
        |-- key
        `-- key.pub

Copy genesis from networkFiles folder into config folder

mv networkFiles/genesis.json config/

Copy the node private keys to the node directories

.
|-- node1
|   `-- data
|       |-- key
|       `-- key.pub
|-- node2
|   `-- data
|       |-- key
|       `-- key.pub
`-- node3
    `-- data
        |-- key
        `-- key.pub

create “toEncode.json” files for rlp (for extradata in genesis) and save into config folder

["address","address","address"]

execute source bellow to generate extraData

../besu rlp encode --from your_rlp_file --to dest_files  

after generate extraData, copy into genesis files and change address and private key on genesis files.

create toml configuration like a environment and save into all nodes folder with name “config.toml”

data-path="node1/data"
genesis-file="config/genesis.json"
#static-nodes-file="config/static_nodes.json"
rpc-http-enabled=true
rpc-http-api=["ETH","NET","IBFT","WEB3","ADMIN"]
rpc-http-host="127.0.0.1"
rpc-http-port="8545"
rpc-http-cors-origins=["all"]
p2p-host="127.0.0.1"
p2p-port="30303"

change port between nodes and save, and folder tree like that

.
|-- config
|   |-- genesis.json
|   |-- ibftConfigFile.json
|   |-- static-nodes.json
|   `-- toEncode.json
|-- networkFiles
|   `-- keys
|       |-- 0x5f86cab243c3856702dda8a73eaf9a1aca64007d
|       |-- 0x73037201d81e3a21fa670cde83f1ca9d4ca86aff
|       `-- 0x9b4d32c4d263c61910d3c08233de60e2f1e82f27
|-- node1
|   |-- config.toml
|   `-- data
|       |-- key
|       `-- key.pub
|-- node2
|   |-- config.toml
|   `-- data
|       |-- key
|       `-- key.pub
|-- node3
|   |-- config.toml
|   `-- data
|       |-- key
|       `-- key.pub
`-- rlp.json
12 directories, 14 files

run config file for get a enode for creating static-nodes

copy enode into “static-nodes.json” and save into config folder and running other nodes

["enode-1","enode-2","enode-n"]

after created, u can remove # from toml config for using static nodes

../besu --config-file node1/config.toml

run all node, im recomended for using tmux and split screen

check peer count in terminal using

curl -X POST --data '{"jsonrpc":"2.0","method":"net_peerCount","params":[],"id":1}' http://127.0.0.1:8545/

example result

{
   "jsonrpc" : "2.0",
   "id" : 1,
   "result" : "0x2" 
}
0x2 is total node pairing in your rpc

if your result like that, congrats your private node has been success