1. BTC 系列之docker节点¶

1.1. Docker 启动¶

1.1.1. testnet¶

目前BTC测试网数据，大约占据了32G 硬盘存储空间，耗费大约80分钟

docker run --name btc-test-node -p 18332:18332  -d fpchen/btc-testnet:m1

1.1.2. regtest¶

docker run --name btc-dev-node -p 18443:18443  -d fpchen/btc-regtest:m1

1.2. 程序启动¶

1、配置文件, 编辑 /etc/bitcoin/bitcoin.conf

daemon=1
server=1
rpcuser=test
rpcpassword=test
regtest=1
txindex=1
rpcallowip=0.0.0.0/0
discover=0
listen=0

2、启动本地私链

➜ bitcoind -conf=/etc/bitcoin/bitcoin.conf
Bitcoin Core starting

3、获取bitcoind 监听的端口, 本地一般是 18843

➜  netstat --ip -lpa | grep bitcoind
tcp   0  0   localhost:18443     0.0.0.0:*       LISTEN      6768/bitcoind

4、发送请求, 测试服务是否运行

➜  curl --request POST \
    --user test:test \
    --data-binary '{"jsonrpc": "1.0", "id":"curltest", "method": "getblockchaininfo", "params": [] }' \
    -H 'content-type: applicaiton/json;' \
    http://127.0.0.1:18443/
{
	"result": {
		"chain": "regtest",
		"blocks": 303,
		"headers": 303,
		"bestblockhash": "5eba253aed009e25d347d59906c39bf47ae13ca7dc6ccd58c41edd549dd06214",
		"difficulty": 4.656542373906925e-10,
		"mediantime": 1600689629,
		"verificationprogress": 1,
		"initialblockdownload": false,
		"chainwork": "0000000000000000000000000000000000000000000000000000000000000260",
		"size_on_disk": 91959,
		"pruned": false,
		"softforks": {
			.......
		},
		"warnings": ""
	},
	"error": null,
	"id": "curltest"
}

5、导入私钥进钱包, 默认钱包名称为 ""

➜ bitcoin-cli -conf=/etc/bitcoin/bitcoin.conf  -rpcwallet="" importprivkey "cUDfdzioB3SqjbN9vutRTUrpw5EH9srrg6RPibacPo1fGHpfPKqL"

6、构造生成块, 需要生成101个块, 如果需要使用coinbase交易, 需要100个块后确认, 最好多于100个块
```
➜  bitcoin-cli -conf=/etc/bitcoin/bitcoin.conf generatetoaddress 101 mvuTXVzk7n9QYHMhyUUfaPdeQ4QVwA2fmT
```

7、根据hash 2d9ce904ac4d0df8dffec9a9a7e2c65883c357c37bceab044fb70f3515f9720c查询块内交易

➜  bitcoin-cli -conf=/etc/bitcoin/bitcoin.conf getblock 2d9ce904ac4d0df8dffec9a9a7e2c65883c357c37bceab044fb70f3515f9720c
{
  "hash": "2d9ce904ac4d0df8dffec9a9a7e2c65883c357c37bceab044fb70f3515f9720c",
  "confirmations": 196,
  "strippedsize": 217,
  "size": 253,
  "weight": 904,
  "height": 108,
  "version": 536870912,
  "versionHex": "20000000",
  "merkleroot": "d0bce39e8a8a52ec58e71cb0acc28f21a2d54917e9c201619454d65078766ce4",
  "tx": [
    "d0bce39e8a8a52ec58e71cb0acc28f21a2d54917e9c201619454d65078766ce4"
  ],
  "time": 1600689597,
  "mediantime": 1600689596,
  "nonce": 0,
  "bits": "207fffff",
  "difficulty": 4.656542373906925e-10,
  "chainwork": "00000000000000000000000000000000000000000000000000000000000000da",
  "nTx": 1,
  "previousblockhash": "642bf8c9135ef0fc37799a7348ecbc5d4e70a89cfce7e59586ad6fe34b64e093",
  "nextblockhash": "1f767a69b1c168ba55ade509c2b5cca11d848672e331a91dc5035778b243c0a7"
}

8、根据交易hash d0bce39e8a8a52ec58e71cb0acc28f21a2d54917e9c201619454d65078766ce4 查询交易

➜  bitcoin-cli -conf=/etc/bitcoin/bitcoin.conf gettxout d0bce39e8a8a52ec58e71cb0acc28f21a2d54917e9c201619454d65078766ce4 0
{
  "bestblock": "5eba253aed009e25d347d59906c39bf47ae13ca7dc6ccd58c41edd549dd06214",
  "confirmations": 196,#coinbase 交易需要100个确认才能使用
  "value": 50.00000000,
  "scriptPubKey": {
    "asm": "OP_DUP OP_HASH160 a8cb707e4d0a5c6e690189bc0065a8f787aabced OP_EQUALVERIFY OP_CHECKSIG",
    "hex": "76a914a8cb707e4d0a5c6e690189bc0065a8f787aabced88ac",
    "reqSigs": 1,
    "type": "pubkeyhash",
    "addresses": [
      "mvuTXVzk7n9QYHMhyUUfaPdeQ4QVwA2fmT"
    ]
  },
  "coinbase": true
}

1.3. Docker 脚本¶

主要以测试网为主，私链无所谓配置

bitcoin.conf

daemon=1
server=1
rpcuser=axontest
rpcpassword=axontest
txindex=1
testnet=1
fallbackfee=0.02
datadir=/data/bitcoin/bitcoin-data

[test]
rpcallowip=0.0.0.0/0
rpcbind=0.0.0.0
rpcport=18332
addnode=47.100.162.210
addnode=114.214.228.185 
# https://bitnodes.io/#join-the-network 查找可用节点同步数据

Dockerfile

FROM ubuntu:18.04
ADD https://bitcoin.org/bin/bitcoin-core-0.20.0/bitcoin-0.20.0-x86_64-linux-gnu.tar.gz .
RUN tar -xzvf bitcoin-0.20.0-x86_64-linux-gnu.tar.gz -C ./
ADD entrypoint.sh ./
ADD bitcoin.conf /etc/bitcoin/bitcoin.conf
user root
RUN chmod 777 ./entrypoint.sh
RUN chmod go-w /etc/bitcoin/bitcoin.conf
RUN mkdir -p /data/bitcoin/bitcoin-data
RUN chown -R 755 /data/bitcoin/bitcoin-data

EXPOSE 18332
ENTRYPOINT ["./entrypoint.sh"]

启动脚本

#!/bin/bash

export PATH=/bitcoin-0.20.0/bin:$PATH

bitcoind --conf=/etc/bitcoin/bitcoin.conf  
echo "wait 90 sec for bitcoind start" # 需要等一会儿确保服务启动
sleep 90

bitcoin-cli -conf=/etc/bitcoin/bitcoin.conf createwallet miner
bitcoin-cli -conf=/etc/bitcoin/bitcoin.conf -rpcwallet="miner" importprivkey "cURtxPqTGqaA5oLit5sMszceoEAbiLFsTRz7AHo23piqamtxbzav"

bitcoin-cli  -conf=/etc/bitcoin/bitcoin.conf getnetworkinfo # network 
bitcoin-cli  -conf=/etc/bitcoin/bitcoin.conf getpeerinfo # peer info
bitcoin-cli  -conf=/etc/bitcoin/bitcoin.conf getblockchaininfo # verificationprogress 代表区块同步进度

tail -f /data/bitcoin/bitcoin-data/testnet3/debug.log # 同步的日志所在位置