手把手教你快速搭建 EOS 主網見證人節點（BP）

EOS主網啓動至今已經超過一個月，然而截至當前，註冊成爲EOS Block Producer（大家習慣稱爲見證人）的賬號僅有393個，活躍的EOS BP節點更是僅有376個，遠遠不如EOS主網上線前我的預期。

來源：https://eosmeta.io/

 

這裏我們不討論個人啓動EOS BP節點是否有意義，是否有利可圖。僅從技術上講，註冊成爲EOS BP賬號並搭建EOS BP節點的難度也讓很多愛好者望而卻步。同時目前網絡上相關資料，我可以說是幾乎都不準確，要麼是東拼西湊來的，要麼是翻譯官方通用文檔但並不適用於EOS主網。

那麼本篇文章就通過實戰手把手教你如何搭建一個最簡單的EOS BP節點。

首先假設我們已經註冊了EOS賬號，賬號名爲 producer1111 ，且已經通過購買和抵押獲得了基本的RAM，CPU和NET資源。注意，本文中 producer1111 賬戶以及密鑰對均爲虛構，應根據實際情況替換。

安裝DOCKER

Docker可以理解爲應用軟件的運行容器，我們之後會使用Docker運行EOS的應用軟件。我們需要在一臺Mac或Linux主機上安裝Docker，如果你只有Windows主機，那麼請先安裝虛擬機或購買雲主機。

國外的朋友請參照Docker官網進行安裝：

https://docs.docker.com/install/

國內的朋友建議使用Daocloud的服務加速Docker和EOS軟件下載速度：

http://get.daocloud.io/

拉取EOS軟件DOCKER鏡像

$ docker pull eosio/eos
Using default tag: latest
latest: Pulling from eosio/eos
6b98dfc16071: Already exists
4001a1209541: Already exists
6319fc68c576: Already exists
b24603670dc3: Already exists
97f170c87c6f: Already exists
ca8277dae3e4: Already exists
d9de8ba6e50e: Already exists
1deb6823b375: Pull complete
9c2603092f7e: Pull complete
1300b7a5da6e: Pull complete
d2db7bdf8eb8: Pull complete
13d59df8dca8: Pull complete
Digest: sha256:cbd42518fc56a699c7e70687c34821fd505e466dc1af25fa6c671e7b4c7dbaf5
Status: Downloaded newer image for eosio/eos:latest

我們拉取官方eosio/eos鏡像的最新版本，本文完成時爲 v1.0.8 。

註冊 PRODUCER1111 賬戶爲EOS BP

啓動並進入容器：

$ docker run -it --rm eosio/eos
root@4606b6d1b632:/#

我們使用eosio/eos鏡像啓動了一個臨時EOS軟件容器。

注意之後我們在容器中的命令均以 root@4606b6d1b632:/# 開頭。

創建默認錢包：

root@4606b6d1b632:/# cleos wallet create
"/opt/eosio/bin/keosd" launched
Creating wallet: default
Save password to use in the future to unlock this wallet.
Without password imported keys will not be retrievable.
"PW5HyYPYshs9vHc8AashiSF17CMKd1ymPXEP5wJbXQHMpR69m5iPd"

導入 producer1111 賬戶的私鑰：

root@4606b6d1b632:/# cleos wallet import 5Kg8jkyxSZ7GSAYGUJ42PugigxEKHpxEaRiWsSu8tgfUb98yxf9
imported private key for: EOS7PD3ykQtKAgkkYb4jrG5fpgZa4RPTUmyq8r31eNdgxwMjUx7sR

註冊EOS BP：

root@4606b6d1b632:/# cleos -u https://mainnet.eoscannon.io system regproducer producer1111 EOS7PD3ykQtKAgkkYb4jrG5fpgZa4RPTUmyq8r31eNdgxwMjUx7sR

這條命令中，我們使用參數 -u https://mainnet.eoscannon.io 爲cleos指定了遠程RPC節點，因此本機不需要啓動nodeos並同步數據。

爲自己投票：

root@4606b6d1b632:/# cleos -u https://mainnet.eoscannon.io system voteproducer prods producer1111 producer1111

登錄 https://eosmonitor.io/ ，查詢 producer1111 賬戶，可看到已更變爲 Producer Account ：

來源：https://eosmonitor.io/

 

此容器中的數據均爲臨時數據，執行 exit 退出並銷燬容器：

root@4606b6d1b632:/# exit
exit

配置GENESIS.JSON創世文件

主機中新建 /tmp/eos-work 目錄，並在 /tmp/eos-work 目錄下建立 genesis.json 文件：

$ mkdir -p /tmp/eos-work
$ cd /tmp/eos-work
$ vim genesis.json

寫入以下信息：

{
  "initial_timestamp": "2018-06-08T08:08:08.888",
  "initial_key": "EOS7EarnUhcyYqmdnPon8rm7mBCTnBoot6o7fE2WzjvEX2TdggbL3",
  "initial_configuration": {
    "max_block_net_usage": 1048576,
    "target_block_net_usage_pct": 1000,
    "max_transaction_net_usage": 524288,
    "base_per_transaction_net_usage": 12,
    "net_usage_leeway": 500,
    "context_free_discount_net_usage_num": 20,
    "context_free_discount_net_usage_den": 100,
    "max_block_cpu_usage": 200000,
    "target_block_cpu_usage_pct": 1000,
    "max_transaction_cpu_usage": 150000,
    "min_transaction_cpu_usage": 100,
    "max_transaction_lifetime": 3600,
    "deferred_trx_expiration_window": 600,
    "max_transaction_delay": 3888000,
    "max_inline_action_size": 4096,
    "max_inline_action_depth": 4,
    "max_authority_depth": 6
  }
}

主網 genesis.json 文件可以在網絡上找到，內容都是一致，只有使用這些配置，才能創建可以鏈接到EOS主網的區塊鏈。

初始化區塊鏈

啓動並進入容器：

$ docker run -it --rm -v /tmp/eos-work:/eos-work eosio/eos
root@4606b6d1b632:/#

我們使用eosio/eos鏡像啓動了一個EOS軟件容器，並將主機 /tmp/eos-work 目錄掛載到容器的 /eos-work 目錄，共享主機與容器的數據，且容器關閉後數據不會丟失，還存在主機中。我們的配置和區塊鏈數據均會存儲在此目錄，上一步的 genesis.json 就在此目錄。

初始化EOS主網區塊鏈：

root@4606b6d1b632:/# nodeos --config-dir /eos-work --data-dir /eos-work --genesis-json /eos-work/genesis.json
1456650ms thread-0   chain_plugin.cpp:209          plugin_initialize    ] initializing chain plugin
1456654ms thread-0   chain_plugin.cpp:379          plugin_initialize    ] Using genesis state provided in '/eos-work/genesis.json'
1456655ms thread-0   chain_plugin.cpp:385          plugin_initialize    ] Starting up fresh blockchain with provided genesis state.
CHAINBASE:   Failed to pin chainbase shared memory (of size 1024 MB) in RAM. Performance degradation is possible.
CHAINBASE:   Failed to pin chainbase shared memory (of size 340 MB) in RAM. Performance degradation is possible.
1456692ms thread-0   http_plugin.cpp:331           plugin_initialize    ] configured http to listen on 127.0.0.1:8888
1456693ms thread-0   net_plugin.cpp:2948           plugin_initialize    ] Initialize net plugin
1456693ms thread-0   net_plugin.cpp:2972           plugin_initialize    ] host: 0.0.0.0 port: 9876
1456693ms thread-0   net_plugin.cpp:3044           plugin_initialize    ] my node_id is e3f599fdaa9ec53a0481a01200e4fab4613512dbc3b51e18f2f7c5e96d021d86
1456694ms thread-0   main.cpp:104                  main                 ] nodeos version ef654aa3
1456694ms thread-0   main.cpp:105                  main                 ] eosio root is /root/.local/share
1456694ms thread-0   controller.cpp:1212           startup              ] No head block in fork db, perhaps we need to replay
1456695ms thread-0   controller.cpp:305            initialize_fork_db   ]  Initializing new blockchain with genesis state
1456767ms thread-0   chain_plugin.cpp:450          plugin_startup       ] starting chain in read/write mode
1456767ms thread-0   chain_plugin.cpp:455          plugin_startup       ] Blockchain started; head block is #1, genesis timestamp is 2018-06-08T08:08:08.888
1456768ms thread-0   http_plugin.cpp:376           plugin_startup       ] start listening for http requests
1456768ms thread-0   net_plugin.cpp:3056           plugin_startup       ] starting listener, max clients is 25
1456768ms thread-0   producer_plugin.cpp:580       plugin_startup       ] producer plugin:  plugin_startup() begin
1456769ms thread-0   producer_plugin.cpp:607       plugin_startup       ] producer plugin:  plugin_startup() end

這個命令啓動了nodeos節點程序，並傳入3個參數：

--config-dir /eos-work
--data-dir /eos-work
--genesis-json /eos-work/genesis.json

nodeos啓動後輸出類似信息說明區塊鏈初始化成功，我們 ctrl+c 退出nodeos，然後在容器中執行 exit 退出關閉容器。

配置EOS BP節點信息

進入主機 /tmp/eos-work 目錄，查看上一步生成的目錄文件：

$ cd /tmp/eos-work
$ ll
total 32
drwxr-xr-x  5 xxx  wheel   160B  7 12 23:24 blocks
-rw-r--r--  1 xxx  wheel   9.2K  7 12 23:24 config.ini
-rw-r--r--  1 xxx  wheel   816B  7 12 23:01 genesis.json
drwxr-xr-x  5 xxx  wheel   160B  7 12 23:29 state

config.ini 是由nodeos生成的默認配置文件，搭建 producer1111 賬戶的BP節點最少需要修改以下配置：

# BP賬戶名
producer-name = producer1111
# signature-provider的格式爲${public_key}=KEY:${private_key}
signature-provider = EOS7PD3ykQtKAgkkYb4jrG5fpgZa4RPTUmyq8r31eNdgxwMjUx7sR=KEY:5Kg8jkyxSZ7GSAYGUJ42PugigxEKHpxEaRiWsSu8tgfUb98yxf9

# 必要插件
plugin = eosio::chain_plugin
plugin = eosio::chain_api_plugin
plugin = eosio::producer_plugin
plugin = eosio::http_plugin

# 可選支持錢包操作
# plugin = eosio::wallet_plugin
# plugin = eosio::wallet_api_plugin

# 若不希望暴露RPC端口給網外，修改爲127.0.0.1:8888
http-server-address = 0.0.0.0:8888

# 可以添加多個，但是你用到的時候可能已經失效，若沒有一個能用的通信節點，可在網絡上查找
p2p-peer-address = bp.cryptolions.io:9876
p2p-peer-address = p2p.mainnet.eospace.io:88
p2p-peer-address = eu-west-nl.eosamsterdam.net:9876
p2p-peer-address = eosnode.fi:9888
p2p-peer-address = api.eosuk.io:12000
p2p-peer-address = fullnode.eoslaomao.com:443
p2p-peer-address = new.eoshenzhen.io:10034
p2p-peer-address = peer.eosio.sg:9876
p2p-peer-address = eos.nodepacific.com:9876
p2p-peer-address = 18.234.6.119:80
p2p-peer-address = eu1.eosdac.io:49876
p2p-peer-address = br.eosrio.io:9876
p2p-peer-address = p2p-public.hkeos.com:19875
p2p-peer-address = node.eosmeso.io:9876
p2p-peer-address = pub1.eostheworld.io:9876
p2p-peer-address = 807534da.eosnodeone.io:19872
p2p-peer-address = mainnet.eoseco.com:10010
p2p-peer-address = p2p.meet.one:9876
p2p-peer-address = node.eosflare.io:1883
p2p-peer-address = mainnet.eoscalgary.io:5222
p2p-peer-address = eos-p2p.worbli.io:33981
p2p-peer-address = 18.188.38.175:9876
p2p-peer-address = 18.221.255.38:9876
p2p-peer-address = eos.staked.us:9870
p2p-peer-address = peering.dutcheos.io:9876
p2p-peer-address = 18.188.4.97:9876
p2p-peer-address = 18.191.125.105:9876
p2p-peer-address = boot.eostitan.com:9876
p2p-peer-address = eosboot.chainrift.com:9876

啓動BP節點

後臺啓動BP節點：

$ docker run -d -p 8888:8888 -p 9876:9876 --rm --name eosio -v /tmp/eos-work:/eos-work eosio/eos nodeos --config-dir /eos-work --data-dir /eos-work
a5f0f3332e7b4266cff0e6de9369e5df54c9d02f9a9845b373b04d2554008a6c

這一步我們使用 -p 8888:8888 -p 9876:9876 將容器中的兩個端口映射到本機的對應端口，使得可以被外部訪問。 -d 參數使容器直接後臺啓動。 --name eos 將容器命名爲eosio。

因爲 eos-work 目錄中已經初始化了區塊數據，所以啓動nodeos時不能再指定 genesis.json 文件。

查看容器輸出：

$ docker logs eosio
176343ms thread-0   chain_plugin.cpp:209          plugin_initialize    ] initializing chain plugin
176364ms thread-0   block_log.cpp:123             open                 ] Log is nonempty
176367ms thread-0   block_log.cpp:141             open                 ] Index is nonempty
176386ms thread-0   http_plugin.cpp:290           plugin_initialize    ] configured http to listen on 127.0.0.1:18888
176386ms thread-0   net_plugin.cpp:2948           plugin_initialize    ] Initialize net plugin
176386ms thread-0   net_plugin.cpp:2972           plugin_initialize    ] host: 0.0.0.0 port: 9876
176387ms thread-0   net_plugin.cpp:3044           plugin_initialize    ] my node_id is abf02d39810fd00b66173669f4d7031a11874e5655f984b3e797a23a7b0e01ca
176388ms thread-0   main.cpp:104                  main                 ] nodeos version 5875549c

查看BP節點運行狀態：

$ docker exec -it eosio cleos get info
{
  "server_version": "5875549c",
  "chain_id": "aca376f206b8fc25a6ed44dbdc66547c36c6c33e3a119ffbeaef943642f0e906",
  "head_block_num": 979967,
  "last_irreversible_block_num": 979641,
  "last_irreversible_block_id": "000ef2b965e1dd90df22859312e82adcb59822a7b178b5c3c08a10fab282e5b9",
  "head_block_id": "000ef3ff63ad4428650bc934322c9297b49d328e5806f10008734a13a0eeb6e4",
  "head_block_time": "2018-06-16T03:12:42.500",
  "head_block_producer": "eosriobrazil",
  "virtual_block_cpu_limit": 200000000,
  "virtual_block_net_limit": 1048576000,
  "block_cpu_limit": 199900,
  "block_net_limit": 1048576
}

如果 chain_id 爲 aca376f206b8fc25a6ed44dbdc66547c36c6c33e3a119ffbeaef943642f0e906 ，說明已經鏈接上主網，並在同步區塊鏈數據。

這個信息顯示主網區塊才同步到2018-06-16T03:12:42.500。等到BP節點和主網完全同步後，便可以使用cleos進行各種操作了。

同時我們也可以在 https://eosmeta.io/ 上查看BP節點信息：

來源：https://eosmeta.io/