**Ignite CLI**是Cosmos SDK的脚手架，可以非常方便迅速的帮助我们构建一条链出来，官网有一些示例感兴趣的可以去看看。
有三台服务器来部署这条公链，当然功能很简单，具体可以往下看，三台机器的主机名分别是node1、node2、node3。
在此之前我们需要在node1上面编译和测试，需要安装Go和Ignite CLI。
wget https://go.dev/dl/go1.19.1.linux-amd64.tar.gz
rm -rf /usr/local/go && tar -C /usr/local -xzf go1.19.1.linux-amd64.tar.gz
rm -f go1.19.1.linux-amd64.tar.gz
echo 'export PATH=$PATH:/usr/local/go/bin' >> .bashrc
echo 'export GOPATH=$(go env GOPATH)' >> .bashrc
echo 'export PATH=$PATH:$(go env GOPATH)/bin' >> .bashrc
source .bashrc
$ go version
go version go1.19.1 linux/amd64
# 目前的版本锁定在了v0.22.2，去掉版本号则安装最新版本
curl https://get.ignite.com/cli@v0.22.2! | bash
$ ignite version
Ignite CLI version: v0.24.0
Ignite CLI build date: 2022-09-12T14:14:32Z
Ignite CLI source hash: 21c6430cfcc17c69885524990c448d4a3f56461c
Your OS: linux
Your arch: amd64
Your go version: go version go1.19.1 linux/amd64
Your uname -a: Linux node1 5.10.0-16-amd64 #1 SMP Debian 5.10.127-2 (2022-07-23) x86_64 GNU/Linux
Your cwd: /root
Is on Gitpod: false
参考文档，通过Ignite生成默认结构的区块链
ignite scaffold chain hello
进入项目目录
cd hello
生成一个查询
ignite scaffold query hello --response text
为查询添加固定返回值
$ vim x/hello/keeper/grpc_query_hello.go
package keeper
import (
"context"
sdk "github.com/cosmos/cosmos-sdk/types"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"hello/x/hello/types"
)
func (k Keeper) Hello(goCtx context.Context, req *types.QueryHelloRequest) (*types.QueryHelloResponse, error) {
if req == nil {
return nil, status.Error(codes.InvalidArgument, "invalid request")
}
ctx := sdk.UnwrapSDKContext(goCtx)
// TODO: Process the query
_ = ctx
return &types.QueryHelloResponse{Text: "Hello, Ignite CLI!"}, nil // 主要是添加了这么一段，查询时候返回固定的字符串
}
运行节点
ignite chain serve
执行上面的指令时候会自动buildhellod可执行文件，并放在$GOPATH/bin目录下
$ ls $GOPATH/bin
hellod ......
另外打开一个窗口，通过一下命令测试功能是否正常
hellod q hello hello
如果返回下面的字符串则表示运行成功
text: Hello, Ignite CLI!
也可以通过以下的指令build二进制文件
$ ignite chain build
Cosmos SDK's version is: stargate - v0.46.1
🛠️ Building proto...
📦 Installing dependencies...
🛠️ Building the blockchain...
🗃 Installed. Use with: hellod
下面我们将部署一条公链，任何人都可以连接，而不是本地链，参考文档
区块链初始化，链名为hello
hellod init hello
添加一个初始账户
$ hellod keys add node1
Enter keyring passphrase:
Re-enter keyring passphrase:
- address: cosmos1scp7az9zmy4k45utqx2qvy5t5r0jwel9md6777
name: node1
pubkey: '{"@type":"/cosmos.crypto.secp256k1.PubKey","key":"AuGNZwBX1zzSuMCsfMPRsFS9tRj3gxOM6mbVeL2wybXn"}'
type: local
**Important** write this mnemonic phrase in a safe place.
It is the only way to recover your account if you ever forget your password.
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增加一些初始代币到这个账户
hellod add-genesis-account cosmos1scp7az9zmy4k45utqx2qvy5t5r0jwel9md6777 100000000stake
hellod gentx node1 70000000stake --chain-id hello
hellod collect-gentxs
运行创始节点
hellod start
查询初始账户余额
$ hellod query bank balances $(hellod keys show node1 -a)
Enter keyring passphrase:
balances:
- amount: "30000000"
denom: stake
pagination:
next_key: null
total: "0"
首先需要将创始节点的hellod文件和genesis.json文件scp道node2和node3
scp $GOPATH/bin/hellod node2:/usr/local/bin/
scp ~/.hello/config/genesis.json node2:~/
scp $GOPATH/bin/hellod node3:/usr/local/bin/
scp ~/.hello/config/genesis.json node3:~/
以下操作可以在node2、node3一起执行
hellod start # 此时会报错，不用担心，这里只是为了生成目录结构
将genesis.json文件放到对应的位置
mv genesis.json ~/.hello/config/
设置seeds
$ vim ~/.hello/config/config.toml
seeds = "23d5f29159840281067fb4a16df7647567b01763@108.160.141.226:26656"
# seed可以设置多个，以逗号(,)隔开
# 108.160.141.226是node1的IP
# 23d5f29159840281067fb4a16df7647567b01763这个ID可以在启动创世节点的时候获取到，日志为
# INF Add our address to book addr={"id":"23d5f29159840281067fb4a16df7647567b01763","ip":"0.0.0.0","port":26656} book=/root/.hello/config/addrbook.json module=p2p
运行节点
hellod start
运行之后可以看到block已经在同步了
4:09AM INF Timed out dur=4746.732153 height=184 module=consensus round=0 step=1
4:09AM INF commit is for a block we do not know about; set ProposalBlock=nil commit=3025986FE26C5B693E204B1E0BA5B39CF61ED0688F38283EA73541815869FAB1 commit_round=0 height=184 module=consensus proposal={}
4:09AM INF received complete proposal block hash=3025986FE26C5B693E204B1E0BA5B39CF61ED0688F38283EA73541815869FAB1 height=184 module=consensus
4:09AM INF finalizing commit of block hash={} height=184 module=consensus num_txs=0 root=BD6EFFB8E3C2735BB2FDB602760C4251E2A3B11E85DF88EC2A4D57C1E5440ECE
4:09AM INF minted coins from module account amount=2stake from=mint module=x/bank
4:09AM INF executed block height=184 module=state num_invalid_txs=0 num_valid_txs=0
4:09AM INF commit synced commit=436F6D6D697449447B5B3731203139302031303020383320313832203531203832203231203731203131203139322031363320313335203336203233392031303320313431203639203131332031313220373220323334203138322031323120372032343120323235203239203232322032333720323531203133385D3A42387D
4:09AM INF committed state app_hash=47BE6453B6335215470BC0A38724EF678D45717048EAB67907F1E11DDEEDFB8A height=184 module=state num_txs=0
4:09AM INF indexed block height=184 module=txindex
在三台机器上面运行以下指令
hellod q hello hello
如果得到下面的输出，则表示功能正常
text: Hello, Ignite CLI!
在创始节点中创建了node1账号，下面分别在node2上面创建node2账号，node3上面创建node3账号
root@node2:~# hellod keys add node2
Enter keyring passphrase:
Re-enter keyring passphrase:
- address: cosmos1ryvrfexfkxe5da6z4ykldy987dykak6ha3s7m3
name: node2
pubkey: '{"@type":"/cosmos.crypto.secp256k1.PubKey","key":"AnOXk+1QuN0KIQVH1lNTvEfNnmZdKUoAggFMWh+ww9KX"}'
type: local
**Important** write this mnemonic phrase in a safe place.
It is the only way to recover your account if you ever forget your password.
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root@node3:~# hellod keys add node3
Enter keyring passphrase:
Re-enter keyring passphrase:
- address: cosmos18e42hnsay4a76namaa99jszcs9g5p5w3zn4m03
name: node3
pubkey: '{"@type":"/cosmos.crypto.secp256k1.PubKey","key":"Ar58cWSMo/ENU6UqW4RH8XywPNXe+cSGJhz2/3Zh266a"}'
type: local
**Important** write this mnemonic phrase in a safe place.
It is the only way to recover your account if you ever forget your password.
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查询三个账户的余额
root@node1:~# hellod query bank balances $(hellod keys show node1 -a)
Enter keyring passphrase:
balances:
- amount: "30000000"
denom: stake
pagination:
next_key: null
total: "0"
root@node2:~# hellod query bank balances $(hellod keys show node2 -a)
Enter keyring passphrase:
balances: []
pagination:
next_key: null
total: "0"
root@node3:~# hellod query bank balances $(hellod keys show node3 -a)
Enter keyring passphrase:
balances: []
pagination:
next_key: null
total: "0"
从node1账户转账100到node2账户
hellod tx bank send $(hellod keys show node1 -a) cosmos1ryvrfexfkxe5da6z4ykldy987dykak6ha3s7m3 100stake --chain-id hello
node2账户转账50到node3账户
hellod tx bank send $(hellod keys show node2 -a) cosmos18e42hnsay4a76namaa99jszcs9g5p5w3zn4m03 50stake --chain-id hello
node3账户转账10到node1账户
hellod tx bank send $(hellod keys show node3 -a) cosmos1scp7az9zmy4k45utqx2qvy5t5r0jwel9md6777 10stake --chain-id hello
root@node1:~# hellod query bank balances $(hellod keys show node1 -a)
Enter keyring passphrase:
balances:
- amount: "29999910"
denom: stake
pagination:
next_key: null
total: "0"
root@node2:~# hellod query bank balances $(hellod keys show node2 -a)
Enter keyring passphrase:
balances:
- amount: "50"
denom: stake
pagination:
next_key: null
total: "0"
root@node3:~# hellod query bank balances $(hellod keys show node3 -a)
Enter keyring passphrase:
balances:
- amount: "40"
denom: stake
pagination:
next_key: null
total: "0"