Substrate构建联盟链

Substrate构建联盟链

在模板基础上修改

# 拉取模板代码
$ git clone -b v3.0.0 --depth 1 https://github.com/substrate-developer-hub/substrate-node-template

添加node-authorization pallet

修改runtime/Cargo.toml👇

[dependencies]
....
# 添加pallet-node-authorization依赖
pallet-node-authorization = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', tag = 'monthly-2021-05'}

std = [
...
		'pallet-node-authorization/std', // 添加std
]

在runtime/src/lib.rs中为Runtime实现pallet_node_authorization::Config👇

use frame_system::EnsureRoot;

parameter_types! {
    pub const MaxWellKnownNodes: u32 = 8;
    pub const MaxPeerIdLength: u32 = 128;
}

impl pallet_node_authorization::Config for Runtime {
    type Event = Event;
    type MaxWellKnownNodes = MaxWellKnownNodes;
    type MaxPeerIdLength = MaxPeerIdLength;
    type AddOrigin = EnsureRoot<AccountId>;
    type RemoveOrigin = EnsureRoot<AccountId>;
    type SwapOrigin = EnsureRoot<AccountId>;
    type ResetOrigin = EnsureRoot<AccountId>;
    type WeightInfo = ();
}

在construct_runtime宏中添加NodeAuthorization👇

construct_runtime!(
    pub enum Runtime where
        Block = Block,
        NodeBlock = opaque::Block,
        UncheckedExtrinsic = UncheckedExtrinsic
    {
				...
        NodeAuthorization: pallet_node_authorization::{Pallet, Call, Storage, Event<T>, Config<T>},

    }
);

添加创世配置，即添加管理账户

node/cargo.toml中添加bs58依赖，因为AccountId需要使用这种方式编码👇

[dependencies]
...
bs58 = "0.4.0"

创世配置👇

use sp_core::OpaquePeerId;
use node_template_runtime::NodeAuthorizationConfig;



fn testnet_genesis(
    wasm_binary: &[u8],
    initial_authorities: Vec<(AuraId, GrandpaId)>,
    root_key: AccountId,
    endowed_accounts: Vec<AccountId>,
    _enable_println: bool,
) -> GenesisConfig {

    // 添加下面的内容,这里的两个Account是官方教程中用到的，实际使用的时候要自己使用`subkey generate-node-key`命令生成

		pallet_node_authorization: NodeAuthorizationConfig {
			nodes: vec![
				(
					OpaquePeerId(bs58::decode("12D3KooWBmAwcd4PJNJvfVHwE48nwkRmAgo8Vy3uQEyNNHBox2").into_vec().unwrap()),
					endowed_accounts[0].clone()
				),
				(
					OpaquePeerId(bs58::decode("12D3KooWQYV9dGMFoRzNStwpXztXaBUjtPqi6aU76ZgUriHhKust").into_vec().unwrap()),
					endowed_accounts[1].clone()
				),
			],
		},

}

运行

$ cargo build --release

# 启动第一个验证节点
$ ./target/release/node-template \
    --chain=local \
    --base-path /tmp/validator1 \
    --alice \
    --node-key=c12b6d142f5ee8528c8e2baf4e147b5c5c18710926ea492d09cbd9f6c9f82a \
    --port 30333 \
    --ws-port 9944

# 启动第二个验证节点
$ ./target/release/node-template \
  --chain=local \
  --base-path /tmp/validator2 \
  --bob \
  --node-key=6ce3be907dbcabf20a9a5a60a712b4256a196000a8ed4050d352bc113f8c58 \
  --port 30334 \
  --ws-port 9945

# 此时就已经可以出块了

如何管理节点

关于官方文档中有问题的几点