Configure node for a multi-node testnet

Cargo.lock

@@ -7589,6 +7589,7 @@ dependencies = [
  "frame-benchmarking-cli",
  "frame-system",
  "jsonrpsee",
+ "log",
  "pallet-tendermint",
  "pallet-transaction-payment",
  "pallet-transaction-payment-rpc",
@@ -7616,7 +7617,9 @@ dependencies = [
  "sp-core",
  "sp-inherents",
  "sp-keyring",
+ "sp-keystore",
  "sp-runtime",
+ "sp-tendermint",
  "sp-timestamp",
  "substrate-build-script-utils",
  "substrate-frame-rpc-system",

deploy/docker-compose.yml

@@ -25,7 +25,6 @@ volumes:
 
 
 services:
-
   _serai:
     &serai_defaults
     restart: unless-stopped
@@ -61,7 +60,7 @@ services:
       - cluster-coins-lg
     environment:
       CHAIN: dev
-      NAME: Alice
+      NAME: alice
       VALIDATOR: true
 
   serai-bob:
@@ -75,7 +74,8 @@ services:
       - cluster-coins-lg
     environment:
       CHAIN: dev
-      NAME: Bob
+      NAME: bob
+      VALIDATOR: true
 
   serai-charlie:
     <<: *serai_defaults
@@ -88,7 +88,8 @@ services:
       - cluster-coins-lg
     environment:
       CHAIN: dev
-      NAME: Charlie
+      NAME: charlie
+      VALIDATOR: true
 
   serai-dave:
     <<: *serai_defaults
@@ -122,6 +123,7 @@ services:
     environment:
       CHAIN: dev
       NAME: Ferdie
+
   # Processor Services
 
   # Coin Services

deploy/serai/Dockerfile

@@ -31,7 +31,6 @@ RUN --mount=type=cache,target=/usr/local/cargo/git \
     --mount=type=cache,target=/serai/target/release/lib* \
     cargo build --release
 
-
 # Prepare Image
 FROM ubuntu:latest as image
 LABEL description="STAGE 2: Copy and Run"

deploy/serai/scripts/entry-dev.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 if [[ -z $VALIDATOR ]]; then
-    serai-node --chain $CHAIN --name $NAME
+    serai-node --chain $CHAIN --$NAME
 else
-    serai-node --chain $CHAIN --name $NAME --validator
+    serai-node --chain $CHAIN --$NAME --validator
 fi

substrate/node/Cargo.toml

@@ -14,11 +14,14 @@ name = "serai-node"
 [dependencies]
 async-trait = "0.1"
 
+log = "0.4"
+
 clap = { version = "4", features = ["derive"] }
 jsonrpsee = { version = "0.15", features = ["server"] }
 
 sp-core = { git = "https://github.com/serai-dex/substrate" }
 sp-application-crypto = { git = "https://github.com/serai-dex/substrate" }
+sp-keystore = { git = "https://github.com/serai-dex/substrate" }
 sp-keyring = { git = "https://github.com/serai-dex/substrate" }
 sp-inherents = { git = "https://github.com/serai-dex/substrate" }
 sp-timestamp = { git = "https://github.com/serai-dex/substrate" }
@@ -53,6 +56,7 @@ sc-rpc-api = { git = "https://github.com/serai-dex/substrate" }
 substrate-frame-rpc-system = { git = "https://github.com/serai-dex/substrate" }
 pallet-transaction-payment-rpc = { git = "https://github.com/serai-dex/substrate" }
 
+sp-tendermint = { path = "../tendermint/primitives" }
 pallet-tendermint = { path = "../tendermint/pallet", default-features = false }
 serai-runtime = { path = "../runtime" }
 sc_tendermint = { path = "../tendermint/client" }

substrate/node/src/chain_spec.rs

@@ -19,7 +19,11 @@ fn account_id_from_name(name: &'static str) -> AccountId {
 }
 
 fn testnet_genesis(wasm_binary: &[u8], endowed_accounts: Vec<AccountId>) -> GenesisConfig {
-  let alice = account_id_from_name("Alice");
+  let session_key = |name| {
+    let key = account_id_from_name(name);
+    (key, key, SessionKeys { tendermint: Public::from(key) })
+  };
+
   GenesisConfig {
     system: SystemConfig { code: wasm_binary.to_vec() },
     balances: BalancesConfig {
@@ -27,7 +31,7 @@ fn testnet_genesis(wasm_binary: &[u8], endowed_accounts: Vec<AccountId>) -> Gene
     },
     transaction_payment: Default::default(),
     session: SessionConfig {
-      keys: vec![(alice, alice, SessionKeys { tendermint: Public::from(alice) })],
+      keys: vec![session_key("Alice"), session_key("Bob"), session_key("Charlie")],
     },
   }
 }

substrate/node/src/service.rs

@@ -1,9 +1,11 @@
 use std::{boxed::Box, sync::Arc, error::Error};
 
+use sp_keystore::SyncCryptoStore;
 use sp_runtime::traits::{Block as BlockTrait};
 use sp_inherents::CreateInherentDataProviders;
 use sp_consensus::DisableProofRecording;
-use sp_api::ProvideRuntimeApi;
+use sp_api::{BlockId, ProvideRuntimeApi};
+use sp_tendermint::TendermintApi;
 
 use sc_executor::{NativeVersion, NativeExecutionDispatch, NativeElseWasmExecutor};
 use sc_transaction_pool::FullPool;
@@ -219,11 +221,24 @@ pub async fn new_full(config: Configuration) -> Result<TaskManager, ServiceError
   })?;
 
   if is_authority {
+    let keys = keystore_container.sync_keystore();
+    let key = SyncCryptoStore::sr25519_public_keys(&*keys, sc_tendermint::KEY_TYPE_ID)
+      .get(0)
+      .cloned()
+      .unwrap_or_else(|| {
+        SyncCryptoStore::sr25519_generate_new(&*keys, sc_tendermint::KEY_TYPE_ID, None).unwrap()
+      });
+
+    let mut spawned = false;
+    let mut validators =
+      client.runtime_api().validators(&BlockId::Hash(client.chain_info().finalized_hash)).unwrap();
+    for (i, validator) in validators.drain(..).enumerate() {
+      if validator == key {
         task_manager.spawn_essential_handle().spawn(
           "tendermint",
           None,
           TendermintAuthority::new(authority).authority(
-        (0, keystore_container.keystore()),
+            (u16::try_from(i).unwrap(), keystore_container.keystore()),
             Cidp,
             sc_basic_authorship::ProposerFactory::new(
               task_manager.spawn_handle(),
@@ -236,6 +251,14 @@ pub async fn new_full(config: Configuration) -> Result<TaskManager, ServiceError
             None,
           ),
         );
+        spawned = true;
+        break;
+      }
+    }
+
+    if !spawned {
+      log::warn!("authority role yet not a validator");
+    }
   }
 
   network_starter.start_network();

substrate/tendermint/client/src/lib.rs

@@ -28,8 +28,8 @@ pub use block_import::TendermintSelectChain;
 pub(crate) mod authority;
 pub use authority::TendermintAuthority;
 
-const CONSENSUS_ID: [u8; 4] = *b"tend";
+pub const CONSENSUS_ID: [u8; 4] = *b"tend";
-const KEY_TYPE_ID: KeyTypeId = KeyTypeId(CONSENSUS_ID);
+pub const KEY_TYPE_ID: KeyTypeId = KeyTypeId(CONSENSUS_ID);
 
 /// Trait consolidating all generics required by sc_tendermint for processing.
 pub trait TendermintClient: Send + Sync + 'static {

substrate/tendermint/client/src/validators.rs

@@ -38,7 +38,6 @@ impl TendermintValidatorsStruct {
     let api = client.runtime_api();
     let session = api.current_session(&BlockId::Hash(last)).unwrap();
     let validators = api.validators(&BlockId::Hash(last)).unwrap();
-    assert_eq!(validators.len(), 1);
 
     Self {
       session,