BridgeHubKusama - initial setup - (chain_spec + basic runtime without any bridging pallets)

.github/workflows/release-30_create-draft.yml

@@ -50,6 +50,10 @@ jobs:
             runtime: statemint
           - category: assets
             runtime: westmint
+          - category: bridge-hubs
+            runtime: bridge-hub-kusama
+          - category: bridge-hubs
+            runtime: bridge-hub-rococo
           - category: collectives
             runtime: collectives-polkadot
           - category: contracts
@@ -150,6 +154,8 @@ jobs:
           WESTMINT_DIGEST: ${{ github.workspace}}/westmint-srtool-json/westmint-srtool-digest.json
           STATEMINE_DIGEST: ${{ github.workspace}}/statemine-srtool-json/statemine-srtool-digest.json
           STATEMINT_DIGEST: ${{ github.workspace}}/statemint-srtool-json/statemint-srtool-digest.json
+          BRIDGE_HUB_ROCOCO_DIGEST: ${{ github.workspace}}/bridge-hub-rococo-srtool-json/bridge-hub-rococo-srtool-digest.json
+          BRIDGE_HUB_KUSAMA_DIGEST: ${{ github.workspace}}/bridge-hub-kusama-srtool-json/bridge-hub-kusama-srtool-digest.json
           COLLECTIVES_POLKADOT_DIGEST: ${{ github.workspace}}/collectives-polkadot-srtool-json/collectives-polkadot-srtool-digest.json
           ROCOCO_PARA_DIGEST: ${{ github.workspace}}/rococo-parachain-srtool-json/rococo-parachain-srtool-digest.json
           CANVAS_KUSAMA_DIGEST: ${{ github.workspace}}/contracts-rococo-srtool-json/contracts-rococo-srtool-digest.json
@@ -165,6 +171,8 @@ jobs:
             ls -al $WESTMINT_DIGEST || true
             ls -al $STATEMINE_DIGEST || true
             ls -al $STATEMINT_DIGEST || true
+            ls -al $BRIDGE_HUB_ROCOCO_DIGEST || true
+            ls -al $BRIDGE_HUB_KUSAMA_DIGEST || true
             ls -al $COLLECTIVES_POLKADOT_DIGEST || true
             ls -al $ROCOCO_PARA_DIGEST || true
             ls -al $CANVAS_KUSAMA_DIGEST || true
@@ -216,6 +224,10 @@ jobs:
             runtime: statemint
           - category: assets
             runtime: westmint
+          - category: bridge-hubs
+            runtime: bridge-hub-kusama
+          - category: bridge-hubs
+            runtime: bridge-hub-rococo
           - category: collectives
             runtime: collectives-polkadot
           - category: contracts

.github/workflows/srtool.yml

@@ -37,6 +37,10 @@ jobs:
             runtime: statemint
           - category: assets
             runtime: westmint
+          - category: bridge-hubs
+            runtime: bridge-hub-kusama
+          - category: bridge-hubs
+            runtime: bridge-hub-rococo
           - category: collectives
             runtime: collectives-polkadot
           - category: contracts

Cargo.toml

@@ -38,6 +38,8 @@ members = [
 	"parachains/runtimes/assets/statemint",
 	"parachains/runtimes/assets/statemine",
 	"parachains/runtimes/assets/westmint",
+	"parachains/runtimes/bridge-hubs/bridge-hub-rococo",
+	"parachains/runtimes/bridge-hubs/bridge-hub-kusama",
 	"parachains/runtimes/collectives/collectives-polkadot",
 	"parachains/runtimes/contracts/contracts-rococo",
 	"parachains/runtimes/testing/penpal",

README.md

@@ -144,6 +144,10 @@ Refer to the [setup instructions](#local-setup) to run a local network for devel
 
 See [the `contracts-rococo` readme](parachains/runtimes/contracts/contracts-rococo/README.md) for details.
 
+## Bridge-hub 📝
+
+See [the `bridge-hubs` readme](parachains/runtimes/bridge-hubs/README.md) for details.
+
 ## Rococo 👑
 
 [Rococo](https://polkadot.js.org/apps/?rpc=wss://rococo-rpc.polkadot.io) is becoming a [Community Parachain Testbed](https://polkadot.network/blog/rococo-revamp-becoming-a-community-parachain-testbed/) for parachain teams in the Polkadot ecosystem. It supports multiple parachains with the differentiation of long-term connections and recurring short-term connections, to see which parachains are currently connected and how long they will be connected for [see here](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-rpc.polkadot.io#/parachains).

pallets/collator-selection/src/mock.rs

@@ -17,7 +17,7 @@ use super::*;
 use crate as collator_selection;
 use frame_support::{
 	ord_parameter_types, parameter_types,
-	traits::{FindAuthor, GenesisBuild, ValidatorRegistration},
+	traits::{ConstU32, ConstU64, FindAuthor, GenesisBuild, ValidatorRegistration},
 	PalletId,
 };
 use frame_system as system;
@@ -115,20 +115,16 @@ impl pallet_authorship::Config for Test {
 	type EventHandler = CollatorSelection;
 }
 
-parameter_types! {
-	pub const MinimumPeriod: u64 = 1;
-}
-
 impl pallet_timestamp::Config for Test {
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	type MinimumPeriod = MinimumPeriod;
+	type MinimumPeriod = ConstU64<1>;
 	type WeightInfo = ();
 }
 
 impl pallet_aura::Config for Test {
 	type AuthorityId = sp_consensus_aura::sr25519::AuthorityId;
-	type MaxAuthorities = MaxAuthorities;
+	type MaxAuthorities = ConstU32<100_000>;
 	type DisabledValidators = ();
 }
 
@@ -192,7 +188,6 @@ parameter_types! {
 	pub const MaxCandidates: u32 = 20;
 	pub const MaxInvulnerables: u32 = 20;
 	pub const MinCandidates: u32 = 1;
-	pub const MaxAuthorities: u32 = 100_000;
 }
 
 pub struct IsRegistered;

parachain-template/runtime/src/lib.rs

@@ -29,7 +29,7 @@ use frame_support::{
 	construct_runtime,
 	dispatch::DispatchClass,
 	parameter_types,
-	traits::Everything,
+	traits::{ConstU32, ConstU64, ConstU8, Everything},
 	weights::{
 		constants::WEIGHT_PER_SECOND, ConstantMultiplier, Weight, WeightToFeeCoefficient,
 		WeightToFeeCoefficients, WeightToFeePolynomial,
@@ -309,37 +309,27 @@ impl frame_system::Config for Runtime {
 	type MaxConsumers = frame_support::traits::ConstU32<16>;
 }
 
-parameter_types! {
-	pub const MinimumPeriod: u64 = SLOT_DURATION / 2;
-}
-
 impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	type MinimumPeriod = MinimumPeriod;
+	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = ();
 }
 
-parameter_types! {
-	pub const UncleGenerations: u32 = 0;
-}
-
 impl pallet_authorship::Config for Runtime {
 	type FindAuthor = pallet_session::FindAccountFromAuthorIndex<Self, Aura>;
-	type UncleGenerations = UncleGenerations;
+	type UncleGenerations = ConstU32<0>;
 	type FilterUncle = ();
 	type EventHandler = (CollatorSelection,);
 }
 
 parameter_types! {
 	pub const ExistentialDeposit: Balance = EXISTENTIAL_DEPOSIT;
-	pub const MaxLocks: u32 = 50;
-	pub const MaxReserves: u32 = 50;
 }
 
 impl pallet_balances::Config for Runtime {
-	type MaxLocks = MaxLocks;
+	type MaxLocks = ConstU32<50>;
 	/// The type for recording an account's balance.
 	type Balance = Balance;
 	/// The ubiquitous event type.
@@ -348,14 +338,13 @@ impl pallet_balances::Config for Runtime {
 	type ExistentialDeposit = ExistentialDeposit;
 	type AccountStore = System;
 	type WeightInfo = pallet_balances::weights::SubstrateWeight<Runtime>;
-	type MaxReserves = MaxReserves;
+	type MaxReserves = ConstU32<50>;
 	type ReserveIdentifier = [u8; 8];
 }
 
 parameter_types! {
 	/// Relay Chain `TransactionByteFee` / 10
 	pub const TransactionByteFee: Balance = 10 * MICROUNIT;
-	pub const OperationalFeeMultiplier: u8 = 5;
 }
 
 impl pallet_transaction_payment::Config for Runtime {
@@ -364,7 +353,7 @@ impl pallet_transaction_payment::Config for Runtime {
 	type WeightToFee = WeightToFee;
 	type LengthToFee = ConstantMultiplier<Balance, TransactionByteFee>;
 	type FeeMultiplierUpdate = SlowAdjustingFeeUpdate<Self>;
-	type OperationalFeeMultiplier = OperationalFeeMultiplier;
+	type OperationalFeeMultiplier = ConstU8<5>;
 }
 
 parameter_types! {
@@ -408,7 +397,6 @@ impl cumulus_pallet_dmp_queue::Config for Runtime {
 parameter_types! {
 	pub const Period: u32 = 6 * HOURS;
 	pub const Offset: u32 = 0;
-	pub const MaxAuthorities: u32 = 100_000;
 }
 
 impl pallet_session::Config for Runtime {
@@ -419,7 +407,7 @@ impl pallet_session::Config for Runtime {
 	type ShouldEndSession = pallet_session::PeriodicSessions<Period, Offset>;
 	type NextSessionRotation = pallet_session::PeriodicSessions<Period, Offset>;
 	type SessionManager = CollatorSelection;
-	// Essentially just Aura, but lets be pedantic.
+	// Essentially just Aura, but let's be pedantic.
 	type SessionHandler = <SessionKeys as sp_runtime::traits::OpaqueKeys>::KeyTypeIdProviders;
 	type Keys = SessionKeys;
 	type WeightInfo = ();
@@ -428,7 +416,7 @@ impl pallet_session::Config for Runtime {
 impl pallet_aura::Config for Runtime {
 	type AuthorityId = AuraId;
 	type DisabledValidators = ();
-	type MaxAuthorities = MaxAuthorities;
+	type MaxAuthorities = ConstU32<100_000>;
 }
 
 parameter_types! {

parachains/chain-specs/bridge-hub-kusama.json

@@ -0,0 +1 @@
+TODO: setup