Introduce OpenGov into Cere and CereDev (#238)

### Description
Enabling the
[OpenGov](https://wiki.polkadot.network/docs/learn-polkadot-opengov).

<!-- Describe what change this PR is implementing -->

### Types of Changes
<!--- What types of changes does your code introduce? -->
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [x] Breaking change (fix or feature that would cause existing
functionality to change)
- [x] Dependency upgrade (A change in substrate or any 3rd party crate
version)

### Migrations and Hooks
<!--- Check the following box with an x if the following applies: -->
- [x] This change requires a runtime migration.
- [ ] Modifies `on_initialize`
- [ ] Modifies `on_finalize`

### Checklist
<!--- All boxes need to be checked. Follow this checklist before
requiring PR review -->
- [x] Change has been tested locally.
- [x] Change adds / updates tests.
- [x] Changelog doc updated.

CHANGELOG.md

@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - [C,D] Updated Substrate to polkadot-v1.1.0
+- [C,D] Introduction of the OpenGov
 
 ## [5.2.0]
 

Cargo.toml

@@ -101,6 +101,9 @@ pallet-transaction-payment-rpc-runtime-api = { git = "https://github.com/parityt
 pallet-treasury = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.1.0", default-features = false }
 pallet-utility = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.1.0", default-features = false }
 pallet-vesting = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.1.0", default-features = false }
+pallet-conviction-voting = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.1.0", default-features = false }
+pallet-referenda = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.1.0", default-features = false }
+pallet-whitelist = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.1.0", default-features = false }
 sc-authority-discovery = { git = "https://github.com/paritytech/polkadot-sdk.git", tag = "polkadot-v1.1.0", default-features = false }
 sc-basic-authorship = { git = "https://github.com/paritytech/polkadot-sdk", tag = "polkadot-v1.1.0", default-features = false }
 sc-chain-spec = { git = "https://github.com/paritytech/polkadot-sdk", tag = "polkadot-v1.1.0", default-features = false }

node/cli/src/command.rs

@@ -1,4 +1,4 @@
-use cere_service::{self, IdentifyVariant};
+use cere_service::IdentifyVariant;
 use frame_benchmarking_cli::{BenchmarkCmd, SUBSTRATE_REFERENCE_HARDWARE};
 use sc_cli::{Error, SubstrateCli};
 use sc_service::error::Error as ServiceError;

node/service/src/chain_spec.rs

@@ -157,8 +157,6 @@ pub fn cere_dev_genesis(
 		}))
 		.collect::<Vec<_>>();
 
-	let num_endowed_accounts = endowed_accounts.len();
-
 	const ENDOWMENT: Balance = 10_000_000_000 * TEST_UNITS;
 	const STASH: Balance = ENDOWMENT / 1000;
 
@@ -194,24 +192,6 @@ pub fn cere_dev_genesis(
 			..Default::default()
 		},
 		ddc_staking: cere_dev::DdcStakingConfig::default(),
-		democracy: cere_dev::DemocracyConfig::default(),
-		elections: cere_dev::ElectionsConfig {
-			members: endowed_accounts
-				.iter()
-				.take((num_endowed_accounts + 1) / 2)
-				.cloned()
-				.map(|member| (member, STASH))
-				.collect(),
-		},
-		council: cere_dev::CouncilConfig::default(),
-		technical_committee: cere_dev::TechnicalCommitteeConfig {
-			members: endowed_accounts
-				.iter()
-				.take((num_endowed_accounts + 1) / 2)
-				.cloned()
-				.collect(),
-			phantom: Default::default(),
-		},
 		sudo: cere_dev::SudoConfig { key: Some(root_key) },
 		babe: cere_dev::BabeConfig {
 			authorities: Default::default(),
@@ -224,7 +204,6 @@ pub fn cere_dev_genesis(
 			..Default::default()
 		},
 		grandpa: Default::default(),
-		technical_membership: Default::default(),
 		treasury: Default::default(),
 		vesting: Default::default(),
 		transaction_payment: Default::default(),

node/service/src/lib.rs

@@ -11,7 +11,7 @@ pub use cere_dev_runtime;
 pub use cere_runtime;
 use futures::prelude::*;
 use sc_client_api::{Backend, BlockBackend};
-use sc_consensus_babe::{self, SlotProportion};
+use sc_consensus_babe::SlotProportion;
 pub use sc_executor::NativeExecutionDispatch;
 use sc_network::{Event, NetworkEventStream};
 use sc_service::{

pallets/ddc-staking/src/lib.rs

@@ -38,7 +38,6 @@ use frame_support::{
 	pallet_prelude::*,
 	parameter_types,
 	traits::{Currency, DefensiveSaturating, LockIdentifier, LockableCurrency, WithdrawReasons},
-	BoundedVec,
 };
 use frame_system::pallet_prelude::*;
 pub use pallet::*;

runtime/cere-dev/Cargo.toml

@@ -39,6 +39,7 @@ pallet-child-bounties = { workspace = true }
 pallet-collective = { workspace = true }
 pallet-contracts = { workspace = true }
 pallet-contracts-primitives = { workspace = true }
+pallet-conviction-voting = { workspace = true }
 pallet-democracy = { workspace = true }
 pallet-election-provider-multi-phase = { workspace = true }
 pallet-election-provider-support-benchmarking = { workspace = true, optional = true }
@@ -59,6 +60,7 @@ pallet-offences-benchmarking = { workspace = true, optional = true }
 pallet-preimage = { workspace = true }
 pallet-proxy = { workspace = true }
 pallet-recovery = { workspace = true }
+pallet-referenda = { workspace = true }
 pallet-scheduler = { workspace = true }
 pallet-session = { workspace = true, features = ["historical"] }
 pallet-session-benchmarking = { workspace = true, optional = true }
@@ -72,7 +74,9 @@ pallet-transaction-payment-rpc-runtime-api = { workspace = true }
 pallet-treasury = { workspace = true }
 pallet-utility = { workspace = true }
 pallet-vesting = { workspace = true }
+pallet-whitelist = { workspace = true }
 sp-api = { workspace = true }
+sp-arithmetic = { workspace = true }
 sp-authority-discovery = { workspace = true }
 sp-block-builder = { workspace = true }
 sp-consensus-babe = { workspace = true }
@@ -182,6 +186,10 @@ std = [
   "pallet-ddc-clusters/std",
   "pallet-ddc-payouts/std",
   "cere-runtime-common/std",
+  "sp-arithmetic/std",
+  "pallet-conviction-voting/std",
+  "pallet-referenda/std",
+  "pallet-whitelist/std",
 ]
 runtime-benchmarks = [
   "frame-benchmarking/runtime-benchmarks",
@@ -228,6 +236,9 @@ runtime-benchmarks = [
   "pallet-chainbridge/runtime-benchmarks",
   "ddc-primitives/runtime-benchmarks",
   "hex-literal",
+  "pallet-conviction-voting/runtime-benchmarks",
+  "pallet-referenda/runtime-benchmarks",
+  "pallet-whitelist/runtime-benchmarks",
 ]
 try-runtime = [
   "frame-executive/try-runtime",
@@ -276,4 +287,7 @@ try-runtime = [
   "pallet-ddc-staking/try-runtime",
   "pallet-erc20/try-runtime",
   "pallet-erc721/try-runtime",
+  "pallet-conviction-voting/try-runtime",
+  "pallet-referenda/try-runtime",
+  "pallet-whitelist/try-runtime",
 ]

runtime/cere-dev/src/governance/mod.rs

@@ -0,0 +1,70 @@
+use frame_support::parameter_types;
+use frame_system::EnsureRootWithSuccess;
+
+use super::*;
+
+mod origins;
+pub use origins::{
+	pallet_custom_origins, GeneralAdmin, ReferendumCanceller, ReferendumKiller, Spender,
+	StakingAdmin, Treasurer, WhitelistedCaller,
+};
+mod tracks;
+pub use tracks::TracksInfo;
+
+parameter_types! {
+	pub const VoteLockingPeriod: BlockNumber = 7 * DAYS;
+}
+
+impl pallet_conviction_voting::Config for Runtime {
+	type WeightInfo = pallet_conviction_voting::weights::SubstrateWeight<Runtime>;
+	type RuntimeEvent = RuntimeEvent;
+	type Currency = Balances;
+	type VoteLockingPeriod = VoteLockingPeriod;
+	type MaxVotes = ConstU32<512>;
+	type MaxTurnout =
+		frame_support::traits::tokens::currency::ActiveIssuanceOf<Balances, Self::AccountId>;
+	type Polls = Referenda;
+}
+
+parameter_types! {
+	pub const AlarmInterval: BlockNumber = 1;
+	pub const SubmissionDeposit: Balance = DOLLARS;
+	pub const UndecidingTimeout: BlockNumber = 14 * DAYS;
+}
+
+parameter_types! {
+	pub const MaxBalance: Balance = Balance::max_value();
+}
+
+pub type TreasurySpender = EitherOf<EnsureRootWithSuccess<AccountId, MaxBalance>, Spender>;
+
+impl origins::pallet_custom_origins::Config for Runtime {}
+
+impl pallet_whitelist::Config for Runtime {
+	type WeightInfo = pallet_whitelist::weights::SubstrateWeight<Runtime>;
+	type RuntimeCall = RuntimeCall;
+	type RuntimeEvent = RuntimeEvent;
+	type WhitelistOrigin = EnsureRoot<Self::AccountId>;
+	type DispatchWhitelistedOrigin = EitherOf<EnsureRoot<Self::AccountId>, WhitelistedCaller>;
+	type Preimages = Preimage;
+}
+
+impl pallet_referenda::Config for Runtime {
+	type WeightInfo = pallet_referenda::weights::SubstrateWeight<Runtime>;
+	type RuntimeCall = RuntimeCall;
+	type RuntimeEvent = RuntimeEvent;
+	type Scheduler = Scheduler;
+	type Currency = Balances;
+	type SubmitOrigin = frame_system::EnsureSigned<AccountId>;
+	type CancelOrigin = EitherOf<EnsureRoot<AccountId>, ReferendumCanceller>;
+	type KillOrigin = EitherOf<EnsureRoot<AccountId>, ReferendumKiller>;
+	type Slash = Treasury;
+	type Votes = pallet_conviction_voting::VotesOf<Runtime>;
+	type Tally = pallet_conviction_voting::TallyOf<Runtime>;
+	type SubmissionDeposit = SubmissionDeposit;
+	type MaxQueued = ConstU32<100>;
+	type UndecidingTimeout = UndecidingTimeout;
+	type AlarmInterval = AlarmInterval;
+	type Tracks = TracksInfo;
+	type Preimages = Preimage;
+}