SetMembers configurable origin

bin/node/runtime/src/lib.rs

@@ -995,6 +995,7 @@ impl pallet_collective::Config<CouncilCollective> for Runtime {
 	type MaxMembers = CouncilMaxMembers;
 	type DefaultVote = pallet_collective::PrimeDefaultVote;
 	type WeightInfo = pallet_collective::weights::SubstrateWeight<Runtime>;
+	type SetMembersOrigin = EnsureRoot<Self::AccountId>;
 }
 
 parameter_types! {
@@ -1052,6 +1053,7 @@ impl pallet_collective::Config<TechnicalCollective> for Runtime {
 	type MaxMembers = TechnicalMaxMembers;
 	type DefaultVote = pallet_collective::PrimeDefaultVote;
 	type WeightInfo = pallet_collective::weights::SubstrateWeight<Runtime>;
+	type SetMembersOrigin = EnsureRoot<Self::AccountId>;
 }
 
 type EnsureRootOrHalfCouncil = EitherOfDiverse<
@@ -1648,6 +1650,7 @@ impl pallet_collective::Config<AllianceCollective> for Runtime {
 	type MaxMembers = AllianceMaxMembers;
 	type DefaultVote = pallet_collective::PrimeDefaultVote;
 	type WeightInfo = pallet_collective::weights::SubstrateWeight<Runtime>;
+	type SetMembersOrigin = EnsureRoot<Self::AccountId>;
 }
 
 parameter_types! {

frame/alliance/src/mock.rs

@@ -104,6 +104,7 @@ impl pallet_collective::Config<AllianceCollective> for Test {
 	type MaxMembers = MaxMembers;
 	type DefaultVote = pallet_collective::PrimeDefaultVote;
 	type WeightInfo = ();
+	type SetMembersOrigin = EnsureRoot<Self::AccountId>;
 }
 
 parameter_types! {

frame/collective/src/lib.rs

@@ -215,6 +215,9 @@ pub mod pallet {
 
 		/// Weight information for extrinsics in this pallet.
 		type WeightInfo: WeightInfo;
+
+		/// Origin allowed to set collective members
+		type SetMembersOrigin: EnsureOrigin<<Self as frame_system::Config>::RuntimeOrigin>;
 	}
 
 	#[pallet::genesis_config]
@@ -349,7 +352,7 @@ pub mod pallet {
 		/// - `old_count`: The upper bound for the previous number of members in storage. Used for
 		///   weight estimation.
 		///
-		/// Requires root origin.
+		/// The dispatch of this call must be `SetMembersOrigin`.
 		///
 		/// NOTE: Does not enforce the expected `MaxMembers` limit on the amount of members, but
 		///       the weight estimations rely on it to estimate dispatchable weight.
@@ -389,7 +392,7 @@ pub mod pallet {
 			prime: Option<T::AccountId>,
 			old_count: MemberCount,
 		) -> DispatchResultWithPostInfo {
-			ensure_root(origin)?;
+			T::SetMembersOrigin::ensure_origin(origin)?;
 			if new_members.len() > T::MaxMembers::get() as usize {
 				log::error!(
 					target: LOG_TARGET,

frame/collective/src/tests.rs

@@ -24,7 +24,7 @@ use frame_support::{
 	traits::{ConstU32, ConstU64, GenesisBuild, StorageVersion},
 	Hashable,
 };
-use frame_system::{EventRecord, Phase};
+use frame_system::{EnsureRoot, EventRecord, Phase};
 use sp_core::H256;
 use sp_runtime::{
 	testing::Header,
@@ -127,6 +127,7 @@ impl Config<Instance1> for Test {
 	type MaxMembers = MaxMembers;
 	type DefaultVote = PrimeDefaultVote;
 	type WeightInfo = ();
+	type SetMembersOrigin = EnsureRoot<Self::AccountId>;
 }
 impl Config<Instance2> for Test {
 	type RuntimeOrigin = RuntimeOrigin;
@@ -137,6 +138,7 @@ impl Config<Instance2> for Test {
 	type MaxMembers = MaxMembers;
 	type DefaultVote = MoreThanMajorityThenPrimeDefaultVote;
 	type WeightInfo = ();
+	type SetMembersOrigin = EnsureRoot<Self::AccountId>;
 }
 impl mock_democracy::Config for Test {
 	type RuntimeEvent = RuntimeEvent;
@@ -151,6 +153,7 @@ impl Config for Test {
 	type MaxMembers = MaxMembers;
 	type DefaultVote = PrimeDefaultVote;
 	type WeightInfo = ();
+	type SetMembersOrigin = EnsureRoot<Self::AccountId>;
 }
 
 pub fn new_test_ext() -> sp_io::TestExternalities {

frame/utility/src/tests.rs

@@ -217,6 +217,7 @@ impl pallet_collective::Config<CouncilCollective> for Test {
 	type MaxMembers = MaxMembers;
 	type DefaultVote = pallet_collective::PrimeDefaultVote;
 	type WeightInfo = ();
+	type SetMembersOrigin = frame_system::EnsureRoot<Self::AccountId>;
 }
 
 impl example::Config for Test {}