upgrade: set val min commission

app/upgrade_handler.go

@@ -6,6 +6,7 @@ import (
 	ibcfeetypes "github.com/cosmos/ibc-go/v7/modules/apps/29-fee/types"
 	alliancetypes "github.com/terra-money/alliance/x/alliance/types"
 	terraappconfig "github.com/terra-money/core/v2/app/config"
+	v2_10 "github.com/terra-money/core/v2/app/upgrades/v2.10"
 	v2_2_0 "github.com/terra-money/core/v2/app/upgrades/v2.2.0"
 	v2_3_0 "github.com/terra-money/core/v2/app/upgrades/v2.3.0"
 	v2_4 "github.com/terra-money/core/v2/app/upgrades/v2.4"
@@ -93,10 +94,11 @@ func (app *TerraApp) RegisterUpgradeHandlers() {
 	)
 	app.Keepers.UpgradeKeeper.SetUpgradeHandler(
 		terraappconfig.Upgrade2_10,
-		v2_9.CreateUpgradeHandler(
+		v2_10.CreateUpgradeHandler(
 			app.GetModuleManager(),
 			app.GetConfigurator(),
 			app.GetAppCodec(),
+			app.Keepers.StakingKeeper,
 		),
 	)
 }

app/upgrades/v2.10/upgrade.go

@@ -4,15 +4,36 @@ import (
 	"github.com/cosmos/cosmos-sdk/codec"
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/types/module"
+	stakingkeeper "github.com/cosmos/cosmos-sdk/x/staking/keeper"
+	stakingtypes "github.com/cosmos/cosmos-sdk/x/staking/types"
 	upgradetypes "github.com/cosmos/cosmos-sdk/x/upgrade/types"
 )
 
 func CreateUpgradeHandler(
 	mm *module.Manager,
 	cfg module.Configurator,
 	cdc codec.Codec,
+	sk *stakingkeeper.Keeper,
 ) upgradetypes.UpgradeHandler {
 	return func(ctx sdk.Context, _ upgradetypes.Plan, fromVM module.VersionMap) (module.VersionMap, error) {
+		// Set commission based on this text proposal
+		// https://station.terra.money/proposal/phoenix-1/4803
+		minCommission := sdk.MustNewDecFromStr("0.05")
+		stakingParams := sk.GetParams(ctx)
+		stakingParams.MinCommissionRate = minCommission
+		err := sk.SetParams(ctx, stakingParams)
+		if err != nil {
+			return nil, err
+		}
+
+		sk.IterateValidators(ctx, func(index int64, validator stakingtypes.ValidatorI) (stop bool) {
+			if validator.GetCommission().LT(minCommission) {
+				val := validator.(stakingtypes.Validator)
+				sk.UpdateValidatorCommission(ctx, val, minCommission)
+			}
+			return false
+		})
+
 		return mm.RunMigrations(ctx, cfg, fromVM)
 	}
 }