Add upgrade handler

app/upgrades.go

@@ -6,6 +6,7 @@ import (
 	storetypes "cosmossdk.io/store/types"
 	servertypes "github.com/cosmos/cosmos-sdk/server/types"
 	"github.com/realiotech/realio-network/app/upgrades/commission"
+	"github.com/realiotech/realio-network/app/upgrades/sdk50"
 
 	upgradetypes "cosmossdk.io/x/upgrade/types"
 )
@@ -20,6 +21,14 @@ func (app *RealioNetwork) setupUpgradeHandlers(appOpts servertypes.AppOptions) {
 		),
 	)
 
+	app.UpgradeKeeper.SetUpgradeHandler(
+		sdk50.UpgradeName,
+		sdk50.CreateUpgradeHandler(
+			app.mm,
+			app.configurator,
+		),
+	)
+
 	upgradeInfo, err := app.UpgradeKeeper.ReadUpgradeInfoFromDisk()
 	if err != nil {
 		panic(fmt.Errorf("failed to read upgrade info from disk: %w", err))

app/upgrades/sdk50/constants.go

@@ -0,0 +1,6 @@
+package sdk50
+
+const (
+	// UpgradeName defines the on-chain upgrade name.
+	UpgradeName = "SDK50"
+)

app/upgrades/sdk50/upgrades.go

@@ -0,0 +1,21 @@
+package sdk50
+
+import (
+	"context"
+
+	upgradetypes "cosmossdk.io/x/upgrade/types"
+	"github.com/cosmos/cosmos-sdk/types/module"
+)
+
+// CreateUpgradeHandler creates an SDK upgrade handler for v2
+func CreateUpgradeHandler(
+	mm *module.Manager,
+	configurator module.Configurator,
+) upgradetypes.UpgradeHandler {
+	return func(ctx context.Context, _ upgradetypes.Plan, vm module.VersionMap) (module.VersionMap, error) {
+		// Refs:
+		// - https://docs.cosmos.network/master/building-modules/upgrade.html#registering-migrations
+		// - https://docs.cosmos.network/master/migrations/chain-upgrade-guide-044.html#chain-upgrade
+		return mm.RunMigrations(ctx, configurator, vm)
+	}
+}