fix: population of the schedulerhostaddress in self-hosted mode (#1475)

* fix: population of the schedulerhostaddress in self-hosted mode

The scheduler host address is pre-populated when using the self-hosted mode multi-app run similarly to the single app run.
Kubernetes multi-app run is not affected and you will still need to specify a scheduler host address.

Signed-off-by: mikeee <hey@mike.ee>

* chore: lint

Signed-off-by: mikeee <hey@mike.ee>

---------

Signed-off-by: mikeee <hey@mike.ee>
Co-authored-by: Yaron Schneider <schneider.yaron@live.com>

cmd/run.go

@@ -524,6 +524,9 @@ func executeRun(runTemplateName, runFilePath string, apps []runfileconfig.App) (
 			exitWithError = true
 			break
 		}
+
+		runConfig.SchedulerHostAddress = validateSchedulerHostAddress(daprVer.RuntimeVersion, runConfig.SchedulerHostAddress)
+
 		// Combined multiwriter for logs.
 		var appDaprdWriter io.Writer
 		// appLogWriter is used when app command is present.
@@ -664,6 +667,17 @@ func executeRunWithAppsConfigFile(runFilePath string, k8sEnabled bool) {
 	}
 }
 
+// populate the scheduler host address based on the dapr version.
+func validateSchedulerHostAddress(version, address string) string {
+	// If no SchedulerHostAddress is supplied, set it to default value.
+	if semver.Compare(fmt.Sprintf("v%v", version), "v1.15.0-rc.0") == 1 {
+		if address == "" {
+			return "localhost:50006"
+		}
+	}
+	return address
+}
+
 func getRunConfigFromRunFile(runFilePath string) (runfileconfig.RunFileConfig, []runfileconfig.App, error) {
 	config := runfileconfig.RunFileConfig{}
 	apps, err := config.GetApps(runFilePath)

cmd/run_test.go

@@ -0,0 +1,19 @@
+package cmd
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestValidateSchedulerHostAddress(t *testing.T) {
+	t.Run("test scheduler host address - v1.14.0-rc.0", func(t *testing.T) {
+		address := validateSchedulerHostAddress("1.14.0-rc.0", "")
+		assert.Equal(t, "", address)
+	})
+
+	t.Run("test scheduler host address - v1.15.0-rc.0", func(t *testing.T) {
+		address := validateSchedulerHostAddress("1.15.0", "")
+		assert.Equal(t, "localhost:50006", address)
+	})
+}