Added output message to warn about slower deployments with apps

bundle/apps/validate.go

@@ -7,6 +7,7 @@ import (
 	"strings"
 
 	"github.com/databricks/cli/bundle"
+	"github.com/databricks/cli/libs/cmdio"
 	"github.com/databricks/cli/libs/diag"
 )
 
@@ -17,6 +18,10 @@ func (v *validate) Apply(ctx context.Context, b *bundle.Bundle) diag.Diagnostics
 	possibleConfigFiles := []string{"app.yml", "app.yaml"}
 	usedSourceCodePaths := make(map[string]string)
 
+	if len(b.Config.Resources.Apps) > 0 {
+		cmdio.LogString(ctx, "Databricks apps in your bundle can slow initial deployment as they wait for compute provisioning.")
+	}
+
 	for key, app := range b.Config.Resources.Apps {
 		if _, ok := usedSourceCodePaths[app.SourceCodePath]; ok {
 			diags = append(diags, diag.Diagnostic{