Allow region change if no deployed resources

cmd/klotho/dependencies.go

@@ -4,12 +4,13 @@ import (
 	"context"
 	"errors"
 	"fmt"
-	"github.com/klothoplatform/klotho/pkg/logging"
 	"os"
 	"os/exec"
 	"path/filepath"
 	"runtime"
 
+	"github.com/klothoplatform/klotho/pkg/logging"
+
 	pulumi "github.com/pulumi/pulumi/sdk/v3"
 	"github.com/pulumi/pulumi/sdk/v3/go/auto"
 )
@@ -95,8 +96,8 @@ func installPulumi(ctx context.Context) error {
 }
 
 func isDockerInstalled() bool {
-	// Check if docker is installed
-	cmd := exec.Command("docker", "--version")
+	// Check if docker is installed and the daemon is running
+	cmd := exec.Command("docker", "ps")
 	err := cmd.Run()
 	return err == nil
 }

pkg/k2/orchestration/orchestrator.go

@@ -87,7 +87,15 @@ func (o *Orchestrator) resolveInitialState(ir *model.ApplicationEnvironment) (ma
 
 	// Check for default region mismatch
 	if state.DefaultRegion != ir.DefaultRegion {
-		return nil, fmt.Errorf("default region mismatch: %s != %s", state.DefaultRegion, ir.DefaultRegion)
+		deployed := make(map[string]model.ConstructStatus)
+		for k, v := range state.Constructs {
+			if model.IsDeletable(v.Status) {
+				deployed[k] = v.Status
+			}
+		}
+		if len(deployed) > 0 {
+			return nil, fmt.Errorf("cannot change region (%s -> %s) with deployed resources: %v", state.DefaultRegion, ir.DefaultRegion, deployed)
+		}
 	}
 
 	// Check for schema version mismatch