still fixing UI issue

internal/httpapp/api_handlers.go

@@ -7,6 +7,7 @@ import (
 	"net/http"
 	"strconv"
 	"strings"
+	"time"
 
 	"gitea.avt.data-center.id/othman.suseno/atlas/internal/auth"
 	"gitea.avt.data-center.id/othman.suseno/atlas/internal/errors"
@@ -78,14 +79,21 @@ func (a *App) handleCreatePool(w http.ResponseWriter, r *http.Request) {
 
 	err := a.zfs.CreatePool(req.Name, req.VDEVs, req.Options)
 
-	// Always check if pool exists, even if creation reported an error
-	// Sometimes pool is created despite errors (e.g., mountpoint issues)
+	// CRITICAL: Always check if pool exists, regardless of reported error
+	// ZFS often reports mountpoint errors but pool is still created
+	// Wait a brief moment for pool to be fully registered
+	time.Sleep(200 * time.Millisecond)
+
 	pool, getErr := a.zfs.GetPool(req.Name)
 	if getErr == nil {
-		// Pool exists - return success even if creation reported an error
+		// Pool exists - this is success!
 		if err != nil {
-			log.Printf("create pool reported error but pool exists: %v", err)
+			log.Printf("info: pool %s created successfully despite reported error: %v", req.Name, err)
 		}
+		// Set cache-control headers
+		w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
+		w.Header().Set("Pragma", "no-cache")
+		w.Header().Set("Expires", "0")
 		writeJSON(w, http.StatusCreated, pool)
 		return
 	}

internal/zfs/service.go

@@ -212,7 +212,13 @@ func (s *Service) CreatePool(name string, vdevs []string, options map[string]str
 		options["canmount"] = "noauto"
 	}
 
-	// Add options
+	// IMPORTANT: Don't set mountpoint during pool creation
+	// ZFS tries to mount immediately during creation, which can fail
+	// We'll set mountpoint after pool is created
+	mountpointOption := options["mountpoint"]
+	delete(options, "mountpoint") // Remove from options temporarily
+
+	// Add remaining options
 	for k, v := range options {
 		args = append(args, "-o", fmt.Sprintf("%s=%s", k, v))
 	}
@@ -220,33 +226,41 @@ func (s *Service) CreatePool(name string, vdevs []string, options map[string]str
 	args = append(args, name)
 	args = append(args, vdevs...)
 
-	// Create the pool
+	// Create the pool (without mountpoint to avoid mount errors)
 	_, err := s.execCommand(s.zpoolPath, args...)
 
-	// Even if creation reports an error, check if pool actually exists
-	// Sometimes ZFS reports errors but pool is still created
-	if err != nil {
-		// Check if pool exists despite the error
-		if existingPools, listErr := s.ListPools(); listErr == nil {
-			for _, pool := range existingPools {
-				if pool.Name == name {
-					// Pool exists! Log the original error but don't fail
-					log.Printf("warning: pool creation reported error but pool %s exists: %v", name, err)
-					err = nil // Clear error since pool was created
-					break
-				}
+	// CRITICAL: Always check if pool exists, even if creation reported an error
+	// ZFS often reports mountpoint errors but pool is still created successfully
+	poolExists := false
+	if existingPools, listErr := s.ListPools(); listErr == nil {
+		for _, pool := range existingPools {
+			if pool.Name == name {
+				poolExists = true
+				break
 			}
 		}
-
-		// If pool doesn't exist and we still have an error, return it
-		if err != nil {
-			return err
-		}
 	}
 
-	// Pool created successfully - now try to set mountpoint and mount if needed
-	if mountpoint != "none" {
-		// Set mountpoint property (in case it wasn't set during creation)
+	if poolExists {
+		// Pool exists! This is success, regardless of any reported errors
+		if err != nil {
+			log.Printf("info: pool %s created successfully despite reported error: %v", name, err)
+		}
+		// Clear error since pool was created
+		err = nil
+	} else if err != nil {
+		// Pool doesn't exist and we have an error - return it
+		return err
+	}
+
+	// Pool created successfully - now set mountpoint and mount if needed
+	if mountpoint != "none" && mountpointOption != "" && poolExists {
+		// Ensure mountpoint directory exists
+		if err := s.createMountpointWithSudo(mountpoint); err != nil {
+			log.Printf("warning: failed to create mountpoint %s: %v", mountpoint, err)
+		}
+
+		// Set mountpoint property on the root filesystem of the pool
 		setMountpointArgs := []string{"set", fmt.Sprintf("mountpoint=%s", mountpoint), name}
 		if _, setErr := s.execCommand(s.zfsPath, setMountpointArgs...); setErr != nil {
 			log.Printf("warning: failed to set mountpoint property: %v (pool created but not mounted)", setErr)