add maintenance mode

internal/httpapp/app.go

@@ -13,6 +13,7 @@ import (
 	"gitea.avt.data-center.id/othman.suseno/atlas/internal/backup"
 	"gitea.avt.data-center.id/othman.suseno/atlas/internal/db"
 	"gitea.avt.data-center.id/othman.suseno/atlas/internal/job"
+	"gitea.avt.data-center.id/othman.suseno/atlas/internal/maintenance"
 	"gitea.avt.data-center.id/othman.suseno/atlas/internal/metrics"
 	"gitea.avt.data-center.id/othman.suseno/atlas/internal/services"
 	"gitea.avt.data-center.id/othman.suseno/atlas/internal/snapshot"
@@ -28,26 +29,27 @@ type Config struct {
 }
 
 type App struct {
-	cfg              Config
-	tmpl             *template.Template
-	mux              *http.ServeMux
-	zfs              *zfs.Service
-	snapshotPolicy   *snapshot.PolicyStore
-	jobManager       *job.Manager
-	scheduler        *snapshot.Scheduler
-	authService      *auth.Service
-	userStore        *auth.UserStore
-	auditStore       *audit.Store
-	smbStore         *storage.SMBStore
-	nfsStore         *storage.NFSStore
-	iscsiStore       *storage.ISCSIStore
-	database         *db.DB // Optional database connection
-	smbService       *services.SMBService
-	nfsService       *services.NFSService
-	iscsiService     *services.ISCSIService
-	metricsCollector *metrics.Collector
-	startTime        time.Time
-	backupService    *backup.Service
+	cfg                Config
+	tmpl               *template.Template
+	mux                *http.ServeMux
+	zfs                *zfs.Service
+	snapshotPolicy     *snapshot.PolicyStore
+	jobManager         *job.Manager
+	scheduler          *snapshot.Scheduler
+	authService        *auth.Service
+	userStore          *auth.UserStore
+	auditStore         *audit.Store
+	smbStore           *storage.SMBStore
+	nfsStore           *storage.NFSStore
+	iscsiStore         *storage.ISCSIStore
+	database           *db.DB // Optional database connection
+	smbService         *services.SMBService
+	nfsService         *services.NFSService
+	iscsiService       *services.ISCSIService
+	metricsCollector   *metrics.Collector
+	startTime          time.Time
+	backupService      *backup.Service
+	maintenanceService *maintenance.Service
 }
 
 func New(cfg Config) (*App, error) {
@@ -154,7 +156,8 @@ func (a *App) Router() http.Handler {
 	// 10. Logging
 	// 11. Audit
 	// 12. Authentication
-	// 13. Routes
+	// 13. Maintenance mode (blocks operations during maintenance)
+	// 14. Routes
 	return a.corsMiddleware(
 		a.compressionMiddleware(
 			a.securityHeadersMiddleware(
@@ -166,7 +169,9 @@ func (a *App) Router() http.Handler {
 									requestID(
 										logging(
 											a.auditMiddleware(
-												a.authMiddleware(a.mux),
+												a.maintenanceMiddleware(
+													a.authMiddleware(a.mux),
+												),
 											),
 										),
 									),