feat(reaper): 未配置世界目录时渲染只清理备份库存的 CronJob，默认安装也每日删除过期备份，安装器与清单生成器说明回收开关状态

cmd/felis/manifests.go

@@ -48,7 +48,7 @@ func cmdManifests(args []string, stdout, stderr io.Writer) int {
 	registryImage := fs.String("registry-image", "", "in-cluster registry image (default: registry 2.8.3, pinned by digest)")
 	backupPVC := fs.String("backup-pvc", "felis-backups", "name of the world-archive PVC this bundle renders in the Minecraft namespace and advertises to the backup/restore executors via FELIS_BACKUP_PVC (default: felis-backups; pass an empty value to render none, leaving backup/restore answering 503)")
 	worldsHostPath := fs.String("worlds-host-path", "", "node directory the reaper reads worlds from: each world PVC resolves as <path>/<pvc>, or as the stock local-path directory <path>/<pv-name>_<ns>_<pvc-name> (k3s storage root: /var/lib/rancher/k3s/storage); enables the reaper CronJob (requires --archive-local-path and a non-empty --backup-pvc)")
-	archiveLocalPath := fs.String("archive-local-path", "", "path the backup PVC is mounted at in the reaper CronJob; MUST equal felis.toml [archive] local_path")
+	archiveLocalPath := fs.String("archive-local-path", "", "path the backup PVC is mounted at in the reaper CronJob; MUST equal felis.toml [archive] local_path. With the backup PVC alone it renders the retention-only CronJob, which deletes backups past their expiry and never touches a world")
 	registryStorage := fs.String("registry-storage", "", "capacity the registry PVC requests (default 10Gi; k3s local-path does not enforce it)")
 	uploadsStorage := fs.String("uploads-storage", "", "capacity the uploads PVC requests (default 5Gi; k3s local-path does not enforce it)")
 	backupStorage := fs.String("backup-storage", "", "capacity the world-archive PVC requests (default 10Gi; k3s local-path does not enforce it)")
@@ -138,8 +138,22 @@ func cmdManifests(args []string, stdout, stderr io.Writer) int {
 			"<path>/<pvc>, or each candidate's archive fails and the world is preserved;\n"+
 			"  - %s.\n", *worldsHostPath, *worldsHostPath, *worldsHostPath, pin)
 	} else {
-		fmt.Fprintln(stderr, "felis manifests: note: retention reaper CronJob not rendered "+
-			"(pass --worlds-host-path and --archive-local-path — the archive PVC defaults to felis-backups — to enable it)")
+		switch {
+		case *archiveLocalPath != "" && *backupPVC == "":
+			fmt.Fprintln(stderr, "felis manifests: --archive-local-path names where the backup PVC is mounted, "+
+				"but --backup-pvc is empty (no archive store renders); drop one or the other")
+			return 2
+		case *archiveLocalPath != "":
+			fmt.Fprintln(stderr, "felis manifests: note: rendering the reaper CronJob retention-only: backups past "+
+				"their expiry are deleted daily, idle worlds are never archived or deleted "+
+				"(pass --worlds-host-path to reap them too)")
+		case *backupPVC != "":
+			fmt.Fprintln(stderr, "felis manifests: note: reaper CronJob not rendered: backups are never expired, so "+
+				"the archive store only grows until the disk fills (pass --archive-local-path, equal to felis.toml "+
+				"[archive] local_path, for the retention-only CronJob, and --worlds-host-path as well to reap idle worlds)")
+		default:
+			fmt.Fprintln(stderr, "felis manifests: note: reaper CronJob not rendered (backups are disabled)")
+		}
 	}
 
 	params := platform.Params{