wip: fix CI failures on Kubernetes 1.35

wait-ceph-ready: also check that at least one OSD is up before
proceeding; with Rook v1.19.5, ceph -s succeeds before OSDs are
ready, causing PVC provisioning to fail.

reconcileAsStandalone/reconcileAsPrimary: add IsSnapshotCaptured()
guard before calling verify(); without it, a controller watching a
backup from a different Ceph cluster (clusterID mismatch) would
attempt to verify with an empty PVCManifest and error.

https://github.com/cybozu-go/mantle/actions/runs/25890739907/job/76093083397?pr=279

Signed-off-by: Kohya Shiozaki <kouyan120706@gmail.com>

Author: skoya76

internal/controller/mantlebackup_controller.go

@@ -447,7 +447,7 @@ func (r *MantleBackupReconciler) reconcileAsStandalone(ctx context.Context, back
 		return result, err
 	}
 
-	if !backup.IsVerifiedTrue() && !backup.IsVerifiedFalse() {
+	if backup.IsSnapshotCaptured() && !backup.IsVerifiedTrue() && !backup.IsVerifiedFalse() {
 		if err := r.verify(ctx, backup); err != nil {
 			return ctrl.Result{}, err
 		}
@@ -464,7 +464,7 @@ func (r *MantleBackupReconciler) reconcileAsPrimary(ctx context.Context, backup
 		return result, err
 	}
 
-	if !backup.IsVerifiedTrue() && !backup.IsVerifiedFalse() {
+	if backup.IsSnapshotCaptured() && !backup.IsVerifiedTrue() && !backup.IsVerifiedFalse() {
 		if err := r.verify(ctx, backup); err != nil {
 			return ctrl.Result{}, err
 		}

test/e2e/Makefile

@@ -216,7 +216,8 @@ install-rook-ceph-cluster2:
 wait-ceph-ready:
 	is_ok="false"; \
 	for ((i=0;i<$(TIMEOUT_SECS);i+=$(POLLING_INTERVAL))); do \
-		$(KUBECTL) -n $(NAMESPACE) exec deploy/rook-ceph-tools -- ceph -s && { \
+		$(KUBECTL) -n $(NAMESPACE) exec deploy/rook-ceph-tools -- ceph -s && \
+		$(KUBECTL) -n $(NAMESPACE) exec deploy/rook-ceph-tools -- ceph osd stat | grep -qE "^[1-9]" && { \
 			echo "ceph -s succeeded in namespace $(NAMESPACE)"; \
 			is_ok="true"; \
 			break; \