fix dynconfig with nodeSets panic error

[kobzonega]

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

process panic error with usage dynconfig inside .spec.configuration and nodeSet

2024-10-01T12:28:46Z	INFO	Observed a panic in reconciler: invalid argument to Intn	{"controller": "storage", "controllerGroup": "ydb.tech", "controllerKind": "Storage", "Storage": {"name":"s-c0ftkh5nihim1ivcopu1","namespace":"ydb-cluster-c0ftkh5nihim1ivcopu1"}, "namespace": "ydb-cluster-c0ftkh5nihim1ivcopu1", "name": "s-c0ftkh5nihim1ivcopu1", "reconcileID": "545dfc05-5e8e-4e34-9465-6e7659b58ae8"}
panic: invalid argument to Intn [recovered]
	panic: invalid argument to Intn

goroutine 700 [running]:
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile.func1()
	/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.1/pkg/internal/controller/controller.go:119 +0x1fa
panic({0x1a93420, 0x20d0ef0})
	/usr/local/go/src/runtime/panic.go:884 +0x213
math/rand.(*Rand).Intn(0xc000f14000?, 0x53?)
	/usr/local/go/src/math/rand/rand.go:179 +0x65
math/rand.Intn(...)
	/usr/local/go/src/math/rand/rand.go:358
github.com/ydb-platform/ydb-kubernetes-operator/api/v1alpha1.(*Storage).GetHostFromConfigEndpoint(0xc001f06840?)
	/workspace/api/v1alpha1/storage_webhook.go:70 +0xa5
github.com/ydb-platform/ydb-kubernetes-operator/api/v1alpha1.(*Storage).GetStorageEndpoint(0xc001f06840)
	/workspace/api/v1alpha1/storage_webhook.go:50 +0x65
github.com/ydb-platform/ydb-kubernetes-operator/api/v1alpha1.(*Storage).GetStorageEndpointWithProto(0xc0032086c0?)
	/workspace/api/v1alpha1/storage_webhook.go:35 +0x65
github.com/ydb-platform/ydb-kubernetes-operator/internal/controllers/storage.(*Reconciler).setConfigPipelineStatus(0xc00055a9b0, {0x20f2b40, 0xc002b2d980}, 0xc00058c370)
	/workspace/internal/controllers/storage/config.go:187 +0x225
github.com/ydb-platform/ydb-kubernetes-operator/internal/controllers/storage.(*Reconciler).Sync(0x0?, {0x20f2b40, 0xc002b2d980}, 0x0?)
	/workspace/internal/controllers/storage/sync.go:55 +0x305
github.com/ydb-platform/ydb-kubernetes-operator/internal/controllers/storage.(*Reconciler).Reconcile(0xc00055a9b0, {0x20f2b40, 0xc002b2d980}, {{{0xc000059a60?, 0x0?}, {0xc0008538a8?, 0x40de67?}}})
	/workspace/internal/controllers/storage/controller.go:118 +0x4e5
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile(0x20f2b40?, {0x20f2b40?, 0xc002b2d980?}, {{{0xc000059a60?, 0x1a928a0?}, {0xc0008538a8?, 0x40f926?}}})
	/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.1/pkg/internal/controller/controller.go:122 +0xc8
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler(0xc000440be0, {0x20f2a98, 0xc00055a500}, {0x1bdc960?, 0xc0001bcd80?})
	/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.1/pkg/internal/controller/controller.go:323 +0x377
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem(0xc000440be0, {0x20f2a98, 0xc00055a500})
	/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.1/pkg/internal/controller/controller.go:274 +0x1d9
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2()
	/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.1/pkg/internal/controller/controller.go:235 +0x85
created by sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2
	/go/pkg/mod/sigs.k8s.io/controller-runtime@v0.14.1/pkg/internal/controller/controller.go:231 +0x587

What is the new behavior?

• fix error by parse dynconfig inside webhook
• additional test suite to prevent this in feature

Other information