Deleting Cloud Gateway network panics

[pmalek]

goroutine 1653 [running]:
	k8s.io/apimachinery/pkg/util/runtime.logPanic({0x1081b6948, 0x140020bf4d0}, {0x107c9b4a0, 0x1099a0f80})
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/k8s.io/[email protected]/pkg/util/runtime/runtime.go:107 +0xe4
			sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).Reconcile.func1()
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:107 +0x1bc
			panic({0x107c9b4a0?, 0x1099a0f80?})
	/Users/USER/.gvm/gos/go1.23.6/src/runtime/panic.go:785 +0xf0
			github.com/Kong/sdk-konnect-go.(*CloudGateways).DeleteNetwork.func1()
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/github.com/!kong/[email protected]/cloudgateways.go:4256 +0x7c
			github.com/Kong/sdk-konnect-go/internal/utils.Retry.func1()
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/github.com/!kong/[email protected]/internal/utils/retries.go:50 +0x120
			github.com/Kong/sdk-konnect-go/internal/utils.retryWithBackoff({0x1081b6948, 0x140020bf5f0}, 0x14002304a70, 0x14002304908)
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/github.com/!kong/[email protected]/internal/utils/retries.go:121 +0x13c
			github.com/Kong/sdk-konnect-go/internal/utils.Retry({0x1081b6948, 0x140020bf5f0}, {0x14002305650, {0x14002305618, 0x1, 0x1}}, 0x14002305a28)
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/github.com/!kong/[email protected]/internal/utils/retries.go:39 +0x29c
			github.com/Kong/sdk-konnect-go.(*CloudGateways).DeleteNetwork(0x140000d06e0, {0x1081b6948, 0x140020bf5f0}, {0x14000c537d0, 0x24}, {0x0, 0x0, 0x0})
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/github.com/!kong/[email protected]/cloudgateways.go:4249 +0xd64
			github.com/kong/gateway-operator/controller/konnect/ops.deleteKonnectNetwork({0x1081b6948, 0x140020bf5f0}, {0x1081b8ba0, 0x140000d06e0}, 0x14001f81180)
	/Users/USER/code_/gateway-operator/controller/konnect/ops/ops_konnectnetwork.go:52 +0x8c
			github.com/kong/gateway-operator/controller/konnect/ops.Delete[...]({0x1081b6948, 0x140020bf5f0}, {0x1081e45d0, 0x1400196f278}, {0x1081d2040, 0x140004db7a0}, {0x10818d0e8, 0x109a85c80}, 0x14001f81180)
	/Users/USER/code_/gateway-operator/controller/konnect/ops/ops.go:234 +0xde4
			github.com/kong/gateway-operator/controller/konnect.(*KonnectEntityReconciler[...]).Reconcile(0x1081eef00, {0x1081b6948, 0x140020bf5f0}, {{{0x140020e6c96, 0x7}, {0x1400200c7c8, 0x11}}})
	/Users/USER/code_/gateway-operator/controller/konnect/reconciler_generic.go:485 +0x5020
			sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).Reconcile(0x1081e3ce0, {0x1081b6948, 0x140020bf4d0}, {{{0x140020e6c96, 0x7}, {0x1400200c7c8, 0x11}}})
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:118 +0x1a8
			sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).reconcileHandler(0x1081e3ce0, {0x1081b6948, 0x140020bf4d0}, {{{0x140020e6c96, 0x7}, {0x1400200c7c8, 0x11}}})
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:328 +0x370
			sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).processNextWorkItem(0x1081e3ce0, {0x1081b6980, 0x14000499950})
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:288 +0x3bc
			sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).Start.func2.2()
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:249 +0xe8
			created by sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller[...]).Start.func2 in goroutine 596
	/Users/USER/.gvm/pkgsets/go1.23.6/global/pkg/mod/sigs.k8s.io/[email protected]/pkg/internal/controller/controller.go:245 +0xa60

[pmalek]

xref: slack thread https://kongstrong.slack.com/archives/C05MLAA216D/p1738863071903989

Reproduced it with a simple test:

func TestCloudGatewayNetwork(t *testing.T) {
	sdk := SDK(t, GlobalAPI)

	t.Run("Networks", func(t *testing.T) {
		ctx := context.Background()

		respGet, err := sdk.CloudGateways.GetNetwork(ctx, "03fc0cb9-e9ec-49e5-bb2d-b07928bfb47a")
		require.NoError(t, err)
		require.NotNil(t, respGet)

		respDelete, err := sdk.CloudGateways.DeleteNetwork(ctx, respGet.Network.ID)
		require.NoError(t, err)
		require.NotNil(t, respDelete)
	})
}

panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x0 pc=0x10529a54c]

goroutine 36 [running]:
testing.tRunner.func1.2({0x105374aa0, 0x1056068e0})
	/Users/USER/.gvm/gos/go1.23.6/src/testing/testing.go:1632 +0x3c0
testing.tRunner.func1()
	/Users/USER/.gvm/gos/go1.23.6/src/testing/testing.go:1635 +0x57c
panic({0x105374aa0?, 0x1056068e0?})
	/Users/USER/.gvm/gos/go1.23.6/src/runtime/panic.go:785 +0xf0
github.com/Kong/sdk-konnect-go.(*CloudGateways).DeleteNetwork.func1()
	/Users/USER/code_/sdk-konnect-go/cloudgateways.go:4256 +0x7c
github.com/Kong/sdk-konnect-go/internal/utils.Retry.func1()
	/Users/USER/code_/sdk-konnect-go/internal/utils/retries.go:50 +0x120
github.com/Kong/sdk-konnect-go/internal/utils.retryWithBackoff({0x1053e6818, 0x10563ece0}, 0x1400041ac60, 0x1400041aaf8)
	/Users/USER/code_/sdk-konnect-go/internal/utils/retries.go:121 +0x13c
github.com/Kong/sdk-konnect-go/internal/utils.Retry({0x1053e6818, 0x10563ece0}, {0x1400041b840, {0x1400041b808, 0x1, 0x1}}, 0x1400041bc18)
	/Users/USER/code_/sdk-konnect-go/internal/utils/retries.go:39 +0x29c
github.com/Kong/sdk-konnect-go.(*CloudGateways).DeleteNetwork(0x14000121c20, {0x1053e6818, 0x10563ece0}, {0x140000ca390, 0x24}, {0x0, 0x0, 0x0})
	/Users/USER/code_/sdk-konnect-go/cloudgateways.go:4249 +0xd64
github.com/Kong/sdk-konnect-go/test/integration.TestCloudGatewayNetwork.func1(0x1400011eb60)
	/Users/USER/code_/sdk-konnect-go/test/integration/cloudgateway_test.go:160 +0x214
testing.tRunner(0x1400011eb60, 0x1400010b790)
	/Users/USER/.gvm/gos/go1.23.6/src/testing/testing.go:1690 +0x1a8
created by testing.(*T).Run in goroutine 35
	/Users/USER/.gvm/gos/go1.23.6/src/testing/testing.go:1743 +0x668

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