Impossible to create NFV workers

4.15 (current master)

I1024 02:36:28.388445       1 controller.go:156] sj6vp0y3-56ae0-2f4wl-worker-0-ph4nw: reconciling Machine
I1024 02:36:29.068382       1 controller.go:349] sj6vp0y3-56ae0-2f4wl-worker-0-ph4nw: reconciling machine triggers idempotent create
I1024 02:36:31.426442       1 controller.go:115]  "msg"="Observed a panic in reconciler: runtime error: invalid memory address or nil pointer dereference" "controller"="machine-controller" "name"="sj6vp0y3-56ae0-2f4wl-worker-0-ph4nw" "namespace"="openshift-machine-api" "object"={"name":"sj6vp0y3-56ae0-2f4wl-worker-0-ph4nw","namespace":"openshift-machine-api"} "reconcileID"="1041b0ba-067a-4e94-8a2a-f71f46821275"
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=0x1 addr=0x8 pc=0x27c49ff]

goroutine 247 [running]:
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile.func1()
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:116 +0x1fa
panic({0x2a72f60, 0x430deb0})
	/usr/lib/golang/src/runtime/panic.go:884 +0x213
github.com/openshift/machine-api-provider-openstack/pkg/machine.MachineToInstanceSpec(0xc0006698c0, {0xc000a49940, 0x1, 0x4}, {0xc000a49980, 0x1, 0x4}, {0xc00029aa00, 0x6a6}, {0x30ab820, ...}, ...)
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/pkg/machine/convert.go:317 +0xb9f
github.com/openshift/machine-api-provider-openstack/pkg/machine.(*OpenstackClient).convertMachineToCapoInstanceSpec(0xc0000f11f0, {0x30cb3b0, 0xc000c50b80}, 0xc0006698c0)
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/pkg/machine/actuator.go:157 +0x23b
github.com/openshift/machine-api-provider-openstack/pkg/machine.(*OpenstackClient).createInstance(0xc0000f11f0, {0xc000c50b80?, 0xc00072a1b0?}, 0xc0006698c0, {0x30cb3b0, 0xc000c50b80})
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/pkg/machine/actuator.go:246 +0x137
github.com/openshift/machine-api-provider-openstack/pkg/machine.(*OpenstackClient).reconcile(0xc0000f11f0, {0x30c5530, 0xc00072a1b0}, 0xc0006698c0)
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/pkg/machine/actuator.go:201 +0x23e
github.com/openshift/machine-api-provider-openstack/pkg/machine.(*OpenstackClient).Create(0xc000a42150?, {0x30c5530?, 0xc00072a1b0?}, 0x0?)
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/pkg/machine/actuator.go:172 +0x25
github.com/openshift/machine-api-operator/pkg/controller/machine.(*ReconcileMachine).Reconcile(0xc0002ab6d0, {0x30c5530, 0xc00072a1b0}, {{{0xc000c90a50?, 0x0?}, {0xc0000014a0?, 0xc00087bd48?}}})
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/vendor/github.com/openshift/machine-api-operator/pkg/controller/machine/controller.go:350 +0xbb8
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Reconcile(0x30c9578?, {0x30c5530?, 0xc00072a1b0?}, {{{0xc000c90a50?, 0xb?}, {0xc0000014a0?, 0x0?}}})
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:119 +0xc8
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).reconcileHandler(0xc000322a00, {0x30c5488, 0xc00028e2d0}, {0x2b57480?, 0xc0000e64c0?})
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:316 +0x3ca
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).processNextWorkItem(0xc000322a00, {0x30c5488, 0xc00028e2d0})
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:266 +0x1d9
sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2()
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:227 +0x85
created by sigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2
	/go/src/sigs.k8s.io/cluster-api-provider-openstack/vendor/sigs.k8s.io/controller-runtime/pkg/internal/controller/controller.go:223 +0x587

It should work