Implement new setup key resource (#178)

This change implements a new resource called SetupKey that manages the
lifecycle of setup keys and stores them in secrets.

A major change here is that we are also switching to using SSA for
resource management.

Part of #172

Signed-off-by: Philip Laine <philip.laine@gmail.com>

pkg/applyconfigurations/utils.go

@@ -0,0 +1,32 @@
+// Code generated by controller-gen. DO NOT EDIT.
+
+package applyconfigurations
+
+import (
+	v1alpha1 "github.com/netbirdio/kubernetes-operator/api/v1alpha1"
+	apiv1alpha1 "github.com/netbirdio/kubernetes-operator/pkg/applyconfigurations/api/v1alpha1"
+	internal "github.com/netbirdio/kubernetes-operator/pkg/applyconfigurations/internal"
+	runtime "k8s.io/apimachinery/pkg/runtime"
+	schema "k8s.io/apimachinery/pkg/runtime/schema"
+	managedfields "k8s.io/apimachinery/pkg/util/managedfields"
+)
+
+// ForKind returns an apply configuration type for the given GroupVersionKind, or nil if no
+// apply configuration type exists for the given GroupVersionKind.
+func ForKind(kind schema.GroupVersionKind) interface{} {
+	switch kind {
+	// Group=netbird.io, Version=v1alpha1
+	case v1alpha1.SchemeGroupVersion.WithKind("SetupKey"):
+		return &apiv1alpha1.SetupKeyApplyConfiguration{}
+	case v1alpha1.SchemeGroupVersion.WithKind("SetupKeySpec"):
+		return &apiv1alpha1.SetupKeySpecApplyConfiguration{}
+	case v1alpha1.SchemeGroupVersion.WithKind("SetupKeyStatus"):
+		return &apiv1alpha1.SetupKeyStatusApplyConfiguration{}
+
+	}
+	return nil
+}
+
+func NewTypeConverter(scheme *runtime.Scheme) managedfields.TypeConverter {
+	return managedfields.NewSchemeTypeConverter(scheme, internal.Parser())
+}