Allow mounting any files to the HCP pods

Signed-off-by: Alexey Makhov <[email protected]>

api/k0smotron.io/v1beta1/k0smotroncluster_types.go

@@ -84,6 +84,13 @@ type ClusterSpec struct {
 	// https://kubernetes.io/docs/concepts/storage/volumes
 	//+kubebuilder:validation:Optional
 	Manifests []v1.Volume `json:"manifests,omitempty"`
+	// Mounts allows to specify list of volumes with any files to be
+	// mounted in the controlplane pod. K0smotron allows any kind of volume, but the
+	// recommendation is to use secrets and configmaps.
+	// For more information check:
+	// https://kubernetes.io/docs/concepts/storage/volumes
+	//+kubebuilder:validation:Optional
+	Mounts []Mount `json:"mounts,omitempty"`
 	// ControlPlaneFlags allows to configure additional flags for k0s
 	// control plane and to override existing ones. The default flags are
 	// kept unless they are overriden explicitly. Flags with arguments must
@@ -101,6 +108,11 @@ type ClusterSpec struct {
 	Resources v1.ResourceRequirements `json:"resources,omitempty"`
 }
 
+type Mount struct {
+	Path            string `json:"path"`
+	v1.VolumeSource `json:",inline"`
+}
+
 const (
 	defaultK0SImage   = "k0sproject/k0s"
 	defaultK0SVersion = "v1.27.9-k0s.0"