Add validation of VolumeMounts

pkg/api/types.go

@@ -84,7 +84,10 @@ type VolumeMount struct {
 	// Optional: Defaults to false (read-write).
 	ReadOnly bool `yaml:"readOnly,omitempty" json:"readOnly,omitempty"`
 	// Required.
+	// Exactly one of the following must be set.  If both are set, prefer MountPath.
+	// DEPRECATED: Path will be removed in a future version of the API.
 	MountPath string `yaml:"mountPath,omitempty" json:"mountPath,omitempty"`
+	Path string `yaml:"Path,omitempty" json:"Path,omitempty"`
 	// One of: "LOCAL" (local volume) or "HOST" (external mount from the host). Default: LOCAL.
 	MountType string `yaml:"mountType,omitempty" json:"mountType,omitempty"`
 }