Fix hashicorp#2302 Add hugepages support to emptyDir

kubernetes/schema_pod_spec.go

@@ -669,11 +669,11 @@ func volumeSchema(isUpdatable bool) *schema.Resource {
 			Schema: map[string]*schema.Schema{
 				"medium": {
 					Type:         schema.TypeString,
-					Description:  `What type of storage medium should back this directory. The default is "" which means to use the node's default medium. Must be an empty string (default) or Memory. More info: https://kubernetes.io/docs/concepts/storage/volumes#emptydir`,
+					Description:  `What type of storage medium should back this directory. The default is "" which means to use the node's default medium. Must be an empty string (default), Memory, HugePages-<hugepagesize>. More info: https://kubernetes.io/docs/concepts/storage/volumes#emptydir`,
 					Optional:     true,
 					Default:      "",
 					ForceNew:     !isUpdatable,
-					ValidateFunc: validateAttributeValueIsIn([]string{"", "Memory"}),
+					ValidateFunc: validateAttributeValueIsInAndContain([]string{"", "Memory", "HugePages-"}),
 				},
 				"size_limit": {
 					Type:             schema.TypeString,

kubernetes/validators.go

@@ -268,6 +268,26 @@ func validateAttributeValueIsIn(validValues []string) schema.SchemaValidateFunc
 	}
 }
 
+func validateAttributeValueIsInAndContain(validValues []string) schema.SchemaValidateFunc {
+	return func(v interface{}, k string) (ws []string, errors []error) {
+		input := v.(string)
+		isValid := false
+		for _, s := range validValues {
+			if strings.Contains(input, s) {
+				isValid = true
+				break
+			}
+		}
+		if !isValid {
+			errors = append(errors, fmt.Errorf(
+				"%q must contain a value containing %#v, got %q",
+				k, validValues, input))
+		}
+		return
+
+	}
+}
+
 func validateTypeStringNullableIntOrPercent(v interface{}, key string) (ws []string, es []error) {
 	value, ok := v.(string)
 	if !ok {