configmap: add ClearSetters to get rid of all setters #5178

fs/config/configmap/configmap.go

@@ -60,6 +60,12 @@ func (c *Map) AddSetter(setter Setter) *Map {
 	return c
 }
 
+// ClearSetters removes all the setters set so far
+func (c *Map) ClearSetters() *Map {
+	c.setters = nil
+	return c
+}
+
 // get gets an item with the key passed in and return the value from
 // the first getter. If the item is found then it returns true,
 // otherwise false.

fs/config/configmap/configmap_test.go

@@ -88,6 +88,21 @@ func TestConfigMapSet(t *testing.T) {
 		"config1": "beetroot",
 		"config2": "potato",
 	}, m2)
+
+	m.ClearSetters()
+
+	// Check that nothing gets set
+	m.Set("config1", "BEETROOT")
+
+	assert.Equal(t, Simple{
+		"config1": "beetroot",
+		"config2": "potato",
+	}, m1)
+	assert.Equal(t, Simple{
+		"config1": "beetroot",
+		"config2": "potato",
+	}, m2)
+
 }
 
 func TestConfigMapGetOverride(t *testing.T) {