using const for mixnnode config template

mixnode/src/config/mod.rs

@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0
 
 use crate::config::persistence::pathfinder::MixNodePathfinder;
-use crate::config::template::config_template;
+use crate::config::template::CONFIG_TEMPLATE;
 use nym_config::defaults::{
     mainnet, DEFAULT_HTTP_API_LISTENING_PORT, DEFAULT_MIX_LISTENING_PORT,
     DEFAULT_VERLOC_LISTENING_PORT,
@@ -82,7 +82,7 @@ pub struct Config {
 
 impl NymConfigTemplate for Config {
     fn template() -> &'static str {
-        config_template()
+        CONFIG_TEMPLATE
     }
 }
 

mixnode/src/config/template.rs

@@ -1,12 +1,11 @@
 // Copyright 2020 - Nym Technologies SA <contact@nymtech.net>
 // SPDX-License-Identifier: Apache-2.0
 
-pub(crate) fn config_template() -> &'static str {
-    // While using normal toml marshalling would have been way simpler with less overhead,
-    // I think it's useful to have comments attached to the saved config file to explain behaviour of
-    // particular fields.
-    // Note: any changes to the template must be reflected in the appropriate structs in verloc.
-    r#"
+// While using normal toml marshalling would have been way simpler with less overhead,
+// I think it's useful to have comments attached to the saved config file to explain behaviour of
+// particular fields.
+// Note: any changes to the template must be reflected in the appropriate structs.
+pub(crate) const CONFIG_TEMPLATE: &str = r#"
 # This is a TOML config file.
 # For more information, see https://github.com/toml-lang/toml
 
@@ -75,5 +74,4 @@ nym_root_directory = '{{ mixnode.nym_root_directory }}'
 
 # TODO
 
-"#
-}
+"#;