Rename admin_dn() to super_admin_dn()

Author: siegfriedweber

rust/operator-binary/src/controller/build/node_config.rs

@@ -243,15 +243,16 @@ impl NodeConfig {
             if !security.config.is_only_managed_by_api() {
                 config.insert(
                     CONFIG_OPTION_PLUGINS_SECURITY_AUTHCZ_ADMIN_DN.to_owned(),
-                    json!(self.admin_dn()),
+                    json!(self.super_admin_dn()),
                 );
             }
         }
 
         config
     }
 
-    pub fn admin_dn(&self) -> String {
+    /// Distinguished name (DN) of the super admin certificate
+    pub fn super_admin_dn(&self) -> String {
         // The common name field is limited to 64 characters, see RFC 5280.
         format!("CN=update-security-config.{}", self.cluster.uid)
     }

rust/operator-binary/src/controller/build/role_group_builder.rs

@@ -632,7 +632,7 @@ cp --archive config/opensearch.keystore {OPENSEARCH_INITIALIZED_KEYSTORE_DIRECTO
         let env_vars = EnvVarSet::new()
             .with_value(
                 &EnvVarName::from_str_unsafe("ADMIN_DN"),
-                self.node_config.admin_dn(),
+                self.node_config.super_admin_dn(),
             )
             .with_field_path(
                 &EnvVarName::from_str_unsafe("POD_NAME"),