···

       
20
       
20
       
 
       


     

       
21
       
21
       
 
       
  options = {

     

       
22
       
22
       
 
       


     

       
23
       
23
       
-
       
    networking.fqdn = lib.mkOption {

     

       
24
       
24
       
-
       
      type = types.nullOr types.str;

     

       
25
       
25
       
-
       
      default = null;

     

       
26
       
26
       
-
       
      example = "foo.example.com";

     

       
27
       
27
       
-
       
      description = ''

     

       
28
       
28
       
-
       
        Fully qualified domain name, if any.

     

       
29
       
29
       
-
       
      '';

     

       
30
       
30
       
-
       
    };

     

       
31
       
31
       
-
       


     

       
32
       
23
       
 
       
    networking.hosts = lib.mkOption {

     

       
33
       
24
       
 
       
      type = types.attrsOf ( types.listOf types.str );

     

       
34
       
25
       
 
       
      default = {};

     
···

       
220
       
211
       
 
       
                ( builtins.hasAttr "::1" cfg.hosts )

     

       
221
       
212
       
 
       
                ( concatStringsSep " " ( remove "localhost" cfg.hosts."::1" ));

     

       
222
       
213
       
 
       
              otherHosts = allToString ( removeAttrs cfg.hosts [ "127.0.0.1" "::1" ]);

     

       
223
       
223
       
-
       
              maybeFQDN = optionalString ( cfg.fqdn != null ) cfg.fqdn;

     

       
224
       
214
       
 
       
          in

     

       
225
       
215
       
 
       
          ''

     

       
226
       
226
       
-
       
            127.0.0.1 ${maybeFQDN} ${userLocalHosts} localhost

     

       
216
       
216
       
+
       
            127.0.0.1 ${userLocalHosts} localhost

     

       
227
       
217
       
 
       
            ${optionalString cfg.enableIPv6 ''

     

       
228
       
228
       
-
       
              ::1 ${maybeFQDN} ${userLocalHosts6} localhost

     

       
218
       
218
       
+
       
              ::1 ${userLocalHosts6} localhost

     

       
229
       
219
       
 
       
            ''}

     

       
230
       
220
       
 
       
            ${otherHosts}

     

       
231
       
221
       
 
       
            ${cfg.extraHosts}