munin: configuration de l'envois de mail

public/munin-muttrc

@@ -0,0 +1,3 @@
+set copy=no
+set realname = "Munin daemon"
+

public/service-monitoring-munin.nix

@@ -34,7 +34,7 @@ mkIf true {
         address 127.0.0.1
     '';
     extraGlobalConfig = ''
-      contact.email.command mail -s "Munin notification for ''${var:host}" root@${config.networking.hostName}
+      contact.email.command ${pkgs.mutt}/bin/mutt -F /etc/nixos/base/public/munin-muttrc -s "Munin notification for ''${var:host}" jean-pierre@ocean.prunetwork.fr
     '';
   };