Impermanence and white space

nixos/modules/impermanence.nix

@@ -39,6 +39,7 @@ config = mkIf cfg.enable {
       "/etc/ssh/ssh_host_ed25519_key.pub"
       "/etc/ssh/ssh_host_rsa_key"
       "/etc/ssh/ssh_host_rsa_key.pub"
+      "/var/lib/${config.services.prometheus.stateDir}"
     ];
   };
   environment.etc.machine-id.source = "${cfg.storagePath}/machine-id";

nixos/roles/default.nix

@@ -56,5 +56,5 @@ services = {
       PasswordAuthentication = false;
     };
   };
-  };
+};
 }

nixos/roles/prometheusNodeExporter.nix

@@ -1,4 +1,3 @@
-{config, ...}:
 {
   imports = [ ];
   services.prometheus.exporters.node = {
@@ -34,5 +33,4 @@
     ];
   };
   networking.firewall.allowedTCPPorts = [ 9100 ];
-  environment.persistence.${config.impermanence.name}.directories = [ "/var/lib/${config.services.prometheus.stateDir}" ];
 }