1 files changed, 55 insertions, 55 deletions
diff --git a/nixos/modules/services/monitoring/prometheus/exporters.xml b/nixos/modules/services/monitoring/prometheus/exporters.xml
index 7a0a1bdf2c14..81ac998729be 100644
--- a/nixos/modules/services/monitoring/prometheus/exporters.xml
+++ b/nixos/modules/services/monitoring/prometheus/exporters.xml
@@ -112,65 +112,65 @@
      directory, which will be called postfix.nix and contains all exporter
      specific options and configuration:
 <programlisting>
-        # nixpgs/nixos/modules/services/prometheus/exporters/postfix.nix
-        { config, lib, pkgs }:
+# nixpgs/nixos/modules/services/prometheus/exporters/postfix.nix
+{ config, lib, pkgs }:
 
-        with lib;
+with lib;
 
-        let
-          # for convenience we define cfg here
-          cfg = config.services.prometheus.exporters.postfix;
-        in
-        {
-          port = 9154; # The postfix exporter listens on this port by default
+let
+  # for convenience we define cfg here
+  cfg = config.services.prometheus.exporters.postfix;
+in
+{
+  port = 9154; # The postfix exporter listens on this port by default
 
-          # `extraOpts` is an attribute set which contains additional options
-          # (and optional overrides for default options).
-          # Note that this attribute is optional.
-          extraOpts = {
-            telemetryPath = mkOption {
-              type = types.str;
-              default = "/metrics";
-              description = ''
-                Path under which to expose metrics.
-              '';
-            };
-            logfilePath = mkOption {
-              type = types.path;
-              default = /var/log/postfix_exporter_input.log;
-              example = /var/log/mail.log;
-              description = ''
-                Path where Postfix writes log entries.
-                This file will be truncated by this exporter!
-              '';
-            };
-            showqPath = mkOption {
-              type = types.path;
-              default = /var/spool/postfix/public/showq;
-              example = /var/lib/postfix/queue/public/showq;
-              description = ''
-                Path at which Postfix places its showq socket.
-              '';
-            };
-          };
+  # `extraOpts` is an attribute set which contains additional options
+  # (and optional overrides for default options).
+  # Note that this attribute is optional.
+  extraOpts = {
+    telemetryPath = mkOption {
+      type = types.str;
+      default = "/metrics";
+      description = ''
+        Path under which to expose metrics.
+      '';
+    };
+    logfilePath = mkOption {
+      type = types.path;
+      default = /var/log/postfix_exporter_input.log;
+      example = /var/log/mail.log;
+      description = ''
+        Path where Postfix writes log entries.
+        This file will be truncated by this exporter!
+      '';
+    };
+    showqPath = mkOption {
+      type = types.path;
+      default = /var/spool/postfix/public/showq;
+      example = /var/lib/postfix/queue/public/showq;
+      description = ''
+        Path at which Postfix places its showq socket.
+      '';
+    };
+  };
 
-          # `serviceOpts` is an attribute set which contains configuration
-          # for the exporter's systemd service. One of
-          # `serviceOpts.script` and `serviceOpts.serviceConfig.ExecStart`
-          # has to be specified here. This will be merged with the default
-          # service confiuration.
-          serviceOpts = {
-            serviceConfig = {
-              ExecStart = ''
-                ${pkgs.prometheus-postfix-exporter}/bin/postfix_exporter \
-                  --web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
-                  --web.telemetry-path ${cfg.telemetryPath} \
-                  ${concatStringsSep " \\\n  " cfg.extraFlags}
-              '';
-            };
-          };
-        }
-      </programlisting>
+  # `serviceOpts` is an attribute set which contains configuration
+  # for the exporter's systemd service. One of
+  # `serviceOpts.script` and `serviceOpts.serviceConfig.ExecStart`
+  # has to be specified here. This will be merged with the default
+  # service confiuration.
+  serviceOpts = {
+    serviceConfig = {
+      ExecStart = ''
+        ${pkgs.prometheus-postfix-exporter}/bin/postfix_exporter \
+          --web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
+          --web.telemetry-path ${cfg.telemetryPath} \
+          ${concatStringsSep " \\\n  " cfg.extraFlags}
+      '';
+    };
+  };
+}
+</programlisting>
     </para>
    </listitem>
    <listitem>