Merge pull request #39165 from WilliButz/update-postfix-exporter

prometheus-postfix-exporter: 2017-06-01 -> 0.1.1, update module

nixos/modules/services/monitoring/prometheus/exporters/postfix.nix

@@ -32,6 +32,33 @@ in
         Path where Postfix places it's showq socket.
       '';
     };
+    systemd = {
+      enable = mkEnableOption ''
+        reading metrics from the systemd-journal instead of from a logfile
+      '';
+      unit = mkOption {
+        type = types.str;
+        default = "postfix.service";
+        description = ''
+          Name of the postfix systemd unit.
+        '';
+      };
+      slice = mkOption {
+        type = types.nullOr types.str;
+        default = null;
+        description = ''
+          Name of the postfix systemd slice.
+          This overrides the <option>systemd.unit</option>.
+        '';
+      };
+      journalPath = mkOption {
+        type = types.nullOr types.path;
+        default = null;
+        description = ''
+          Path to the systemd journal.
+        '';
+      };
+    };
   };
   serviceOpts = {
     serviceConfig = {
@@ -39,7 +66,15 @@ in
         ${pkgs.prometheus-postfix-exporter}/bin/postfix_exporter \
           --web.listen-address ${cfg.listenAddress}:${toString cfg.port} \
           --web.telemetry-path ${cfg.telemetryPath} \
-          ${concatStringsSep " \\\n  " cfg.extraFlags}
+          --postfix.showq_path ${cfg.showqPath} \
+          ${concatStringsSep " \\\n  " (cfg.extraFlags
+          ++ optional cfg.systemd.enable "--systemd.enable"
+          ++ optional cfg.systemd.enable (if cfg.systemd.slice != null
+                                          then "--systemd.slice ${cfg.systemd.slice}"
+                                          else "--systemd.unit ${cfg.systemd.unit}")
+          ++ optional (cfg.systemd.enable && (cfg.systemd.journalPath != null))
+                       "--systemd.jounal_path ${cfg.systemd.journalPath}"
+          ++ optional (!cfg.systemd.enable) "--postfix.logfile_path ${cfg.logfilePath}")}
       '';
     };
   };

pkgs/servers/monitoring/prometheus/postfix-exporter-deps.nix

@@ -5,8 +5,26 @@
     fetch = {
       type = "git";
       url = "https://github.com/beorn7/perks";
-      rev = "4c0e84591b9aa9e6dcfdf3e020114cd81f89d5f9";
-      sha256 = "1hrybsql68xw57brzj805xx2mghydpdiysv3gbhr7f5wlxj2514y";
+      rev = "3a771d992973f24aa725d07868b467d1ddfceafb";
+      sha256 = "1l2lns4f5jabp61201sh88zf3b0q793w4zdgp9nll7mmfcxxjif3";
+    };
+  }
+  {
+    goPackagePath = "github.com/coreos/go-systemd";
+    fetch = {
+      type = "git";
+      url = "https://github.com/coreos/go-systemd";
+      rev = "d1b7d058aa2adfc795ad17ff4aaa2bc64ec11c78";
+      sha256 = "1nz3v1b90hnmj2vjjwq96pr6psxlndqjyd30v9sgiwygzb7db9mv";
+    };
+  }
+  {
+    goPackagePath = "github.com/coreos/pkg";
+    fetch = {
+      type = "git";
+      url = "https://github.com/coreos/pkg";
+      rev = "97fdf19511ea361ae1c100dd393cc47f8dcfa1e1";
+      sha256 = "1srn87wih25l09f75483hnxsr8fc6rq3bk7w1x8125ym39p6mg21";
     };
   }
   {
@@ -14,8 +32,8 @@
     fetch = {
       type = "git";
       url = "https://github.com/golang/protobuf";
-      rev = "c65a0412e71e8b9b3bfd22925720d23c0f054237";
-      sha256 = "1ch3czyzq5abl6zm1l0dfsi09xj43ql9jcbmbhfhxz954pw03v3v";
+      rev = "e09c5db296004fbe3f74490e84dcd62c3c5ddb1b";
+      sha256 = "1acnmalkqwrq6k3l71c4pyws0zn18r2609kqaq55lhbdcjgzid31";
     };
   }
   {
@@ -32,8 +50,8 @@
     fetch = {
       type = "git";
       url = "https://github.com/prometheus/client_golang";
-      rev = "06bc6e01f4baf4ee783ffcd23abfcb0b0f9dfada";
-      sha256 = "0dvv21214sn702kc25y5l0gd9d11358976d3w31fgwx7456mjx26";
+      rev = "82f5ff156b29e276022b1a958f7d385870fb9814";
+      sha256 = "111j329yrlgvh73dm80gawwxsh9dgjkw74254kyj5c2rfmra7znz";
     };
   }
   {
@@ -50,8 +68,8 @@
     fetch = {
       type = "git";
       url = "https://github.com/prometheus/common";
-      rev = "89604d197083d4781071d3c65855d24ecfb0a563";
-      sha256 = "169rdlaf2mk9z4fydz7ajmngyhmf3q1lk96yhvx46bn986x5xkyn";
+      rev = "d0f7cd64bda49e08b22ae8a730aa57aa0db125d6";
+      sha256 = "1d4hfbb66xsf0wq317fwhgrwakqzhvryw4d7ip851lwrpql5fqcx";
     };
   }
   {
@@ -59,8 +77,8 @@
     fetch = {
       type = "git";
       url = "https://github.com/prometheus/procfs";
-      rev = "cb4147076ac75738c9a7d279075a253c0cc5acbd";
-      sha256 = "0zhlrik0f9q1lj6cisgnxgbz4darbcix52hm5abi24l2ahchf5ca";
+      rev = "8b1c2da0d56deffdbb9e48d4414b4e674bd8083e";
+      sha256 = "0x128p15h35mgwqxkigfkk1lfrcz9g697ahl8v6xp9kwvcqvjrrf";
     };
   }
 ]

pkgs/servers/monitoring/prometheus/postfix-exporter.nix

@@ -1,21 +1,27 @@
-{ stdenv, buildGoPackage, fetchFromGitHub }:
+{ stdenv, buildGoPackage, fetchFromGitHub, systemd, makeWrapper }:
 
 buildGoPackage rec {
-  name = "postfix_exporter-unstable-${version}";
-  version = "2017-06-01";
-  rev = "a8b4bed735a03f234fcfffba85302f51025e6b1d";
+  name = "postfix_exporter-${version}";
+  version = "0.1.1";
 
   goPackagePath = "github.com/kumina/postfix_exporter";
 
   src = fetchFromGitHub {
     owner = "kumina";
     repo = "postfix_exporter";
-    inherit rev;
-    sha256 = "0rxvjpyjcvr1y8k8skq5f1bnl0mpgvaa04dn8c44v7afqnv78riy";
+    rev = version;
+    sha256 = "1p2j66jzzgyv2w832pw57g02vrac6ldrblqllgwyy0i8krb3ibyz";
   };
 
+  buildInputs = [ systemd makeWrapper ];
+
   goDeps = ./postfix-exporter-deps.nix;
 
+  postInstall = ''
+    wrapProgram $bin/bin/postfix_exporter \
+      --prefix LD_LIBRARY_PATH : "${systemd.lib}/lib"
+  '';
+
   meta = with stdenv.lib; {
     inherit (src.meta) homepage;
     description = "A Prometheus exporter for Postfix";