Merge pull request #319256 from shivaraj-bh/system_stats

pkgs/servers/sql/postgresql/ext/default.nix

@@ -74,6 +74,8 @@ self: super: {
 
     smlar = super.callPackage ./smlar.nix { };
 
+    system_stats = super.callPackage ./system_stats.nix { };
+
     temporal_tables = super.callPackage ./temporal_tables.nix { };
 
     timescaledb = super.callPackage ./timescaledb.nix { };

pkgs/servers/sql/postgresql/ext/system_stats.nix

@@ -0,0 +1,40 @@
+{
+  fetchFromGitHub,
+  lib,
+  stdenv,
+  postgresql,
+}:
+stdenv.mkDerivation rec {
+  pname = "system_stats";
+  version = "3.0";
+
+  buildInputs = [ postgresql ];
+
+  src = fetchFromGitHub {
+    owner = "EnterpriseDB";
+    repo = "system_stats";
+    rev = "v${version}";
+    hash = "sha256-LuX7/LOi0rl6L/kjbjq7rr2zPcGIOYB7hdZBNJ9xqak=";
+  };
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/{lib,share/postgresql/extension}
+
+    cp *${postgresql.dlSuffix} $out/lib
+    cp *.sql     $out/share/postgresql/extension
+    cp *.control $out/share/postgresql/extension
+
+    runHook postInstall
+  '';
+
+  meta = with lib; {
+    description = "A Postgres extension for exposing system metrics such as CPU, memory and disk information";
+    homepage = "https://github.com/EnterpriseDB/system_stats";
+    changelog = "https://github.com/EnterpriseDB/system_stats/raw/v${version}/CHANGELOG.md";
+    maintainers = with maintainers; [ shivaraj-bh ];
+    platforms = postgresql.meta.platforms;
+    license = licenses.postgresql;
+  };
+}