1 files changed, 46 insertions, 0 deletions
diff --git a/modules/common.nix b/modules/common.nix
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+# Options both halves need to agree on.
+#
+# The collectors bind these ports; the server scrapes them and pushes to them. When the
+# two halves live in separate NixOS configurations (host + container) there is no shared
+# `config` to read, so each side sets its own copy and it is on you to keep them equal —
+# which is why they are gathered in one small file rather than scattered.
+#
+# Imported by both modules/collectors.nix and modules/server.nix. Importing the same
+# path twice is harmless: the module system deduplicates imports by path, so a
+# configuration that uses both halves does not end up declaring these twice.
+{ lib, ... }:
+
+let
+  inherit (lib) mkOption types;
+
+  portOption = default: description: mkOption {
+    inherit default description;
+    type = types.port;
+  };
+in
+{
+  options.services.telemetry.ports = {
+    node = portOption 9100 ''
+      Port the Prometheus node exporter listens on. Also where the server's `node`
+      scrape job points.
+    '';
+
+    smartctl = portOption 9633 ''
+      Port the smartctl exporter listens on. Also where the server's `smartctl` scrape
+      job points.
+    '';
+
+    loki = portOption 3100 ''
+      Port Loki listens on. Also where the collectors' log shipper pushes to.
+    '';
+
+    prometheus = portOption 9090 ''
+      Port Prometheus listens on.
+    '';
+
+    grafana = portOption 3000 ''
+      Port Grafana listens on. If the reverse proxy is enabled this stays internal and
+      the proxy is what you connect to.
+    '';
+  };
+}