s 2 graphite: init config

shared/2configs/graphite.nix

@@ -0,0 +1,37 @@
+{ config, lib, pkgs, ... }:
+
+# graphite-web on port 8080
+# carbon cache on port 2003 (tcp/udp)
+
+# TODO: krebs.graphite.minimal.enable
+# TODO: configure firewall
+with lib;
+{
+  imports = [ ];
+
+  services.graphite = {
+    web = {
+      enable = true;
+      host = "0.0.0.0";
+    };
+    carbon = {
+      enableCache = true;
+      # save disk usage by restricting to 1 bulk update per second
+      config = ''
+        [cache]
+        MAX_CACHE_SIZE = inf
+        MAX_UPDATES_PER_SECOND = 1
+        MAX_CREATES_PER_MINUTE = 50
+        '';
+      storageSchemas = ''
+        [carbon]
+        pattern = ^carbon\.
+        retentions = 60:90d
+
+        [default]
+        pattern = .*
+        retentions = 60s:30d,300s:1y
+        '';
+    };
+  };
+}