From 7d701506cef03cb306600202b413bce22bc2c0bb Mon Sep 17 00:00:00 2001
From: kat witch <kat@kittywit.ch>
Date: Tue, 4 May 2021 14:38:09 +0100
Subject: [PATCH] services/netdata: Added to prometheus stack

---
 hosts/athame/nixos/default.nix  |  1 +
 hosts/samhain/nixos/default.nix |  1 +
 hosts/yule/nixos/default.nix    |  2 ++
 services/netdata.nix            | 24 ++++++++++++++++++++++++
 services/prometheus.nix         | 21 ++++++++++++++++++++-
 5 files changed, 48 insertions(+), 1 deletion(-)
 create mode 100644 services/netdata.nix

diff --git a/hosts/athame/nixos/default.nix b/hosts/athame/nixos/default.nix
index b69bd391..68b59b4f 100644
--- a/hosts/athame/nixos/default.nix
+++ b/hosts/athame/nixos/default.nix
@@ -29,6 +29,7 @@ with lib;
     ../../../services/loki.nix
     ../../../services/node-exporter.nix
     ../../../services/promtail.nix
+    ../../../services/netdata.nix
   ];
 
   boot.loader.grub.enable = true;
diff --git a/hosts/samhain/nixos/default.nix b/hosts/samhain/nixos/default.nix
index 031532e8..4da89544 100644
--- a/hosts/samhain/nixos/default.nix
+++ b/hosts/samhain/nixos/default.nix
@@ -17,6 +17,7 @@ in {
     ../../../services/nginx.nix
     ../../../services/node-exporter.nix
     ../../../services/promtail.nix
+    ../../../services/netdata.nix
     ./thermal
     ./transmission.nix
     ./jellyfin.nix
diff --git a/hosts/yule/nixos/default.nix b/hosts/yule/nixos/default.nix
index 8f999265..c50ce63c 100644
--- a/hosts/yule/nixos/default.nix
+++ b/hosts/yule/nixos/default.nix
@@ -9,6 +9,8 @@ with lib;
     ../../../services/restic.nix
     ../../../services/node-exporter.nix
     ../../../services/promtail.nix
+    ../../../services/netdata.nix
+    ../../../services/nginx.nix
     profiles.gui
     profiles.sway
     profiles.kat
diff --git a/services/netdata.nix b/services/netdata.nix
new file mode 100644
index 00000000..53b67a2b
--- /dev/null
+++ b/services/netdata.nix
@@ -0,0 +1,24 @@
+{ config, ... }:
+
+{
+  katnet.private.tcp.ports = [ 19999 ];
+
+  services.netdata = {
+    enable = true;    
+  };
+
+  services.nginx = {#
+    enable = true;
+    virtualHosts = {
+    "${config.networking.hostName}.net.kittywit.ch" = {
+      useACMEHost = "${config.networking.hostName}.net.kittywit.ch";
+      forceSSL = true;
+      locations = {
+        "/netdata" = {
+          proxyPass = "http://[::1]:19999/";
+        };
+      };
+    };
+  };
+};
+}
diff --git a/services/prometheus.nix b/services/prometheus.nix
index c8eb07a7..c789a844 100644
--- a/services/prometheus.nix
+++ b/services/prometheus.nix
@@ -8,6 +8,11 @@ let
       (filterAttrs
         (_: host: host.config.services.prometheus.exporters.node.enable)
         hosts));
+  nd_configs =
+    (mapAttrs (hostName: host: host.config.services.netdata)
+      (filterAttrs
+        (_: host: host.config.services.netdata.enable)
+        hosts));
 in {
   services.prometheus = {
     enable = true;
@@ -17,9 +22,23 @@ in {
         static_configs = [{ targets = [ "boline.net.kittywit.ch:8002" ];}];
       }
     ] ++ mapAttrsToList (hostName: prom: {
+      job_name = "${hostName}-nd";
+      metrics_path = "/api/v1/allmetrics";
+      honor_labels = true;
+      params = {
+        format = [ "prometheus" ];        
+      };
+      static_configs = [{
+        targets = [ 
+          "${hostName}.net.kittywit.ch:19999" 
+        ];
+      }];
+    }) nd_configs ++ mapAttrsToList (hostName: prom: {
       job_name = hostName;
       static_configs = [{
-        targets = [ "${hostName}.net.kittywit.ch:${toString prom.port}" ];
+        targets = [ 
+          "${hostName}.net.kittywit.ch:${toString prom.port}" 
+        ];
       }];
     }) prom_configs;
   };