From be3c76801ea6784e663d762872be2f2edf75c21a Mon Sep 17 00:00:00 2001
From: Gabriel Simmer <g@gmem.ca>
Date: Fri, 10 Nov 2023 14:45:02 +0000
Subject: [PATCH] Deploy vrchat-prometheus-adapter to cluster

---
 homelab/kubernetes.nix                 |  3 +-
 homelab/vrchat-prometheus-exporter.nix | 56 ++++++++++++++++++++++++++
 2 files changed, 58 insertions(+), 1 deletion(-)
 create mode 100644 homelab/vrchat-prometheus-exporter.nix

diff --git a/homelab/kubernetes.nix b/homelab/kubernetes.nix
index f521853..3cb05c7 100644
--- a/homelab/kubernetes.nix
+++ b/homelab/kubernetes.nix
@@ -1,5 +1,6 @@
 { lib, config, kubenix, ... }: {
   imports = [ kubenix.modules.k8s
               (import ./custom.nix)
-              (import ./tclip.nix) ];
+              (import ./tclip.nix)
+              (import ./vrchat-prometheus-exporter.nix) ];
 }
diff --git a/homelab/vrchat-prometheus-exporter.nix b/homelab/vrchat-prometheus-exporter.nix
new file mode 100644
index 0000000..1587f7b
--- /dev/null
+++ b/homelab/vrchat-prometheus-exporter.nix
@@ -0,0 +1,56 @@
+let
+  appName = "vrchat-prometheus-exporter";
+  appImage = "git.gmem.ca/arch/vrchat-prometheus-adapter:arm";
+in
+{
+  kubernetes.resources."monitoring.coreos.com"."v1".ServiceMonitor.vrchat-prometheus-adapter = {
+    spec = {
+      selector.matchLabels.app = appName;
+      endpoints = [ { port = "metrics"; interval = "60s"; } ];
+    };
+  };
+  kubernetes.resources.services.vrchat-prometheus-adapter = {
+    metadata.annotations = {
+      "prometheus.io/port" = "6534";
+      "prometheus.io/scrape" = "true";
+      "prometheus.io/path" = "/metrics";
+    };
+    spec = {
+      selector.app = appName;
+      ports.metrics = {
+        port = 6534;
+        targetPort = 6534;
+      };
+    };
+  };
+  kubernetes.resources.deployments.vrchat-prometheus-adapter.spec = {
+    selector.matchLabels.app = appName;
+    template = {
+      metadata.labels.app = appName;
+      spec = {
+        volumes = {
+          config.configMap.name = "vrchat-prometheus-adapter";
+        };
+        containers = {
+          vrchat-prometheus-adapter = {
+            image = appImage;
+            imagePullPolicy = "Always";
+            volumeMounts = [ { name = "config"; mountPath = "/config.toml"; subPath = "config.toml"; } ];
+            envFrom = [ { secretRef.name = "vrchat-prometheus-adapter"; } ];
+            ports.metrics.containerPort = 6534;
+            resources = {
+              requests = {
+                cpu = "50m";
+                memory = "32Mi";
+              };
+              limits = {
+                cpu = "500m";
+                memory = "256Mi";
+              };
+            };
+          };
+        };
+      };
+    };
+  };
+}