From 4dfb6322f77a638dbc61361c6be7ca09b4ad2fe4 Mon Sep 17 00:00:00 2001
From: Gabriel Simmer <g@gmem.ca>
Date: Thu, 19 Oct 2023 14:31:30 +0100
Subject: [PATCH] Fully migrate tclip to kubenix

---
 flake.nix              |   4 +-
 homelab/custom.nix     |  17 ++++++
 homelab/kubernetes.nix |   3 +-
 homelab/tclip.nix      |  20 +++++++
 homelab/tclip.yml      | 119 -----------------------------------------
 5 files changed, 42 insertions(+), 121 deletions(-)
 create mode 100644 homelab/custom.nix
 delete mode 100644 homelab/tclip.yml

diff --git a/flake.nix b/flake.nix
index 5e50cd9..a8e22f2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -56,7 +56,9 @@
       packages.x86_64-linux = {
         kubernetes = (kubenix.evalModules.x86_64-linux {
           module = { kubenix, ... }: {
-            imports = [ kubenix.modules.k8s ./homelab/kubernetes.nix ];
+            imports = [
+              kubenix.modules.k8s ./homelab/kubernetes.nix
+            ];
           };
         }).config.kubernetes.result;
       };
diff --git a/homelab/custom.nix b/homelab/custom.nix
new file mode 100644
index 0000000..123641d
--- /dev/null
+++ b/homelab/custom.nix
@@ -0,0 +1,17 @@
+{ lib, ... }: {
+  kubernetes.customTypes = [
+    {
+      name = "servicemonitors";
+      attrName = "servicemonitor";
+      group = "monitoring.coreos.com";
+      kind = "ServiceMonitor";
+      version = "v1";
+      module = {
+        options.endpoints = lib.mkOption {
+          description = "Endpoints";
+          type = lib.types.list;
+        };
+      };
+    }
+  ];
+}
diff --git a/homelab/kubernetes.nix b/homelab/kubernetes.nix
index 7b9d17f..f521853 100644
--- a/homelab/kubernetes.nix
+++ b/homelab/kubernetes.nix
@@ -1,4 +1,5 @@
-{ config, kubenix, ... }: {
+{ lib, config, kubenix, ... }: {
   imports = [ kubenix.modules.k8s
+              (import ./custom.nix)
               (import ./tclip.nix) ];
 }
diff --git a/homelab/tclip.nix b/homelab/tclip.nix
index da89cb1..ce58f1c 100644
--- a/homelab/tclip.nix
+++ b/homelab/tclip.nix
@@ -4,6 +4,26 @@ let
   tclipImage = "git.gmem.ca/arch/tclip:arm";
 in
 {
+  kubernetes.resources."monitoring.coreos.com"."v1".ServiceMonitor.tclip = {
+    spec = {
+      selector.matchLabels.app = appName;
+      endpoints = [ { port = "metrics"; interval = "30s"; } ];
+    };
+  };
+  kubernetes.resources.services.tclip = {
+    metadata.annotations = {
+      "prometheus.io/port" = "9090";
+      "prometheus.io/scrape" = "true";
+      "prometheus.io/path" = "/metrics";
+    };
+    spec = {
+      selector.app = appName;
+      ports.metrics = {
+        port = 9090;
+        targetPort = 9090;
+      };
+    };
+  };
   kubernetes.resources.statefulSets.tclip.spec = {
     selector.matchLabels.app = appName;
     serviceName = appName;
diff --git a/homelab/tclip.yml b/homelab/tclip.yml
deleted file mode 100644
index fffd5ad..0000000
--- a/homelab/tclip.yml
+++ /dev/null
@@ -1,119 +0,0 @@
-apiVersion: apps/v1
-kind: StatefulSet
-metadata:
-  name: tclip
-spec:
-  selector:
-    matchLabels:
-      app: tclip
-  serviceName: tclip
-  replicas: 1
-  template:
-    metadata:
-      labels:
-        app: tclip
-    spec:
-      volumes:
-        - name: litestream
-          configMap:
-            name: tclip-litestream
-        - name: config
-          configMap:
-            name: tclip
-      initContainers:
-        - name: init-litestream
-          image: litestream/litestream:sha-749bc0d
-          args: ['restore', '-if-db-not-exists', '-if-replica-exists', '-v', '/data/data.db']
-          volumeMounts:
-          - name: data
-            mountPath: /data
-          - name: litestream
-            mountPath: /etc/litestream.yml
-            subPath: tclip.yml
-          envFrom:
-            - secretRef:
-                name: tclip-litestream-s3
-
-      containers:
-      - name: tclip
-        image: git.gmem.ca/arch/tclip:arm
-        imagePullPolicy: Always
-        resources:
-          limits:
-            memory: "128Mi"
-            cpu: "500m"
-          requests:
-            memory: "64Mi"
-            cpu: "100m"
-        envFrom:
-        - secretRef:
-            name: tclip
-        volumeMounts:
-        - name: data
-          mountPath: /data
-        env:
-        - name: DATA_DIR
-          value: /data
-        - name: USE_FUNNEL
-          value: "true"
-
-      - name: litestream
-        image: litestream/litestream:sha-749bc0d
-        args: ['replicate']
-        volumeMounts:
-        - name: data
-          mountPath: /data
-        - name: litestream
-          mountPath: /etc/litestream.yml
-          subPath: tclip.yml
-        envFrom:
-          - secretRef:
-              name: tclip-litestream-s3
-        ports:
-        - name: metrics
-          containerPort: 9090
-        resources:
-          limits:
-            memory: "128Mi"
-            cpu: "300m"
-          requests:
-            memory: "64Mi"
-            cpu: "100m"
-
-  volumeClaimTemplates:
-  - metadata:
-      name: data
-    spec:
-      storageClassName: nfs-client
-      accessModes: [ "ReadWriteOnce" ]
-      resources:
-        requests:
-          storage: 1Gi
----
-apiVersion: v1
-kind: Service
-metadata:
-  name: tclip-metrics
-  annotations:
-     prometheus.io/port: "9090"
-     prometheus.io/scrape: "true"
-     prometheus.io/path: "/metrics"
-spec:
-  selector:
-    app: tclip
-  ports:
-  - port: 9090
-    targetPort: 9090
-    name: litestream-metrics
----
-apiVersion: monitoring.coreos.com/v1
-kind: ServiceMonitor
-metadata:
-  name: tclip
-spec:
-  selector:
-    matchLabels:
-      app: tclip
-  endpoints:
-  - port: metrics
-    interval: 30s