From 84902910cc81fb490359cef3b9cf55318edb252a Mon Sep 17 00:00:00 2001
From: Edward Cheng <edward@cheng.sydney>
Date: Wed, 26 Jun 2024 20:32:15 +1000
Subject: [PATCH] add infra app prometheus-node-exporter

---
 kubernetes/infrastructure/kustomization.yaml  |  1 +
 .../app/deployment.yaml                       | 45 +++++++++++++++++++
 .../prometheus-node-exporter.yaml             | 18 ++++++++
 3 files changed, 64 insertions(+)
 create mode 100644 kubernetes/infrastructure/prometheus-node-exporter/app/deployment.yaml
 create mode 100644 kubernetes/infrastructure/prometheus-node-exporter/prometheus-node-exporter.yaml

diff --git a/kubernetes/infrastructure/kustomization.yaml b/kubernetes/infrastructure/kustomization.yaml
index 2c1a066..60f5403 100644
--- a/kubernetes/infrastructure/kustomization.yaml
+++ b/kubernetes/infrastructure/kustomization.yaml
@@ -10,4 +10,5 @@ resources:
   - ./postgresql/postgresql.yaml
   - ./prometheus/prometheus.yaml
   - ./prometheus-alertmanager/prometheus-alertmanager.yaml
+  - ./prometheus-node-exporter/prometheus-node-exporter.yaml
   - ./repositories/repositories.yaml
\ No newline at end of file
diff --git a/kubernetes/infrastructure/prometheus-node-exporter/app/deployment.yaml b/kubernetes/infrastructure/prometheus-node-exporter/app/deployment.yaml
new file mode 100644
index 0000000..e147492
--- /dev/null
+++ b/kubernetes/infrastructure/prometheus-node-exporter/app/deployment.yaml
@@ -0,0 +1,45 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: prometheus-node-exporter
+  namespace: prometheus
+  labels:
+    app: prometheus-node-exporter
+spec:
+  replicas: 3
+  selector:
+    matchLabels:
+      app: prometheus-node-exporter
+  template:
+    metadata:
+      labels:
+        app: prometheus-node-exporter
+    spec:
+      topologySpreadConstraints:
+        - maxSkew: 1
+          topologyKey: kubernetes.io/hostname
+          whenUnsatisfiable: DoNotSchedule
+          labelSelector:
+            matchLabels:
+              app: prometheus-node-exporter
+      securityContext:
+        runAsUser: 0
+        runAsGroup: 0
+      containers:
+        - name: prometheus-node-exporter
+          image: prom/node-exporter
+          args:
+            - "--net=\"host\""
+            - "--pid=\"host\""
+            - "--path.rootfs=/host"
+            - "--cap-add=SYS_TIME"
+          volumeMounts:
+            - name: node-volume
+              mountPath: /host
+              readOnly: true
+              mountPropagation: HostToContainer
+      volumes:
+        - name: node-volume
+          hostPath:
+            path: /
+            type: Directory
\ No newline at end of file
diff --git a/kubernetes/infrastructure/prometheus-node-exporter/prometheus-node-exporter.yaml b/kubernetes/infrastructure/prometheus-node-exporter/prometheus-node-exporter.yaml
new file mode 100644
index 0000000..18bf764
--- /dev/null
+++ b/kubernetes/infrastructure/prometheus-node-exporter/prometheus-node-exporter.yaml
@@ -0,0 +1,18 @@
+apiVersion: kustomize.toolkit.fluxcd.io/v1
+kind: Kustomization
+metadata:
+  name: prometheus-node-exporter
+  namespace: prometheus
+spec:
+  interval: 10m
+  timeout: 1m30s
+  retryInterval: 30s
+  path: ./kubernetes/infrastructure/prometheus-node-exporter/app
+  prune: true
+  sourceRef:
+    kind: GitRepository
+    namespace: flux-system
+    name: flux-system
+  dependsOn:
+    - name: namespaces
+      namespace: flux-system