Add ping exporter

ping-exporter/ping.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: ping-exporter
+  namespace: home-apps
+  labels:
+    name: ping-exporter
+    app: ping-exporter
+spec:
+  ports:
+    - port: 9427
+      name: metrics-port
+      targetPort: 9427
+  selector:
+    app: ping-exporter
+
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: ping-config
+  namespace: home-apps
+data:
+  config.yml: |
+    ---
+    targets:
+      - 8.8.8.8
+      - google.com
+
+    dns:
+      refresh: 2m15s
+      nameserver: 1.1.1.1
+
+    ping:
+      interval: 5s
+      timeout: 3s
+      history-size: 42
+      payload-size: 120
+
+    options:
+      disableIPv6: true
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ping-exporter
+  namespace: home-apps
+spec:
+  selector:
+    matchLabels:
+      app: ping-exporter
+  replicas: 1
+  template:
+    metadata:
+      labels:
+        name: ping-exporter
+        app: ping-exporter
+    spec:
+      volumes:
+        - name: config-volume
+          configMap:
+            name: ping-config
+      containers:
+        - name: ping-exporter
+          image: czerwonk/ping_exporter
+          ports:
+            - name: metrics-port
+              containerPort: 9427
+          resources:
+            requests:
+              cpu: 25m
+              memory: 64Mi
+            limits:
+              cpu: 50m
+              memory: 128Mi
+          volumeMounts:
+            - name: config-volume
+              mountPath: /config/config.yml
+              subPath: config.yml
+              readOnly: true
+
+---
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: ping-exporter
+  namespace: home-apps
+  labels:
+    app: ping-exporter
+    release: prometheus # this can make the service monitor be discovered by prometheus
+spec:
+  selector:
+    matchLabels:
+      app: ping-exporter
+  endpoints:
+    - port: metrics-port
+      targetPort: metrics-port
+      interval: 5s

test-lb.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: nginx
+  annotations:
+    metallb.universe.tf/address-pool: default
+spec:
+  loadBalancerIP: 192.168.1.233
+  ports:
+  - port: 80
+    name: http
+    targetPort: 80
+  - port: 443
+    name: https
+    targetPort: 443
+  selector:
+    app.kubernetes.io/name: nginx-ingress-controller
+  type: LoadBalancer