Heartbeat with autodiscover

akrzos-heartbeat-auto.yaml

---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: heartbeat
  namespace: akrzos-heartbeat
  labels:
    k8s-app: akrzos-heartbeat
spec:
  updateStrategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 1
  selector:
    matchLabels:
      k8s-app: akrzos-heartbeat
  template:
    metadata:
      labels:
        k8s-app: akrzos-heartbeat
        app: heartbeat
    spec:
      containers:
      - name: heartbeat
        image: docker.elastic.co/beats/heartbeat:7.5.1
        imagePullPolicy: IfNotPresent
        args:
        - "-e"
        env:
        - name: NODE_NAME
          valueFrom:
            fieldRef:
              fieldPath: spec.nodeName
        securityContext:
          runAsUser: 0
          privileged: true
        resources:
          limits:
            memory: 200Mi
          requests:
            cpu: 100m
            memory: 100Mi
        volumeMounts:
        - name: heartbeat-config
          mountPath: /usr/share/heartbeat/heartbeat.yml
          readOnly: true
          subPath: heartbeat.yml
        - name: data
          mountPath: /usr/share/heartbeat/data
      # hostNetwork: true
      serviceAccountName: akrzos-heartbeat
      volumes:
      - name: heartbeat-config
        configMap:
          defaultMode: 0600
          name: heartbeat-config
      - name: data
        hostPath:
          path: /var/lib/heartbeat
          type: DirectoryOrCreate
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: heartbeat-config
  namespace: akrzos-heartbeat
data:
  heartbeat.yml: |
    heartbeat.autodiscover:
      providers:
        - type: kubernetes
          templates:
            - condition:
                equals:
                  kubernetes.labels.app: "heartbeat"
              config:
                - type: icmp
                  hosts: ["${data.host}"]
                  schedule: "@every 30s"

    logging.json: true

    output.file:
      path: "/usr/share/heartbeat/data"
      filename: heartbeat
      rotate_every_kb: 10000
      number_of_files: 5