apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: skubelb
  namespace: skubelb
  labels:
    k8s-app: skubelb
spec:
  selector:
    matchLabels:
      name: skubelb
  template:
    metadata:
      labels:
        name: skubelb
    spec:
      tolerations:
      # these tolerations are to have the daemonset runnable on control plane nodes
      # remove them if your control plane nodes should not run pods
      - key: node-role.kubernetes.io/control-plane
        operator: Exists
        effect: NoSchedule
      - key: node-role.kubernetes.io/master
        operator: Exists
        effect: NoSchedule
      containers:
      - name: skubelb
        image: alpine/curl:latest
        env:
        - name: NODE_IP
          valueFrom:
            fieldRef:
              fieldPath: status.hostIP
        command: ['sh', '-c', 'echo "Wait for heat death of universe" && sleep 999999d']
        lifecycle:
          preStop:
            exec:
              command:
              - sh
              - "-c"
              - "curl -X POST 10.128.0.2:8888/register/${NODE_IP}"
          postStart:
            exec:
              command:
              - sh
              - "-c"
              - "curl -X POST 10.128.0.2:8888/register/${NODE_IP}"
        resources:
          limits:
            memory: 200Mi
          requests:
            cpu: 10m
            memory: 100Mi
      terminationGracePeriodSeconds: 30