zerotier-docker/k8s/deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: zerotier
spec:
  selector:
    matchLabels:
      app: zerotier
  template:
    metadata:
      labels:
        app: zerotier
    spec:
      initContainers:
        - name: network-joiner
          image: busybox
          env:
            - name: NETWORK_ID
              value: "<replace with network id>"
          command: [ "sh", "-c", "mkdir -p /mnt/networks.d && touch /mnt/networks.d/$(NETWORK_ID).conf" ]
          volumeMounts:
            - name: vol
              subPath: config
              mountPath: /mnt

      containers:
      - name: zerotier
        image: zyclonite/zerotier:router
        resources:
          limits:
            memory: "128Mi"
            cpu: "500m"
        ports:
        - name: net
          containerPort: 9993
        volumeMounts:
          - name: vol
            subPath: config
            mountPath: /var/lib/zerotier-one
          - name: tun
            readOnly: true
            mountPath: /dev/net/tun

        securityContext:
          capabilities:
            add:
            - NET_ADMIN
            - NET_RAW
            - SYS_ADMIN

      dnsPolicy: "None"
      dnsConfig:
        nameservers:
          - 1.1.1.1
          - 8.8.8.8

      volumes:
        - name: vol
          persistentVolumeClaim:
            claimName: zerotier
        - name: tun
          hostPath:
            path: /dev/net/tun
            type: ''