docker-minecraft-bedrock-server/examples/kubernetes-tailscale-operator.yml at master · itzg/docker-minecraft-bedrock-server · GitHub

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# This example manifest deploys a Minecraft Bedrock server on Kubernetes
# using Tailscale Operator to provide secure access to the server.
#
# Prerequisites: A Kubernetes cluster with Tailscale Operator installed and configured.
# Please see https://tailscale.com/kb/1236/kubernetes-operator
#
# Also, This example contains an initContainer to adjust the MTU of the pod's network interface.
# Please see https://github.com/itzg/docker-minecraft-bedrock-server/discussions/553
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: minecraft-bedrock
  labels:
    role: service-config
    app: bds
data:
  EULA: "TRUE"
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: bds
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 1Gi
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  labels:
    app: bds
  name: bds
spec:
  replicas: 1
  serviceName: bds
  selector:
    matchLabels:
      app: bds
  template:
    metadata:
      labels:
        app: bds
    spec:
      initContainers:
        - name: setup-mtu
          image: busybox:latest
          command:
            - /bin/sh
            - -c
            - |
              ip route
              ip route change default via $POD_IP dev $TARGET_DEVICE mtu $TARGET_MTU
              ip route
          env:
            - name: POD_IP
              valueFrom:
                fieldRef:
                  fieldPath: status.podIP
            - name: TARGET_MTU
              value: "1280" # tailscale's default MTU. see https://tailscale.com/kb/1023/troubleshooting#tcp-connection-issues-between-two-devices
            - name: TARGET_DEVICE
              value: eth0 # adjust if not eth0
          securityContext:
            capabilities:
              add:
                - NET_ADMIN # it is necessary to change the MTU

      containers:
        - name: main
          image: itzg/minecraft-bedrock-server
          imagePullPolicy: Always
          envFrom:
            - configMapRef:
                name: minecraft-bedrock
          volumeMounts:
            - mountPath: /data
              name: data
          ports:
            - containerPort: 19132
              protocol: UDP
            - containerPort: 19133
              protocol: UDP
          readinessProbe: &probe
            exec:
              command:
                - mc-monitor
                - status-bedrock
                - --host
                - 127.0.0.1
            initialDelaySeconds: 30
          livenessProbe: *probe
          tty: true
          stdin: true
  volumeClaimTemplates:
    - metadata:
        name: data
      spec:
        accessModes:
          - ReadWriteOnce
        resources:
          requests:
            storage: 1Gi
---
apiVersion: v1
kind: Service
metadata:
  name: bds
  annotations:
    tailscale.com/expose: "true" # expose this service via Tailscale
spec:
  selector:
    app: bds
  ports:
    - port: 19132
      protocol: UDP
    - port: 19133
      protocol: UDP