connect:
  enabled: true
  name: production-server  # Same endpoint name

apiVersion: apps/v1
kind: Deployment
metadata:
  name: gate-proxy
  namespace: minecraft
spec:
  replicas: 3  # Run 3 instances for redundancy
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 1  # Keep at least 2 instances running during updates
      maxSurge: 1        # Allow 1 extra instance during rollout
  selector:
    matchLabels:
      app: gate
  template:
    metadata:
      labels:
        app: gate
    spec:
      containers:
      - name: gate
        image: ghcr.io/minekube/gate:latest
        ports:
        - containerPort: 25565
          protocol: TCP
        livenessProbe:
          tcpSocket:
            port: 25565
          initialDelaySeconds: 30
          periodSeconds: 10
          timeoutSeconds: 5
          failureThreshold: 3
        readinessProbe:
          tcpSocket:
            port: 25565
          initialDelaySeconds: 5
          periodSeconds: 5
          timeoutSeconds: 3
          failureThreshold: 2
        resources:
          requests:
            memory: "512Mi"
            cpu: "500m"
          limits:
            memory: "2Gi"
            cpu: "2000m"
---
apiVersion: v1
kind: Service
metadata:
  name: gate-service
  namespace: minecraft
spec:
  type: LoadBalancer
  sessionAffinity: ClientIP
  sessionAffinityConfig:
    clientIP:
      timeoutSeconds: 10800  # 3 hours
  selector:
    app: gate
  ports:
  - protocol: TCP
    port: 25565
    targetPort: 25565

global
    log stdout local0
    maxconn 10000
    daemon

defaults
    log global
    mode tcp
    option tcplog
    timeout connect 5s
    timeout client 1h
    timeout server 1h
    timeout check 5s

frontend minecraft
    bind *:25565
    default_backend gate_proxies

backend gate_proxies
    balance leastconn
    option tcp-check
    
    # Sticky sessions based on source IP
    stick-table type ip size 100k expire 3h
    stick on src
    
    # Health check configuration
    default-server inter 2s fall 3 rise 2 on-marked-down shutdown-sessions
    
    server gate1 10.0.1.10:25565 check
    server gate2 10.0.1.11:25565 check
    server gate3 10.0.1.12:25565 check backup  # Only used when gate1 & gate2 fail

config:
  servers:
    lobby-primary: 10.0.1.20:25565
    lobby-backup: 10.0.1.21:25565
    survival: 10.0.1.30:25565
    creative: 10.0.1.40:25565
  
  try:
    - lobby-primary   # Try first
    - lobby-backup    # Fallback if primary fails
    - survival        # Fallback if both lobbies fail

config:
  # Enable automatic failover when server disconnects unexpectedly
  failoverOnUnexpectedServerDisconnect: true
  
  try:
    - lobby
    - survival
    - creative

config:
  lite:
    enabled: true
    routes:
      - host: "play.example.com"
        backend:
          - "primary:25565"   # Try first
          - "backup1:25565"   # Try if primary fails
          - "backup2:25565"   # Try if backup1 fails
        strategy: sequential  # Explicit sequential failover
        fallback:
          motd: |
            §cAll servers are offline
            §ePlease try again later
          version:
            name: '§cMaintenance'
            protocol: -1

config:
  # Time to wait for backend connection before failing over
  connectionTimeout: 3s
  
  # Time to wait for backend response before failing over
  readTimeout: 30s

config:
  quota:
    connections:
      enabled: true
      ops: 5          # Allow 5 new connections per second
      burst: 10       # Allow burst of up to 10 connections
      maxEntries: 1000
    logins:
      enabled: true
      ops: 0.4        # Allow 1 login every 2.5 seconds
      burst: 3        # Allow burst of 3 logins
      maxEntries: 1000

config:
  lite:
    enabled: true
    routes:
      - host: "*.global.example.com"
        backend:
          - "us-east-cluster:25565"
          - "eu-west-cluster:25565"
          - "asia-pac-cluster:25565"
        strategy: lowest-latency  # Route to nearest region

groups:
  - name: gate-alerts
    rules:
      # Alert when Gate instance is down
      - alert: GateInstanceDown
        expr: up{job="gate"} == 0
        for: 1m
        labels:
          severity: critical
        annotations:
          summary: "Gate instance {{ $labels.instance }} is down"
      
      # Alert when all Gate instances are down
      - alert: AllGateInstancesDown
        expr: count(up{job="gate"} == 1) == 0
        for: 30s
        labels:
          severity: critical
        annotations:
          summary: "All Gate instances are down - players cannot connect"
      
      # Alert when backend server unreachable
      - alert: BackendServerUnreachable
        expr: gate_backend_status{status="offline"} == 1
        for: 2m
        labels:
          severity: warning
        annotations:
          summary: "Backend server {{ $labels.server }} is unreachable"