nginx-tailscale.yaml

---
apiVersion: helm.toolkit.fluxcd.io/v2beta1
kind: HelmRelease
metadata:
  name: ingress-nginx-tailscale
  namespace: kube-system
spec:
  interval: 5m
  chart:
    spec:
      chart: ingress-nginx
      version: 4.12.0
      sourceRef:
        kind: HelmRepository
        name: ingress-nginx-charts
        namespace: flux-system
      interval: 5m
  values:
    controller:
      replicaCount: 2

      allowSnippetAnnotations: true
      enableAnnotationValidations: true

      updateStrategy:
        type: RollingUpdate

      service:
        enabled: true
        annotations:
          tailscale.com/hostname: "nginx-tailscale"
        type: LoadBalancer
        loadBalancerClass: tailscale
        externalTrafficPolicy: Local

      publishService:
        enabled: true

      ingressClassResource:
        name: nginx-tailscale
        default: false
        controllerValue: k8s.io/ingress-nginx-tailscale

      admissionWebhooks:
        objectSelector:
          matchExpressions:
            - key: ingress-class
              operator: In
              values:
                - nginx-tailscale

      config:
        client-header-timeout: 120
        client-body-buffer-size: 100M
        client-body-timeout: 120
        custom-http-errors: 400,401,403,404,500,502,503,504
        enable-brotli: "true"
        enable-ocsp: "true"
        enable-real-ip: "true"
        force-ssl-redirect: "true"
        hide-headers: Server,X-Powered-By
        hsts-max-age: 31449600
        keep-alive: 120
        keep-alive-requests: 10000
        log-format-escape-json: "true"
        log-format-upstream: >
          {"time": "$time_iso8601", "remote_addr": "$proxy_protocol_addr",
          "x_forwarded_for": "$proxy_add_x_forwarded_for", "request_id": "$req_id",
          "remote_user": "$remote_user", "bytes_sent": $bytes_sent, "request_time": $request_time,
          "status": $status, "vhost": "$host", "request_proto": "$server_protocol",
          "path": "$uri", "request_query": "$args", "request_length": $request_length,
          "duration": $request_time,"method": "$request_method", "http_referrer": "$http_referer",
          "http_user_agent": "$http_user_agent"}
        proxy-body-size: 0
        proxy-buffer-size: "16k"
        ssl-protocols: "TLSv1.3 TLSv1.2"
        use-forwarded-headers: "true"
      metrics:
        enabled: true
        serviceMonitor:
          enabled: true
          namespace: kube-system
          namespaceSelector:
            any: true

      extraArgs:
        default-ssl-certificate: "cert-manager/acme-crt-secret"

      topologySpreadConstraints:
        - maxSkew: 2
          topologyKey: kubernetes.io/hostname
          whenUnsatisfiable: DoNotSchedule
          labelSelector:
            matchLabels:
              app.kubernetes.io/instance: ingress-nginx-tailscale
              app.kubernetes.io/component: controller

      resources:
        requests:
          cpu: 25m
          memory: 500Mi
        limits:
          memory: 600Mi

    defaultBackend:
      enabled: true
      image:
        repository: ghcr.io/tarampampam/error-pages
        tag: 3.3.1
      extraEnvs:
        - { name: TEMPLATE_NAME, value: orient }
        - { name: SHOW_DETAILS, value: "false" }
      resources:
        requests:
          memory: 250Mi
          cpu: 25m
        limits:
          memory: 350Mi