"maxUnavailable": "maxUnavailable is the maximum number of pods that can be unavailable during the update. Value can be an absolute number (ex: 5) or a percentage of desired pods (ex: 10%). Absolute number is calculated from percentage by rounding up. This can not be...

  // least 70% of desired pods.
  // +optional
  optional k8s.io.apimachinery.pkg.util.intstr.IntOrString maxUnavailable = 1;

  // The maximum number of pods that can be scheduled above the desired number of
  // pods.
  // Value can be an absolute number (ex: 5) or a percentage of desired pods (ex: 10%).
  // This can not be 0 if MaxUnavailable is 0.
  // Absolute number is calculated from percentage by rounding up.
  // Defaults to 25%.

    release: istio
  name: istiod
  namespace: istio-control
spec:
  selector:
    matchLabels:
      istio: pilot
  strategy:
    rollingUpdate:
      maxSurge: 100%
      maxUnavailable: 25%
  template:
    metadata:
      annotations:
        ambient.istio.io/redirection: disabled
        prometheus.io/port: "15014"
        prometheus.io/scrape: "true"
        sidecar.istio.io/inject: "false"

  // An eviction is allowed if at most "maxUnavailable" pods selected by
  // "selector" are unavailable after the eviction, i.e. even in absence of
  // the evicted pod. For example, one can prevent all voluntary evictions
  // by specifying 0. This is a mutually exclusive setting with "minAvailable".
  // +optional
  optional .k8s.io.apimachinery.pkg.util.intstr.IntOrString maxUnavailable = 3;

func (in *RollingUpdateDaemonSet) DeepCopyInto(out *RollingUpdateDaemonSet) {
	*out = *in
	if in.MaxUnavailable != nil {
		in, out := &in.MaxUnavailable, &out.MaxUnavailable
		*out = new(intstr.IntOrString)
		**out = **in
	}
	if in.MaxSurge != nil {
		in, out := &in.MaxSurge, &out.MaxSurge
		*out = new(intstr.IntOrString)
		**out = **in

	"maxUnavailable":             "An eviction is allowed if at most \"maxUnavailable\" pods selected by \"selector\" are unavailable after the eviction, i.e. even in absence of the evicted pod. For example, one can prevent all voluntary evictions by specifying 0. This is a mutually exclusive setting...

	"maxUnavailable":             "An eviction is allowed if at most \"maxUnavailable\" pods selected by \"selector\" are unavailable after the eviction, i.e. even in absence of the evicted pod. For example, one can prevent all voluntary evictions by specifying 0. This is a mutually exclusive setting...

  // An eviction is allowed if at most "maxUnavailable" pods selected by
  // "selector" are unavailable after the eviction, i.e. even in absence of
  // the evicted pod. For example, one can prevent all voluntary evictions
  // by specifying 0. This is a mutually exclusive setting with "minAvailable".
  // +optional
  optional k8s.io.apimachinery.pkg.util.intstr.IntOrString maxUnavailable = 3;

  labels:
    {{- .Values.labels | toYaml | nindent 4}}
  annotations:
    {{- .Values.annotations | toYaml | nindent 4 }}
spec:
  updateStrategy:
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 0
  selector:
    matchLabels:
      app: ztunnel
  template:
    metadata:
      labels:
        sidecar.istio.io/inject: "false"
        istio.io/dataplane-mode: none
        app: ztunnel

  labels:
    k8s-app: metrics-server
  name: metrics-server
  namespace: kube-system
spec:
  selector:
    matchLabels:
      k8s-app: metrics-server
  strategy:
    rollingUpdate:
      maxUnavailable: 0
  template:
    metadata:
      labels:
        k8s-app: metrics-server
    spec:
      containers:
      - args:
        - --cert-dir=/tmp
        - --secure-port=10250