# To enable the PodDisruptionBudget, configure it by specifying the
  # `minAvailable` or `maxUnavailable`. For example, to set the
  # minimum number of available replicas to 1, you can update this value as follows:
  #
  # podDisruptionBudget:
  #   minAvailable: 1
  #
  # Or, to allow a maximum of 1 unavailable replica, you can set:
  #
  # podDisruptionBudget:
  #   maxUnavailable: 1
  #

  //
  // The minimum valid value for expirationSeconds is 600, i.e. 10 minutes.
  //
  // +optional
  optional int32 expirationSeconds = 8;

  // allowedUsages specifies a set of usage contexts the key will be
  // valid for.
  // See:
  // 	https://tools.ietf.org/html/rfc5280#section-4.2.1.3
  // 	https://tools.ietf.org/html/rfc5280#section-4.2.1.12
  //

This is a work in progress - building on top of the multi-cluster installer.

As an extreme, the goal is to be possible to run Istio workloads in a cluster without installing any Istio component
in that cluster. Currently, the minimum we require is the security provider (node agent or citadel).

### Install Istio CRDs

This is the first step of the installation. Please do not remove or edit any CRD - config currently requires

  // Number of pod disruptions that are currently allowed.
  optional int32 disruptionsAllowed = 3;

  // current number of healthy pods
  optional int32 currentHealthy = 4;

  // minimum desired number of healthy pods
  optional int32 desiredHealthy = 5;

  // total number of pods counted by this disruption budget
  optional int32 expectedPods = 6;

  // address into 24 bits for the network portion and 8 bits for the host portion.
  // To allocate 256 IPs, set this field to 8 (a /24 mask for IPv4 or a /120 for IPv6).
  // Minimum value is 4 (16 IPs).
  // This field is immutable.
  // +required
  optional int32 perNodeHostBits = 2;

  // ipv4 defines an IPv4 IP block in CIDR notation(e.g. "10.0.0.0/8").

	if err != nil {
		return nil, nil, err
	}
	if err := k8sversion.IsK8VersionSupported(kubeClient, l); err != nil {
		return nil, nil, fmt.Errorf("check minimum supported Kubernetes version: %v", err)
	}
	return kubeClient, client, nil
}

// applyOptions contains the startup options for applying the manifest.
type applyOptions struct {
	// Path to the kubeconfig file.

	pkgVersion "istio.io/istio/pkg/version"
)

const (
	// MinK8SVersion is the minimum k8s version required to run this version of Istio
	// https://istio.io/docs/setup/platform-setup/
	MinK8SVersion               = 26
	UnSupportedK8SVersionLogMsg = "\nThe Kubernetes version %s is not supported by Istio %s. The minimum supported Kubernetes version is 1.%d.\n" +
		"Proceeding with the installation, but you might experience problems. " +

      --log_output_level: Comma-separated minimum per-scope logging level of messages to output, in the form of <scope>:<level>,<scope>:<level>,... where scope can be one of \[.*\] and level can be one of \[.*\]

a single `affinity` field that is passed through as-is to the Kubernetes resource.
This provides maximum flexibility with minimal API surface overhead.

## Making changes

## Step 1. Make changes in charts and values.yaml in `manifests` directory

Be sure to provide sufficient documentation and example usage in values.yaml.

  # Default: []
  exclude-files:
    - ".*\\.pb\\.go"
    - ".*\\.gen\\.go"
  # Maximum issues count per one linter.
  # Set to 0 to disable.
  # Default: 50
  max-issues-per-linter: 0
  # Maximum count of issues with the same text. Set to 0 to disable. Default is 3.