package k8sversion

import (
	"fmt"

	goversion "github.com/hashicorp/go-version"
	"k8s.io/apimachinery/pkg/version"

	"istio.io/istio/operator/pkg/util/clog"
	"istio.io/istio/pkg/kube"
	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

  istioctl x version

  # Retrieve version information directly from the control plane, using RSA certificate security
  # (Certificates must be obtained before this step.  The --cert-dir flag lets istioctl bypass the Kubernetes API server.)
  istioctl x version --xds-address istio.example.com:15012 --cert-dir ~/.istio-certs

//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of

	cases := []struct {
		version  *version.Info
		expected int
		errMsg   error
		isValid  bool
	}{
		{
			version:  version1_17,
			expected: 17,
			errMsg:   nil,
			isValid:  true,
		},
		{
			version:  version1_8,
			expected: 8,
			errMsg:   nil,
			isValid:  true,
		},
		{
			version:  version1_18,
			expected: 18,
			errMsg:   nil,

}

// AddFreeVersion adds a free-version if needed for fi.VersionID version.
// Free-version will be added if fi.VersionID has transitioned.
func (x *xlMetaV2) AddFreeVersion(fi FileInfo) error {
	var uv uuid.UUID
	var err error
	switch fi.VersionID {
	case "", nullVersionID:
	default:
		uv, err = uuid.Parse(fi.VersionID)
		if err != nil {
			return err
		}
	}

	for i, version := range x.versions {

	_, err = xl.DeleteVersion(newtierfi)
	report()
	fatalErr(err)

	// At this point the version stack must look as below,
	// v3 --> free version      00000000-0000-0000-0000-0000000000f2 (from removal of null version)
	// v2 --> free version      00000000-0000-0000-0000-0000000000f1 (from overwriting of null version )
	// v1 --> non-free version  00000000-0000-0000-0000-000000000001

	// Check number of free-versions

// Copyright Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,

		statusKey     = "revision.status"
		sslVersionKey = "ssl.version"
	)

	var (
		buildVersion = bootstrapDump.GetBootstrap().GetNode().GetUserAgentBuildVersion()
		version      = buildVersion.GetVersion()
		md           = buildVersion.GetMetadata().GetFields()

		sb strings.Builder
	)

	fmt.Fprintf(&sb, "%d.%d.%d", version.GetMajorNumber(), version.GetMinorNumber(), version.GetPatch())
	if label, ok := md[buildLabelKey]; ok {

// format version and erasure coding information.
func (m *xlMetaV1Object) valid() bool {
	return isXLMetaFormatValid(m.Version, m.Format) &&
		isXLMetaErasureInfoValid(m.Erasure.DataBlocks, m.Erasure.ParityBlocks)
}

// Verifies if the backend format metadata is sane by validating
// the version string and format style.
func isXLMetaFormatValid(version, format string) bool {

package kms

import (
	"context"

	"github.com/minio/kms-go/kes"
)

// StatusManager is the generic interface that handles KMS status operations
type StatusManager interface {
	// Version retrieves version information
	Version(ctx context.Context) (string, error)
	// APIs retrieves a list of supported API endpoints
	APIs(ctx context.Context) ([]kes.API, error)