istio

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//go:build integ
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// +build integ
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// Copyright Istio Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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//     http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package helmupgrade
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import (
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	"testing"
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	"github.com/Masterminds/semver/v3"
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	"istio.io/istio/pkg/test/env"
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	"istio.io/istio/pkg/test/framework"
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	"istio.io/istio/pkg/test/framework/resource"
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	"istio.io/istio/pkg/util/image"
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)
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var (
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	previousSupportedVersion string
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	nMinusTwoVersion         string
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)
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const imageToCheck = "gcr.io/istio-release/pilot"
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func initVersions(ctx resource.Context) error {
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	versionFromFile, err := env.ReadVersion()
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	if err != nil {
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		return err
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	}
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	v, err := semver.NewVersion(versionFromFile)
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	if err != nil {
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		return err
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	}
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	previousVersion := semver.New(v.Major(), v.Minor()-1, v.Patch(), v.Prerelease(), v.Metadata())
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	// If the previous version is not published yet, use the latest one
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	if exists, err := image.Exists(imageToCheck + ":" + previousVersion.String()); err != nil {
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		return err
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	} else if !exists {
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		previousVersion = semver.New(v.Major(), v.Minor()-2, v.Patch(), v.Prerelease(), v.Metadata())
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	}
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	previousSupportedVersion = previousVersion.String()
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	nMinusTwoVersion = semver.New(previousVersion.Major(), previousVersion.Minor()-1, previousVersion.Patch(),
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		previousVersion.Prerelease(), previousVersion.Metadata()).String()
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	// Workaround publish issues
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	if previousSupportedVersion == "1.17.0" {
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		previousSupportedVersion = "1.17.1"
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	}
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	if nMinusTwoVersion == "1.17.0" {
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		nMinusTwoVersion = "1.17.1"
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	}
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	return nil
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}
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// TestDefaultInPlaceUpgradeFromPreviousMinorRelease tests Istio upgrade using Helm with default options for Istio 1.(n-1)
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func TestDefaultInPlaceUpgradeFromPreviousMinorRelease(t *testing.T) {
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	framework.
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		NewTest(t).
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		Features("installation.helm.default.upgrade").
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		Run(performInPlaceUpgradeFunc(previousSupportedVersion, false))
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}
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// TestCanaryUpgradeFromPreviousMinorRelease tests Istio upgrade using Helm with default options for Istio 1.(n-1)
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func TestCanaryUpgradeFromPreviousMinorRelease(t *testing.T) {
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	framework.
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		NewTest(t).
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		Features("installation.helm.default.upgrade").
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		Run(performCanaryUpgradeFunc(previousSupportedVersion))
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}
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// TestCanaryUpgradeFromTwoMinorRelease tests Istio upgrade using Helm with default options for Istio 1.(n-2)
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func TestCanaryUpgradeFromTwoMinorRelease(t *testing.T) {
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	framework.
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		NewTest(t).
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		Features("installation.helm.default.upgrade").
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		Run(performCanaryUpgradeFunc(nMinusTwoVersion))
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}
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// TestStableRevisionLabelsUpgradeFromPreviousMinorRelease tests Istio upgrade using Helm with default options for Istio 1.(n-1)
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func TestStableRevisionLabelsUpgradeFromPreviousMinorRelease(t *testing.T) {
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	framework.
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		NewTest(t).
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		Features("installation.helm.default.upgrade").
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		Run(performRevisionTagsUpgradeFunc(previousSupportedVersion))
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}
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// TestStableRevisionLabelsUpgradeFromTwoMinorRelease tests Istio upgrade using Helm with default options for Istio 1.(n-2)
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func TestStableRevisionLabelsUpgradeFromTwoMinorRelease(t *testing.T) {
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	framework.
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		NewTest(t).
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		Features("installation.helm.default.upgrade").
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		Run(performRevisionTagsUpgradeFunc(nMinusTwoVersion))
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}
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// TestAmbientInPlaceUpgradeFromPreviousMinorRelease tests Istio upgrade using Helm with ambient profile for Istio 1.(n-1)
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func TestAmbientInPlaceUpgradeFromPreviousMinorRelease(t *testing.T) {
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	framework.
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		NewTest(t).
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		Features("installation.helm.ambient.upgrade").
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		Run(performInPlaceUpgradeFunc(previousSupportedVersion, true))
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}
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