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versions.go
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versions.go
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// Copyright 2023 Flant JSC
//
// 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package mirror
import (
"encoding/json"
"fmt"
"github.com/Masterminds/semver/v3"
"github.com/google/go-containerregistry/pkg/name"
"github.com/google/go-containerregistry/pkg/v1/remote"
"github.com/deckhouse/deckhouse/dhctl/pkg/util/maputil"
)
func VersionsToCopy(mirrorCtx *Context) ([]semver.Version, error) {
releaseChannelsToCopy := []string{"alpha", "beta", "early-access", "stable", "rock-solid"}
releaseChannelsVersions := make([]*semver.Version, len(releaseChannelsToCopy))
for i, channel := range releaseChannelsToCopy {
v, err := getReleaseChannelVersionFromRegistry(mirrorCtx, channel)
if err != nil {
return nil, fmt.Errorf("get %s release version from registry: %w", channel, err)
}
releaseChannelsVersions[i] = v
}
rockSolidVersion := releaseChannelsVersions[len(releaseChannelsToCopy)-1]
mirrorFromVersion := *rockSolidVersion
if mirrorCtx.MinVersion != nil {
mirrorFromVersion = *mirrorCtx.MinVersion
if rockSolidVersion.LessThan(mirrorCtx.MinVersion) {
mirrorFromVersion = *rockSolidVersion
}
}
tags, err := getReleasedTagsFromRegistry(mirrorCtx)
if err != nil {
return nil, fmt.Errorf("get releases from github: %w", err)
}
alphaChannelVersion := releaseChannelsVersions[0]
for i := range releaseChannelsToCopy {
if releaseChannelsToCopy[i] == "alpha" {
alphaChannelVersion = releaseChannelsVersions[i]
break
}
}
versionsAboveMinimal := parseAndFilterVersionsAboveMinimalAnbBelowAlpha(&mirrorFromVersion, tags, alphaChannelVersion)
versionsAboveMinimal = filterOnlyLatestPatches(versionsAboveMinimal)
return deduplicateVersions(append(releaseChannelsVersions, versionsAboveMinimal...)), nil
}
func getReleasedTagsFromRegistry(mirrorCtx *Context) ([]string, error) {
nameOpts, remoteOpts := MakeRemoteRegistryRequestOptionsFromMirrorContext(mirrorCtx)
repo, err := name.NewRepository(mirrorCtx.DeckhouseRegistryRepo+"/release-channel", nameOpts...)
if err != nil {
return nil, fmt.Errorf("parsing repo: %v", err)
}
tags, err := remote.List(repo, remoteOpts...)
if err != nil {
return nil, fmt.Errorf("get tags from Deckhouse registry: %w", err)
}
return tags, nil
}
func parseAndFilterVersionsAboveMinimalAnbBelowAlpha(
minVersion *semver.Version,
tags []string,
alphaChannelVersion *semver.Version,
) []*semver.Version {
versionsAboveMinimal := make([]*semver.Version, 0)
for _, tag := range tags {
version, err := semver.NewVersion(tag)
if err != nil || minVersion.GreaterThan(version) || version.GreaterThan(alphaChannelVersion) {
continue
}
versionsAboveMinimal = append(versionsAboveMinimal, version)
}
return versionsAboveMinimal
}
func filterOnlyLatestPatches(versions []*semver.Version) []*semver.Version {
type majorMinor [2]uint64
patches := map[majorMinor]uint64{}
for _, version := range versions {
release := majorMinor{version.Major(), version.Minor()}
if patch := patches[release]; patch <= version.Patch() {
patches[release] = version.Patch()
}
}
topPatches := make([]*semver.Version, 0, len(patches))
for majMin, patch := range patches {
topPatches = append(topPatches, semver.MustParse(fmt.Sprintf("v%d.%d.%d", majMin[0], majMin[1], patch)))
}
return topPatches
}
func getReleaseChannelVersionFromRegistry(mirrorCtx *Context, releaseChannel string) (*semver.Version, error) {
nameOpts, remoteOpts := MakeRemoteRegistryRequestOptionsFromMirrorContext(mirrorCtx)
nameOpts = append(nameOpts, name.StrictValidation)
ref, err := name.ParseReference(mirrorCtx.DeckhouseRegistryRepo+"/release-channel:"+releaseChannel, nameOpts...)
if err != nil {
return nil, fmt.Errorf("parse rock solid release ref: %w", err)
}
rockSolidReleaseImage, err := remote.Image(ref, remoteOpts...)
if err != nil {
return nil, fmt.Errorf("get %s release channel data: %w", releaseChannel, err)
}
versionJSON, err := readFileFromImage(rockSolidReleaseImage, "version.json")
if err != nil {
return nil, fmt.Errorf("cannot get %s release channel version: %w", releaseChannel, err)
}
releaseInfo := &struct {
Version string `json:"version"`
Suspended bool `json:"suspend"`
}{}
if err = json.Unmarshal(versionJSON.Bytes(), releaseInfo); err != nil {
return nil, fmt.Errorf("cannot find release channel version: %w", err)
}
if releaseInfo.Suspended {
return nil, fmt.Errorf("Cannot mirror Deckhouse: source registry contains suspended release channel %q, try again later", releaseChannel)
}
ver, err := semver.NewVersion(releaseInfo.Version)
if err != nil {
return nil, fmt.Errorf("cannot find release channel version: %w", err)
}
return ver, nil
}
func deduplicateVersions(versions []*semver.Version) []semver.Version {
m := map[semver.Version]struct{}{}
for _, v := range versions {
m[*v] = struct{}{}
}
return maputil.Keys(m)
}