mirror of
https://github.com/siderolabs/talos.git
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d9bdea2b54
Getting ready for the next Talos 1.5.0-alpha.0 release. Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
82 lines
3.0 KiB
Go
82 lines
3.0 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package compatibility
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import (
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"fmt"
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"github.com/hashicorp/go-version"
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"github.com/siderolabs/talos/pkg/machinery/api/machine"
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"github.com/siderolabs/talos/pkg/machinery/compatibility/talos12"
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"github.com/siderolabs/talos/pkg/machinery/compatibility/talos13"
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"github.com/siderolabs/talos/pkg/machinery/compatibility/talos14"
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"github.com/siderolabs/talos/pkg/machinery/compatibility/talos15"
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)
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// TalosVersion embeds Talos version.
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type TalosVersion struct {
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version version.Version
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majorMinor [2]int
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}
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// ParseTalosVersion parses Talos version.
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func ParseTalosVersion(v *machine.VersionInfo) (*TalosVersion, error) {
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parsed, err := version.NewVersion(v.Tag)
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if err != nil {
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return nil, err
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}
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return &TalosVersion{
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version: *parsed,
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majorMinor: [2]int{parsed.Segments()[0], parsed.Segments()[1]},
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}, nil
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}
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func (v *TalosVersion) String() string {
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return v.version.String()
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}
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// UpgradeableFrom checks if the current version of Talos can be used as an upgrade for the given host version.
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func (v *TalosVersion) UpgradeableFrom(host *TalosVersion) error {
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var (
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minHostUpgradeVersion, maxHostDowngradeVersion *version.Version
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deniedHostUpgradeVersions []*version.Version
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)
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switch v.majorMinor {
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case talos12.MajorMinor: // upgrades to 1.2.x
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minHostUpgradeVersion, maxHostDowngradeVersion = talos12.MinimumHostUpgradeVersion, talos12.MaximumHostDowngradeVersion
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deniedHostUpgradeVersions = talos12.DeniedHostUpgradeVersions
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case talos13.MajorMinor: // upgrades to 1.3.x
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minHostUpgradeVersion, maxHostDowngradeVersion = talos13.MinimumHostUpgradeVersion, talos13.MaximumHostDowngradeVersion
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deniedHostUpgradeVersions = talos13.DeniedHostUpgradeVersions
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case talos14.MajorMinor: // upgrades to 1.4.x
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minHostUpgradeVersion, maxHostDowngradeVersion = talos14.MinimumHostUpgradeVersion, talos14.MaximumHostDowngradeVersion
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deniedHostUpgradeVersions = talos14.DeniedHostUpgradeVersions
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case talos15.MajorMinor: // upgrades to 1.5.x
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minHostUpgradeVersion, maxHostDowngradeVersion = talos15.MinimumHostUpgradeVersion, talos15.MaximumHostDowngradeVersion
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deniedHostUpgradeVersions = talos15.DeniedHostUpgradeVersions
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default:
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return fmt.Errorf("upgrades to version %s are not supported", v.version.String())
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}
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if host.version.Core().LessThan(minHostUpgradeVersion) {
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return fmt.Errorf("host version %s is too old to upgrade to Talos %s", host.version.String(), v.version.String())
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}
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if host.version.Core().GreaterThanOrEqual(maxHostDowngradeVersion) {
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return fmt.Errorf("host version %s is too new to downgrade to Talos %s", host.version.String(), v.version.String())
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}
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for _, denied := range deniedHostUpgradeVersions {
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if host.version.Equal(denied) {
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return fmt.Errorf("host version %s is denied for upgrade to Talos %s", host.version.String(), v.version.String())
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}
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}
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return nil
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}
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