intel-device-plugins-for-ku.../pkg/apis/deviceplugin/v1/webhook_common.go
Mikko Ylinen c6b947e594 webhooks: use common constant for plugin min version
Move CRD validating webhooks' image min version checks to use
common constant across all the plugins.

After the change, we carry the same min version for all devices
and this version becomes easier to maintain when we make new
releases.

Each CRD webhook still carries its own xyzMinVersion if we decide
to go back to CRD specific versions later.

Signed-off-by: Mikko Ylinen <mikko.ylinen@intel.com>
2021-09-13 18:28:17 +03:00

56 lines
1.6 KiB
Go

// Copyright 2020 Intel Corporation. All Rights Reserved.
//
// 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 v1
import (
"path/filepath"
"strings"
"github.com/pkg/errors"
"k8s.io/apimachinery/pkg/util/version"
)
// common constants for webhooks.
const imageMinVersion string = "0.21.0"
// common functions for webhooks
func validatePluginImage(image, expectedImageName string, expectedMinVersion *version.Version) error {
// Ignore registry, vendor and extract the image name with the tag
parts := strings.SplitN(filepath.Base(image), ":", 2)
if len(parts) != 2 {
return errors.Errorf("incorrect image field %q", image)
}
imageName := parts[0]
versionStr := parts[1]
if imageName != expectedImageName {
return errors.Errorf("incorrect image name %q. Make sure you use '<vendor>/%s:<version>'", imageName, expectedImageName)
}
ver, err := version.ParseSemantic(versionStr)
if err != nil {
return errors.Wrapf(err, "unable to parse version %q", versionStr)
}
if !ver.AtLeast(expectedMinVersion) {
return errors.Errorf("version %q is too low. Should be at least %q", ver, expectedMinVersion)
}
return nil
}