intel-device-plugins-for-ku.../pkg/apis/deviceplugin/v1/webhook_common.go
Ukri Niemimuukko c935570bab operator: GPU-plugin initImage
This adds the initImage field to the custom resource definition
and takes it into use.

The fpga webhook image validation function is split off into a
separate file.

Signed-off-by: Ukri Niemimuukko <ukri.niemimuukko@intel.com>
2020-11-09 20:55:12 +02:00

51 lines
1.5 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 (
"strings"
"github.com/pkg/errors"
"k8s.io/apimachinery/pkg/util/version"
)
// common functions for webhooks
func validatePluginImage(image, expectedName string, expectedMinVersion *version.Version) error {
parts := strings.SplitN(image, ":", 2)
if len(parts) != 2 {
return errors.Errorf("incorrect image field %q", image)
}
namespacedName := parts[0]
versionStr := parts[1]
parts = strings.Split(namespacedName, "/")
name := parts[len(parts)-1]
if name != expectedName {
return errors.Errorf("incorrect image name %q. Make sure you use '<vendor>/%s:<version>'", name, expectedName)
}
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
}