mirror of
https://github.com/ceph/ceph-csi.git
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49 lines
1.4 KiB
Go
49 lines
1.4 KiB
Go
/*
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Copyright 2023 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package kernel
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import (
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"fmt"
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"os"
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"strings"
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"k8s.io/apimachinery/pkg/util/version"
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)
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type readFileFunc func(string) ([]byte, error)
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// GetVersion returns currently running kernel version.
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func GetVersion() (*version.Version, error) {
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return getVersion(os.ReadFile)
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}
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// getVersion reads os release file from the give readFile function.
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func getVersion(readFile readFileFunc) (*version.Version, error) {
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kernelVersionFile := "/proc/sys/kernel/osrelease"
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fileContent, err := readFile(kernelVersionFile)
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if err != nil {
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return nil, fmt.Errorf("failed to read os-release file: %s", err.Error())
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}
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kernelVersion, err := version.ParseGeneric(strings.TrimSpace(string(fileContent)))
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if err != nil {
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return nil, fmt.Errorf("failed to parse kernel version: %s", err.Error())
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}
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return kernelVersion, nil
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}
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