mirror of
https://github.com/kubernetes/node-problem-detector.git
synced 2026-02-14 18:09:57 +00:00
91 lines
2.8 KiB
Go
91 lines
2.8 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors All rights reserved.
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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 util
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import (
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"fmt"
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"syscall"
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"time"
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"github.com/acobaugh/osrelease"
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)
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const (
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osReleasePath = "/etc/os-release"
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)
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// GetUptimeDuration returns the time elapsed since last boot.
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func GetUptimeDuration() (time.Duration, error) {
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var info syscall.Sysinfo_t
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if err := syscall.Sysinfo(&info); err != nil {
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return 0, fmt.Errorf("failed to get system info: %v", err)
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}
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return time.Duration(info.Uptime) * time.Second, nil
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}
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// GetOSVersion retrieves the version of the current operating system.
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// For example: "cos 77-12293.0.0", "ubuntu 16.04.6 LTS (Xenial Xerus)".
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func GetOSVersion() (string, error) {
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return getOSVersion(osReleasePath)
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}
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func getOSVersion(osReleasePath string) (string, error) {
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osReleaseMap, err := osrelease.ReadFile(osReleasePath)
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if err != nil {
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return "", err
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}
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switch osReleaseMap["ID"] {
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case "cos":
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return getCOSVersion(osReleaseMap), nil
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case "debian":
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return getDebianVersion(osReleaseMap), nil
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case "ubuntu":
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return getDebianVersion(osReleaseMap), nil
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case "centos":
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return getDebianVersion(osReleaseMap), nil
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case "rocky":
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return getDebianVersion(osReleaseMap), nil
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case "rhel":
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return getDebianVersion(osReleaseMap), nil
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case "ol":
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return getDebianVersion(osReleaseMap), nil
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case "amzn":
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return getDebianVersion(osReleaseMap), nil
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case "sles":
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return getDebianVersion(osReleaseMap), nil
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case "mariner":
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return getDebianVersion(osReleaseMap), nil
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case "azurelinux":
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return getDebianVersion(osReleaseMap), nil
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case "flatcar":
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return getDebianVersion(osReleaseMap), nil
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default:
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return "", fmt.Errorf("unsupported ID in /etc/os-release: %q", osReleaseMap["ID"])
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}
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}
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func getCOSVersion(osReleaseMap map[string]string) string {
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// /etc/os-release syntax for COS is defined here:
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// https://chromium.git.corp.google.com/chromiumos/docs/+/8edec95a297edfd8f1290f0f03a8aa35795b516b/os_config.md
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return fmt.Sprintf("%s %s-%s", osReleaseMap["ID"], osReleaseMap["VERSION"], osReleaseMap["BUILD_ID"])
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}
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func getDebianVersion(osReleaseMap map[string]string) string {
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// /etc/os-release syntax for Debian is defined here:
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// https://manpages.debian.org/testing/systemd/os-release.5.en.html
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return fmt.Sprintf("%s %s", osReleaseMap["ID"], osReleaseMap["VERSION"])
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}
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