introduce basic fact collection

2025-07-20 23:14:21 -04:00
parent 62336753c6
commit 3a47fa6706
58 changed files with 2801 additions and 107 deletions
--- a/client/vendor/github.com/zcalusic/sysinfo/os.go
+++ b/client/vendor/github.com/zcalusic/sysinfo/os.go
@@ -0,0 +1,101 @@
+// Copyright © 2016 Zlatko Čalušić
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file.
+
+package sysinfo
+
+import (
+	"bufio"
+	"os"
+	"regexp"
+	"strings"
+)
+
+// OS information.
+type OS struct {
+	Name         string `json:"name,omitempty"`
+	Vendor       string `json:"vendor,omitempty"`
+	Version      string `json:"version,omitempty"`
+	Release      string `json:"release,omitempty"`
+	Architecture string `json:"architecture,omitempty"`
+}
+
+var (
+	rePrettyName = regexp.MustCompile(`^PRETTY_NAME=(.*)$`)
+	reID         = regexp.MustCompile(`^ID=(.*)$`)
+	reVersionID  = regexp.MustCompile(`^VERSION_ID=(.*)$`)
+	reUbuntu     = regexp.MustCompile(`[\( ]([\d\.]+)`)
+	reAlma       = regexp.MustCompile(`^AlmaLinux release ([\d\.]+)`)
+	reCentOS     = regexp.MustCompile(`^CentOS( Linux)? release ([\d\.]+)`)
+	reRocky      = regexp.MustCompile(`^Rocky Linux release ([\d\.]+)`)
+	reRedHat     = regexp.MustCompile(`[\( ]([\d\.]+)`)
+)
+
+func (si *SysInfo) getOSInfo() {
+	// This seems to be the best and most portable way to detect OS architecture (NOT kernel!)
+	if _, err := os.Stat("/lib64/ld-linux-x86-64.so.2"); err == nil {
+		si.OS.Architecture = "amd64"
+	} else if _, err := os.Stat("/lib/ld-linux.so.2"); err == nil {
+		si.OS.Architecture = "i386"
+	}
+
+	f, err := os.Open("/etc/os-release")
+	if err != nil {
+		return
+	}
+	defer f.Close()
+
+	s := bufio.NewScanner(f)
+	for s.Scan() {
+		if m := rePrettyName.FindStringSubmatch(s.Text()); m != nil {
+			si.OS.Name = strings.Trim(m[1], `"`)
+		} else if m := reID.FindStringSubmatch(s.Text()); m != nil {
+			si.OS.Vendor = strings.Trim(m[1], `"`)
+		} else if m := reVersionID.FindStringSubmatch(s.Text()); m != nil {
+			si.OS.Version = strings.Trim(m[1], `"`)
+		}
+	}
+
+	switch si.OS.Vendor {
+	case "debian":
+		si.OS.Release = slurpFile("/etc/debian_version")
+	case "ubuntu":
+		if m := reUbuntu.FindStringSubmatch(si.OS.Name); m != nil {
+			si.OS.Release = m[1]
+		}
+	case "almalinux":
+		if release := slurpFile("/etc/almalinux-release"); release != "" {
+			if m := reAlma.FindStringSubmatch(release); m != nil {
+				si.OS.Release = m[1]
+			}
+		}
+
+		si.OS.Version = strings.Split(si.OS.Release, ".")[0]
+	case "centos":
+		if release := slurpFile("/etc/centos-release"); release != "" {
+			if m := reCentOS.FindStringSubmatch(release); m != nil {
+				si.OS.Release = m[2]
+			}
+		}
+	case "rocky":
+		if release := slurpFile("/etc/rocky-release"); release != "" {
+			if m := reRocky.FindStringSubmatch(release); m != nil {
+				si.OS.Release = m[1]
+			}
+		}
+
+		si.OS.Version = strings.Split(si.OS.Release, ".")[0]
+
+	case "rhel":
+		if release := slurpFile("/etc/redhat-release"); release != "" {
+			if m := reRedHat.FindStringSubmatch(release); m != nil {
+				si.OS.Release = m[1]
+			}
+		}
+		if si.OS.Release == "" {
+			if m := reRedHat.FindStringSubmatch(si.OS.Name); m != nil {
+				si.OS.Release = m[1]
+			}
+		}
+	}
+}