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out-of-tree/distro/debian/debian.go

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package debian
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import (
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"errors"
"fmt"
"os"
"path/filepath"
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"regexp"
"strings"
"github.com/rs/zerolog/log"
"code.dumpstack.io/tools/out-of-tree/config"
"code.dumpstack.io/tools/out-of-tree/container"
"code.dumpstack.io/tools/out-of-tree/fs"
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)
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type Release int
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const (
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None Release = iota
Buzz
Hamm
Woody
Etch
Lenny
Squeeze
Wheezy
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Jessie
Stretch
Buster
Bullseye
Bookworm
)
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var ReleaseStrings = [...]string{
"",
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"buzz",
"hamm",
"woody",
"etch",
"lenny",
"squeeze",
"wheezy",
"jessie",
"stretch",
"buster",
"bullseye",
"bookworm",
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}
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func (cn Release) String() string {
return ReleaseStrings[cn]
}
func releaseFromString(s string) (r Release) {
switch strings.ToLower(s) {
case "7", "wheezy":
r = Wheezy
case "8", "jessie":
r = Jessie
case "9", "stretch":
r = Stretch
case "10", "buster":
r = Buster
case "11", "bullseye":
r = Bullseye
default:
r = None
}
return
}
func kernelRelease(deb string) (r Release, err error) {
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// linux-image-4.17.0-2-amd64 -> 4.17
re := regexp.MustCompile(`([0-9]*\.[0-9]*)`)
sver := re.FindString(deb)
if sver == "" {
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err = errors.New("empty result")
return
}
version := kver(sver)
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if version.LessThan(kver("3.0-rc0")) {
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err = errors.New("not supported")
return
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}
if version.LessThan(kver("3.8-rc0")) {
// Wheezy 3.2
// >=3.8 breaks initramfs-tools << 0.110~
// Wheezy initramfs-tools version is 0.109.1
r = Wheezy
} else if version.LessThan(kver("4.9-rc0")) {
// Jessie 3.16
r = Jessie
} else if version.LessThan(kver("4.19-rc0")) {
// Stretch 4.9
r = Stretch
} else if version.LessThan(kver("5.10-rc0")) {
// Buster 4.19
r = Buster
} else {
// Bullseye 5.10
r = Bullseye
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}
return
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}
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func MatchImagePkg(km config.KernelMask) (pkgs []string, err error) {
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kernels, err := GetKernels()
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if err != nil {
log.Error().Err(err).Msg("get kernels")
return
}
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release := releaseFromString(km.DistroRelease)
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r := regexp.MustCompile(km.ReleaseMask)
for _, dk := range kernels {
p := strings.Replace(dk.Image.Deb.Name, ".deb", "", -1)
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var kr Release
kr, err = kernelRelease(p)
if err != nil {
log.Warn().Err(err).Msg("")
continue
}
if kr != release {
continue
}
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if r.MatchString(p) {
pkgs = append(pkgs, p)
}
}
return
}
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func ContainerEnvs(km config.KernelMask) (envs []string) {
envs = append(envs, "DEBIAN_FRONTEND=noninteractive")
return
}
func ContainerImage(km config.KernelMask) (image string) {
image += "debian:"
switch releaseFromString(km.DistroRelease) {
case Wheezy:
image += "wheezy-20190228"
case Jessie:
image += "jessie-20210326"
case Stretch:
image += "stretch-20220622"
default:
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image += km.DistroRelease
}
return
}
func repositories(release Release) (repos []string) {
var snapshot string
switch release {
// Latest snapshots that include release
case Wheezy:
// doesn't include snapshot repos in /etc/apt/source.list
snapshot = "20190321T212815Z"
// case Jessie:
// snapshot = "20230322T152120Z"
// case Stretch:
// snapshot = "20230423T032533Z"
default:
return
}
repo := func(archive, s string) {
format := "deb [check-valid-until=no trusted=yes] " +
"http://snapshot.debian.org/archive/%s/%s " +
"%s%s main"
r := fmt.Sprintf(format, archive, snapshot, release, s)
repos = append(repos, r)
}
repo("debian", "")
repo("debian", "-updates")
repo("debian-security", "/updates")
return
}
func ContainerCommands(km config.KernelMask) (commands []string) {
release := releaseFromString(km.DistroRelease)
cmdf := func(f string, s ...interface{}) {
commands = append(commands, fmt.Sprintf(f, s...))
}
repos := repositories(release)
if len(repos) != 0 {
cmdf("rm /etc/apt/sources.list")
for _, repo := range repos {
cmdf("echo '%s' >> /etc/apt/sources.list", repo)
}
} else {
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cmdf("sed -i " +
"-e '/snapshot/!d' " +
"-e 's/# deb/deb [check-valid-until=no trusted=yes]/' " +
"/etc/apt/sources.list")
}
cmdf("apt-get update")
cmdf("apt-get install -y wget build-essential libelf-dev git")
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cmdf("apt-get install -y kmod linux-base")
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cmdf("apt-get install -y initramfs-tools")
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if release < 9 {
cmdf("apt-get install -y module-init-tools")
}
cmdf("mkdir -p /lib/modules")
return
}
func ContainerKernels(d container.Image, kcfg *config.KernelConfig) (err error) {
path := config.Dir("volumes", d.Name)
rootfs := config.File("images", d.Name+".img")
files, err := os.ReadDir(path)
if err != nil {
return
}
for _, file := range files {
if !strings.Contains(file.Name(), "linux-image") {
continue
}
pkgname := file.Name()
kpkgdir := filepath.Join(path, pkgname)
bootdir := filepath.Join(kpkgdir, "boot")
vmlinuz, err := fs.FindBySubstring(bootdir, "vmlinuz")
if err != nil {
log.Warn().Msgf("cannot find vmlinuz for %s", pkgname)
continue
}
initrd, err := fs.FindBySubstring(bootdir, "initrd")
if err != nil {
log.Warn().Msgf("cannot find initrd for %s", pkgname)
continue
}
modulesdir := filepath.Join(kpkgdir, "lib/modules")
modules, err := fs.FindBySubstring(modulesdir, "")
if err != nil {
log.Warn().Msgf("cannot find modules for %s", pkgname)
continue
}
log.Debug().Msgf("%s %s %s", vmlinuz, initrd, modules)
ki := config.KernelInfo{
DistroType: d.DistroType,
DistroRelease: d.DistroRelease,
KernelRelease: pkgname,
ContainerName: d.Name,
KernelPath: vmlinuz,
InitrdPath: initrd,
ModulesPath: modules,
RootFS: rootfs,
}
kcfg.Kernels = append(kcfg.Kernels, ki)
}
return
}