refactor: move kernel functions to submodule
This commit is contained in:
@@ -1,7 +0,0 @@
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// Copyright 2019 Mikhail Klementev. All rights reserved.
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// Use of this source code is governed by a AGPLv3 license
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// (or later) that can be found in the LICENSE file.
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package main
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const imagesBaseURL = "https://out-of-tree.fra1.digitaloceanspaces.com/1.0.0/"
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52
images.go
52
images.go
@@ -1,4 +1,4 @@
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// Copyright 2019 Mikhail Klementev. All rights reserved.
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// Copyright 2023 Mikhail Klementev. All rights reserved.
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// Use of this source code is governed by a AGPLv3 license
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// (or later) that can be found in the LICENSE file.
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@@ -7,17 +7,11 @@ package main
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import (
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"errors"
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"fmt"
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"io/ioutil"
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"net/url"
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"os"
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"os/exec"
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"os/user"
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"strings"
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"time"
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"github.com/cavaliergopher/grab/v3"
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"github.com/rs/zerolog/log"
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"code.dumpstack.io/tools/out-of-tree/config"
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"code.dumpstack.io/tools/out-of-tree/fs"
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"code.dumpstack.io/tools/out-of-tree/qemu"
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@@ -126,47 +120,3 @@ func (cmd *ImageEditCmd) Run(g *Globals) (err error) {
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}
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return
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}
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func unpackTar(archive, destination string) (err error) {
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// NOTE: If you're change anything in tar command please check also
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// BSD tar (or if you're using macOS, do not forget to check GNU Tar)
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// Also make sure that sparse files are extracting correctly
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cmd := exec.Command("tar", "-Sxf", archive)
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cmd.Dir = destination + "/"
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log.Debug().Msgf("%v", cmd)
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rawOutput, err := cmd.CombinedOutput()
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if err != nil {
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err = fmt.Errorf("%v: %s", err, rawOutput)
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return
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}
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return
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}
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func downloadImage(path, file string) (err error) {
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tmp, err := ioutil.TempDir(tempDirBase, "out-of-tree_")
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if err != nil {
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return
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}
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defer os.RemoveAll(tmp)
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fileurl, err := url.JoinPath(imagesBaseURL, file+".tar.gz")
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if err != nil {
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return
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}
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resp, err := grab.Get(tmp, fileurl)
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if err != nil {
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err = fmt.Errorf("Cannot download %s. It looks like you need "+
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"to generate it manually and place it "+
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"to ~/.out-of-tree/images/. "+
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"Check documentation for additional information.",
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fileurl)
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return
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}
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err = unpackTar(resp.Filename, path)
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return
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}
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@@ -1,29 +0,0 @@
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package main
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import (
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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"code.dumpstack.io/tools/out-of-tree/fs"
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)
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func TestDownloadImage(t *testing.T) {
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tmp, err := ioutil.TempDir("", "out-of-tree_")
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if err != nil {
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return
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}
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defer os.RemoveAll(tmp)
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file := "out_of_tree_ubuntu_12__04.img"
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err = downloadImage(tmp, file)
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if err != nil {
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t.Fatal(err)
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}
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if !fs.PathExists(filepath.Join(tmp, file)) {
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t.Fatalf("%s does not exist", file)
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}
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}
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701
kernel.go
701
kernel.go
@@ -7,24 +7,13 @@ package main
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import (
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"errors"
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"fmt"
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"io/ioutil"
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"math"
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"math/rand"
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"os"
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"os/exec"
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"os/signal"
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"os/user"
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"regexp"
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"runtime"
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"strings"
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"time"
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"github.com/naoina/toml"
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"github.com/rs/zerolog/log"
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"code.dumpstack.io/tools/out-of-tree/config"
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"code.dumpstack.io/tools/out-of-tree/container"
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"code.dumpstack.io/tools/out-of-tree/fs"
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"code.dumpstack.io/tools/out-of-tree/kernel"
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)
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type KernelCmd struct {
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@@ -80,12 +69,12 @@ func (cmd *KernelListRemoteCmd) Run(kernelCmd *KernelCmd, g *Globals) (err error
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ReleaseMask: ".*",
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}
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_, err = genRootfsImage(container.Image{Name: km.DockerName()}, false)
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_, err = kernel.GenRootfsImage(container.Image{Name: km.DockerName()}, false)
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if err != nil {
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return
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}
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err = generateBaseDockerImage(
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err = kernel.GenerateBaseDockerImage(
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g.Config.Docker.Registry,
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g.Config.Docker.Commands,
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km,
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@@ -95,7 +84,8 @@ func (cmd *KernelListRemoteCmd) Run(kernelCmd *KernelCmd, g *Globals) (err error
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return
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}
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pkgs, err := matchPackages(km)
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pkgs, err := kernel.MatchPackages(km)
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// error check skipped on purpose
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for _, k := range pkgs {
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fmt.Println(k)
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@@ -115,7 +105,7 @@ func (cmd KernelAutogenCmd) Run(kernelCmd *KernelCmd, g *Globals) (err error) {
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}
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shutdown := false
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setSigintHandler(&shutdown)
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kernel.SetSigintHandler(&shutdown)
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for _, sk := range ka.SupportedKernels {
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if sk.DistroRelease == "" {
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@@ -123,7 +113,7 @@ func (cmd KernelAutogenCmd) Run(kernelCmd *KernelCmd, g *Globals) (err error) {
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return
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}
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err = generateKernels(sk,
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err = kernel.GenerateKernels(sk,
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g.Config.Docker.Registry,
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g.Config.Docker.Commands,
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cmd.Max, kernelCmd.Retries,
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@@ -142,7 +132,7 @@ func (cmd KernelAutogenCmd) Run(kernelCmd *KernelCmd, g *Globals) (err error) {
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}
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}
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return updateKernelsCfg(kernelCmd.UseHost, !kernelCmd.NoDownload)
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return kernel.UpdateKernelsCfg(kernelCmd.UseHost, !kernelCmd.NoDownload)
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}
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type KernelGenallCmd struct {
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@@ -157,14 +147,14 @@ func (cmd *KernelGenallCmd) Run(kernelCmd *KernelCmd, g *Globals) (err error) {
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}
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shutdown := false
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setSigintHandler(&shutdown)
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kernel.SetSigintHandler(&shutdown)
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km := config.KernelMask{
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DistroType: distroType,
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DistroRelease: cmd.Ver,
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ReleaseMask: ".*",
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}
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err = generateKernels(km,
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err = kernel.GenerateKernels(km,
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g.Config.Docker.Registry,
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g.Config.Docker.Commands,
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math.MaxUint32, kernelCmd.Retries,
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@@ -179,7 +169,7 @@ func (cmd *KernelGenallCmd) Run(kernelCmd *KernelCmd, g *Globals) (err error) {
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return
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}
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return updateKernelsCfg(kernelCmd.UseHost, !kernelCmd.NoDownload)
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return kernel.UpdateKernelsCfg(kernelCmd.UseHost, !kernelCmd.NoDownload)
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}
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type KernelInstallCmd struct {
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@@ -195,14 +185,14 @@ func (cmd *KernelInstallCmd) Run(kernelCmd *KernelCmd, g *Globals) (err error) {
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}
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shutdown := false
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setSigintHandler(&shutdown)
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kernel.SetSigintHandler(&shutdown)
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km := config.KernelMask{
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DistroType: distroType,
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DistroRelease: cmd.Ver,
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ReleaseMask: cmd.Kernel,
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}
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err = generateKernels(km,
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err = kernel.GenerateKernels(km,
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g.Config.Docker.Registry,
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g.Config.Docker.Commands,
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math.MaxUint32, kernelCmd.Retries,
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@@ -217,672 +207,11 @@ func (cmd *KernelInstallCmd) Run(kernelCmd *KernelCmd, g *Globals) (err error) {
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return
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}
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return updateKernelsCfg(kernelCmd.UseHost, !kernelCmd.NoDownload)
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return kernel.UpdateKernelsCfg(kernelCmd.UseHost, !kernelCmd.NoDownload)
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}
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type KernelConfigRegenCmd struct{}
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func (cmd *KernelConfigRegenCmd) Run(kernelCmd *KernelCmd, g *Globals) (err error) {
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return updateKernelsCfg(kernelCmd.UseHost, !kernelCmd.NoDownload)
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}
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func matchDebImagePkg(containerName, mask string) (pkgs []string, err error) {
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cmd := "apt-cache search --names-only '^linux-image-[0-9\\.\\-]*-generic' | awk '{ print $1 }'"
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// FIXME timeout should be in global out-of-tree config
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c, err := container.New(containerName, time.Hour)
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if err != nil {
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return
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}
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output, err := c.Run(tempDirBase, cmd)
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if err != nil {
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return
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}
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r, err := regexp.Compile("linux-image-" + mask)
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if err != nil {
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return
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}
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for _, pkg := range strings.Fields(output) {
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if r.MatchString(pkg) || strings.Contains(pkg, mask) {
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pkgs = append(pkgs, pkg)
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}
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}
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return
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}
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func matchOracleLinuxPkg(containerName, mask string) (
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pkgs []string, err error) {
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cmd := "yum search kernel --showduplicates " +
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"| grep '^kernel-[0-9]\\|^kernel-uek-[0-9]' " +
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"| grep -v src " +
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"| cut -d ' ' -f 1"
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// FIXME timeout should be in global out-of-tree config
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c, err := container.New(containerName, time.Hour)
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if err != nil {
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return
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}
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output, err := c.Run(tempDirBase, cmd)
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if err != nil {
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return
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}
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r, err := regexp.Compile("kernel-" + mask)
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if err != nil {
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return
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}
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for _, pkg := range strings.Fields(output) {
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if r.MatchString(pkg) || strings.Contains(pkg, mask) {
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log.Trace().Msg(pkg)
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pkgs = append(pkgs, pkg)
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}
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}
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if len(pkgs) == 0 {
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log.Warn().Msg("no packages matched")
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}
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return
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}
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func matchPackages(km config.KernelMask) (pkgs []string, err error) {
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switch km.DistroType {
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case config.Ubuntu:
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pkgs, err = matchDebImagePkg(km.DockerName(), km.ReleaseMask)
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case config.OracleLinux, config.CentOS:
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pkgs, err = matchOracleLinuxPkg(km.DockerName(), km.ReleaseMask)
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default:
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err = fmt.Errorf("%s not yet supported", km.DistroType.String())
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}
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return
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}
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func dockerImagePath(sk config.KernelMask) (path string, err error) {
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usr, err := user.Current()
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if err != nil {
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return
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}
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path = usr.HomeDir + "/.out-of-tree/containers/"
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path += sk.DistroType.String() + "/" + sk.DistroRelease
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return
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}
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func vsyscallAvailable() (available bool, err error) {
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if runtime.GOOS != "linux" {
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// Docker for non-Linux systems is not using the host
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// kernel but uses kernel inside a virtual machine, so
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// it builds by the Docker team with vsyscall support.
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available = true
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return
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}
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buf, err := ioutil.ReadFile("/proc/self/maps")
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if err != nil {
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return
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}
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available = strings.Contains(string(buf), "[vsyscall]")
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return
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}
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func generateBaseDockerImage(registry string, commands []config.DockerCommand,
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sk config.KernelMask, forceUpdate bool) (err error) {
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imagePath, err := dockerImagePath(sk)
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if err != nil {
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return
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}
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dockerPath := imagePath + "/Dockerfile"
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d := "# BASE\n"
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// TODO move as function to container.go
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cmd := exec.Command(container.Runtime, "images", "-q", sk.DockerName())
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log.Debug().Msgf("run %v", cmd)
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rawOutput, err := cmd.CombinedOutput()
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if err != nil {
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return
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}
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if fs.PathExists(dockerPath) && string(rawOutput) != "" {
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log.Info().Msgf("Base image for %s:%s found",
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sk.DistroType.String(), sk.DistroRelease)
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if !forceUpdate {
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return
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} else {
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log.Info().Msgf("Update Containerfile")
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}
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}
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log.Info().Msgf("Base image for %s:%s not found, start generating",
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sk.DistroType.String(), sk.DistroRelease)
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os.MkdirAll(imagePath, os.ModePerm)
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d += "FROM "
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if registry != "" {
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d += registry + "/"
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}
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d += fmt.Sprintf("%s:%s\n",
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strings.ToLower(sk.DistroType.String()),
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sk.DistroRelease,
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)
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for _, c := range commands {
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d += "RUN " + c.Command + "\n"
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}
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switch sk.DistroType {
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case config.Ubuntu:
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if sk.DistroRelease < "14.04" {
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d += "RUN sed -i 's/archive.ubuntu.com/old-releases.ubuntu.com/' /etc/apt/sources.list\n"
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}
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d += "ENV DEBIAN_FRONTEND=noninteractive\n"
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d += "RUN apt-get update\n"
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d += "RUN apt-get install -y build-essential libelf-dev\n"
|
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d += "RUN apt-get install -y wget git\n"
|
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// Install a single kernel and headers to ensure all dependencies are cached
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if sk.DistroRelease >= "14.04" {
|
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d += "RUN export PKGNAME=$(apt-cache search --names-only '^linux-headers-[0-9\\.\\-]*-generic' | awk '{ print $1 }' | head -n 1); " +
|
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"apt-get install -y $PKGNAME $(echo $PKGNAME | sed 's/headers/image/'); " +
|
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"apt-get remove -y $PKGNAME $(echo $PKGNAME | sed 's/headers/image/')\n"
|
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d += "RUN apt-get install -y libseccomp-dev\n"
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}
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d += "RUN mkdir -p /lib/modules\n"
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case config.CentOS:
|
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var repos []string
|
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|
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switch sk.DistroRelease {
|
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case "6":
|
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repofmt := "[6.%d-%s]\\nbaseurl=https://vault.centos.org/6.%d/%s/$basearch/\\ngpgcheck=0"
|
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for i := 0; i <= 10; i++ {
|
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repos = append(repos, fmt.Sprintf(repofmt, i, "os", i, "os"))
|
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repos = append(repos, fmt.Sprintf(repofmt, i, "updates", i, "updates"))
|
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}
|
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d += "RUN rm /etc/yum.repos.d/*\n"
|
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case "7":
|
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repofmt := "[%s-%s]\\nbaseurl=https://vault.centos.org/%s/%s/$basearch/\\ngpgcheck=0"
|
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for _, ver := range []string{
|
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"7.0.1406", "7.1.1503", "7.2.1511",
|
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"7.3.1611", "7.4.1708", "7.5.1804",
|
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"7.6.1810", "7.7.1908", "7.8.2003",
|
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} {
|
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repos = append(repos, fmt.Sprintf(repofmt, ver, "os", ver, "os"))
|
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repos = append(repos, fmt.Sprintf(repofmt, ver, "updates", ver, "updates"))
|
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}
|
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|
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// FIXME http/gpgcheck=0
|
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repofmt = "[%s-%s]\\nbaseurl=http://mirror.centos.org/centos-7/%s/%s/$basearch/\\ngpgcheck=0"
|
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repos = append(repos, fmt.Sprintf(repofmt, "7.9.2009", "os", "7.9.2009", "os"))
|
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repos = append(repos, fmt.Sprintf(repofmt, "7.9.2009", "updates", "7.9.2009", "updates"))
|
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case "8":
|
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repofmt := "[%s]\\nbaseurl=https://vault.centos.org/%s/BaseOS/$basearch/os/\\ngpgcheck=0"
|
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|
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for _, ver := range []string{
|
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"8.0.1905", "8.1.1911", "8.2.2004",
|
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"8.3.2011", "8.4.2105", "8.5.2111",
|
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} {
|
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repos = append(repos, fmt.Sprintf(repofmt, ver, ver))
|
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}
|
||||
default:
|
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err = fmt.Errorf("no support for %s %s", sk.DistroType, sk.DistroRelease)
|
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return
|
||||
}
|
||||
|
||||
d += "RUN sed -i 's/enabled=1/enabled=0/' /etc/yum.repos.d/* || true\n"
|
||||
|
||||
for _, repo := range repos {
|
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d += fmt.Sprintf("RUN echo -e '%s' >> /etc/yum.repos.d/oot.repo\n", repo)
|
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}
|
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|
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// do not remove old kernels
|
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d += "RUN sed -i 's;installonly_limit=;installonly_limit=100500;' /etc/yum.conf\n"
|
||||
d += "RUN yum -y update\n"
|
||||
|
||||
d += "RUN yum -y groupinstall 'Development Tools'\n"
|
||||
|
||||
if sk.DistroRelease < "8" {
|
||||
d += "RUN yum -y install deltarpm\n"
|
||||
} else {
|
||||
d += "RUN yum -y install grub2-tools-minimal " +
|
||||
"elfutils-libelf-devel\n"
|
||||
}
|
||||
|
||||
var flags string
|
||||
if sk.DistroRelease >= "8" {
|
||||
flags = "--noautoremove"
|
||||
}
|
||||
|
||||
// Cache kernel package dependencies
|
||||
d += "RUN export PKGNAME=$(yum search kernel-devel --showduplicates | grep '^kernel-devel' | cut -d ' ' -f 1 | head -n 1); " +
|
||||
"yum -y install $PKGNAME $(echo $PKGNAME | sed 's/-devel//'); " +
|
||||
fmt.Sprintf("yum -y remove $PKGNAME "+
|
||||
"$(echo $PKGNAME | sed 's/-devel//') "+
|
||||
"$(echo $PKGNAME | sed 's/-devel/-modules/') "+
|
||||
"$(echo $PKGNAME | sed 's/-devel/-core/') %s\n", flags)
|
||||
case config.OracleLinux:
|
||||
if sk.DistroRelease < "6" {
|
||||
err = fmt.Errorf("no support for pre-EL6")
|
||||
return
|
||||
}
|
||||
d += "RUN sed -i 's/enabled=0/enabled=1/' /etc/yum.repos.d/*\n"
|
||||
d += "RUN sed -i 's;installonly_limit=;installonly_limit=100500;' /etc/yum.conf /etc/dnf/dnf.conf || true\n"
|
||||
d += "RUN yum -y update\n"
|
||||
d += "RUN yum -y groupinstall 'Development Tools'\n"
|
||||
packages := "linux-firmware grubby"
|
||||
if sk.DistroRelease <= "7" {
|
||||
packages += " libdtrace-ctf"
|
||||
}
|
||||
d += fmt.Sprintf("RUN yum -y install %s\n", packages)
|
||||
default:
|
||||
err = fmt.Errorf("%s not yet supported", sk.DistroType.String())
|
||||
return
|
||||
}
|
||||
|
||||
d += "# END BASE\n\n"
|
||||
|
||||
err = ioutil.WriteFile(dockerPath, []byte(d), 0644)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
c, err := container.New(sk.DockerName(), time.Hour)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
output, err := c.Build(imagePath)
|
||||
if err != nil {
|
||||
log.Error().Err(err).Msgf("Base image for %s:%s generating error",
|
||||
sk.DistroType.String(), sk.DistroRelease)
|
||||
log.Fatal().Msg(output)
|
||||
return
|
||||
}
|
||||
|
||||
log.Info().Msgf("Base image for %s:%s generating success",
|
||||
sk.DistroType.String(), sk.DistroRelease)
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func installKernel(sk config.KernelMask, pkgname string, force, headers bool) (err error) {
|
||||
slog := log.With().
|
||||
Str("distro_type", sk.DistroType.String()).
|
||||
Str("distro_release", sk.DistroRelease).
|
||||
Str("pkg", pkgname).
|
||||
Logger()
|
||||
|
||||
c, err := container.New(sk.DockerName(), time.Hour) // TODO conf
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
moddirs, err := ioutil.ReadDir(c.Volumes.LibModules)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
for _, krel := range moddirs {
|
||||
if strings.Contains(pkgname, krel.Name()) {
|
||||
if force {
|
||||
slog.Info().Msg("Reinstall")
|
||||
} else {
|
||||
slog.Info().Msg("Already installed")
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
volumes := c.Volumes
|
||||
|
||||
c.Volumes.LibModules = ""
|
||||
c.Volumes.UsrSrc = ""
|
||||
c.Volumes.Boot = ""
|
||||
|
||||
slog.Debug().Msgf("Installing kernel")
|
||||
|
||||
cmd := "true"
|
||||
|
||||
switch sk.DistroType {
|
||||
case config.Ubuntu:
|
||||
var headerspkg string
|
||||
if headers {
|
||||
headerspkg = strings.Replace(pkgname, "image", "headers", -1)
|
||||
}
|
||||
|
||||
cmd += fmt.Sprintf(" && apt-get install -y %s %s", pkgname, headerspkg)
|
||||
case config.OracleLinux, config.CentOS:
|
||||
var headerspkg string
|
||||
if headers {
|
||||
if strings.Contains(pkgname, "uek") {
|
||||
headerspkg = strings.Replace(pkgname,
|
||||
"kernel-uek", "kernel-uek-devel", -1)
|
||||
} else {
|
||||
headerspkg = strings.Replace(pkgname,
|
||||
"kernel", "kernel-devel", -1)
|
||||
}
|
||||
}
|
||||
|
||||
cmd += fmt.Sprintf(" && yum -y install %s %s", pkgname, headerspkg)
|
||||
|
||||
var version string
|
||||
if strings.Contains(pkgname, "uek") {
|
||||
version = strings.Replace(pkgname, "kernel-uek-", "", -1)
|
||||
} else {
|
||||
version = strings.Replace(pkgname, "kernel-", "", -1)
|
||||
}
|
||||
|
||||
if sk.DistroRelease <= "7" {
|
||||
cmd += fmt.Sprintf(" && dracut -v --add-drivers 'e1000 ext4' -f "+
|
||||
"/boot/initramfs-%s.img %s", version, version)
|
||||
} else {
|
||||
cmd += fmt.Sprintf(" && dracut -v --add-drivers 'ata_piix libata' --force-drivers 'e1000 ext4 sd_mod' -f "+
|
||||
"/boot/initramfs-%s.img %s", version, version)
|
||||
}
|
||||
default:
|
||||
err = fmt.Errorf("%s not yet supported", sk.DistroType.String())
|
||||
return
|
||||
}
|
||||
|
||||
c.Args = append(c.Args, "-v", volumes.LibModules+":/target/lib/modules")
|
||||
c.Args = append(c.Args, "-v", volumes.UsrSrc+":/target/usr/src")
|
||||
c.Args = append(c.Args, "-v", volumes.Boot+":/target/boot")
|
||||
|
||||
cmd += " && cp -r /boot /target/"
|
||||
cmd += " && cp -r /lib/modules /target/lib/"
|
||||
cmd += " && cp -r /usr/src /target/usr/"
|
||||
|
||||
_, err = c.Run("", cmd)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
slog.Debug().Msgf("Success")
|
||||
return
|
||||
}
|
||||
|
||||
func findKernelFile(files []os.FileInfo, kname string) (name string, err error) {
|
||||
for _, file := range files {
|
||||
if strings.HasPrefix(file.Name(), "vmlinuz") {
|
||||
if strings.Contains(file.Name(), kname) {
|
||||
name = file.Name()
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
err = errors.New("cannot find kernel")
|
||||
return
|
||||
}
|
||||
|
||||
func findInitrdFile(files []os.FileInfo, kname string) (name string, err error) {
|
||||
for _, file := range files {
|
||||
if strings.HasPrefix(file.Name(), "initrd") ||
|
||||
strings.HasPrefix(file.Name(), "initramfs") {
|
||||
|
||||
if strings.Contains(file.Name(), kname) {
|
||||
name = file.Name()
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
err = errors.New("cannot find kernel")
|
||||
return
|
||||
}
|
||||
|
||||
func genRootfsImage(d container.Image, download bool) (rootfs string, err error) {
|
||||
usr, err := user.Current()
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
imageFile := d.Name + ".img"
|
||||
|
||||
imagesPath := usr.HomeDir + "/.out-of-tree/images/"
|
||||
os.MkdirAll(imagesPath, os.ModePerm)
|
||||
|
||||
rootfs = imagesPath + imageFile
|
||||
if !fs.PathExists(rootfs) {
|
||||
if download {
|
||||
log.Info().Msgf("%v not available, start download", imageFile)
|
||||
err = downloadImage(imagesPath, imageFile)
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func updateKernelsCfg(host, download bool) (err error) {
|
||||
newkcfg := config.KernelConfig{}
|
||||
|
||||
if host {
|
||||
// Get host kernels
|
||||
newkcfg, err = genHostKernels(download)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// Get docker kernels
|
||||
dockerImages, err := container.Images()
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
for _, d := range dockerImages {
|
||||
err = listContainersKernels(d, &newkcfg, download)
|
||||
if err != nil {
|
||||
log.Print("gen kernels", d.Name, ":", err)
|
||||
continue
|
||||
}
|
||||
}
|
||||
|
||||
stripkcfg := config.KernelConfig{}
|
||||
for _, nk := range newkcfg.Kernels {
|
||||
if !hasKernel(nk, stripkcfg) {
|
||||
stripkcfg.Kernels = append(stripkcfg.Kernels, nk)
|
||||
}
|
||||
}
|
||||
|
||||
buf, err := toml.Marshal(&stripkcfg)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
buf = append([]byte("# Autogenerated\n# DO NOT EDIT\n\n"), buf...)
|
||||
|
||||
usr, err := user.Current()
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
// TODO move all cfg path values to one provider
|
||||
kernelsCfgPath := usr.HomeDir + "/.out-of-tree/kernels.toml"
|
||||
err = ioutil.WriteFile(kernelsCfgPath, buf, 0644)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
log.Info().Msgf("%s is successfully updated", kernelsCfgPath)
|
||||
return
|
||||
}
|
||||
|
||||
func listContainersKernels(dii container.Image, newkcfg *config.KernelConfig,
|
||||
download bool) (err error) {
|
||||
|
||||
rootfs, err := genRootfsImage(dii, download)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
c, err := container.New(dii.Name, time.Hour)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
moddirs, err := ioutil.ReadDir(c.Volumes.LibModules)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
bootfiles, err := ioutil.ReadDir(c.Volumes.Boot)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
for _, krel := range moddirs {
|
||||
log.Debug().Msgf("generate config entry for %s", krel.Name())
|
||||
|
||||
var kernelFile, initrdFile string
|
||||
kernelFile, err = findKernelFile(bootfiles, krel.Name())
|
||||
if err != nil {
|
||||
log.Warn().Msgf("cannot find kernel %s", krel.Name())
|
||||
continue
|
||||
}
|
||||
|
||||
initrdFile, err = findInitrdFile(bootfiles, krel.Name())
|
||||
if err != nil {
|
||||
log.Warn().Msgf("cannot find initrd %s", krel.Name())
|
||||
continue
|
||||
}
|
||||
|
||||
ki := config.KernelInfo{
|
||||
DistroType: dii.DistroType,
|
||||
DistroRelease: dii.DistroRelease,
|
||||
KernelRelease: krel.Name(),
|
||||
ContainerName: dii.Name,
|
||||
|
||||
KernelPath: c.Volumes.Boot + "/" + kernelFile,
|
||||
InitrdPath: c.Volumes.Boot + "/" + initrdFile,
|
||||
ModulesPath: c.Volumes.LibModules + "/" + krel.Name(),
|
||||
|
||||
RootFS: rootfs,
|
||||
}
|
||||
newkcfg.Kernels = append(newkcfg.Kernels, ki)
|
||||
}
|
||||
|
||||
for _, cmd := range []string{
|
||||
"find /boot -type f -exec chmod a+r {} \\;",
|
||||
} {
|
||||
_, err = c.Run(tempDirBase, cmd)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func hasKernel(ki config.KernelInfo, kcfg config.KernelConfig) bool {
|
||||
for _, sk := range kcfg.Kernels {
|
||||
if sk == ki {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func shuffleStrings(a []string) []string {
|
||||
// Fisher–Yates shuffle
|
||||
for i := len(a) - 1; i > 0; i-- {
|
||||
j := rand.Intn(i + 1)
|
||||
a[i], a[j] = a[j], a[i]
|
||||
}
|
||||
return a
|
||||
}
|
||||
|
||||
func setSigintHandler(variable *bool) {
|
||||
c := make(chan os.Signal, 1)
|
||||
signal.Notify(c, os.Interrupt)
|
||||
go func() {
|
||||
counter := 0
|
||||
for _ = range c {
|
||||
if counter == 0 {
|
||||
*variable = true
|
||||
log.Warn().Msg("shutdown requested, finishing work")
|
||||
log.Info().Msg("^C a couple of times more for an unsafe exit")
|
||||
} else if counter >= 3 {
|
||||
log.Fatal().Msg("unsafe exit")
|
||||
}
|
||||
|
||||
counter += 1
|
||||
}
|
||||
}()
|
||||
|
||||
}
|
||||
|
||||
// FIXME too many parameters
|
||||
func generateKernels(km config.KernelMask, registry string,
|
||||
commands []config.DockerCommand, max, retries int64,
|
||||
download, force, headers, shuffle, update bool,
|
||||
shutdown *bool) (err error) {
|
||||
|
||||
log.Info().Msgf("Generating for kernel mask %v", km)
|
||||
|
||||
_, err = genRootfsImage(container.Image{Name: km.DockerName()},
|
||||
download)
|
||||
if err != nil || *shutdown {
|
||||
return
|
||||
}
|
||||
|
||||
err = generateBaseDockerImage(registry, commands, km, update)
|
||||
if err != nil || *shutdown {
|
||||
return
|
||||
}
|
||||
|
||||
pkgs, err := matchPackages(km)
|
||||
if err != nil || *shutdown {
|
||||
return
|
||||
}
|
||||
|
||||
if shuffle {
|
||||
pkgs = shuffleStrings(pkgs)
|
||||
}
|
||||
for i, pkg := range pkgs {
|
||||
if max <= 0 {
|
||||
log.Print("Max is reached")
|
||||
break
|
||||
}
|
||||
|
||||
if *shutdown {
|
||||
err = nil
|
||||
return
|
||||
}
|
||||
log.Info().Msgf("%d/%d %s", i+1, len(pkgs), pkg)
|
||||
|
||||
var attempt int64
|
||||
for {
|
||||
attempt++
|
||||
|
||||
if *shutdown {
|
||||
err = nil
|
||||
return
|
||||
}
|
||||
|
||||
err = installKernel(km, pkg, force, headers)
|
||||
if err == nil {
|
||||
max--
|
||||
break
|
||||
} else if attempt >= retries {
|
||||
log.Error().Err(err).Msg("install kernel")
|
||||
log.Debug().Msg("skip")
|
||||
break
|
||||
} else {
|
||||
log.Warn().Err(err).Msg("install kernel")
|
||||
time.Sleep(time.Second)
|
||||
log.Info().Msg("retry")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
return kernel.UpdateKernelsCfg(kernelCmd.UseHost, !kernelCmd.NoDownload)
|
||||
}
|
||||
|
||||
689
kernel/kernel.go
Normal file
689
kernel/kernel.go
Normal file
@@ -0,0 +1,689 @@
|
||||
// Copyright 2023 Mikhail Klementev. All rights reserved.
|
||||
// Use of this source code is governed by a AGPLv3 license
|
||||
// (or later) that can be found in the LICENSE file.
|
||||
|
||||
package kernel
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"math/rand"
|
||||
"os"
|
||||
"os/exec"
|
||||
"os/signal"
|
||||
"os/user"
|
||||
"regexp"
|
||||
"runtime"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/naoina/toml"
|
||||
"github.com/rs/zerolog/log"
|
||||
|
||||
"code.dumpstack.io/tools/out-of-tree/cache"
|
||||
"code.dumpstack.io/tools/out-of-tree/config"
|
||||
"code.dumpstack.io/tools/out-of-tree/container"
|
||||
"code.dumpstack.io/tools/out-of-tree/fs"
|
||||
)
|
||||
|
||||
func matchDebImagePkg(containerName, mask string) (pkgs []string, err error) {
|
||||
|
||||
cmd := "apt-cache search --names-only '^linux-image-[0-9\\.\\-]*-generic' | awk '{ print $1 }'"
|
||||
|
||||
// FIXME timeout should be in global out-of-tree config
|
||||
c, err := container.New(containerName, time.Hour)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
output, err := c.Run(config.Dir("tmp"), cmd)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
r, err := regexp.Compile("linux-image-" + mask)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
for _, pkg := range strings.Fields(output) {
|
||||
if r.MatchString(pkg) || strings.Contains(pkg, mask) {
|
||||
pkgs = append(pkgs, pkg)
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func matchOracleLinuxPkg(containerName, mask string) (
|
||||
pkgs []string, err error) {
|
||||
|
||||
cmd := "yum search kernel --showduplicates " +
|
||||
"| grep '^kernel-[0-9]\\|^kernel-uek-[0-9]' " +
|
||||
"| grep -v src " +
|
||||
"| cut -d ' ' -f 1"
|
||||
|
||||
// FIXME timeout should be in global out-of-tree config
|
||||
c, err := container.New(containerName, time.Hour)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
output, err := c.Run(config.Dir("tmp"), cmd)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
r, err := regexp.Compile("kernel-" + mask)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
for _, pkg := range strings.Fields(output) {
|
||||
if r.MatchString(pkg) || strings.Contains(pkg, mask) {
|
||||
log.Trace().Msg(pkg)
|
||||
pkgs = append(pkgs, pkg)
|
||||
}
|
||||
}
|
||||
|
||||
if len(pkgs) == 0 {
|
||||
log.Warn().Msg("no packages matched")
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func MatchPackages(km config.KernelMask) (pkgs []string, err error) {
|
||||
switch km.DistroType {
|
||||
case config.Ubuntu:
|
||||
pkgs, err = matchDebImagePkg(km.DockerName(), km.ReleaseMask)
|
||||
case config.OracleLinux, config.CentOS:
|
||||
pkgs, err = matchOracleLinuxPkg(km.DockerName(), km.ReleaseMask)
|
||||
default:
|
||||
err = fmt.Errorf("%s not yet supported", km.DistroType.String())
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func dockerImagePath(sk config.KernelMask) (path string, err error) {
|
||||
usr, err := user.Current()
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
path = usr.HomeDir + "/.out-of-tree/containers/"
|
||||
path += sk.DistroType.String() + "/" + sk.DistroRelease
|
||||
return
|
||||
}
|
||||
|
||||
func vsyscallAvailable() (available bool, err error) {
|
||||
if runtime.GOOS != "linux" {
|
||||
// Docker for non-Linux systems is not using the host
|
||||
// kernel but uses kernel inside a virtual machine, so
|
||||
// it builds by the Docker team with vsyscall support.
|
||||
available = true
|
||||
return
|
||||
}
|
||||
|
||||
buf, err := ioutil.ReadFile("/proc/self/maps")
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
available = strings.Contains(string(buf), "[vsyscall]")
|
||||
return
|
||||
}
|
||||
|
||||
func GenerateBaseDockerImage(registry string, commands []config.DockerCommand,
|
||||
sk config.KernelMask, forceUpdate bool) (err error) {
|
||||
|
||||
imagePath, err := dockerImagePath(sk)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
dockerPath := imagePath + "/Dockerfile"
|
||||
|
||||
d := "# BASE\n"
|
||||
|
||||
// TODO move as function to container.go
|
||||
cmd := exec.Command(container.Runtime, "images", "-q", sk.DockerName())
|
||||
log.Debug().Msgf("run %v", cmd)
|
||||
|
||||
rawOutput, err := cmd.CombinedOutput()
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
if fs.PathExists(dockerPath) && string(rawOutput) != "" {
|
||||
log.Info().Msgf("Base image for %s:%s found",
|
||||
sk.DistroType.String(), sk.DistroRelease)
|
||||
if !forceUpdate {
|
||||
return
|
||||
} else {
|
||||
log.Info().Msgf("Update Containerfile")
|
||||
}
|
||||
}
|
||||
|
||||
log.Info().Msgf("Base image for %s:%s not found, start generating",
|
||||
sk.DistroType.String(), sk.DistroRelease)
|
||||
os.MkdirAll(imagePath, os.ModePerm)
|
||||
|
||||
d += "FROM "
|
||||
if registry != "" {
|
||||
d += registry + "/"
|
||||
}
|
||||
|
||||
d += fmt.Sprintf("%s:%s\n",
|
||||
strings.ToLower(sk.DistroType.String()),
|
||||
sk.DistroRelease,
|
||||
)
|
||||
|
||||
for _, c := range commands {
|
||||
d += "RUN " + c.Command + "\n"
|
||||
}
|
||||
|
||||
switch sk.DistroType {
|
||||
case config.Ubuntu:
|
||||
if sk.DistroRelease < "14.04" {
|
||||
d += "RUN sed -i 's/archive.ubuntu.com/old-releases.ubuntu.com/' /etc/apt/sources.list\n"
|
||||
}
|
||||
d += "ENV DEBIAN_FRONTEND=noninteractive\n"
|
||||
d += "RUN apt-get update\n"
|
||||
d += "RUN apt-get install -y build-essential libelf-dev\n"
|
||||
d += "RUN apt-get install -y wget git\n"
|
||||
// Install a single kernel and headers to ensure all dependencies are cached
|
||||
if sk.DistroRelease >= "14.04" {
|
||||
d += "RUN export PKGNAME=$(apt-cache search --names-only '^linux-headers-[0-9\\.\\-]*-generic' | awk '{ print $1 }' | head -n 1); " +
|
||||
"apt-get install -y $PKGNAME $(echo $PKGNAME | sed 's/headers/image/'); " +
|
||||
"apt-get remove -y $PKGNAME $(echo $PKGNAME | sed 's/headers/image/')\n"
|
||||
d += "RUN apt-get install -y libseccomp-dev\n"
|
||||
}
|
||||
d += "RUN mkdir -p /lib/modules\n"
|
||||
case config.CentOS:
|
||||
var repos []string
|
||||
|
||||
switch sk.DistroRelease {
|
||||
case "6":
|
||||
repofmt := "[6.%d-%s]\\nbaseurl=https://vault.centos.org/6.%d/%s/$basearch/\\ngpgcheck=0"
|
||||
for i := 0; i <= 10; i++ {
|
||||
repos = append(repos, fmt.Sprintf(repofmt, i, "os", i, "os"))
|
||||
repos = append(repos, fmt.Sprintf(repofmt, i, "updates", i, "updates"))
|
||||
}
|
||||
d += "RUN rm /etc/yum.repos.d/*\n"
|
||||
case "7":
|
||||
repofmt := "[%s-%s]\\nbaseurl=https://vault.centos.org/%s/%s/$basearch/\\ngpgcheck=0"
|
||||
for _, ver := range []string{
|
||||
"7.0.1406", "7.1.1503", "7.2.1511",
|
||||
"7.3.1611", "7.4.1708", "7.5.1804",
|
||||
"7.6.1810", "7.7.1908", "7.8.2003",
|
||||
} {
|
||||
repos = append(repos, fmt.Sprintf(repofmt, ver, "os", ver, "os"))
|
||||
repos = append(repos, fmt.Sprintf(repofmt, ver, "updates", ver, "updates"))
|
||||
}
|
||||
|
||||
// FIXME http/gpgcheck=0
|
||||
repofmt = "[%s-%s]\\nbaseurl=http://mirror.centos.org/centos-7/%s/%s/$basearch/\\ngpgcheck=0"
|
||||
repos = append(repos, fmt.Sprintf(repofmt, "7.9.2009", "os", "7.9.2009", "os"))
|
||||
repos = append(repos, fmt.Sprintf(repofmt, "7.9.2009", "updates", "7.9.2009", "updates"))
|
||||
case "8":
|
||||
repofmt := "[%s]\\nbaseurl=https://vault.centos.org/%s/BaseOS/$basearch/os/\\ngpgcheck=0"
|
||||
|
||||
for _, ver := range []string{
|
||||
"8.0.1905", "8.1.1911", "8.2.2004",
|
||||
"8.3.2011", "8.4.2105", "8.5.2111",
|
||||
} {
|
||||
repos = append(repos, fmt.Sprintf(repofmt, ver, ver))
|
||||
}
|
||||
default:
|
||||
err = fmt.Errorf("no support for %s %s", sk.DistroType, sk.DistroRelease)
|
||||
return
|
||||
}
|
||||
|
||||
d += "RUN sed -i 's/enabled=1/enabled=0/' /etc/yum.repos.d/* || true\n"
|
||||
|
||||
for _, repo := range repos {
|
||||
d += fmt.Sprintf("RUN echo -e '%s' >> /etc/yum.repos.d/oot.repo\n", repo)
|
||||
}
|
||||
|
||||
// do not remove old kernels
|
||||
d += "RUN sed -i 's;installonly_limit=;installonly_limit=100500;' /etc/yum.conf\n"
|
||||
d += "RUN yum -y update\n"
|
||||
|
||||
d += "RUN yum -y groupinstall 'Development Tools'\n"
|
||||
|
||||
if sk.DistroRelease < "8" {
|
||||
d += "RUN yum -y install deltarpm\n"
|
||||
} else {
|
||||
d += "RUN yum -y install grub2-tools-minimal " +
|
||||
"elfutils-libelf-devel\n"
|
||||
}
|
||||
|
||||
var flags string
|
||||
if sk.DistroRelease >= "8" {
|
||||
flags = "--noautoremove"
|
||||
}
|
||||
|
||||
// Cache kernel package dependencies
|
||||
d += "RUN export PKGNAME=$(yum search kernel-devel --showduplicates | grep '^kernel-devel' | cut -d ' ' -f 1 | head -n 1); " +
|
||||
"yum -y install $PKGNAME $(echo $PKGNAME | sed 's/-devel//'); " +
|
||||
fmt.Sprintf("yum -y remove $PKGNAME "+
|
||||
"$(echo $PKGNAME | sed 's/-devel//') "+
|
||||
"$(echo $PKGNAME | sed 's/-devel/-modules/') "+
|
||||
"$(echo $PKGNAME | sed 's/-devel/-core/') %s\n", flags)
|
||||
case config.OracleLinux:
|
||||
if sk.DistroRelease < "6" {
|
||||
err = fmt.Errorf("no support for pre-EL6")
|
||||
return
|
||||
}
|
||||
d += "RUN sed -i 's/enabled=0/enabled=1/' /etc/yum.repos.d/*\n"
|
||||
d += "RUN sed -i 's;installonly_limit=;installonly_limit=100500;' /etc/yum.conf /etc/dnf/dnf.conf || true\n"
|
||||
d += "RUN yum -y update\n"
|
||||
d += "RUN yum -y groupinstall 'Development Tools'\n"
|
||||
packages := "linux-firmware grubby"
|
||||
if sk.DistroRelease <= "7" {
|
||||
packages += " libdtrace-ctf"
|
||||
}
|
||||
d += fmt.Sprintf("RUN yum -y install %s\n", packages)
|
||||
default:
|
||||
err = fmt.Errorf("%s not yet supported", sk.DistroType.String())
|
||||
return
|
||||
}
|
||||
|
||||
d += "# END BASE\n\n"
|
||||
|
||||
err = ioutil.WriteFile(dockerPath, []byte(d), 0644)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
c, err := container.New(sk.DockerName(), time.Hour)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
output, err := c.Build(imagePath)
|
||||
if err != nil {
|
||||
log.Error().Err(err).Msgf("Base image for %s:%s generating error",
|
||||
sk.DistroType.String(), sk.DistroRelease)
|
||||
log.Fatal().Msg(output)
|
||||
return
|
||||
}
|
||||
|
||||
log.Info().Msgf("Base image for %s:%s generating success",
|
||||
sk.DistroType.String(), sk.DistroRelease)
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func installKernel(sk config.KernelMask, pkgname string, force, headers bool) (err error) {
|
||||
slog := log.With().
|
||||
Str("distro_type", sk.DistroType.String()).
|
||||
Str("distro_release", sk.DistroRelease).
|
||||
Str("pkg", pkgname).
|
||||
Logger()
|
||||
|
||||
c, err := container.New(sk.DockerName(), time.Hour) // TODO conf
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
moddirs, err := ioutil.ReadDir(c.Volumes.LibModules)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
for _, krel := range moddirs {
|
||||
if strings.Contains(pkgname, krel.Name()) {
|
||||
if force {
|
||||
slog.Info().Msg("Reinstall")
|
||||
} else {
|
||||
slog.Info().Msg("Already installed")
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
volumes := c.Volumes
|
||||
|
||||
c.Volumes.LibModules = ""
|
||||
c.Volumes.UsrSrc = ""
|
||||
c.Volumes.Boot = ""
|
||||
|
||||
slog.Debug().Msgf("Installing kernel")
|
||||
|
||||
cmd := "true"
|
||||
|
||||
switch sk.DistroType {
|
||||
case config.Ubuntu:
|
||||
var headerspkg string
|
||||
if headers {
|
||||
headerspkg = strings.Replace(pkgname, "image", "headers", -1)
|
||||
}
|
||||
|
||||
cmd += fmt.Sprintf(" && apt-get install -y %s %s", pkgname, headerspkg)
|
||||
case config.OracleLinux, config.CentOS:
|
||||
var headerspkg string
|
||||
if headers {
|
||||
if strings.Contains(pkgname, "uek") {
|
||||
headerspkg = strings.Replace(pkgname,
|
||||
"kernel-uek", "kernel-uek-devel", -1)
|
||||
} else {
|
||||
headerspkg = strings.Replace(pkgname,
|
||||
"kernel", "kernel-devel", -1)
|
||||
}
|
||||
}
|
||||
|
||||
cmd += fmt.Sprintf(" && yum -y install %s %s", pkgname, headerspkg)
|
||||
|
||||
var version string
|
||||
if strings.Contains(pkgname, "uek") {
|
||||
version = strings.Replace(pkgname, "kernel-uek-", "", -1)
|
||||
} else {
|
||||
version = strings.Replace(pkgname, "kernel-", "", -1)
|
||||
}
|
||||
|
||||
if sk.DistroRelease <= "7" {
|
||||
cmd += fmt.Sprintf(" && dracut -v --add-drivers 'e1000 ext4' -f "+
|
||||
"/boot/initramfs-%s.img %s", version, version)
|
||||
} else {
|
||||
cmd += fmt.Sprintf(" && dracut -v --add-drivers 'ata_piix libata' --force-drivers 'e1000 ext4 sd_mod' -f "+
|
||||
"/boot/initramfs-%s.img %s", version, version)
|
||||
}
|
||||
default:
|
||||
err = fmt.Errorf("%s not yet supported", sk.DistroType.String())
|
||||
return
|
||||
}
|
||||
|
||||
c.Args = append(c.Args, "-v", volumes.LibModules+":/target/lib/modules")
|
||||
c.Args = append(c.Args, "-v", volumes.UsrSrc+":/target/usr/src")
|
||||
c.Args = append(c.Args, "-v", volumes.Boot+":/target/boot")
|
||||
|
||||
cmd += " && cp -r /boot /target/"
|
||||
cmd += " && cp -r /lib/modules /target/lib/"
|
||||
cmd += " && cp -r /usr/src /target/usr/"
|
||||
|
||||
_, err = c.Run("", cmd)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
slog.Debug().Msgf("Success")
|
||||
return
|
||||
}
|
||||
|
||||
func findKernelFile(files []os.FileInfo, kname string) (name string, err error) {
|
||||
for _, file := range files {
|
||||
if strings.HasPrefix(file.Name(), "vmlinuz") {
|
||||
if strings.Contains(file.Name(), kname) {
|
||||
name = file.Name()
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
err = errors.New("cannot find kernel")
|
||||
return
|
||||
}
|
||||
|
||||
func findInitrdFile(files []os.FileInfo, kname string) (name string, err error) {
|
||||
for _, file := range files {
|
||||
if strings.HasPrefix(file.Name(), "initrd") ||
|
||||
strings.HasPrefix(file.Name(), "initramfs") {
|
||||
|
||||
if strings.Contains(file.Name(), kname) {
|
||||
name = file.Name()
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
err = errors.New("cannot find kernel")
|
||||
return
|
||||
}
|
||||
|
||||
func GenRootfsImage(d container.Image, download bool) (rootfs string, err error) {
|
||||
usr, err := user.Current()
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
imageFile := d.Name + ".img"
|
||||
|
||||
imagesPath := usr.HomeDir + "/.out-of-tree/images/"
|
||||
os.MkdirAll(imagesPath, os.ModePerm)
|
||||
|
||||
rootfs = imagesPath + imageFile
|
||||
if !fs.PathExists(rootfs) {
|
||||
if download {
|
||||
log.Info().Msgf("%v not available, start download", imageFile)
|
||||
err = cache.DownloadQemuImage(imagesPath, imageFile)
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func UpdateKernelsCfg(host, download bool) (err error) {
|
||||
newkcfg := config.KernelConfig{}
|
||||
|
||||
if host {
|
||||
// Get host kernels
|
||||
newkcfg, err = genHostKernels(download)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// Get docker kernels
|
||||
dockerImages, err := container.Images()
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
for _, d := range dockerImages {
|
||||
err = listContainersKernels(d, &newkcfg, download)
|
||||
if err != nil {
|
||||
log.Print("gen kernels", d.Name, ":", err)
|
||||
continue
|
||||
}
|
||||
}
|
||||
|
||||
stripkcfg := config.KernelConfig{}
|
||||
for _, nk := range newkcfg.Kernels {
|
||||
if !hasKernel(nk, stripkcfg) {
|
||||
stripkcfg.Kernels = append(stripkcfg.Kernels, nk)
|
||||
}
|
||||
}
|
||||
|
||||
buf, err := toml.Marshal(&stripkcfg)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
buf = append([]byte("# Autogenerated\n# DO NOT EDIT\n\n"), buf...)
|
||||
|
||||
usr, err := user.Current()
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
// TODO move all cfg path values to one provider
|
||||
kernelsCfgPath := usr.HomeDir + "/.out-of-tree/kernels.toml"
|
||||
err = ioutil.WriteFile(kernelsCfgPath, buf, 0644)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
log.Info().Msgf("%s is successfully updated", kernelsCfgPath)
|
||||
return
|
||||
}
|
||||
|
||||
func listContainersKernels(dii container.Image, newkcfg *config.KernelConfig,
|
||||
download bool) (err error) {
|
||||
|
||||
rootfs, err := GenRootfsImage(dii, download)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
c, err := container.New(dii.Name, time.Hour)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
moddirs, err := ioutil.ReadDir(c.Volumes.LibModules)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
bootfiles, err := ioutil.ReadDir(c.Volumes.Boot)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
|
||||
for _, krel := range moddirs {
|
||||
log.Debug().Msgf("generate config entry for %s", krel.Name())
|
||||
|
||||
var kernelFile, initrdFile string
|
||||
kernelFile, err = findKernelFile(bootfiles, krel.Name())
|
||||
if err != nil {
|
||||
log.Warn().Msgf("cannot find kernel %s", krel.Name())
|
||||
continue
|
||||
}
|
||||
|
||||
initrdFile, err = findInitrdFile(bootfiles, krel.Name())
|
||||
if err != nil {
|
||||
log.Warn().Msgf("cannot find initrd %s", krel.Name())
|
||||
continue
|
||||
}
|
||||
|
||||
ki := config.KernelInfo{
|
||||
DistroType: dii.DistroType,
|
||||
DistroRelease: dii.DistroRelease,
|
||||
KernelRelease: krel.Name(),
|
||||
ContainerName: dii.Name,
|
||||
|
||||
KernelPath: c.Volumes.Boot + "/" + kernelFile,
|
||||
InitrdPath: c.Volumes.Boot + "/" + initrdFile,
|
||||
ModulesPath: c.Volumes.LibModules + "/" + krel.Name(),
|
||||
|
||||
RootFS: rootfs,
|
||||
}
|
||||
newkcfg.Kernels = append(newkcfg.Kernels, ki)
|
||||
}
|
||||
|
||||
for _, cmd := range []string{
|
||||
"find /boot -type f -exec chmod a+r {} \\;",
|
||||
} {
|
||||
_, err = c.Run(config.Dir("tmp"), cmd)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func hasKernel(ki config.KernelInfo, kcfg config.KernelConfig) bool {
|
||||
for _, sk := range kcfg.Kernels {
|
||||
if sk == ki {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func shuffleStrings(a []string) []string {
|
||||
// Fisher–Yates shuffle
|
||||
for i := len(a) - 1; i > 0; i-- {
|
||||
j := rand.Intn(i + 1)
|
||||
a[i], a[j] = a[j], a[i]
|
||||
}
|
||||
return a
|
||||
}
|
||||
|
||||
func SetSigintHandler(variable *bool) {
|
||||
c := make(chan os.Signal, 1)
|
||||
signal.Notify(c, os.Interrupt)
|
||||
go func() {
|
||||
counter := 0
|
||||
for _ = range c {
|
||||
if counter == 0 {
|
||||
*variable = true
|
||||
log.Warn().Msg("shutdown requested, finishing work")
|
||||
log.Info().Msg("^C a couple of times more for an unsafe exit")
|
||||
} else if counter >= 3 {
|
||||
log.Fatal().Msg("unsafe exit")
|
||||
}
|
||||
|
||||
counter += 1
|
||||
}
|
||||
}()
|
||||
|
||||
}
|
||||
|
||||
// FIXME too many parameters
|
||||
func GenerateKernels(km config.KernelMask, registry string,
|
||||
commands []config.DockerCommand, max, retries int64,
|
||||
download, force, headers, shuffle, update bool,
|
||||
shutdown *bool) (err error) {
|
||||
|
||||
log.Info().Msgf("Generating for kernel mask %v", km)
|
||||
|
||||
_, err = GenRootfsImage(container.Image{Name: km.DockerName()},
|
||||
download)
|
||||
if err != nil || *shutdown {
|
||||
return
|
||||
}
|
||||
|
||||
err = GenerateBaseDockerImage(registry, commands, km, update)
|
||||
if err != nil || *shutdown {
|
||||
return
|
||||
}
|
||||
|
||||
pkgs, err := MatchPackages(km)
|
||||
if err != nil || *shutdown {
|
||||
return
|
||||
}
|
||||
|
||||
if shuffle {
|
||||
pkgs = shuffleStrings(pkgs)
|
||||
}
|
||||
for i, pkg := range pkgs {
|
||||
if max <= 0 {
|
||||
log.Print("Max is reached")
|
||||
break
|
||||
}
|
||||
|
||||
if *shutdown {
|
||||
err = nil
|
||||
return
|
||||
}
|
||||
log.Info().Msgf("%d/%d %s", i+1, len(pkgs), pkg)
|
||||
|
||||
var attempt int64
|
||||
for {
|
||||
attempt++
|
||||
|
||||
if *shutdown {
|
||||
err = nil
|
||||
return
|
||||
}
|
||||
|
||||
err = installKernel(km, pkg, force, headers)
|
||||
if err == nil {
|
||||
max--
|
||||
break
|
||||
} else if attempt >= retries {
|
||||
log.Error().Err(err).Msg("install kernel")
|
||||
log.Debug().Msg("skip")
|
||||
break
|
||||
} else {
|
||||
log.Warn().Err(err).Msg("install kernel")
|
||||
time.Sleep(time.Second)
|
||||
log.Info().Msg("retry")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
@@ -5,7 +5,7 @@
|
||||
//go:build linux
|
||||
// +build linux
|
||||
|
||||
package main
|
||||
package kernel
|
||||
|
||||
import (
|
||||
"io/ioutil"
|
||||
@@ -52,7 +52,7 @@ func genHostKernels(download bool) (kcfg config.KernelConfig, err error) {
|
||||
}.DockerName(),
|
||||
}
|
||||
|
||||
rootfs, err := genRootfsImage(dii, download)
|
||||
rootfs, err := GenRootfsImage(dii, download)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
@@ -1,10 +1,11 @@
|
||||
// Copyright 2018 Mikhail Klementev. All rights reserved.
|
||||
// Copyright 2023 Mikhail Klementev. All rights reserved.
|
||||
// Use of this source code is governed by a AGPLv3 license
|
||||
// (or later) that can be found in the LICENSE file.
|
||||
|
||||
//go:build darwin
|
||||
// +build darwin
|
||||
|
||||
package main
|
||||
package kernel
|
||||
|
||||
import (
|
||||
"errors"
|
||||
Reference in New Issue
Block a user