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mirror of https://github.com/linka-cloud/d2vm.git synced 2024-11-05 08:16:23 +00:00
d2vm/grub_common.go
Adphi a41bbdb745
add grub-efi support
* tests: increase timeout
* ci: split e2e tests

Signed-off-by: Adphi <philippe.adrien.nousse@gmail.com>
2023-09-13 11:06:26 +02:00

103 lines
2.5 KiB
Go

// Copyright 2023 Linka Cloud All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package d2vm
import (
"context"
"fmt"
"os"
"path/filepath"
"github.com/sirupsen/logrus"
"go.linka.cloud/d2vm/pkg/exec"
)
const grubCfg = `GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=0
GRUB_CMDLINE_LINUX_DEFAULT="%s"
GRUB_CMDLINE_LINUX=""
GRUB_TERMINAL=console
`
type grubCommon struct {
name string
c Config
r OSRelease
root string
dev string
}
func newGrubCommon(c Config, r OSRelease) *grubCommon {
name := "grub"
if r.ID == "centos" {
name = "grub2"
}
return &grubCommon{
name: name,
c: c,
r: r,
}
}
func (g *grubCommon) prepare(ctx context.Context, dev, root, cmdline string) (clean func(), err error) {
g.dev = dev
g.root = root
if err = os.WriteFile(filepath.Join(root, "etc", "default", "grub"), []byte(fmt.Sprintf(grubCfg, cmdline)), perm); err != nil {
return
}
if err = os.MkdirAll(filepath.Join(root, "boot", g.name), os.ModePerm); err != nil {
return
}
mounts := []string{"dev", "proc", "sys"}
var unmounts []string
clean = func() {
for _, v := range unmounts {
if err := exec.Run(ctx, "umount", filepath.Join(root, v)); err != nil {
logrus.Errorf("failed to unmount /%s: %s", v, err)
}
}
}
defer func() {
if err != nil {
clean()
}
}()
for _, v := range mounts {
if err = exec.Run(ctx, "mount", "-o", "bind", "/"+v, filepath.Join(root, v)); err != nil {
return
}
unmounts = append(unmounts, v)
}
return
}
func (g *grubCommon) install(ctx context.Context, args ...string) error {
if g.dev == "" || g.root == "" {
return fmt.Errorf("grubCommon not prepared")
}
args = append([]string{g.root, g.name + "-install"}, args...)
return exec.Run(ctx, "chroot", args...)
}
func (g *grubCommon) mkconfig(ctx context.Context) error {
if g.dev == "" || g.root == "" {
return fmt.Errorf("grubCommon not prepared")
}
return exec.Run(ctx, "chroot", g.root, g.name+"-mkconfig", "-o", "/boot/"+g.name+"/grub.cfg")
}