linka-cloud
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d2vm
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Code Issues Releases Activity

add "append-to-cmdline" option 

Signed-off-by: Adphi <philippe.adrien.nousse@gmail.com>
This commit is contained in:
Adphi 2022-08-07 18:24:02 +02:00
parent 92cd70430b
commit 0c24236da9
Signed by: adphi
GPG Key ID: 46BE4062DB2397FF
4 changed files with 28 additions and 23 deletions
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36
builder.go
View File

@ -44,25 +44,25 @@ ff02::3 ip6-allhosts
SAY Now booting the kernel from SYSLINUX...
LABEL linux
KERNEL /boot/vmlinuz
APPEND ro root=UUID=%s initrd=/boot/initrd.img net.ifnames=0 console=tty0 console=ttyS0,115200n8
APPEND ro root=UUID=%s initrd=/boot/initrd.img net.ifnames=0 console=tty0 console=ttyS0,115200n8 %s
`
syslinuxCfgDebian = `DEFAULT linux
SAY Now booting the kernel from SYSLINUX...
LABEL linux
KERNEL /vmlinuz
APPEND ro root=UUID=%s initrd=/initrd.img net.ifnames=0 console=tty0 console=ttyS0,115200n8
APPEND ro root=UUID=%s initrd=/initrd.img net.ifnames=0 console=tty0 console=ttyS0,115200n8 %s
`
syslinuxCfgAlpine = `DEFAULT linux
SAY Now booting the kernel from SYSLINUX...
LABEL linux
KERNEL /boot/vmlinuz-virt
APPEND ro root=UUID=%s rootfstype=ext4 initrd=/boot/initramfs-virt console=ttyS0,115200
APPEND ro root=UUID=%s rootfstype=ext4 initrd=/boot/initramfs-virt console=ttyS0,115200 %s
`
syslinuxCfgCentOS = `DEFAULT linux
SAY Now booting the kernel from SYSLINUX...
LABEL linux
KERNEL /boot/vmlinuz
APPEND ro root=UUID=%s initrd=/boot/initrd.img net.ifnames=0 console=tty0 console=ttyS0,115200n8
APPEND ro root=UUID=%s initrd=/boot/initrd.img net.ifnames=0 console=tty0 console=ttyS0,115200n8 %s
`
)
@ -119,12 +119,13 @@ type builder struct {
mbrPath string
loDevice string
loPart string
diskUUD string
loDevice string
loPart string
diskUUD string
cmdLineExtra string
}
func NewBuilder(ctx context.Context, workdir, imgTag, disk string, size int64, osRelease OSRelease, format string) (*builder, error) {
func NewBuilder(ctx context.Context, workdir, imgTag, disk string, size int64, osRelease OSRelease, format string, cmdLineExtra string) (*builder, error) {
if err := checkDependencies(); err != nil {
return nil, err
}
@ -169,14 +170,15 @@ func NewBuilder(ctx context.Context, workdir, imgTag, disk string, size int64, o
// size = int64(s)
// }
b := &builder{
osRelease: osRelease,
img: img,
diskRaw: filepath.Join(workdir, disk+".d2vm.raw"),
diskOut: filepath.Join(workdir, disk+"."+format),
format: f,
size: size,
mbrPath: mbrBin,
mntPoint: filepath.Join(workdir, "/mnt"),
osRelease: osRelease,
img: img,
diskRaw: filepath.Join(workdir, disk+".d2vm.raw"),
diskOut: filepath.Join(workdir, disk+"."+format),
format: f,
size: size,
mbrPath: mbrBin,
mntPoint: filepath.Join(workdir, "/mnt"),
cmdLineExtra: cmdLineExtra,
}
if err := os.MkdirAll(b.mntPoint, os.ModePerm); err != nil {
return nil, err
@ -343,7 +345,7 @@ func (b *builder) installKernel(ctx context.Context) error {
if err != nil {
return err
}
if err := b.chWriteFile("/boot/syslinux.cfg", fmt.Sprintf(sysconfig, b.diskUUD), perm); err != nil {
if err := b.chWriteFile("/boot/syslinux.cfg", fmt.Sprintf(sysconfig, b.diskUUD, b.cmdLineExtra), perm); err != nil {
return err
}
return nil

5
cmd/d2vm/build.go
View File

@ -47,14 +47,14 @@ var (
return err
}
exec.SetDebug(debug)
logrus.Infof("building docker image from %s", file)
if file == "" {
file = filepath.Join(args[0], "Dockerfile")
}
logrus.Infof("building docker image from %s", file)
if err := docker.Build(cmd.Context(), tag, file, args[0], buildArgs...); err != nil {
return err
}
return d2vm.Convert(cmd.Context(), tag, size, password, output)
return d2vm.Convert(cmd.Context(), tag, size, password, output, cmdLineExtra)
},
}
)
@ -70,4 +70,5 @@ func init() {
buildCmd.Flags().StringVarP(&size, "size", "s", "10G", "The output image size")
buildCmd.Flags().BoolVarP(&debug, "debug", "d", false, "Enable Debug output")
buildCmd.Flags().BoolVar(&force, "force", false, "Override output image")
buildCmd.Flags().StringVar(&cmdLineExtra, "append-to-cmdline", "", "Extra kernel cmdline arguments to append to the generated one")
}

6
cmd/d2vm/convert.go
View File

@ -30,7 +30,8 @@ import (
)
var (
pull = false
pull = false
cmdLineExtra = ""
convertCmd = &cobra.Command{
Use: "convert [docker image]",
@ -78,7 +79,7 @@ var (
return err
}
}
return d2vm.Convert(cmd.Context(), img, size, password, output)
return d2vm.Convert(cmd.Context(), img, size, password, output, cmdLineExtra)
},
}
)
@ -98,5 +99,6 @@ func init() {
convertCmd.Flags().StringVarP(&size, "size", "s", "10G", "The output image size")
convertCmd.Flags().BoolVarP(&debug, "debug", "d", false, "Enable Debug output")
convertCmd.Flags().BoolVarP(&force, "force", "f", false, "Override output qcow2 image")
convertCmd.Flags().StringVar(&cmdLineExtra, "append-to-cmdline", "", "Extra kernel cmdline arguments to append to the generated one")
rootCmd.AddCommand(convertCmd)
}

4
convert.go
View File

@ -28,7 +28,7 @@ import (
"go.linka.cloud/d2vm/pkg/docker"
)
func Convert(ctx context.Context, img string, size int64, password string, output string) error {
func Convert(ctx context.Context, img string, size int64, password string, output string, cmdLineExtra string) error {
imgUUID := uuid.New().String()
tmpPath := filepath.Join(os.TempDir(), "d2vm", imgUUID)
if err := os.MkdirAll(tmpPath, os.ModePerm); err != nil {
@ -67,7 +67,7 @@ func Convert(ctx context.Context, img string, size int64, password string, outpu
if format == "" {
format = "raw"
}
b, err := NewBuilder(ctx, tmpPath, imgUUID, "", size, r, format)
b, err := NewBuilder(ctx, tmpPath, imgUUID, "", size, r, format, cmdLineExtra)
if err != nil {
return err
}