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Use hyperkit to make raw disks

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- enable the hyperkit option by default on MacOS
- use it for creating raw disk images

fix #68

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
This commit is contained in:
Justin Cormack 2017-06-15 15:10:55 -07:00
parent d8cc1b3f08
commit 13da5e08ea
2 changed files with 10 additions and 4 deletions
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3
cmd/moby/build.go
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@ -12,6 +12,7 @@ import (
"os" "os"
"path" "path"
"path/filepath" "path/filepath"
"runtime"
"sort" "sort"
"strconv" "strconv"
"strings" "strings"
@ -94,7 +95,7 @@ func build(args []string) {
buildSize := buildCmd.String("size", "1024M", "Size for output image, if supported and fixed size") buildSize := buildCmd.String("size", "1024M", "Size for output image, if supported and fixed size")
buildPull := buildCmd.Bool("pull", false, "Always pull images") buildPull := buildCmd.Bool("pull", false, "Always pull images")
buildDisableTrust := buildCmd.Bool("disable-content-trust", false, "Skip image trust verification specified in trust section of config (default false)") buildDisableTrust := buildCmd.Bool("disable-content-trust", false, "Skip image trust verification specified in trust section of config (default false)")
buildHyperkit := buildCmd.Bool("hyperkit", false, "Use hyperkit for LinuxKit based builds where possible") buildHyperkit := buildCmd.Bool("hyperkit", runtime.GOOS == "darwin", "Use hyperkit for LinuxKit based builds where possible")
buildCmd.Var(&buildOut, "output", "Output types to create [ "+strings.Join(outputTypes, " ")+" ]") buildCmd.Var(&buildOut, "output", "Output types to create [ "+strings.Join(outputTypes, " ")+" ]")
if err := buildCmd.Parse(args); err != nil { if err := buildCmd.Parse(args); err != nil {

11
cmd/moby/linuxkit.go
View File

@ -129,9 +129,14 @@ func outputLinuxKit(format string, filename string, kernel []byte, initrd []byte
return fmt.Errorf("Cannot find linuxkit executable, needed to build %s output type: %v", format, err) return fmt.Errorf("Cannot find linuxkit executable, needed to build %s output type: %v", format, err)
} }
commandLine := []string{"-q", "run", "qemu", "-disk", fmt.Sprintf("%s,size=%s,format=%s", filename, sizeString, format), "-disk", fmt.Sprintf("%s,format=raw", tardisk), "-kernel", imageFilename("mkimage")} commandLine := []string{"-q", "run", "qemu", "-disk", fmt.Sprintf("%s,size=%s,format=%s", filename, sizeString, format), "-disk", fmt.Sprintf("%s,format=raw", tardisk), "-kernel", imageFilename("mkimage")}
// if hyperkit && format == "raw" { if hyperkit && format == "raw" {
// TODO support hyperkit state, err := ioutil.TempDir("", "s")
// } if err != nil {
return err
}
defer os.RemoveAll(state)
commandLine = []string{"-q", "run", "hyperkit", "-state", state, "-disk", fmt.Sprintf("%s,size=%s,format=%s", filename, sizeString, format), "-disk", fmt.Sprintf("%s,format=raw", tardisk), imageFilename("mkimage")}
}
log.Debugf("run %s: %v", linuxkit, commandLine) log.Debugf("run %s: %v", linuxkit, commandLine)
cmd := exec.Command(linuxkit, commandLine...) cmd := exec.Command(linuxkit, commandLine...)
cmd.Stderr = os.Stderr cmd.Stderr = os.Stderr