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stage1-fly/run: allow non absolute commands to be run

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changes stage1-fly to convert a command name into an absolute path so
that syscall.Exec is able to properly execute it.
This commit is contained in:
samm81
2017-11-14 16:30:03 -06:00
parent a1a97d417e
commit 7ba8208176
1 changed files with 11 additions and 0 deletions
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11
stage1_fly/run/main.go
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@@ -460,6 +460,17 @@ func stage1(rp *stage1commontypes.RuntimePod) int {
return 254
}
// syscall.Exec takes a path and not a command name, so in the event that args[0] is a command name we have to convert it into a path
path, err := stage1initcommon.FindBinPath(p, &ra)
if err != nil {
log.PrintE(fmt.Sprintf("can't find the absolute executable for %q", args[0]), err)
return 254
}
if path != args[0] {
diag.Printf("converting args[0] (%q) into an absolute path: %q", args[0], path)
args[0] = path
}
diag.Printf("chroot to %q", rfs)
if err := syscall.Chroot(rfs); err != nil {
log.PrintE("can't chroot", err)