gvisor/gofer: Use pivot_root instead of chroot

PiperOrigin-RevId: 231864273
Change-Id: I8545b72b615f5c2945df374b801b80be64ec3e13

2 files changed, 1 insertions, 13 deletions

diff --git a/runsc/test/root/chroot_test.go b/runsc/test/root/chroot_test.go
index 89f90c3e0..0deca0532 100644
--- a/runsc/test/root/chroot_test.go
+++ b/runsc/test/root/chroot_test.go
@@ -118,10 +118,7 @@ func TestChrootGofer(t *testing.T) {
 
 	// This where the root directory is mapped on the host and that's where the
 	// gofer must have chroot'd to.
-	root, err := d.RootDirInHost()
-	if err != nil {
-		t.Fatalf("Docker.RootDirInHost(): %v", err)
-	}
+	root := "/root"
 
 	for _, child := range children {
 		childPID, err := strconv.Atoi(child)
diff --git a/runsc/test/testutil/docker.go b/runsc/test/testutil/docker.go
index 9a76397be..5a92a5835 100644
--- a/runsc/test/testutil/docker.go
+++ b/runsc/test/testutil/docker.go
@@ -297,15 +297,6 @@ func (d *Docker) SandboxPid() (int, error) {
 	return pid, nil
 }
 
-// RootDirInHost returns where the root directory is mapped on the host.
-func (d *Docker) RootDirInHost() (string, error) {
-	out, err := do("inspect", "-f={{.GraphDriver.Data.MergedDir}}", d.Name)
-	if err != nil {
-		return "", fmt.Errorf("error retrieving pid: %v", err)
-	}
-	return strings.TrimSuffix(string(out), "\n"), nil
-}
-
 // ID returns the container ID.
 func (d *Docker) ID() (string, error) {
 	out, err := do("inspect", "-f={{.Id}}", d.Name)