Update libcontainer to 3d8a20bb772defc28c355534d83

Fixes #14203

This bump fixes the issue of having the container's pipes connection
reset by peer because of using the json.Encoder and having a \n added to
the output.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This commit is contained in:
Michael Crosby 2016-01-26 15:00:07 -08:00
parent 03864c1db0
commit 7b5896702b
5 changed files with 20 additions and 10 deletions

View file

@ -57,7 +57,7 @@ clone git github.com/miekg/pkcs11 80f102b5cac759de406949c47f0928b99bd64cdf
clone git github.com/jfrazelle/go v1.5.1-1
clone git github.com/agl/ed25519 d2b94fd789ea21d12fac1a4443dd3a3f79cda72c
clone git github.com/opencontainers/runc f36b00aa12b3cb4e9c42506059fce4145cfbd626 # libcontainer
clone git github.com/opencontainers/runc 3d8a20bb772defc28c355534d83486416d1719b4 # libcontainer
clone git github.com/seccomp/libseccomp-golang 1b506fc7c24eec5a3693cdcbed40d9c226cfc6a1
# libcontainer deps (see src/github.com/opencontainers/runc/Godeps/Godeps.json)
clone git github.com/coreos/go-systemd v4

View file

@ -21,6 +21,7 @@ import (
"github.com/opencontainers/runc/libcontainer/cgroups"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/criurpc"
"github.com/opencontainers/runc/libcontainer/utils"
"github.com/vishvananda/netlink/nl"
)
@ -968,7 +969,7 @@ func (c *linuxContainer) updateState(process parentProcess) error {
}
defer f.Close()
os.Remove(filepath.Join(c.root, "checkpoint"))
return json.NewEncoder(f).Encode(state)
return utils.WriteJSON(f, state)
}
func (c *linuxContainer) currentStatus() (Status, error) {

View file

@ -5,7 +5,6 @@ package libcontainer
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
@ -19,6 +18,7 @@ import (
"github.com/opencontainers/runc/libcontainer/cgroups/systemd"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/configs/validate"
"github.com/opencontainers/runc/libcontainer/utils"
)
const (
@ -226,10 +226,7 @@ func (l *LinuxFactory) StartInitialization() (err error) {
// if we have an error during the initialization of the container's init then send it back to the
// parent process in the form of an initError.
if err != nil {
// ensure that any data sent from the parent is consumed so it doesn't
// receive ECONNRESET when the child writes to the pipe.
ioutil.ReadAll(pipe)
if err := json.NewEncoder(pipe).Encode(newSystemError(err)); err != nil {
if err := utils.WriteJSON(pipe, newSystemError(err)); err != nil {
panic(err)
}
}

View file

@ -15,6 +15,7 @@ import (
"github.com/opencontainers/runc/libcontainer/cgroups"
"github.com/opencontainers/runc/libcontainer/configs"
"github.com/opencontainers/runc/libcontainer/system"
"github.com/opencontainers/runc/libcontainer/utils"
)
type parentProcess interface {
@ -83,7 +84,7 @@ func (p *setnsProcess) start() (err error) {
return newSystemError(err)
}
}
if err := json.NewEncoder(p.parentPipe).Encode(p.config); err != nil {
if err := utils.WriteJSON(p.parentPipe, p.config); err != nil {
return newSystemError(err)
}
if err := syscall.Shutdown(int(p.parentPipe.Fd()), syscall.SHUT_WR); err != nil {
@ -270,7 +271,7 @@ func (p *initProcess) startTime() (string, error) {
func (p *initProcess) sendConfig() error {
// send the state to the container's init process then shutdown writes for the parent
if err := json.NewEncoder(p.parentPipe).Encode(p.config); err != nil {
if err := utils.WriteJSON(p.parentPipe, p.config); err != nil {
return err
}
// shutdown writes for the parent side of the pipe

View file

@ -3,6 +3,7 @@ package utils
import (
"crypto/rand"
"encoding/hex"
"encoding/json"
"io"
"path/filepath"
"syscall"
@ -36,10 +37,20 @@ func ResolveRootfs(uncleanRootfs string) (string, error) {
}
// ExitStatus returns the correct exit status for a process based on if it
// was signaled or exited cleanly.
// was signaled or exited cleanly
func ExitStatus(status syscall.WaitStatus) int {
if status.Signaled() {
return exitSignalOffset + int(status.Signal())
}
return status.ExitStatus()
}
// WriteJSON writes the provided struct v to w using standard json marshaling
func WriteJSON(w io.Writer, v interface{}) error {
data, err := json.Marshal(v)
if err != nil {
return err
}
_, err = w.Write(data)
return err
}