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Use cio.FIFOSet.Close() to cleanup fifos

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Signed-off-by: Daniel Nephin <dnephin@docker.com>
This commit is contained in:
Daniel Nephin 2017-12-07 15:52:14 -05:00
parent 3fec7c0858
commit d72dfbfa8d
5 changed files with 39 additions and 47 deletions
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4
hack/dockerfile/binaries-commits
View file

@ -4,6 +4,10 @@ TOMLV_COMMIT=9baf8a8a9f2ed20a8e54160840c492f937eeaf9a
# When updating RUNC_COMMIT, also update runc in vendor.conf accordingly
RUNC_COMMIT=b2567b37d7b75eb4cf325b77297b140ea686ce8f
# containerd is also pinned in vendor.conf. When updating the binary
# version you may also need to update the vendor version to pick up bug
# fixes or new APIs.
CONTAINERD_COMMIT=89623f28b87a6004d4b785663257362d1658a729 # v1.0.0
TINI_COMMIT=949e6facb77383876aeff8a6944dde66b3089574
LIBNETWORK_COMMIT=7b2b1feb1de4817d522cc372af149ff48d25028e

14
libcontainerd/client_daemon.go
View file

@ -121,7 +121,7 @@ func (c *client) Restore(ctx context.Context, id string, attachStdio StdioCallba
c.Lock()
defer c.Unlock()
var rio *cio.DirectIO
var rio cio.IO
defer func() {
err = wrapError(err)
}()
@ -139,12 +139,13 @@ func (c *client) Restore(ctx context.Context, id string, attachStdio StdioCallba
}()
t, err := ctr.Task(ctx, func(fifos *cio.FIFOSet) (cio.IO, error) {
rio, err = cio.NewDirectIO(ctx, fifos)
io, err := cio.NewDirectIO(ctx, fifos)
if err != nil {
return nil, err
}
return attachStdio(rio)
rio, err = attachStdio(io)
return rio, err
})
if err != nil && !errdefs.IsNotFound(errors.Cause(err)) {
return false, -1, err
@ -322,7 +323,6 @@ func (c *client) Exec(ctx context.Context, containerID, processID string, spec *
rio.Cancel()
rio.Close()
}
rmFIFOSet(fifos)
}
}()
@ -332,10 +332,6 @@ func (c *client) Exec(ctx context.Context, containerID, processID string, spec *
})
if err != nil {
close(stdinCloseSync)
if rio != nil {
rio.Cancel()
rio.Close()
}
return -1, err
}
@ -686,7 +682,7 @@ func (c *client) processEvent(ctr *container, et EventType, ei EventInfo) {
"container": ei.ContainerID,
}).Error("failed to find container")
} else {
rmFIFOSet(newFIFOSet(ctr.bundleDir, ei.ProcessID, true, false))
newFIFOSet(ctr.bundleDir, ei.ProcessID, true, false).Close()
}
}
})

34
libcontainerd/client_daemon_linux.go
View file

@ -81,30 +81,28 @@ func prepareBundleDir(bundleDir string, ociSpec *specs.Spec) (string, error) {
}
func newFIFOSet(bundleDir, processID string, withStdin, withTerminal bool) *cio.FIFOSet {
fifos := &cio.FIFOSet{
Config: cio.Config{
Terminal: withTerminal,
Stdout: filepath.Join(bundleDir, processID+"-stdout"),
},
config := cio.Config{
Terminal: withTerminal,
Stdout: filepath.Join(bundleDir, processID+"-stdout"),
}
paths := []string{config.Stdout}
if withStdin {
fifos.Stdin = filepath.Join(bundleDir, processID+"-stdin")
config.Stdin = filepath.Join(bundleDir, processID+"-stdin")
paths = append(paths, config.Stdin)
}
if !fifos.Terminal {
fifos.Stderr = filepath.Join(bundleDir, processID+"-stderr")
if !withTerminal {
config.Stderr = filepath.Join(bundleDir, processID+"-stderr")
paths = append(paths, config.Stderr)
}
return fifos
}
func rmFIFOSet(fset *cio.FIFOSet) {
for _, fn := range []string{fset.Stdout, fset.Stdin, fset.Stderr} {
if fn != "" {
if err := os.RemoveAll(fn); err != nil {
logrus.Warnf("libcontainerd: failed to remove fifo %v: %v", fn, err)
closer := func() error {
for _, path := range paths {
if err := os.RemoveAll(path); err != nil {
logrus.Warnf("libcontainerd: failed to remove fifo %v: %v", path, err)
}
}
return nil
}
return cio.NewFIFOSet(config, closer)
}

16
libcontainerd/client_daemon_windows.go
View file

@ -2,6 +2,7 @@ package libcontainerd
import (
"fmt"
"path/filepath"
"github.com/containerd/containerd/cio"
"github.com/containerd/containerd/windows/hcsshimtypes"
@ -35,19 +36,20 @@ func pipeName(containerID, processID, name string) string {
return fmt.Sprintf(`\\.\pipe\containerd-%s-%s-%s`, containerID, processID, name)
}
func newFIFOSet(bundleDir, containerID, processID string, withStdin, withTerminal bool) *cio.FIFOSet {
fifos := &cio.FIFOSet{
func newFIFOSet(bundleDir, processID string, withStdin, withTerminal bool) *cio.FIFOSet {
containerID := filepath.Base(bundleDir)
config := cio.Config{
Terminal: withTerminal,
Out: pipeName(containerID, processID, "stdout"),
Stdout: pipeName(containerID, processID, "stdout"),
}
if withStdin {
fifos.In = pipeName(containerID, processID, "stdin")
config.Stdin = pipeName(containerID, processID, "stdin")
}
if !fifos.Terminal {
fifos.Err = pipeName(containerID, processID, "stderr")
if !config.Terminal {
config.Stderr = pipeName(containerID, processID, "stderr")
}
return fifos
return cio.NewFIFOSet(config, nil)
}

18
libcontainerd/client_local_windows.go
View file

@ -4,7 +4,6 @@ import (
"context"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"os"
"path"
@ -671,7 +670,7 @@ func (c *client) Start(_ context.Context, id, _ string, withStdin bool, attachSt
return p.pid, nil
}
dio, err := newIOFromProcess(newProcess)
dio, err := newIOFromProcess(newProcess, ctr.ociSpec.Process.Terminal)
if err != nil {
logger.WithError(err).Error("failed to get stdio pipes")
return -1, err
@ -712,16 +711,14 @@ func (c *client) Start(_ context.Context, id, _ string, withStdin bool, attachSt
return p.pid, nil
}
func newIOFromProcess(newProcess process) (*cio.DirectIO, error) {
func newIOFromProcess(newProcess hcsshim.Process, terminal bool) (*cio.DirectIO, error) {
stdin, stdout, stderr, err := newProcess.Stdio()
if err != nil {
return nil, err
}
dio := cio.DirectIO{
Terminal: ctr.ociSpec.Process.Terminal,
Stdin: createStdInCloser(stdin, newProcess),
}
dio := cio.NewDirectIO(createStdInCloser(stdin, newProcess), nil, nil, terminal)
// Convert io.ReadClosers to io.Readers
if stdout != nil {
dio.Stdout = ioutil.NopCloser(&autoClosingReader{ReadCloser: stdout})
@ -786,10 +783,6 @@ func (c *client) Exec(ctx context.Context, containerID, processID string, spec *
logger.Debugf("exec commandLine: %s", createProcessParms.CommandLine)
// Start the command running in the container.
var (
stdout, stderr io.ReadCloser
stdin io.WriteCloser
)
newProcess, err := ctr.hcsContainer.CreateProcess(&createProcessParms)
if err != nil {
logger.WithError(err).Errorf("exec's CreateProcess() failed")
@ -812,12 +805,11 @@ func (c *client) Exec(ctx context.Context, containerID, processID string, spec *
}
}()
dio, err := newIOFromProcess(newProcess)
dio, err := newIOFromProcess(newProcess, spec.Terminal)
if err != nil {
logger.WithError(err).Error("failed to get stdio pipes")
return -1, err
}
dio.Termainl = spec.Terminal
// Tell the engine to attach streams back to the client
_, err = attachStdio(dio)
if err != nil {