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Add Load for container and Task with Attach

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This adds both container and task loading of running tasks as well as
reattaching to the IO of the task after load.

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>
This commit is contained in:
Michael Crosby
2017-05-31 16:29:41 -07:00
parent 1db752bca8
commit 43fb19e01c
7 changed files with 228 additions and 47 deletions
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10
io_unix.go
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@@ -11,14 +11,14 @@ import (
"github.com/containerd/fifo"
)
func copyIO(fifos *fifoSet, ioset *ioSet, tty bool) (closer io.Closer, err error) {
func copyIO(fifos *FifoSet, ioset *ioSet, tty bool) (closer io.Closer, err error) {
var (
f io.ReadWriteCloser
ctx = context.Background()
wg = &sync.WaitGroup{}
)
if f, err = fifo.OpenFifo(ctx, fifos.in, syscall.O_WRONLY|syscall.O_CREAT|syscall.O_NONBLOCK, 0700); err != nil {
if f, err = fifo.OpenFifo(ctx, fifos.In, syscall.O_WRONLY|syscall.O_CREAT|syscall.O_NONBLOCK, 0700); err != nil {
return nil, err
}
defer func(c io.Closer) {
@@ -31,7 +31,7 @@ func copyIO(fifos *fifoSet, ioset *ioSet, tty bool) (closer io.Closer, err error
w.Close()
}(f)
if f, err = fifo.OpenFifo(ctx, fifos.out, syscall.O_RDONLY|syscall.O_CREAT|syscall.O_NONBLOCK, 0700); err != nil {
if f, err = fifo.OpenFifo(ctx, fifos.Out, syscall.O_RDONLY|syscall.O_CREAT|syscall.O_NONBLOCK, 0700); err != nil {
return nil, err
}
defer func(c io.Closer) {
@@ -46,7 +46,7 @@ func copyIO(fifos *fifoSet, ioset *ioSet, tty bool) (closer io.Closer, err error
wg.Done()
}(f)
if f, err = fifo.OpenFifo(ctx, fifos.err, syscall.O_RDONLY|syscall.O_CREAT|syscall.O_NONBLOCK, 0700); err != nil {
if f, err = fifo.OpenFifo(ctx, fifos.Err, syscall.O_RDONLY|syscall.O_CREAT|syscall.O_NONBLOCK, 0700); err != nil {
return nil, err
}
defer func(c io.Closer) {
@@ -66,6 +66,6 @@ func copyIO(fifos *fifoSet, ioset *ioSet, tty bool) (closer io.Closer, err error
return &wgCloser{
wg: wg,
dir: fifos.dir,
dir: fifos.Dir,
}, nil
}