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Refactor exec to make attach useful without a client.Config

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The current executor structure is too dependent on client.Request
and client.Config. In order to do an attach from the server, it needs
to be possible to create an Executor from crypto/tls#TLSConfig and to
bypassing having a client.Request.

Changes:

* remotecommand.spdyExecutor - handles upgrading a request to SPDY and getting a connection
* remotecommand.NewAttach / New - moved to exec / portforward / attach since they handle requests
* Remove request.Upgrade() - it's too coupled to SPDY, and can live with the spdyExecutor
* Add request.VersionedParams(runtime.Object, runtime.ObjectConvertor) to handle object -> query transform
This commit is contained in:
Clayton Coleman
2015-09-26 20:00:39 -04:00
parent 2f90f660c1
commit 3f1b18fbba
13 changed files with 331 additions and 306 deletions
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14
pkg/kubectl/cmd/attach.go
View File

@@ -19,6 +19,7 @@ package cmd
import (
"fmt"
"io"
"net/url"
"os"
"os/signal"
"syscall"
@@ -72,15 +73,18 @@ func NewCmdAttach(f *cmdutil.Factory, cmdIn io.Reader, cmdOut, cmdErr io.Writer)
// RemoteAttach defines the interface accepted by the Attach command - provided for test stubbing
type RemoteAttach interface {
Attach(req *client.Request, config *client.Config, stdin io.Reader, stdout, stderr io.Writer, tty bool) error
Attach(method string, url *url.URL, config *client.Config, stdin io.Reader, stdout, stderr io.Writer, tty bool) error
}
// DefaultRemoteAttach is the standard implementation of attaching
type DefaultRemoteAttach struct{}
func (*DefaultRemoteAttach) Attach(req *client.Request, config *client.Config, stdin io.Reader, stdout, stderr io.Writer, tty bool) error {
attach := remotecommand.NewAttach(req, config, stdin, stdout, stderr, tty)
return attach.Execute()
func (*DefaultRemoteAttach) Attach(method string, url *url.URL, config *client.Config, stdin io.Reader, stdout, stderr io.Writer, tty bool) error {
exec, err := remotecommand.NewExecutor(config, method, url)
if err != nil {
return err
}
return exec.Stream(stdin, stdout, stderr, tty)
}
// AttachOptions declare the arguments accepted by the Exec command
@@ -201,7 +205,7 @@ func (p *AttachOptions) Run() error {
SubResource("attach").
Param("container", p.GetContainerName(pod))
return p.Attach.Attach(req, p.Config, stdin, p.Out, p.Err, tty)
return p.Attach.Attach("POST", req.URL(), p.Config, stdin, p.Out, p.Err, tty)
}
// GetContainerName returns the name of the container to attach to, with a fallback.