89921a08c1
* Stubs and vkubelet changes * added dependencies * Azure provider exec implementation * added missing dependencies * added vkubelet imports * added huawei exec stub * Fixed exec tab functionality / stdin buffer length * Removed unused import * Added provider function GetPodFullName + ACI implementation * Added error handling in ACI provider exec
80 lines
2.9 KiB
Go
80 lines
2.9 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package remotecommand
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
"time"
|
|
|
|
apierrors "k8s.io/apimachinery/pkg/api/errors"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/types"
|
|
remotecommandconsts "k8s.io/apimachinery/pkg/util/remotecommand"
|
|
"k8s.io/apimachinery/pkg/util/runtime"
|
|
"k8s.io/client-go/tools/remotecommand"
|
|
utilexec "k8s.io/utils/exec"
|
|
)
|
|
|
|
// Executor knows how to execute a command in a container in a pod.
|
|
type Executor interface {
|
|
// ExecInContainer executes a command in a container in the pod, copying data
|
|
// between in/out/err and the container's stdin/stdout/stderr.
|
|
ExecInContainer(name string, uid types.UID, container string, cmd []string, in io.Reader, out, err io.WriteCloser, tty bool, resize <-chan remotecommand.TerminalSize, timeout time.Duration) error
|
|
}
|
|
|
|
// ServeExec handles requests to execute a command in a container. After
|
|
// creating/receiving the required streams, it delegates the actual execution
|
|
// to the executor.
|
|
func ServeExec(w http.ResponseWriter, req *http.Request, executor Executor, podName string, uid types.UID, container string, cmd []string, streamOpts *Options, idleTimeout, streamCreationTimeout time.Duration, supportedProtocols []string) {
|
|
ctx, ok := createStreams(req, w, streamOpts, supportedProtocols, idleTimeout, streamCreationTimeout)
|
|
if !ok {
|
|
// error is handled by createStreams
|
|
return
|
|
}
|
|
defer ctx.conn.Close()
|
|
|
|
err := executor.ExecInContainer(podName, uid, container, cmd, ctx.stdinStream, ctx.stdoutStream, ctx.stderrStream, ctx.tty, ctx.resizeChan, 0)
|
|
if err != nil {
|
|
if exitErr, ok := err.(utilexec.ExitError); ok && exitErr.Exited() {
|
|
rc := exitErr.ExitStatus()
|
|
ctx.writeStatus(&apierrors.StatusError{ErrStatus: metav1.Status{
|
|
Status: metav1.StatusFailure,
|
|
Reason: remotecommandconsts.NonZeroExitCodeReason,
|
|
Details: &metav1.StatusDetails{
|
|
Causes: []metav1.StatusCause{
|
|
{
|
|
Type: remotecommandconsts.ExitCodeCauseType,
|
|
Message: fmt.Sprintf("%d", rc),
|
|
},
|
|
},
|
|
},
|
|
Message: fmt.Sprintf("command terminated with non-zero exit code: %v", exitErr),
|
|
}})
|
|
} else {
|
|
err = fmt.Errorf("error executing command in container: %v", err)
|
|
runtime.HandleError(err)
|
|
ctx.writeStatus(apierrors.NewInternalError(err))
|
|
}
|
|
} else {
|
|
ctx.writeStatus(&apierrors.StatusError{ErrStatus: metav1.Status{
|
|
Status: metav1.StatusSuccess,
|
|
}})
|
|
}
|
|
}
|