diff options
Diffstat (limited to 'vendor/k8s.io/kubernetes/pkg/kubelet/server/remotecommand/exec.go')
-rw-r--r-- | vendor/k8s.io/kubernetes/pkg/kubelet/server/remotecommand/exec.go | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/vendor/k8s.io/kubernetes/pkg/kubelet/server/remotecommand/exec.go b/vendor/k8s.io/kubernetes/pkg/kubelet/server/remotecommand/exec.go new file mode 100644 index 000000000..8d14a937a --- /dev/null +++ b/vendor/k8s.io/kubernetes/pkg/kubelet/server/remotecommand/exec.go @@ -0,0 +1,79 @@ +/* +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/kubernetes/pkg/util/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, + }}) + } +} |