mirror of https://github.com/portainer/portainer
58 lines
1.4 KiB
Go
58 lines
1.4 KiB
Go
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package cli
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import (
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"errors"
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"io"
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"k8s.io/api/core/v1"
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"k8s.io/client-go/kubernetes/scheme"
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"k8s.io/client-go/rest"
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"k8s.io/client-go/tools/remotecommand"
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utilexec "k8s.io/client-go/util/exec"
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)
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// StartExecProcess will start an exec process inside a container located inside a pod inside a specific namespace
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// using the specified command. The stdin parameter will be bound to the stdin process and the stdout process will write
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// to the stdout parameter.
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// This function only works against a local endpoint using an in-cluster config.
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func (kcl *KubeClient) StartExecProcess(namespace, podName, containerName string, command []string, stdin io.Reader, stdout io.Writer) error {
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config, err := rest.InClusterConfig()
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if err != nil {
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return err
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}
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req := kcl.cli.CoreV1().RESTClient().
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Post().
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Resource("pods").
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Name(podName).
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Namespace(namespace).
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SubResource("exec")
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req.VersionedParams(&v1.PodExecOptions{
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Container: containerName,
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Command: command,
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Stdin: true,
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Stdout: true,
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Stderr: true,
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TTY: true,
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}, scheme.ParameterCodec)
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exec, err := remotecommand.NewSPDYExecutor(config, "POST", req.URL())
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if err != nil {
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return err
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}
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err = exec.Stream(remotecommand.StreamOptions{
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Stdin: stdin,
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Stdout: stdout,
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Tty: true,
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})
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if err != nil {
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if _, ok := err.(utilexec.ExitError); !ok {
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return errors.New("unable to start exec process")
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}
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}
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return nil
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}
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