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kubelet.go
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kubelet.go
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package kubelet
import (
"context"
"io"
"time"
log "github.com/sirupsen/logrus"
"github.com/argoproj/argo-workflows/v3/errors"
)
type KubeletExecutor struct {
cli *kubeletClient
}
func NewKubeletExecutor(namespace, podName string) (*KubeletExecutor, error) {
log.Infof("Creating a kubelet executor")
cli, err := newKubeletClient(namespace, podName)
if err != nil {
return nil, errors.InternalWrapError(err)
}
return &KubeletExecutor{
cli: cli,
}, nil
}
func (k *KubeletExecutor) GetFileContents(containerName string, sourcePath string) (string, error) {
return "", errors.Errorf(errors.CodeNotImplemented, "GetFileContents() is not implemented in the kubelet executor.")
}
func (k *KubeletExecutor) CopyFile(containerName string, sourcePath string, destPath string, compressionLevel int) error {
return errors.Errorf(errors.CodeNotImplemented, "CopyFile() is not implemented in the kubelet executor.")
}
func (k *KubeletExecutor) GetOutputStream(ctx context.Context, containerName string, combinedOutput bool) (io.ReadCloser, error) {
if !combinedOutput {
log.Warn("non combined output unsupported")
}
return k.cli.GetLogStream(containerName)
}
// Wait for the container to complete
func (k *KubeletExecutor) Wait(ctx context.Context, containerNames []string) error {
return k.cli.WaitForTermination(ctx, containerNames, 0)
}
// Kill kills a list of containers first with a SIGTERM then with a SIGKILL after a grace period
func (k *KubeletExecutor) Kill(ctx context.Context, containerNames []string, terminationGracePeriodDuration time.Duration) error {
return k.cli.KillGracefully(ctx, containerNames, terminationGracePeriodDuration)
}
func (k *KubeletExecutor) ListContainerNames(ctx context.Context) ([]string, error) {
pod, err := k.cli.getPod()
if err != nil {
return nil, err
}
var containerNames []string
for _, c := range pod.Status.ContainerStatuses {
containerNames = append(containerNames, c.Name)
}
return containerNames, nil
}