9db7cf1370
Implement the ability to pause and unpause running containers. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com> Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>
46 lines
1.4 KiB
Go
46 lines
1.4 KiB
Go
package libkpod
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import (
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"github.com/kubernetes-incubator/cri-o/oci"
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"github.com/pkg/errors"
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)
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// ContainerPause pauses a running container.
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func (c *ContainerServer) ContainerPause(container string) (string, error) {
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ctr, err := c.LookupContainer(container)
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if err != nil {
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return "", errors.Wrapf(err, "failed to find container %s", container)
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}
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cStatus := c.runtime.ContainerStatus(ctr)
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if cStatus.Status != oci.ContainerStatePaused {
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if err := c.runtime.PauseContainer(ctr); err != nil {
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return "", errors.Wrapf(err, "failed to pause container %s", ctr.ID())
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}
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c.ContainerStateToDisk(ctr)
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} else {
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return "", errors.Wrapf(err, "container %s is already paused", ctr.ID())
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}
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return ctr.ID(), nil
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}
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// ContainerUnpause unpauses a running container with a grace period (i.e., timeout).
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func (c *ContainerServer) ContainerUnpause(container string) (string, error) {
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ctr, err := c.LookupContainer(container)
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if err != nil {
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return "", errors.Wrapf(err, "failed to find container %s", container)
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}
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cStatus := c.runtime.ContainerStatus(ctr)
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if cStatus.Status == oci.ContainerStatePaused {
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if err := c.runtime.UnpauseContainer(ctr); err != nil {
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return "", errors.Wrapf(err, "failed to unpause container %s", ctr.ID())
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}
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c.ContainerStateToDisk(ctr)
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} else {
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return "", errors.Wrapf(err, "the container %s is not paused", ctr.ID())
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}
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return ctr.ID(), nil
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}
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