libkpod -> lib rename

Signed-off-by: Antonio Murdaca <runcom@redhat.com>

lib/stop.go

@@ -0,0 +1,36 @@
+package lib
+
+import (
+	"github.com/kubernetes-incubator/cri-o/oci"
+	"github.com/pkg/errors"
+	"golang.org/x/net/context"
+)
+
+// ContainerStop stops a running container with a grace period (i.e., timeout).
+func (c *ContainerServer) ContainerStop(ctx context.Context, container string, timeout int64) (string, error) {
+	ctr, err := c.LookupContainer(container)
+	if err != nil {
+		return "", errors.Wrapf(err, "failed to find container %s", container)
+	}
+	ctrID := ctr.ID()
+
+	cStatus := c.runtime.ContainerStatus(ctr)
+	switch cStatus.Status {
+
+	case oci.ContainerStatePaused:
+		return "", errors.Errorf("cannot stop paused container %s", ctrID)
+	default:
+		if cStatus.Status != oci.ContainerStateStopped {
+			if err := c.runtime.StopContainer(ctx, ctr, timeout); err != nil {
+				return "", errors.Wrapf(err, "failed to stop container %s", ctrID)
+			}
+			if err := c.storageRuntimeServer.StopContainer(ctrID); err != nil {
+				return "", errors.Wrapf(err, "failed to unmount container %s", ctrID)
+			}
+		}
+	}
+
+	c.ContainerStateToDisk(ctr)
+
+	return ctrID, nil
+}