Initial commit

vendor/github.com/hyperhq/hypercli/daemon/restart.go

@@ -0,0 +1,47 @@
+package daemon
+
+import (
+	"github.com/hyperhq/hypercli/container"
+	derr "github.com/hyperhq/hypercli/errors"
+)
+
+// ContainerRestart stops and starts a container. It attempts to
+// gracefully stop the container within the given timeout, forcefully
+// stopping it if the timeout is exceeded. If given a negative
+// timeout, ContainerRestart will wait forever until a graceful
+// stop. Returns an error if the container cannot be found, or if
+// there is an underlying error at any stage of the restart.
+func (daemon *Daemon) ContainerRestart(name string, seconds int) error {
+	container, err := daemon.GetContainer(name)
+	if err != nil {
+		return err
+	}
+	if err := daemon.containerRestart(container, seconds); err != nil {
+		return derr.ErrorCodeCantRestart.WithArgs(name, err)
+	}
+	return nil
+}
+
+// containerRestart attempts to gracefully stop and then start the
+// container. When stopping, wait for the given duration in seconds to
+// gracefully stop, before forcefully terminating the container. If
+// given a negative duration, wait forever for a graceful stop.
+func (daemon *Daemon) containerRestart(container *container.Container, seconds int) error {
+	// Avoid unnecessarily unmounting and then directly mounting
+	// the container when the container stops and then starts
+	// again
+	if err := daemon.Mount(container); err == nil {
+		defer daemon.Unmount(container)
+	}
+
+	if err := daemon.containerStop(container, seconds); err != nil {
+		return err
+	}
+
+	if err := daemon.containerStart(container); err != nil {
+		return err
+	}
+
+	daemon.LogContainerEvent(container, "restart")
+	return nil
+}