Replace usage of runc with runtime

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>

Closes: #412
Approved by: baude

libpod/container.go

@@ -466,7 +466,7 @@ func (c *Container) CgroupParent() string {
 
 // LogPath returns the path to the container's log file
 // This file will only be present after Init() is called to create the container
-// in runc
+// in the runtime
 func (c *Container) LogPath() string {
 	return c.config.LogPath
 }

libpod/container_api.go

@@ -117,7 +117,7 @@ func (c *Container) Init() (err error) {
 		return err
 	}
 
-	logrus.Debugf("Created container %s in runc", c.ID())
+	logrus.Debugf("Created container %s in OCI runtime", c.ID())
 
 	c.state.State = ContainerStateCreated
 
@@ -275,10 +275,11 @@ func (c *Container) Exec(tty, privileged bool, env, cmd []string, user string) e
 	pidFile := c.execPidPath(sessionID)
 	const pidWaitTimeout = 250
 
-	// Wait until runc makes the pidfile
-	// TODO: If runc errors before the PID file is created, we have to wait for timeout here
+	// Wait until the runtime makes the pidfile
+	// TODO: If runtime errors before the PID file is created, we have to
+	// wait for timeout here
 	if err := WaitForFile(pidFile, pidWaitTimeout*time.Millisecond); err != nil {
-		logrus.Debugf("Timed out waiting for pidfile from runc for container %s exec", c.ID())
+		logrus.Debugf("Timed out waiting for pidfile from runtime for container %s exec", c.ID())
 
 		// Check if an error occurred in the process before we made a pidfile
 		// TODO: Wait() here is a poor choice - is there a way to see if
@@ -287,7 +288,7 @@ func (c *Container) Exec(tty, privileged bool, env, cmd []string, user string) e
 			return err
 		}
 
-		return errors.Wrapf(err, "timed out waiting for runc to create pidfile for exec session in container %s", c.ID())
+		return errors.Wrapf(err, "timed out waiting for runtime to create pidfile for exec session in container %s", c.ID())
 	}
 
 	// Pidfile exists, read it
@@ -693,7 +694,7 @@ func (c *Container) Sync() error {
 		return nil
 	}
 
-	// If runc knows about the container, update its status in runc
+	// If runtime knows about the container, update its status in runtime
 	// And then save back to disk
 	if (c.state.State != ContainerStateUnknown) &&
 		(c.state.State != ContainerStateConfigured) {

libpod/container_internal.go

@@ -105,7 +105,7 @@ func (c *Container) execPidPath(sessionID string) string {
 	return filepath.Join(c.state.RunDir, "exec_pid_"+sessionID)
 }
 
-// Sync this container with on-disk state and runc status
+// Sync this container with on-disk state and runtime status
 // Should only be called with container lock held
 // This function should suffice to ensure a container's state is accurate and
 // it is valid for use.
@@ -113,7 +113,7 @@ func (c *Container) syncContainer() error {
 	if err := c.runtime.state.UpdateContainer(c); err != nil {
 		return err
 	}
-	// If runc knows about the container, update its status in runc
+	// If runtime knows about the container, update its status in runtime
 	// And then save back to disk
 	if (c.state.State != ContainerStateUnknown) &&
 		(c.state.State != ContainerStateConfigured) {

libpod/oci.go

@@ -36,7 +36,8 @@ const (
 	// ContainerCreateTimeout represents the value of container creating timeout
 	ContainerCreateTimeout = 240 * time.Second
 
-	// Timeout before declaring that runc has failed to kill a given container
+	// Timeout before declaring that runtime has failed to kill a given
+	// container
 	killContainerTimeout = 5 * time.Second
 	// DefaultShmSize is the default shm size
 	DefaultShmSize = 64 * 1024 * 1024
@@ -299,7 +300,7 @@ func (r *OCIRuntime) createContainer(ctr *Container, cgroupParent string) (err e
 	defer func() {
 		if err != nil {
 			if err2 := r.deleteContainer(ctr); err2 != nil {
-				logrus.Errorf("Error removing container %s from runc after creation failed", ctr.ID())
+				logrus.Errorf("Error removing container %s from runtime after creation failed", ctr.ID())
 			}
 		}
 	}()
@@ -366,7 +367,7 @@ func (r *OCIRuntime) updateContainerStatus(ctr *Container) error {
 	case "stopped":
 		ctr.state.State = ContainerStateStopped
 	default:
-		return errors.Wrapf(ErrInternal, "unrecognized status returned by runc for container %s: %s",
+		return errors.Wrapf(ErrInternal, "unrecognized status returned by runtime for container %s: %s",
 			ctr.ID(), state.Status)
 	}
 
@@ -477,7 +478,7 @@ func (r *OCIRuntime) stopContainer(ctr *Container, timeout uint) error {
 		return errors.Wrapf(err, "error sending SIGKILL to container %s", ctr.ID())
 	}
 
-	// Give runc a few seconds to make it happen
+	// Give runtime a few seconds to make it happen
 	if err := waitContainerStop(ctr, killContainerTimeout); err != nil {
 		return err
 	}
@@ -485,7 +486,7 @@ func (r *OCIRuntime) stopContainer(ctr *Container, timeout uint) error {
 	return nil
 }
 
-// deleteContainer deletes a container from runc
+// deleteContainer deletes a container from the OCI runtime
 func (r *OCIRuntime) deleteContainer(ctr *Container) error {
 	_, err := utils.ExecCmd(r.path, "delete", "--force", ctr.ID())
 	return err

libpod/runtime_pod.go

@@ -162,11 +162,11 @@ func (r *Runtime) RemovePod(p *Pod, removeCtrs, force bool) error {
 			return err
 		}
 
-		// Delete the container from runc (only if we are not
+		// Delete the container from runtime (only if we are not
 		// ContainerStateConfigured)
 		if ctr.state.State != ContainerStateConfigured {
 			if err := r.ociRuntime.deleteContainer(ctr); err != nil {
-				return errors.Wrapf(err, "error removing container %s from runc", ctr.ID())
+				return errors.Wrapf(err, "error removing container %s from runtime", ctr.ID())
 			}
 		}