Refactor the Sandbox package into Sandbox + Container.

This is a necessary prerequisite for supporting multiple containers in a single
sandbox.

All the commands (in cmd package) now call operations on Containers (container
package). When a Container first starts, it will create a Sandbox with the same
ID.

The Sandbox class is now simpler, as it only knows how to create boot/gofer
processes, and how to forward commands into the running boot process.

There are TODOs sprinkled around for additional support for multiple
containers. Most notably, we need to detect when a container is intended to run
in an existing sandbox (by reading the metadata), and then have some way to
signal to the sandbox to start a new container. Other urpc calls into the
sandbox need to pass the container ID, so the sandbox can run the operation on
the given container. These are only half-plummed through right now.

PiperOrigin-RevId: 196688269
Change-Id: I1ecf4abbb9dd8987a53ae509df19341aaf42b5b0

1 files changed, 0 insertions, 56 deletions

diff --git a/runsc/sandbox/status.go b/runsc/sandbox/status.go
deleted file mode 100644
index 6fc936aba..000000000
--- a/runsc/sandbox/status.go
+++ /dev/null
@@ -1,56 +0,0 @@
-// Copyright 2018 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package sandbox
-
-// Status enumerates sandbox statuses.  The statuses and their semantics are
-// part of the runtime CLI spec.
-//
-// TODO: Get precise about the transitions between statuses.
-type Status int
-
-const (
-	// Creating indicates "the container is being created".
-	Creating Status = iota
-
-	// Created indicates "the runtime has finished the create operation and
-	// the container process has neither exited nor executed the
-	// user-specified program".
-	Created
-
-	// Running indicates "the container process has executed the
-	// user-specified program but has not exited".
-	Running
-
-	// Stopped indicates "the container process has exited".
-	Stopped
-)
-
-// String converts a Status to a string.  These strings are part of the runtime
-// CLI spec and should not be changed.
-func (s Status) String() string {
-	switch s {
-	case Creating:
-		return "creating"
-	case Created:
-		return "created"
-	case Running:
-		return "running"
-	case Stopped:
-		return "stopped"
-	default:
-		return "unknown"
-	}
-
-}