virtcontainers: Initial import

This is a virtcontainers 1.0.8 import into Kata Containers runtime.

virtcontainers is a Go library designed to manage hardware virtualized
pods and containers. It is the core Clear Containers framework and will
become the core Kata Containers framework, as discussed at
https://github.com/kata-containers/runtime/issues/33

Some more more pointers:

virtcontainers README, including some design and architecure notes:
https://github.com/containers/virtcontainers/blob/master/README.md

virtcontainers 1.0 API:
https://github.com/containers/virtcontainers/blob/master/documentation/api/1.0/api.md

Fixes #40

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

virtcontainers/implementation.go

@@ -0,0 +1,119 @@
+// Copyright (c) 2017 Intel Corporation
+//
+// 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.
+
+// Description: The true virtcontainers function of the same name.
+// This indirection is required to allow an alternative implemenation to be
+// used for testing purposes.
+
+package virtcontainers
+
+import (
+	"syscall"
+
+	"github.com/sirupsen/logrus"
+)
+
+// VCImpl is the official virtcontainers function of the same name.
+type VCImpl struct {
+}
+
+// SetLogger implements the VC function of the same name.
+func (impl *VCImpl) SetLogger(logger logrus.FieldLogger) {
+	SetLogger(logger)
+}
+
+// CreatePod implements the VC function of the same name.
+func (impl *VCImpl) CreatePod(podConfig PodConfig) (VCPod, error) {
+	return CreatePod(podConfig)
+}
+
+// DeletePod implements the VC function of the same name.
+func (impl *VCImpl) DeletePod(podID string) (VCPod, error) {
+	return DeletePod(podID)
+}
+
+// StartPod implements the VC function of the same name.
+func (impl *VCImpl) StartPod(podID string) (VCPod, error) {
+	return StartPod(podID)
+}
+
+// StopPod implements the VC function of the same name.
+func (impl *VCImpl) StopPod(podID string) (VCPod, error) {
+	return StopPod(podID)
+}
+
+// RunPod implements the VC function of the same name.
+func (impl *VCImpl) RunPod(podConfig PodConfig) (VCPod, error) {
+	return RunPod(podConfig)
+}
+
+// ListPod implements the VC function of the same name.
+func (impl *VCImpl) ListPod() ([]PodStatus, error) {
+	return ListPod()
+}
+
+// StatusPod implements the VC function of the same name.
+func (impl *VCImpl) StatusPod(podID string) (PodStatus, error) {
+	return StatusPod(podID)
+}
+
+// PausePod implements the VC function of the same name.
+func (impl *VCImpl) PausePod(podID string) (VCPod, error) {
+	return PausePod(podID)
+}
+
+// ResumePod implements the VC function of the same name.
+func (impl *VCImpl) ResumePod(podID string) (VCPod, error) {
+	return ResumePod(podID)
+}
+
+// CreateContainer implements the VC function of the same name.
+func (impl *VCImpl) CreateContainer(podID string, containerConfig ContainerConfig) (VCPod, VCContainer, error) {
+	return CreateContainer(podID, containerConfig)
+}
+
+// DeleteContainer implements the VC function of the same name.
+func (impl *VCImpl) DeleteContainer(podID, containerID string) (VCContainer, error) {
+	return DeleteContainer(podID, containerID)
+}
+
+// StartContainer implements the VC function of the same name.
+func (impl *VCImpl) StartContainer(podID, containerID string) (VCContainer, error) {
+	return StartContainer(podID, containerID)
+}
+
+// StopContainer implements the VC function of the same name.
+func (impl *VCImpl) StopContainer(podID, containerID string) (VCContainer, error) {
+	return StopContainer(podID, containerID)
+}
+
+// EnterContainer implements the VC function of the same name.
+func (impl *VCImpl) EnterContainer(podID, containerID string, cmd Cmd) (VCPod, VCContainer, *Process, error) {
+	return EnterContainer(podID, containerID, cmd)
+}
+
+// StatusContainer implements the VC function of the same name.
+func (impl *VCImpl) StatusContainer(podID, containerID string) (ContainerStatus, error) {
+	return StatusContainer(podID, containerID)
+}
+
+// KillContainer implements the VC function of the same name.
+func (impl *VCImpl) KillContainer(podID, containerID string, signal syscall.Signal, all bool) error {
+	return KillContainer(podID, containerID, signal, all)
+}
+
+// ProcessListContainer implements the VC function of the same name.
+func (impl *VCImpl) ProcessListContainer(podID, containerID string, options ProcessListOptions) (ProcessList, error) {
+	return ProcessListContainer(podID, containerID, options)
+}