Add /machine endpoint for 2.0

Only difference from v1 /machine is that both h/w and s/w state is included.

Author: rjnagal

api/versions.go

@@ -37,6 +37,8 @@ const (
 	specApi          = "spec"
 	eventsApi        = "events"
 	storageApi       = "storage"
+	attributesApi    = "attributes"
+	versionApi       = "version"
 	typeName         = "name"
 	typeDocker       = "docker"
 )
@@ -309,6 +311,35 @@ func (self *version2_0) SupportedRequestTypes() []string {
 
 func (self *version2_0) HandleRequest(requestType string, request []string, m manager.Manager, w http.ResponseWriter, r *http.Request) error {
 	switch requestType {
+	case versionApi:
+		glog.V(2).Infof("Api - Version")
+		versionInfo, err := m.GetVersionInfo()
+		if err != nil {
+			return err
+		}
+		return writeResult(versionInfo.CadvisorVersion, w)
+	case attributesApi:
+		glog.V(2).Info("Api - Attributes")
+
+		machineInfo, err := m.GetMachineInfo()
+		if err != nil {
+			return err
+		}
+		versionInfo, err := m.GetVersionInfo()
+		if err != nil {
+			return err
+		}
+		info := v2.GetAttributes(machineInfo, versionInfo)
+		return writeResult(info, w)
+	case machineApi:
+		glog.V(2).Info("Api - Machine")
+
+		// TODO(rjnagal): Move machineInfo from v1.
+		machineInfo, err := m.GetMachineInfo()
+		if err != nil {
+			return err
+		}
+		return writeResult(machineInfo, w)
 	case summaryApi:
 		containerName := getContainerName(request)
 		glog.V(2).Infof("Api - Summary(%v)", containerName)

info/v2/machine.go

@@ -0,0 +1,80 @@
+// Copyright 2015 Google Inc. All Rights Reserved.
+//
+// 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 v2
+
+import (
+	// TODO(rjnagal): Move structs from v1.
+	"github.com/google/cadvisor/info/v1"
+)
+
+type Attributes struct {
+	// Kernel version.
+	KernelVersion string `json:"kernel_version"`
+
+	// OS image being used for cadvisor container, or host image if running on host directly.
+	ContainerOsVersion string `json:"container_os_version"`
+
+	// Docker version.
+	DockerVersion string `json:"docker_version"`
+
+	// cAdvisor version.
+	CadvisorVersion string `json:"cadvisor_version"`
+
+	// The number of cores in this machine.
+	NumCores int `json:"num_cores"`
+
+	// Maximum clock speed for the cores, in KHz.
+	CpuFrequency uint64 `json:"cpu_frequency_khz"`
+
+	// The amount of memory (in bytes) in this machine
+	MemoryCapacity int64 `json:"memory_capacity"`
+
+	// The machine id
+	MachineID string `json:"machine_id"`
+
+	// The system uuid
+	SystemUUID string `json:"system_uuid"`
+
+	// Filesystems on this machine.
+	Filesystems []v1.FsInfo `json:"filesystems"`
+
+	// Disk map
+	DiskMap map[string]v1.DiskInfo `json:"disk_map"`
+
+	// Network devices
+	NetworkDevices []v1.NetInfo `json:"network_devices"`
+
+	// Machine Topology
+	// Describes cpu/memory layout and hierarchy.
+	Topology []v1.Node `json:"topology"`
+}
+
+func GetAttributes(mi *v1.MachineInfo, vi *v1.VersionInfo) Attributes {
+	return Attributes{
+		KernelVersion:      vi.KernelVersion,
+		ContainerOsVersion: vi.ContainerOsVersion,
+		DockerVersion:      vi.DockerVersion,
+		CadvisorVersion:    vi.CadvisorVersion,
+		NumCores:           mi.NumCores,
+		CpuFrequency:       mi.CpuFrequency,
+		MemoryCapacity:     mi.MemoryCapacity,
+		MachineID:          mi.MachineID,
+		SystemUUID:         mi.SystemUUID,
+		Filesystems:        mi.Filesystems,
+		DiskMap:            mi.DiskMap,
+		NetworkDevices:     mi.NetworkDevices,
+		Topology:           mi.Topology,
+	}
+}