kubernetes/pkg/registry/pod_registry.go
2014-06-19 13:31:42 -07:00

139 lines
3.6 KiB
Go

/*
Copyright 2014 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 registry
import (
"encoding/json"
"fmt"
"log"
"strings"
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/apiserver"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client"
"github.com/GoogleCloudPlatform/kubernetes/pkg/cloudprovider"
"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
)
// PodRegistryStorage implements the RESTStorage interface in terms of a PodRegistry
type PodRegistryStorage struct {
registry PodRegistry
containerInfo client.ContainerInfo
scheduler Scheduler
cloud cloudprovider.Interface
}
func MakePodRegistryStorage(registry PodRegistry, containerInfo client.ContainerInfo, scheduler Scheduler, cloud cloudprovider.Interface) apiserver.RESTStorage {
return &PodRegistryStorage{
registry: registry,
containerInfo: containerInfo,
scheduler: scheduler,
cloud: cloud,
}
}
func (storage *PodRegistryStorage) List(selector labels.Selector) (interface{}, error) {
var result api.PodList
pods, err := storage.registry.ListPods(selector)
if err == nil {
result.Items = pods
}
result.Kind = "cluster#podList"
return result, err
}
func makePodStatus(info interface{}) string {
if state, ok := info.(map[string]interface{})["State"]; ok {
if running, ok := state.(map[string]interface{})["Running"]; ok {
if running.(bool) {
return "Running"
} else {
return "Stopped"
}
}
}
return "Pending"
}
func getInstanceIP(cloud cloudprovider.Interface, host string) string {
if cloud == nil {
return ""
}
instances, ok := cloud.Instances()
if instances == nil || !ok {
return ""
}
ix := strings.Index(host, ".")
if ix != -1 {
host = host[:ix]
}
addr, err := instances.IPAddress(host)
if err != nil {
log.Printf("Error getting instance IP: %#v", err)
return ""
}
return addr.String()
}
func (storage *PodRegistryStorage) Get(id string) (interface{}, error) {
pod, err := storage.registry.GetPod(id)
if err != nil {
return pod, err
}
if pod == nil {
return pod, nil
}
if storage.containerInfo != nil {
info, err := storage.containerInfo.GetContainerInfo(pod.CurrentState.Host, id)
if err != nil {
return pod, err
}
pod.CurrentState.Info = info
pod.CurrentState.Status = makePodStatus(info)
}
pod.CurrentState.HostIP = getInstanceIP(storage.cloud, pod.CurrentState.Host)
pod.Kind = "cluster#pod"
return pod, err
}
func (storage *PodRegistryStorage) Delete(id string) error {
return storage.registry.DeletePod(id)
}
func (storage *PodRegistryStorage) Extract(body string) (interface{}, error) {
pod := api.Pod{}
err := json.Unmarshal([]byte(body), &pod)
pod.Kind = "cluster#pod"
return pod, err
}
func (storage *PodRegistryStorage) Create(pod interface{}) error {
podObj := pod.(api.Pod)
if len(podObj.ID) == 0 {
return fmt.Errorf("id is unspecified: %#v", pod)
}
machine, err := storage.scheduler.Schedule(podObj)
if err != nil {
return err
}
return storage.registry.CreatePod(machine, podObj)
}
func (storage *PodRegistryStorage) Update(pod interface{}) error {
return storage.registry.UpdatePod(pod.(api.Pod))
}