forked from goodrain/rainbond
/
K8S.go
785 lines (728 loc) · 22.4 KB
/
K8S.go
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// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package k8s
import (
"encoding/json"
"errors"
"fmt"
"math"
"os"
"strings"
"time"
"github.com/pquerna/ffjson/ffjson"
conf "github.com/goodrain/rainbond/cmd/node/option"
"github.com/goodrain/rainbond/node/api/model"
"github.com/goodrain/rainbond/node/core/store"
"github.com/Sirupsen/logrus"
v3 "github.com/coreos/etcd/clientv3"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/types"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/pkg/api"
"k8s.io/client-go/pkg/api/v1"
policy "k8s.io/client-go/pkg/apis/policy/v1beta1"
)
const (
Force = true
IgnoreDaemonsets = true
DeleteLocalData = true
EvictionKind = "Eviction"
EvictionSubresource = "pods/eviction"
kDaemonsetFatal = "DaemonSet-managed pods (use --ignore-daemonsets to ignore)"
kDaemonsetWarning = "Ignoring DaemonSet-managed pods"
kLocalStorageFatal = "pods with local storage (use --delete-local-data to override)"
kLocalStorageWarning = "Deleting pods with local storage"
kUnmanagedFatal = "pods not managed by ReplicationController, ReplicaSet, Job, DaemonSet or StatefulSet (use --force to override)"
kUnmanagedWarning = "Deleting pods not managed by ReplicationController, ReplicaSet, Job, DaemonSet or StatefulSet"
)
var (
clientSet *kubernetes.Clientset
)
type podFilter func(v1.Pod) (include bool, w *warning, f *fatal)
type podStatuses map[string][]string
type warning struct {
string
}
type fatal struct {
string
}
//GetNodeByName get node
func GetNodeByName(nodename string) (*v1.Node, error) {
opt := metav1.GetOptions{}
return K8S.Clientset.CoreV1().Nodes().Get(nodename, opt)
}
//CordonOrUnCordon 节点是否调度属性处理
// drain:true 不可调度
func CordonOrUnCordon(nodeName string, drain bool) (*v1.Node, error) {
data := fmt.Sprintf(`{"spec":{"unschedulable":%t}}`, drain)
node, err := K8S.Clientset.CoreV1().Nodes().Patch(nodeName, types.StrategicMergePatchType, []byte(data))
if err != nil {
return node, err
}
return node, nil
}
//UpdateLabels update lables
func UpdateLabels(nodeName string, labels map[string]string) (*v1.Node, error) {
labelStr, err := ffjson.Marshal(labels)
if err != nil {
return nil, err
}
data := fmt.Sprintf(`{"metadata":{"labels":%s}}`, string(labelStr))
node, err := K8S.Clientset.CoreV1().Nodes().Patch(nodeName, types.StrategicMergePatchType, []byte(data))
if err != nil {
return node, err
}
return node, nil
}
//DeleteOrEvictPodsSimple 驱逐Pod
func DeleteOrEvictPodsSimple(nodeName string) error {
pods, err := getPodsToDeletion(nodeName)
if err != nil {
logrus.Infof("get pods of node %s failed ", nodeName)
return err
}
policyGroupVersion, err := SupportEviction(K8S.Clientset)
if err != nil {
return err
}
if policyGroupVersion == "" {
return fmt.Errorf("the server can not support eviction subresource")
}
for _, v := range pods {
evictPod(v, policyGroupVersion)
}
return nil
}
// deleteOrEvictPods deletes or evicts the pods on the api server
func deleteOrEvictPods(pods []v1.Pod) error {
if len(pods) == 0 {
return nil
}
policyGroupVersion, err := SupportEviction(K8S.Clientset)
if err != nil {
return err
}
getPodFn := func(namespace, name string) (*v1.Pod, error) {
return K8S.Clientset.CoreV1().Pods(namespace).Get(name, metav1.GetOptions{})
}
return evictPods(pods, policyGroupVersion, getPodFn)
//if len(policyGroupVersion) > 0 {
// //return evictPods(pods, policyGroupVersion, getPodFn)
//} else {
// return deletePods(pods, getPodFn)
//}
}
func deletePods(pods []v1.Pod, getPodFn func(namespace, name string) (*v1.Pod, error)) error {
// 0 timeout means infinite, we use MaxInt64 to represent it.
var globalTimeout time.Duration
if conf.Config.ReqTimeout == 0 {
//if Timeout == 0 {
globalTimeout = time.Duration(math.MaxInt64)
} else {
globalTimeout = 1
//globalTimeout = Timeout
}
for _, pod := range pods {
err := deletePod(pod)
if err != nil && !apierrors.IsNotFound(err) {
return err
}
}
_, err := waitForDelete(pods, time.Second*1, globalTimeout, false, getPodFn)
return err
}
func waitForDelete(pods []v1.Pod, interval, timeout time.Duration, usingEviction bool, getPodFn func(string, string) (*v1.Pod, error)) ([]v1.Pod, error) {
var verbStr string
if usingEviction {
verbStr = "evicted"
} else {
verbStr = "deleted"
}
err := wait.PollImmediate(interval, timeout, func() (bool, error) {
pendingPods := []v1.Pod{}
for i, pod := range pods {
p, err := getPodFn(pod.Namespace, pod.Name)
if apierrors.IsNotFound(err) || (p != nil && p.ObjectMeta.UID != pod.ObjectMeta.UID) {
fmt.Println(verbStr)
//cmdutil.PrintSuccess(o.mapper, false, o.Out, "pod", pod.Name, false, verbStr)//todo
continue
} else if err != nil {
return false, err
} else {
pendingPods = append(pendingPods, pods[i])
}
}
pods = pendingPods
if len(pendingPods) > 0 {
return false, nil
}
return true, nil
})
return pods, err
}
func deletePod(pod v1.Pod) error {
deleteOptions := &metav1.DeleteOptions{}
//if GracePeriodSeconds >= 0 {
//if 1 >= 0 {
// //gracePeriodSeconds := int64(GracePeriodSeconds)
// gracePeriodSeconds := int64(1)
// deleteOptions.GracePeriodSeconds = &gracePeriodSeconds
//}
gracePeriodSeconds := int64(1)
deleteOptions.GracePeriodSeconds = &gracePeriodSeconds
return K8S.Clientset.CoreV1().Pods(pod.Namespace).Delete(pod.Name, deleteOptions)
}
//evictPod 驱离POD
func evictPod(pod v1.Pod, policyGroupVersion string) error {
deleteOptions := &metav1.DeleteOptions{}
//if o.GracePeriodSeconds >= 0 {
// gracePeriodSeconds := int64(o.GracePeriodSeconds)
// deleteOptions.GracePeriodSeconds = &gracePeriodSeconds
//}
eviction := &policy.Eviction{
///Users/goodrain/go/src/k8s.io/kubernetes/pkg/apis/policy/types.go
///Users/goodrain/go/src/k8s.io/apimachinery/pkg/apis/meta/v1/types.go
TypeMeta: metav1.TypeMeta{
APIVersion: policyGroupVersion,
Kind: EvictionKind,
},
ObjectMeta: metav1.ObjectMeta{
Name: pod.Name,
Namespace: pod.Namespace,
},
DeleteOptions: deleteOptions,
}
// Remember to change change the URL manipulation func when Evction's version change
return K8S.Clientset.Policy().Evictions(eviction.Namespace).Evict(eviction)
}
func evictPods(pods []v1.Pod, policyGroupVersion string, getPodFn func(namespace, name string) (*v1.Pod, error)) error {
doneCh := make(chan bool, len(pods))
errCh := make(chan error, 1)
for _, pod := range pods {
go func(pod v1.Pod, doneCh chan bool, errCh chan error) {
var err error
for {
err = evictPod(pod, policyGroupVersion)
if err == nil {
break
} else if apierrors.IsNotFound(err) {
doneCh <- true
return
} else if apierrors.IsTooManyRequests(err) {
time.Sleep(5 * time.Second)
} else {
errCh <- fmt.Errorf("error when evicting pod %q: %v", pod.Name, err)
return
}
}
podArray := []v1.Pod{pod}
_, err = waitForDelete(podArray, time.Second*1, time.Duration(math.MaxInt64), true, getPodFn)
if err == nil {
doneCh <- true
} else {
errCh <- fmt.Errorf("error when waiting for pod %q terminating: %v", pod.Name, err)
}
}(pod, doneCh, errCh)
}
doneCount := 0
// 0 timeout means infinite, we use MaxInt64 to represent it.
var globalTimeout time.Duration
globalTimeout = time.Duration(math.MaxInt64)
//if conf.Config.ReqTimeout == 0 {
// //if Timeout == 0 {
// globalTimeout = time.Duration(math.MaxInt64)
//} else {
// //globalTimeout = Timeout
// globalTimeout = 1000
//}
for {
select {
case err := <-errCh:
return err
case <-doneCh:
doneCount++
if doneCount == len(pods) {
return nil
}
case <-time.After(globalTimeout):
return fmt.Errorf("Drain did not complete within %v", globalTimeout)
}
}
}
// SupportEviction uses Discovery API to find out if the server support eviction subresource
// If support, it will return its groupVersion; Otherwise, it will return ""
func SupportEviction(clientset *kubernetes.Clientset) (string, error) {
//K8S.Clientset.Discovery().ServerGroups()
discoveryClient := clientset.Discovery()
groupList, err := discoveryClient.ServerGroups()
if err != nil {
return "", err
}
foundPolicyGroup := false
var policyGroupVersion string
for _, group := range groupList.Groups {
if group.Name == "policy" {
foundPolicyGroup = true
policyGroupVersion = group.PreferredVersion.GroupVersion
break
}
}
if !foundPolicyGroup {
return "", nil
}
resourceList, err := discoveryClient.ServerResourcesForGroupVersion("v1")
if err != nil {
return "", err
}
for _, resource := range resourceList.APIResources {
if resource.Name == EvictionSubresource && resource.Kind == EvictionKind {
return policyGroupVersion, nil
}
}
return "", nil
}
func mirrorPodFilter(pod v1.Pod) (bool, *warning, *fatal) {
if _, found := pod.ObjectMeta.Annotations["kubernetes.io/config.mirror"]; found {
return false, nil, nil
}
return true, nil, nil
}
func hasLocalStorage(pod v1.Pod) bool {
for _, volume := range pod.Spec.Volumes {
if volume.EmptyDir != nil {
return true
}
}
return false
}
func localStorageFilter(pod v1.Pod) (bool, *warning, *fatal) {
if !hasLocalStorage(pod) {
return true, nil, nil
}
if !DeleteLocalData {
return false, nil, &fatal{kLocalStorageFatal}
}
return true, &warning{kLocalStorageWarning}, nil
}
func getController(sr *api.SerializedReference) (interface{}, error) {
switch sr.Reference.Kind {
case "ReplicationController":
return K8S.Clientset.Core().ReplicationControllers(sr.Reference.Namespace).Get(sr.Reference.Name, metav1.GetOptions{})
case "DaemonSet":
return K8S.Clientset.Extensions().DaemonSets(sr.Reference.Namespace).Get(sr.Reference.Name, metav1.GetOptions{})
case "Job":
return K8S.Clientset.Batch().Jobs(sr.Reference.Namespace).Get(sr.Reference.Name, metav1.GetOptions{})
case "ReplicaSet":
return K8S.Clientset.Extensions().ReplicaSets(sr.Reference.Namespace).Get(sr.Reference.Name, metav1.GetOptions{})
case "StatefulSet":
return K8S.Clientset.Apps().StatefulSets(sr.Reference.Namespace).Get(sr.Reference.Name, metav1.GetOptions{})
}
return nil, fmt.Errorf("Unknown controller kind %q", sr.Reference.Kind)
}
func getPodCreator(pod v1.Pod) (*api.SerializedReference, error) {
_, found := pod.ObjectMeta.Annotations[api.CreatedByAnnotation]
if !found {
return nil, nil
}
// Now verify that the specified creator actually exists.
sr := &api.SerializedReference{}
//if err := runtime.DecodeInto(util.NewFactory(nil).Decoder(true), []byte(creatorRef), sr); err != nil {
// return nil, err
//}
// We assume the only reason for an error is because the controller is
// gone/missing, not for any other cause. TODO(mml): something more
// sophisticated than this
_, err := getController(sr)
if err != nil {
return nil, err
}
return sr, nil
}
func unreplicatedFilter(pod v1.Pod) (bool, *warning, *fatal) {
if pod.Status.Phase == v1.PodSucceeded || pod.Status.Phase == v1.PodFailed {
return true, nil, nil
}
sr, err := getPodCreator(pod)
if err != nil {
// if we're forcing, remove orphaned pods with a warning
if apierrors.IsNotFound(err) && Force {
return true, &warning{err.Error()}, nil
}
return false, nil, &fatal{err.Error()}
}
if sr != nil {
return true, nil, nil
}
if !Force {
return false, nil, &fatal{kUnmanagedFatal}
}
return true, &warning{kUnmanagedWarning}, nil
}
func daemonsetFilter(pod v1.Pod) (bool, *warning, *fatal) {
sr, err := getPodCreator(pod)
if err != nil {
// if we're forcing, remove orphaned pods with a warning
if apierrors.IsNotFound(err) && Force {
return true, &warning{err.Error()}, nil
}
return false, nil, &fatal{err.Error()}
}
if sr == nil || sr.Reference.Kind != "DaemonSet" {
return true, nil, nil
}
if _, err := clientSet.Extensions().DaemonSets(sr.Reference.Namespace).Get(sr.Reference.Name, metav1.GetOptions{}); err != nil {
return false, nil, &fatal{err.Error()}
}
if !IgnoreDaemonsets {
return false, nil, &fatal{kDaemonsetFatal}
}
return false, &warning{kDaemonsetWarning}, nil
}
func getPodsToDeletion(nodeName string) (pods []v1.Pod, err error) {
podList, err := K8S.Clientset.Core().Pods(metav1.NamespaceAll).List(metav1.ListOptions{
FieldSelector: fields.SelectorFromSet(fields.Set{"spec.nodeName": nodeName}).String()})
if err != nil {
return pods, err
}
for _, pod := range podList.Items {
pods = append(pods, pod)
}
return pods, nil
}
//GetPodsByNodeName get pods by nodename
func GetPodsByNodeName(nodeName string) (pods []v1.Pod, err error) {
podList, err := K8S.Clientset.Core().Pods(metav1.NamespaceAll).List(metav1.ListOptions{
FieldSelector: fields.SelectorFromSet(fields.Set{"spec.nodeName": nodeName}).String(),
})
if err != nil {
return pods, err
}
p := make(map[string]v1.Pod)
for _, pod := range podList.Items {
p[string(pod.UID)] = pod
}
for _, v := range p {
pods = append(pods, v)
}
return pods, nil
}
//GetAllPods get all pods
func GetAllPods() (pods []v1.Pod, err error) {
podList, err := K8S.Clientset.Core().Pods(metav1.NamespaceAll).List(metav1.ListOptions{})
if err != nil {
return pods, err
}
p := make(map[string]v1.Pod)
for _, pod := range podList.Items {
p[string(pod.UID)] = pod
}
for _, v := range p {
pods = append(pods, v)
}
return pods, nil
}
func getPodsForDeletion(nodeName string) (pods []v1.Pod, err error) {
podList, err := K8S.Clientset.Core().Pods(metav1.NamespaceAll).List(metav1.ListOptions{
FieldSelector: fields.SelectorFromSet(fields.Set{"spec.nodeName": nodeName}).String()})
if err != nil {
return pods, err
}
ws := podStatuses{}
fs := podStatuses{}
for _, pod := range podList.Items {
podOk := true
for _, filt := range []podFilter{mirrorPodFilter, localStorageFilter, unreplicatedFilter, daemonsetFilter} {
filterOk, w, f := filt(pod)
podOk = podOk && filterOk
if w != nil {
ws[w.string] = append(ws[w.string], pod.Name)
}
if f != nil {
fs[f.string] = append(fs[f.string], pod.Name)
}
}
if podOk {
pods = append(pods, pod)
}
}
if len(fs) > 0 {
return []v1.Pod{}, errors.New(fs.Message())
}
if len(ws) > 0 {
fmt.Fprintf(os.Stdout, "WARNING: %s\n", ws.Message())
}
return pods, nil
}
func (ps podStatuses) Message() string {
msgs := []string{}
for key, pods := range ps {
msgs = append(msgs, fmt.Sprintf("%s: %s", key, strings.Join(pods, ", ")))
}
return strings.Join(msgs, "; ")
}
//DeleteNode k8s节点下线
func DeleteNode(nodename string) error {
_, err := GetNodeByName(nodename)
if err != nil {
logrus.Infof("get k8s node %s failed ", nodename)
return err
}
//节点禁止调度
_, err = CordonOrUnCordon(nodename, true)
if err != nil {
logrus.Infof("cordon node %s failed ", nodename)
return err
}
//节点pod驱离
err = DeleteOrEvictPodsSimple(nodename)
if err != nil {
logrus.Infof("delete or evict pods of node %s failed ", nodename)
return err
}
//删除节点
err = deleteNodeWithoutPods(nodename)
if err != nil {
logrus.Infof("delete node with given name failed %s failed ", nodename)
return err
}
return nil
}
func deleteNodeWithoutPods(name string) error {
opt := &metav1.DeleteOptions{}
err := K8S.Clientset.Nodes().Delete(name, opt)
if err != nil {
return err
}
return nil
}
//CreatK8sNodeFromRainbonNode 创建k8s node
func CreatK8sNodeFromRainbonNode(rainbondNode *model.HostNode) (*v1.Node, error) {
capacity := make(v1.ResourceList)
capacity[v1.ResourceCPU] = *resource.NewQuantity(rainbondNode.AvailableCPU, resource.BinarySI)
capacity[v1.ResourceMemory] = *resource.NewQuantity(rainbondNode.AvailableMemory, resource.BinarySI)
node := &v1.Node{
ObjectMeta: metav1.ObjectMeta{
Name: rainbondNode.ID,
Labels: rainbondNode.Labels,
},
Spec: v1.NodeSpec{
Unschedulable: rainbondNode.Unschedulable,
},
Status: v1.NodeStatus{
Capacity: capacity,
Allocatable: capacity,
Addresses: []v1.NodeAddress{
v1.NodeAddress{Type: v1.NodeHostName, Address: rainbondNode.HostName},
v1.NodeAddress{Type: v1.NodeInternalIP, Address: rainbondNode.InternalIP},
v1.NodeAddress{Type: v1.NodeExternalIP, Address: rainbondNode.ExternalIP},
},
},
}
savedNode, err := K8S.Clientset.Nodes().Create(node)
if err != nil {
return nil, err
}
logrus.Info("creating new node success , details: %v ", savedNode)
return node, nil
}
func LabelMulti(k8sNodeName string, keys []string) error {
opt := metav1.GetOptions{}
patchSet, err := K8S.Clientset.Nodes().Get(k8sNodeName, opt)
if err != nil {
logrus.Errorf("get node %s fail,details : %s", k8sNodeName, err.Error())
return err
}
labels := make(map[string]string, len(keys))
patchSet.SetLabels(labels)
//patchNoLabelJSON, err := json.Marshal(patchSet)
//if err != nil {
// logrus.Errorf("marshal patchset %s fail,details : %s", k8sNodeName, err.Error())
// return err
//}
//_, err = K8S.Clientset.Nodes().Patch(k8sNodeName, types.MergePatchType, patchNoLabelJSON)
K8S.Clientset.Nodes().Update(patchSet)
opt2 := metav1.GetOptions{}
patchSetFinal, err := K8S.Clientset.Nodes().Get(k8sNodeName, opt2)
if err != nil {
logrus.Errorf("get node %s fail,details : %s", k8sNodeName, err.Error())
return err
}
for _, v := range keys {
labels[v] = "default"
}
logrus.Infof("get k8s node labels %v", patchSetFinal.Labels)
patchSetFinal.Labels = labels
patchSetInJSON, err := json.Marshal(patchSetFinal)
if err != nil {
logrus.Errorf("marshal patchset %s fail,details : %s", k8sNodeName, err.Error())
return err
}
_, err = K8S.Clientset.Nodes().Patch(k8sNodeName, types.StrategicMergePatchType, patchSetInJSON)
if err != nil {
logrus.Errorf("patch node %s fail,details : %s", k8sNodeName, err.Error())
return err
}
return nil
}
func MarkLabel(k8sNodeName, key, value string) error {
opt := metav1.GetOptions{}
patchSet, err := K8S.Clientset.Nodes().Get(k8sNodeName, opt)
if err != nil {
logrus.Errorf("get node %s fail,details : %s", k8sNodeName, err.Error())
return err
}
labels := make(map[string]string, 1)
labels[key] = value
patchSet.SetLabels(labels)
patchSetInJSON, err := json.Marshal(patchSet)
if err != nil {
logrus.Errorf("marshal patchset %s fail,details : %s", k8sNodeName, err.Error())
return err
}
_, err = K8S.Clientset.Nodes().Patch(k8sNodeName, types.StrategicMergePatchType, patchSetInJSON)
if err != nil {
logrus.Errorf("patch node %s fail,details : %s", k8sNodeName, err.Error())
return err
}
return nil
}
func CreateK8sNode(node *model.HostNode) (*v1.Node, error) {
cpu, err := resource.ParseQuantity(fmt.Sprintf("%dm", node.AvailableCPU*1000))
if err != nil {
return nil, err
}
mem, err := resource.ParseQuantity(fmt.Sprintf("%dKi", node.AvailableMemory*1024*1024))
if err != nil {
return nil, err
}
nameAddress := v1.NodeAddress{
Type: v1.NodeHostName,
Address: node.HostName,
}
internalIP := v1.NodeAddress{
Type: v1.NodeInternalIP,
Address: node.InternalIP,
}
externalIP := v1.NodeAddress{
Type: v1.NodeExternalIP,
Address: node.ExternalIP,
}
k8sNode := &v1.Node{
ObjectMeta: metav1.ObjectMeta{
UID: types.UID(node.ID), //todo 不知道create的时候用不用这个
Name: node.HostName,
Labels: node.Labels,
},
Spec: v1.NodeSpec{
Unschedulable: node.Unschedulable,
},
Status: v1.NodeStatus{
Allocatable: v1.ResourceList{v1.ResourceCPU: cpu, v1.ResourceMemory: mem},
Addresses: []v1.NodeAddress{nameAddress, internalIP, externalIP},
},
}
return k8sNode, nil
}
func DeleteSource(key string) error {
if key == "" {
return errors.New("key or source can not nil")
}
_, err := store.DefalutClient.Delete(key + "/info")
return err
}
func GetSource(key string) (node *model.HostNode, err error) {
node = &model.HostNode{}
if key == "" {
return node, errors.New("key or source can not nil")
}
key = key + "/info"
resp, err := store.DefalutClient.Get(key, v3.WithPrefix())
if err != nil {
logrus.Warnf("get resp from etcd with given key %s failed", err.Error())
return
}
if resp.Count == 0 {
return nil, errors.New("can't found node with given key " + key)
} else if resp.Count == 1 {
err = json.Unmarshal(resp.Kvs[0].Value, node)
if err != nil {
logrus.Infof("从etcd获取node unmarshal 失败 : %s", err.Error())
return &model.HostNode{}, err
}
return node, nil
} else {
return nil, errors.New("found multi node with given key " + key)
}
}
func GetSourceList() ([]*model.HostNode, error) {
key := conf.Config.K8SNode
if key == "" {
return nil, errors.New("key can not nil")
}
//resp, err := DefalutClient.Get(conf.Config.Cmd, client.WithPrefix())
res, err := store.DefalutClient.Get(conf.Config.K8SNode, v3.WithPrefix())
if err != nil {
return nil, err
}
//if !res.Node.Dir {
// return nil, fmt.Errorf("%s is not dir. don't list", key)
//}
var list []*model.HostNode
for _, j := range res.Kvs {
hostnode := new(model.HostNode)
if e := json.Unmarshal(j.Value, hostnode); e != nil {
logrus.Warnf("job[%s] umarshal err: %s", string(j.Key), e.Error())
continue
}
list = append(list, hostnode)
}
return list, nil
}
//AddSource 添加资源
func AddSource(key string, object interface{}) error {
logrus.Infof("updating source who's key is %s", key)
if key == "" {
return errors.New("key or source can not nil")
}
var data string
var err error
switch object.(type) {
case string:
data = object.(string)
break
case int:
data = fmt.Sprintf("%d", object)
break
case []byte:
data = string(object.([]byte))
break
default:
dataB, err := json.Marshal(object)
if err != nil {
return err
}
data = string(dataB)
}
key = key + "/info"
_, err = store.DefalutClient.Put(key, data)
if err != nil {
return err
}
return nil
}