forked from Qihoo360/wayne
/
statefulset.go
240 lines (213 loc) · 7.47 KB
/
statefulset.go
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package statefulset
import (
"encoding/json"
"fmt"
"net/http"
"k8s.io/api/apps/v1beta1"
"k8s.io/apimachinery/pkg/labels"
"github.com/Qihoo360/wayne/src/backend/client"
"github.com/Qihoo360/wayne/src/backend/controllers/base"
"github.com/Qihoo360/wayne/src/backend/models"
"github.com/Qihoo360/wayne/src/backend/models/response/errors"
"github.com/Qihoo360/wayne/src/backend/resources/namespace"
"github.com/Qihoo360/wayne/src/backend/resources/statefulset"
"github.com/Qihoo360/wayne/src/backend/util"
"github.com/Qihoo360/wayne/src/backend/util/hack"
"github.com/Qihoo360/wayne/src/backend/util/logs"
)
type KubeStatefulsetController struct {
base.APIController
}
func (c *KubeStatefulsetController) URLMapping() {
c.Mapping("Get", c.Get)
c.Mapping("Create", c.Create)
}
func (c *KubeStatefulsetController) Prepare() {
// Check administration
c.APIController.Prepare()
methodActionMap := map[string]string{
"Create": models.PermissionCreate,
"Get": models.PermissionRead,
}
_, method := c.GetControllerAndAction()
c.PreparePermission(methodActionMap, method, models.PermissionTypeKubeStatefulSet)
}
// @Title deploy
// @Description deploy tpl
// @Param body body string true "The tpl content"
// @Success 200 return ok success
// @router /:statefulsetId([0-9]+)/tpls/:tplId([0-9]+)/clusters/:cluster [post]
func (c *KubeStatefulsetController) Create() {
statefulsetId := c.GetIntParamFromURL(":statefulsetId")
tplId := c.GetIntParamFromURL(":tplId")
var kubeStatefulset v1beta1.StatefulSet
err := json.Unmarshal(c.Ctx.Input.RequestBody, &kubeStatefulset)
if err != nil {
logs.Error("Invalid statefulset tpl %v", string(c.Ctx.Input.RequestBody))
c.AbortBadRequestFormat("StatefulSet")
}
cluster := c.Ctx.Input.Param(":cluster")
cli := c.Manager(cluster)
namespaceModel, err := getNamespace(c.AppId)
if err != nil {
logs.Error("get getNamespaceMetaData error.%v", err)
c.HandleError(err)
return
}
clusterModel, err := models.ClusterModel.GetParsedMetaDataByName(cluster)
if err != nil {
logs.Error("get cluster error.%v", err)
c.HandleError(err)
return
}
statefulsetModel, err := models.StatefulsetModel.GetParseMetaDataById(int64(statefulsetId))
if err != nil {
logs.Error("get statefulset error.%v", err)
c.HandleError(err)
return
}
statefulsetPreDeploy(&kubeStatefulset, statefulsetModel, clusterModel, namespaceModel)
publishHistory := &models.PublishHistory{
Type: models.PublishTypeStatefulSet,
ResourceId: int64(statefulsetId),
ResourceName: kubeStatefulset.Name,
TemplateId: int64(tplId),
Cluster: cluster,
User: c.User.Name,
}
defer models.PublishHistoryModel.Add(publishHistory)
err = checkResourceAvailable(namespaceModel, cli.KubeClient, &kubeStatefulset, cluster)
if err != nil {
publishHistory.Status = models.ReleaseFailure
publishHistory.Message = err.Error()
c.HandleError(err)
return
}
// 发布资源到k8s平台
_, err = statefulset.CreateOrUpdateStatefulset(cli.Client, &kubeStatefulset)
if err != nil {
publishHistory.Status = models.ReleaseFailure
publishHistory.Message = err.Error()
logs.Error("deploy statefulset error.%v", err)
c.HandleError(err)
return
}
publishHistory.Status = models.ReleaseSuccess
err = addDeployStatus(statefulsetId, tplId, cluster)
if err != nil {
logs.Error("add statefulset deploy status error.%v", err)
c.HandleError(err)
return
}
err = updateMetadata(*kubeStatefulset.Spec.Replicas, statefulsetModel, cluster)
if err != nil {
logs.Error("update statefulset metadata error.%v", err)
c.HandleError(err)
return
}
c.Success("ok")
}
func addDeployStatus(statefulsetId int64, tplId int64, cluster string) error {
// 添加发布状态
publishStatus := models.PublishStatus{
ResourceId: statefulsetId,
TemplateId: tplId,
Type: models.PublishTypeStatefulSet,
Cluster: cluster,
}
err := models.PublishStatusModel.Publish(&publishStatus)
if err != nil {
logs.Error("publish publishStatus (%v) to db error.%v", publishStatus, err)
return err
}
return nil
}
func checkResourceAvailable(ns *models.Namespace, cli client.ResourceHandler, kubeStatefulset *v1beta1.StatefulSet, cluster string) error {
// this namespace can't use current cluster.
clusterMetas, ok := ns.MetaDataObj.ClusterMetas[cluster]
if !ok {
return &errors.ErrorResult{
Code: http.StatusForbidden,
SubCode: http.StatusForbidden,
Msg: fmt.Sprintf("Current namespace (%s) can't use current cluster (%s).Please contact administrator. ", ns.Name, cluster),
}
}
// check resources
selector := labels.SelectorFromSet(map[string]string{
util.NamespaceLabelKey: ns.Name,
})
namespaceResourceUsed, err := namespace.ResourcesUsageByNamespace(cli, ns.KubeNamespace, selector.String())
requestResourceList, err := statefulset.GetStatefulsetResource(cli, kubeStatefulset)
if err != nil {
logs.Error("get statefulset (%v) resource list error.%v", kubeStatefulset, err)
return err
}
if clusterMetas.ResourcesLimit.Memory != 0 &&
clusterMetas.ResourcesLimit.Memory-(namespaceResourceUsed.Memory+requestResourceList.Memory)/(1024*1024*1024) < 0 {
return &errors.ErrorResult{
Code: http.StatusForbidden,
SubCode: base.ErrorSubCodeInsufficientResource,
Msg: fmt.Sprintf("request namespace resource (memory:%dGi) is not enough for this deploy", requestResourceList.Memory/(1024*1024*1024)),
}
}
if clusterMetas.ResourcesLimit.Cpu != 0 &&
clusterMetas.ResourcesLimit.Cpu-(namespaceResourceUsed.Cpu+requestResourceList.Cpu)/1000 < 0 {
return &errors.ErrorResult{
Code: http.StatusForbidden,
SubCode: base.ErrorSubCodeInsufficientResource,
Msg: fmt.Sprintf("request namespace resource (cpu:%d) is not enough for this deploy", requestResourceList.Cpu/1000),
}
}
return nil
}
func getNamespace(appId int64) (*models.Namespace, error) {
app, err := models.AppModel.GetById(appId)
if err != nil {
logs.Warning("get app by id (%d) error. %v", appId, err)
return nil, err
}
ns, err := models.NamespaceModel.GetById(app.Namespace.Id)
if err != nil {
logs.Warning("get namespace by id (%d) error. %v", app.Namespace.Id, err)
return nil, err
}
var namespaceMetaData models.NamespaceMetaData
err = json.Unmarshal(hack.Slice(ns.MetaData), &namespaceMetaData)
if err != nil {
logs.Error("Unmarshal namespace metadata (%s) error. %v", ns.MetaData, err)
return nil, err
}
ns.MetaDataObj = namespaceMetaData
return ns, nil
}
func updateMetadata(replicas int32, statefulset *models.Statefulset, cluster string) (err error) {
statefulset.MetaDataObj.Replicas[cluster] = replicas
newMetaData, err := json.Marshal(&statefulset.MetaDataObj)
if err != nil {
logs.Error("statefulset metadata marshal error.%v", err)
return
}
statefulset.MetaData = string(newMetaData)
err = models.StatefulsetModel.UpdateById(statefulset)
if err != nil {
logs.Error("statefulset metadata update error.%v", err)
}
return
}
// @Title Get
// @Description find Statefulset by cluster
// @Success 200 {object} models.Statefulset success
// @router /:statefulset/namespaces/:namespace/clusters/:cluster [get]
func (c *KubeStatefulsetController) Get() {
cluster := c.Ctx.Input.Param(":cluster")
namespace := c.Ctx.Input.Param(":namespace")
name := c.Ctx.Input.Param(":statefulset")
manager := c.Manager(cluster)
result, err := statefulset.GetStatefulsetDetail(manager.Client, manager.CacheFactory, name, namespace)
if err != nil {
logs.Error("get kubernetes statefulset detail error.", cluster, namespace, name, err)
c.HandleError(err)
return
}
c.Success(result)
}