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allocator.go
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allocator.go
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/*
* Tencent is pleased to support the open source community by making Blueking Container Service available.
* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
* Licensed under the MIT License (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
* http://opensource.org/licenses/MIT
* 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 api
import (
"github.com/Tencent/bk-bcs/bcs-common/common/blog"
types "github.com/Tencent/bk-bcs/bcs-common/pkg/bcsapi/netservice"
"github.com/Tencent/bk-bcs/bcs-services/bcs-netservice/netservice"
"net/http"
"time"
restful "github.com/emicklei/go-restful"
)
// RegisterAllocator ip resource allocation
func RegisterAllocator(httpSvr *HTTPService, logic *netservice.NetService) *Allocator {
handler := &Allocator{
netSvr: logic,
}
webSvr := new(restful.WebService)
// add http handler
webSvr.Path("/v1/allocator").Consumes(restful.MIME_JSON).Produces(restful.MIME_JSON)
webSvr.Route(webSvr.POST("").To(handler.Add))
webSvr.Route(webSvr.DELETE("").To(handler.Delete))
webSvr.Route(webSvr.DELETE("/host/{hostip}").To(handler.HostVIPRelease))
// list all allocation ip resource by net
// webSvr.Route(webSvr.GET("/{ip}").To(handler.ListByID))
httpSvr.Register(webSvr)
return handler
}
// Allocator ip resource lean & release
type Allocator struct {
netSvr *netservice.NetService
}
// Add iplease
func (allo *Allocator) Add(request *restful.Request, response *restful.Response) {
started := time.Now()
netReq := &types.NetRequest{}
if err := request.ReadEntity(netReq); err != nil {
blog.Errorf("Allocator decode json request falied, %s", err.Error())
response.AddHeader("Content-Type", "text/plain")
response.WriteErrorString(http.StatusBadRequest, err.Error())
reportMetrics("iplease", "4xx", started)
return
}
netRes := &types.NetResponse{
Type: types.ResponseType_LEASE,
}
if netReq.Type != types.RequestType_LEASE || netReq.Lease == nil {
blog.Errorf("Allocator Lost IPLease data in request")
netRes.Code = 1
netRes.Message = "lost ip lease data in restful request"
response.WriteEntity(netRes)
reportMetrics("iplease", "4xx", started)
return
}
// check container id & host ip
if netReq.Lease.Host == "" || netReq.Lease.Container == "" {
blog.Errorf("Allocator lost Host/Container info in IPLease")
netRes.Code = 1
netRes.Message = "Host or Container info lost in IPLease"
response.WriteEntity(netRes)
reportMetrics("iplease", "4xx", started)
return
}
netRes.Lease = netReq.Lease
netRes.Data = netReq.Lease
info, err := allo.netSvr.IPLean(netReq.Lease)
if err != nil {
blog.Errorf("Allocator lease ip for host %s to container %s failed, %v", netReq.Lease.Host, netReq.Lease.Container,
err)
netRes.Code = 2
netRes.Message = err.Error()
response.WriteEntity(netRes)
reportMetrics("iplease", "5xx", started)
return
}
blog.Infof("Allocator lease ip [%s] for Host %s container %s success.", info.IPAddr, netRes.Lease.Host,
netRes.Lease.Container)
netRes.Info = append(netRes.Info, info)
netRes.Code = 0
netRes.Message = SUCCESS
response.WriteEntity(netRes)
reportMetrics("iplease", "2xx", started)
}
// Delete relesase ip address
func (allo *Allocator) Delete(request *restful.Request, response *restful.Response) {
started := time.Now()
netReq := &types.NetRequest{}
if err := request.ReadEntity(netReq); err != nil {
blog.Errorf("Allocator #DELETE# release ip address failed: %s", err.Error())
response.AddHeader("Content-Type", "text/plain")
response.WriteErrorString(http.StatusBadRequest, err.Error())
reportMetrics("ipRelease", "4xx", started)
return
}
// check data needed
netRes := &types.NetResponse{
Type: types.ResponseType_RELEASE,
}
if netReq.Type != types.RequestType_RELEASE || netReq.Release == nil {
blog.Errorf("Allocator Release ip info failed, type or iprelease data lost")
netRes.Code = 1
netRes.Message = "request type or ip release data lost"
response.WriteEntity(netRes)
reportMetrics("ipRelease", "4xx", started)
return
}
if netReq.Release.Host == "" || netReq.Release.Container == "" {
blog.Errorf("Allocator lost host/container info, release ip address failed")
netRes.Code = 2
netRes.Message = "host/container info lost, release ip address failed"
response.WriteEntity(netRes)
reportMetrics("ipRelease", "4xx", started)
return
}
if err := allo.netSvr.IPRelease(netReq.Release); err != nil {
blog.Errorf("Allocator release container %s ip failed, %s", netReq.Release.Container, err.Error())
netRes.Code = 2
netRes.Message = err.Error()
response.WriteEntity(netRes)
reportMetrics("ipRelease", "5xx", started)
return
}
netRes.Code = 0
netRes.Message = SUCCESS
netRes.Release = netReq.Release
netRes.Data = netReq.Release
response.WriteEntity(netRes)
reportMetrics("ipRelease", "2xx", started)
}
// Update update pool by ip segment
func (allo *Allocator) Update(request *restful.Request, response *restful.Response) {
blog.Warn("#######Allocator [Update] Not implemented#######")
response.AddHeader("Content-Type", "text/plain")
response.WriteErrorString(http.StatusForbidden, "Not implemented")
}
// List list all ip address under active
func (allo *Allocator) List(request *restful.Request, response *restful.Response) {
// list all active ip address
blog.Warn("#######Allocator [GET] Not implemented#######")
response.AddHeader("Content-Type", "text/plain")
response.WriteErrorString(http.StatusForbidden, "Not implemented")
}
// HostVIPRelease release all the vip in the host
func (allo *Allocator) HostVIPRelease(request *restful.Request, response *restful.Response) {
started := time.Now()
hostIP := request.PathParameter("hostip")
netRes := &types.NetResponse{
Type: types.ResponseType_RELEASE,
}
if err := allo.netSvr.HostVIPRelease(hostIP); err != nil {
blog.Errorf("Allocator release host %s vip failed, %s", hostIP, err.Error())
netRes.Code = 2
netRes.Message = err.Error()
response.WriteEntity(netRes)
reportMetrics("hostRelease", "5xx", started)
return
}
netRes.Code = 0
netRes.Message = SUCCESS
response.WriteEntity(netRes)
reportMetrics("hostRelease", "2xx", started)
}