mirror of
https://github.com/yunionio/cloudpods.git
synced 2026-06-23 15:56:27 +08:00
89 lines
2.6 KiB
Go
89 lines
2.6 KiB
Go
// Copyright 2019 Yunion
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package guest
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import (
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"database/sql"
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"fmt"
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"yunion.io/x/pkg/utils"
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"yunion.io/x/onecloud/pkg/apis/compute"
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"yunion.io/x/onecloud/pkg/cloudprovider"
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"yunion.io/x/onecloud/pkg/compute/models"
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"yunion.io/x/onecloud/pkg/scheduler/algorithm/predicates"
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"yunion.io/x/onecloud/pkg/scheduler/core"
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)
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type ImagePredicate struct {
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predicates.BasePredicate
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cacheImage *models.SCachedimage
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zones []string
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}
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func (f *ImagePredicate) Name() string {
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return "disk_image"
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}
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func (f *ImagePredicate) Clone() core.FitPredicate {
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return &ImagePredicate{}
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}
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func (f *ImagePredicate) PreExecute(u *core.Unit, cs []core.Candidater) (bool, error) {
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disks := u.SchedData().Disks
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if len(disks) == 0 {
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return false, nil
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}
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imageId := disks[0].ImageId
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if len(imageId) == 0 || u.SchedData().PreferZone != "" {
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return false, nil
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}
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if !utils.IsInStringArray(u.SchedData().Hypervisor, compute.PUBLIC_CLOUD_HYPERVISORS) && !utils.IsInStringArray(u.SchedData().Hypervisor, compute.PRIVATE_CLOUD_HYPERVISORS) {
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return false, nil
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}
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obj, err := models.CachedimageManager.FetchById(imageId)
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if err != nil {
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// 忽略第一次上传到glance镜像后未缓存的记录
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if err == sql.ErrNoRows {
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return false, nil
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}
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return false, fmt.Errorf("Fetch CachedImage %s: %v", imageId, err)
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}
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cacheImage := obj.(*models.SCachedimage)
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if cacheImage.ImageType != cloudprovider.CachedImageTypeSystem {
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return false, nil
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}
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zones, err := cacheImage.GetUsableZoneIds()
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if err != nil {
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return false, fmt.Errorf("Fetch CachedImage %s zones: %v", cacheImage.GetName(), err)
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}
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f.cacheImage = cacheImage
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f.zones = zones
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return true, nil
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}
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func (f *ImagePredicate) Execute(u *core.Unit, c core.Candidater) (bool, []core.PredicateFailureReason, error) {
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h := predicates.NewPredicateHelper(f, u, c)
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inZone := false
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hostZoneId := c.Getter().Zone().GetId()
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if utils.IsInStringArray(hostZoneId, f.zones) {
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inZone = true
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}
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if !inZone {
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h.Exclude(fmt.Sprintf("Host zone %s not in image usable zones %v", hostZoneId, f.zones))
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}
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return h.GetResult()
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}
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