mirror of
https://github.com/yunionio/cloudpods.git
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80 lines
2.1 KiB
Go
80 lines
2.1 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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"yunion.io/x/log"
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"yunion.io/x/onecloud/pkg/scheduler/algorithm/predicates"
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"yunion.io/x/onecloud/pkg/scheduler/api"
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"yunion.io/x/onecloud/pkg/scheduler/core"
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)
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const (
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CONTAINER_ALLOWED_TAG = "container"
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)
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// HypervisorPredicate is to select candidates match guest hyperviosr
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// runtime
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type HypervisorPredicate struct {
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predicates.BasePredicate
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}
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func (f *HypervisorPredicate) Name() string {
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return "host_hypervisor_runtime"
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}
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func (f *HypervisorPredicate) Clone() core.FitPredicate {
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return &HypervisorPredicate{}
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}
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func hostHasContainerTag(c core.Candidater) bool {
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aggs := c.Getter().HostSchedtags()
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for _, agg := range aggs {
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if agg.Name == CONTAINER_ALLOWED_TAG {
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return true
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}
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}
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return false
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}
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func hostAllowRunContainer(c core.Candidater) bool {
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getter := c.Getter()
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hostType := getter.HostType()
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if hostType == api.HostTypeKubelet {
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return true
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}
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if hostHasContainerTag(c) {
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log.Debugf("Host %q has %q tag, allow it run container", c.IndexKey(), CONTAINER_ALLOWED_TAG)
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return true
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}
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return false
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}
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func (f *HypervisorPredicate) 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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hostType := c.Getter().HostType()
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guestNeedType := u.SchedData().Hypervisor
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if guestNeedType != hostType {
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if guestNeedType == api.SchedTypeContainer && hostAllowRunContainer(c) {
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return h.GetResult()
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}
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h.Exclude2(f.Name(), hostType, guestNeedType)
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}
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return h.GetResult()
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}
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