a1cea8dd87
- new: introduce AllocationStrategy, Predicate, and Procurement to scheduler pkg - new: --contain-pod-resources flag (workaround for docker+systemd+mesos problems) - new: --account-for-pod-resources flag (for testing overcommitment) - bugfix: forward -v flag from minion controller to executor
74 lines
2.2 KiB
Go
74 lines
2.2 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors All rights reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package podtask
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import (
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log "github.com/golang/glog"
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mesos "github.com/mesos/mesos-go/mesosproto"
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)
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// bogus numbers that we use to make sure that there's some set of minimal offered resources on the slave
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const (
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minimalCpus = 0.01
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minimalMem = 0.25
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)
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var (
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DefaultMinimalPredicate = RequireAllPredicate([]FitPredicate{
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ValidationPredicate,
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NodeSelectorPredicate,
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MinimalPodResourcesPredicate,
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PortsPredicate,
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}).Fit
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DefaultMinimalProcurement = AllOrNothingProcurement([]Procurement{
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ValidateProcurement,
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NodeProcurement,
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MinimalPodResourcesProcurement,
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PortsProcurement,
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}).Procure
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)
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func MinimalPodResourcesPredicate(t *T, offer *mesos.Offer) bool {
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var (
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offeredCpus float64
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offeredMem float64
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)
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for _, resource := range offer.Resources {
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if resource.GetName() == "cpus" {
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offeredCpus = resource.GetScalar().GetValue()
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}
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if resource.GetName() == "mem" {
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offeredMem = resource.GetScalar().GetValue()
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}
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}
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log.V(4).Infof("trying to match offer with pod %v/%v: cpus: %.2f mem: %.2f MB", t.Pod.Namespace, t.Pod.Name, minimalCpus, minimalMem)
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if (minimalCpus > offeredCpus) || (minimalMem > offeredMem) {
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log.V(3).Infof("not enough resources for pod %v/%v: cpus: %.2f mem: %.2f MB", t.Pod.Namespace, t.Pod.Name, minimalCpus, minimalMem)
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return false
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}
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return true
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}
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func MinimalPodResourcesProcurement(t *T, details *mesos.Offer) error {
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log.V(3).Infof("Recording offer(s) %s/%s against pod %v: cpu: %.2f, mem: %.2f MB", details.Id, t.Pod.Namespace, t.Pod.Name, minimalCpus, minimalMem)
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t.Spec.CPU = minimalCpus
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t.Spec.Memory = minimalMem
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return nil
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}
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