// NewDefaultProcurement returns the default procurement strategy that combines validation
// and responsible Mesos resource procurement. c and m are resource quantities written into
// k8s api.Pod.Spec's that don't declare resources (all containers in k8s-mesos require cpu
// and memory limits).
func NewDefaultProcurement(prototype *mesos.ExecutorInfo, eir executorinfo.Registry) Procurement {
return AllOrNothingProcurement([]Procurement{
NewNodeProcurement(),
NewPodResourcesProcurement(),
NewPortsProcurement(),
NewExecutorResourceProcurer(prototype.GetResources(), eir),
})
}
func annotationsFor(ei *mesos.ExecutorInfo) (annotations map[string]string, err error) {
annotations = map[string]string{}
if ei == nil {
return
}
var buf bytes.Buffer
if err = executorinfo.EncodeResources(&buf, ei.GetResources()); err != nil {
return
}
annotations[meta.ExecutorIdKey] = ei.GetExecutorId().GetValue()
annotations[meta.ExecutorResourcesKey] = buf.String()
return
}
func nodeInfo(si *mesos.SlaveInfo, ei *mesos.ExecutorInfo) NodeInfo {
var executorCPU, executorMem float64
// get executor resources
if ei != nil {
for _, r := range ei.GetResources() {
if r == nil || r.GetType() != mesos.Value_SCALAR {
continue
}
switch r.GetName() {
case "cpus":
executorCPU += r.GetScalar().GetValue()
case "mem":
executorMem += r.GetScalar().GetValue()
}
}
}
// get resource capacity of the node
ni := NodeInfo{}
for _, r := range si.GetResources() {
if r == nil || r.GetType() != mesos.Value_SCALAR {
continue
}
switch r.GetName() {
case "cpus":
// We intentionally take the floor of executorCPU because cores are integers
// and we would loose a complete cpu here if the value is <1.
// TODO(sttts): switch to float64 when "Machine Allocables" are implemented
ni.Cores += int(r.GetScalar().GetValue())
case "mem":
ni.Mem += int64(r.GetScalar().GetValue()) * 1024 * 1024
}
}
// TODO(sttts): subtract executorCPU/Mem from static pod resources before subtracting them from the capacity
ni.Cores -= int(executorCPU)
ni.Mem -= int64(executorMem) * 1024 * 1024
return ni
}