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Add local storage (scratch space) allocatable support

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This PR adds the support for allocatable local storage (scratch space).
This feature is only for root file system which is shared by kubernetes
componenets, users' containers and/or images. User could use
--kube-reserved flag to reserve the storage for kube system components.
If the allocatable storage for user's pods is used up, some pods will be
evicted to free the storage resource.
This commit is contained in:
Jing Xu
2017-05-25 12:29:19 -07:00
parent 68dd748ba1
commit dd67e96c01
11 changed files with 461 additions and 17 deletions
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10
pkg/kubelet/cadvisor/util.go
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@@ -18,6 +18,7 @@ package cadvisor
import (
cadvisorapi "github.com/google/cadvisor/info/v1"
cadvisorapi2 "github.com/google/cadvisor/info/v2"
"k8s.io/apimachinery/pkg/api/resource"
"k8s.io/kubernetes/pkg/api/v1"
)
@@ -33,3 +34,12 @@ func CapacityFromMachineInfo(info *cadvisorapi.MachineInfo) v1.ResourceList {
}
return c
}
func StorageScratchCapacityFromFsInfo(info cadvisorapi2.FsInfo) v1.ResourceList {
c := v1.ResourceList{
v1.ResourceStorage: *resource.NewQuantity(
int64(info.Capacity),
resource.BinarySI),
}
return c
}