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Define stats api fields for exporting filesystem metrics #17331

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This commit is contained in:
Phillip Wittrock 2016-01-12 15:07:43 -08:00
parent 6dd867108b
commit bb216e53da
1 changed files with 32 additions and 0 deletions
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32
pkg/kubelet/server/stats/types.go
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@ -45,6 +45,9 @@ type NodeStats struct {
Memory *MemoryStats `json:"memory,omitempty"` Memory *MemoryStats `json:"memory,omitempty"`
// Stats pertaining to network resources. // Stats pertaining to network resources.
Network *NetworkStats `json:"network,omitempty"` Network *NetworkStats `json:"network,omitempty"`
// Stats pertaining to total usage of filesystem resources on the rootfs used by node k8s components.
// NodeFs.Used is the total bytes used on the filesystem.
Fs *FsStats `json:"fs,omitempty"`
} }
const ( const (
@ -64,6 +67,9 @@ type PodStats struct {
Containers []ContainerStats `json:"containers" patchStrategy:"merge" patchMergeKey:"name"` Containers []ContainerStats `json:"containers" patchStrategy:"merge" patchMergeKey:"name"`
// Stats pertaining to network resources. // Stats pertaining to network resources.
Network *NetworkStats `json:"network,omitempty"` Network *NetworkStats `json:"network,omitempty"`
// Stats pertaining to volume usage of filesystem resources.
// VolumeStats.UsedBytes is the number of bytes used by the Volume
VolumeStats []VolumeStats `json:"volume,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
} }
// ContainerStats holds container-level unprocessed sample stats. // ContainerStats holds container-level unprocessed sample stats.
@ -74,6 +80,12 @@ type ContainerStats struct {
CPU *CPUStats `json:"cpu,omitempty"` CPU *CPUStats `json:"cpu,omitempty"`
// Stats pertaining to memory (RAM) resources. // Stats pertaining to memory (RAM) resources.
Memory *MemoryStats `json:"memory,omitempty"` Memory *MemoryStats `json:"memory,omitempty"`
// Stats pertaining to container rootfs usage of filesystem resources.
// Rootfs.UsedBytes is the number of bytes used for the container write layer.
Rootfs *FsStats `json:"rootfs,omitempty"`
// Stats pertaining to container logs usage of filesystem resources.
// Logs.UsedBytes is the number of bytes used for the container logs.
Logs *FsStats `json:"logs,omitempty"`
} }
// NonLocalObjectReference contains enough information to locate the referenced object. // NonLocalObjectReference contains enough information to locate the referenced object.
@ -115,3 +127,23 @@ type MemoryStats struct {
// Cumulative number of major page faults. // Cumulative number of major page faults.
MajorPageFaults *int64 `json:"majorPageFaults,omitempty"` MajorPageFaults *int64 `json:"majorPageFaults,omitempty"`
} }
// VolumeStats contains data about Volume filesystem usage.
type VolumeStats struct {
// Embedded FsStats
FsStats
// Name is the name given to the Volume
Name string `json:"name,omitempty"`
}
// FsStats contains data about filesystem usage.
type FsStats struct {
// AvailableBytes represents the storage space available (bytes) for the filesystem.
AvailableBytes *resource.Quantity `json:"availableBytes,omitempty"`
// CapacityBytes represents the total capacity (bytes) of the filesystems underlying storage.
CapacityBytes *resource.Quantity `json:"capacityBytes,omitempty"`
// UsedBytes represents the bytes used for a specific task on the filesystem.
// This may differ from the total bytes used on the filesystem and may not equal CapacityBytes - AvailableBytes.
// e.g. For ContainerStats.Rootfs this is the bytes used by the container rootfs on the filesystem.
UsedBytes *resource.Quantity `json:"usedBytes,omitempty"`
}