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eed518c3e1
Co-authored-by: EisenbergD <dominik.eisenberg@beiersdorf.com> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Signed-off-by: EisenbergD <dominik.eisenberg@beiersdorf.com>
36 lines
2.1 KiB
Jsonnet
36 lines
2.1 KiB
Jsonnet
// PromQL building blocks shared by the Hyper-V tabs. Selectors are label
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// matchers without braces; every function returns a PromQL string.
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{
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// Right-hand side of a join that adds vm and path to series of
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// windows_hyperv_virtual_storage_device_*. The virtual_hard_disk metrics carry
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// the counter instance name of each running disk in device. Several disks can
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// share one device (a VHD-format checkpoint uses the name of its base disk), so
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// one is kept per device. Turned into 1, so the join keeps the left values.
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vhdVm(selector):
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'(0 * topk by (instance, device) (1, max by (instance, device, vm, path) (windows_hyperv_virtual_hard_disk_size_bytes{%s, device!=""})) + 1)' % selector,
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// expr, a series of windows_hyperv_virtual_storage_device_*, with the vm and
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// path of its disk. Disks of other VMs drop out when vmSelector selects a VM.
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withVm(expr, vmSelector):
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'%s * on (instance, device) group_left (vm, path) %s' % [expr, self.vhdVm(vmSelector)],
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// Per-second rate of a windows_hyperv_virtual_storage_device_* counter.
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deviceRate(metric, selector):
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'rate(windows_hyperv_virtual_storage_device_%s{%s}[$__rate_interval])' % [metric, selector],
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// numerator per unit of denominator; idle devices drop out instead of
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// dividing by zero. Latency per I/O is
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// latency(rate(io_latency_seconds_total), rate(throughput_total)).
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latency(numerator, denominator): '%s / (%s > 0)' % [numerator, denominator],
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// Adds disk, the file name at the end of path, for legends and tables.
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diskName(expr):
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'label_replace(%s, "disk", "$1", "path", ".*[\\\\\\\\/]([^\\\\\\\\/]+)$")' % expr,
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// Hyper-V names the vNIC of a VM <vm>_<adapter>_<vm_id>--<adapter GUID>. Adds
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// vm_id from the name and vm from windows_hyperv_vm_processors, so vNICs
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// match their VM by GUID and not by a name prefix.
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vnicVm(expr, vmSelector):
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'label_replace(%s, "vm_id", "$1", "adapter", ".*_([0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12})--.*") * on (instance, vm_id) group_left (vm) (0 * max by (instance, vm_id, vm) (windows_hyperv_vm_processors{%s}) + 1)' % [expr, vmSelector],
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}
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