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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| /* | ||
| Copyright 2023 Lawrence Livermore National Security, LLC | ||
| (c.f. AUTHORS, NOTICE.LLNS, COPYING) | ||
| SPDX-License-Identifier: MIT | ||
| */ | ||
|
|
||
| package io | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strconv" | ||
|
|
||
| api "github.com/converged-computing/metrics-operator/api/v1alpha1" | ||
| "k8s.io/apimachinery/pkg/util/intstr" | ||
|
|
||
| "github.com/converged-computing/metrics-operator/pkg/metadata" | ||
| metrics "github.com/converged-computing/metrics-operator/pkg/metrics" | ||
| "github.com/converged-computing/metrics-operator/pkg/specs" | ||
| ) | ||
|
|
||
| // sysstat provides a tool "iostat" to assess a storage mount | ||
| // https://github.com/sysstat/sysstat | ||
|
|
||
| type IOStat struct { | ||
| metrics.StorageGeneric | ||
| humanReadable bool | ||
| rate int32 | ||
| completions int32 | ||
|
|
||
| // pre and post commands | ||
| pre string | ||
| post string | ||
| } | ||
|
|
||
| func (m IOStat) Url() string { | ||
| return "https://github.com/sysstat/sysstat" | ||
| } | ||
|
|
||
| // Set custom options / attributes for the metric | ||
| func (m *IOStat) SetOptions(metric *api.Metric) { | ||
| m.rate = 10 | ||
| m.completions = 0 // infinite | ||
| m.ResourceSpec = &metric.Resources | ||
| m.AttributeSpec = &metric.Attributes | ||
|
|
||
| // Does the person want human readable instead of table? | ||
| value, ok := metric.Options["human"] | ||
| if ok { | ||
| if value.StrVal == "true" { | ||
| m.humanReadable = true | ||
| } | ||
| } | ||
| v, ok := metric.Options["pre"] | ||
| if ok { | ||
| m.pre = v.StrVal | ||
| } | ||
| v, ok = metric.Options["post"] | ||
| if ok { | ||
| m.post = v.StrVal | ||
| } | ||
|
|
||
| rate, ok := metric.Options["rate"] | ||
| if ok { | ||
| m.rate = rate.IntVal | ||
| } | ||
| completions, ok := metric.Options["completions"] | ||
| if ok { | ||
| m.completions = completions.IntVal | ||
| } | ||
|
|
||
| } | ||
|
|
||
| func (m IOStat) PrepareContainers( | ||
| spec *api.MetricSet, | ||
| metric *metrics.Metric, | ||
| ) []*specs.ContainerSpec { | ||
|
|
||
| // Metadata to add to beginning of run | ||
| meta := metrics.Metadata(spec, metric) | ||
| command := "iostat -dxm -o JSON" | ||
| if m.humanReadable { | ||
| command = "iostat -dxm" | ||
| } | ||
|
|
||
| preBlock := `#!/bin/bash | ||
| # Custom pre comamand logic | ||
| %s | ||
| i=0 | ||
| echo "%s" | ||
| completions=%d | ||
| echo "%s" | ||
| while true | ||
| do | ||
| echo "%s" | ||
| %s | ||
| # Note we can do iostat -o JSON | ||
| if [[ $completions -ne 0 ]] && [[ $i -eq $completions ]]; then | ||
| echo "%s" | ||
| %s | ||
| exit 0 | ||
| fi | ||
| sleep %d | ||
| let i=i+1 | ||
| done | ||
| ` | ||
|
|
||
| postBlock := ` | ||
| %s | ||
| %s | ||
| ` | ||
| interactive := metadata.Interactive(spec.Spec.Logging.Interactive) | ||
| preBlock = fmt.Sprintf( | ||
| preBlock, | ||
| m.pre, | ||
| meta, | ||
| m.completions, | ||
| metadata.CollectionStart, | ||
| metadata.Separator, | ||
| command, | ||
| metadata.CollectionEnd, | ||
| metadata.CollectionEnd, | ||
| m.rate, | ||
| ) | ||
|
|
||
| postBlock = fmt.Sprintf(postBlock, m.post, interactive) | ||
| return m.StorageContainerSpec(preBlock, "", postBlock) | ||
| } | ||
|
|
||
| // Exported options and list options | ||
| func (m IOStat) Options() map[string]intstr.IntOrString { | ||
| return map[string]intstr.IntOrString{ | ||
| "rate": intstr.FromInt(int(m.rate)), | ||
| "completions": intstr.FromInt(int(m.completions)), | ||
| "human": intstr.FromString(strconv.FormatBool(m.humanReadable)), | ||
| } | ||
| } | ||
|
|
||
| func init() { | ||
| base := metrics.BaseMetric{ | ||
| Identifier: "io-sysstat", | ||
| Summary: "statistics for Linux tasks (processes) : I/O, CPU, memory, etc.", | ||
| Container: "ghcr.io/converged-computing/metric-sysstat:latest", | ||
| } | ||
| storage := metrics.StorageGeneric{BaseMetric: base} | ||
| iostat := IOStat{StorageGeneric: storage} | ||
| metrics.Register(&iostat) | ||
| } |