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feat: Expose firecracker metrics #357
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,17 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "os" | ||
|
|
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| "github.com/sirupsen/logrus" | ||
|
|
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| "github.com/weaveworks/flintlock/internal/command/metrics" | ||
| ) | ||
|
|
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| func main() { | ||
| app := metrics.NewApp(os.Stdout) | ||
|
|
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| if err := app.Run(os.Args); err != nil { | ||
| logrus.Error(err) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| version: "3.9" | ||
| services: | ||
| prom: | ||
| image: prom/prometheus | ||
| ports: | ||
| - 9090 | ||
| volumes: | ||
| - ./prometheus.yml:/etc/prometheus/prometheus.yml | ||
| grafana: | ||
| image: grafana/grafana:8.3.3 | ||
| ports: | ||
| - 3000:3000 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,14 @@ | ||
| global: | ||
| scrape_interval: 15s | ||
| evaluation_interval: 30s | ||
|
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| scrape_configs: | ||
| - job_name: 'prometheus' | ||
| static_configs: | ||
| - targets: ['127.0.0.1:9090'] | ||
|
|
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| - job_name: flintlock | ||
| scrape_interval: 5s | ||
| metrics_path: '/machine' | ||
| static_configs: | ||
| - targets: ['192.168.100.35:8090'] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| package firecracker | ||
|
|
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| import ( | ||
| "fmt" | ||
| "strings" | ||
| ) | ||
|
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| type MachineMetrics struct { | ||
| Namespace string `json:"Namespace"` | ||
| MachineName string `json:"MachineName"` | ||
| MachineUID string `json:"MachineUID"` | ||
| Data Metrics `json:"Data"` | ||
| } | ||
|
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| type Metrics map[string]map[string]int64 | ||
|
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| func (mm MachineMetrics) ToPrometheus() []byte { | ||
| output := []string{} | ||
| labels := strings.Join( | ||
| []string{ | ||
| metricsLabel("namespace", mm.Namespace), | ||
| metricsLabel("name", mm.MachineName), | ||
| metricsLabel("uid", mm.MachineUID), | ||
| }, | ||
| ",", | ||
| ) | ||
|
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| for prefix, group := range mm.Data { | ||
| for key, value := range group { | ||
| output = append(output, fmt.Sprintf("%s_%s{%s} %d", prefix, key, labels, value)) | ||
| } | ||
| } | ||
|
|
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| return []byte(strings.Join(output, "\n")) | ||
| } | ||
|
|
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| func metricsLabel(key, value string) string { | ||
| return fmt.Sprintf("%s=\"%s\"", key, value) | ||
| } |
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Duplicated entry, removed one of them.