Allow to export metrics list to a file #214

Merged
fyrchik merged 1 commit from fyrchik/frostfs-node:metrics-refactor into master 2023-07-26 21:07:57 +00:00

View file

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package main
import (
"encoding/json"
"flag"
"fmt"
"io/ioutil"
"os"
"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/metrics"
)
var (
node = flag.String("node", "", "File to export storage node metrics to.")
ir = flag.String("ir", "", "File to export innerring node metrics to.")
)
func main() {
flag.Parse()
if *node != "" && *ir != "" {
fmt.Println("-node and -ir flags are mutually exclusive")
os.Exit(1)
}
var filename string
switch {
case *node != "":
_ = metrics.NewNodeMetrics()
filename = *node
case *ir != "":
_ = metrics.NewInnerRingMetrics()
filename = *ir
default:
flag.Usage()
os.Exit(1)
}
ds, err := metrics.DescribeAll()
if err != nil {
fmt.Fprintf(os.Stderr, "Could not parse metric descriptions: %v\n", err)
os.Exit(1)
}
data, err := json.Marshal(ds)
if err != nil {
fmt.Fprintf(os.Stderr, "Could not parse marshal: %v\n", err)
os.Exit(1)
}
if err := ioutil.WriteFile(filename, data, 0644); err != nil {
fmt.Fprintf(os.Stderr, "Could write to file: %v\n", err)
os.Exit(1)
}
}