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Merge pull request #16 from tukaelu/support-service-metrics
Support service metrics
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| package subcommand | ||
|
|
||
| import ( | ||
| "github.com/mackerelio/mackerel-client-go" | ||
| "github.com/urfave/cli/v2" | ||
|
|
||
| "github.com/tukaelu/sabadashi/internal/converter" | ||
| "github.com/tukaelu/sabadashi/internal/validator" | ||
| ) | ||
|
|
||
| func NewServiceSubCommand() *cli.Command { | ||
| return &cli.Command{ | ||
| Name: "service", | ||
| Usage: "Retrieves service metrics", | ||
| Action: func(ctx *cli.Context) error { | ||
|
|
||
| from := converter.ToStartDayOfUnixtime(ctx.String("from")) | ||
| to := converter.ToEndDayOfUnixtime(ctx.String("to")) | ||
|
|
||
| if err := validator.ValidateTheDateBeforeAndAfter(from, to); err != nil { | ||
| return err | ||
| } | ||
| if err := validator.ValidateMetricRetantionPeriod(from, to); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| cmd := &serviceCommand{ | ||
| baseCommand: baseCommand{ | ||
| client: mackerel.NewClient(ctx.String("apikey")), | ||
| from: from, | ||
| to: to, | ||
| granularity: ctx.String("granularity"), | ||
| withFriendly: ctx.Bool("with-friendly-date-format"), | ||
| rawFrom: ctx.String("from"), | ||
| rawTo: ctx.String("to"), | ||
| }, | ||
| name: ctx.String("name"), | ||
| withExternal: ctx.Bool("with-external-monitors"), | ||
| } | ||
|
|
||
| return doService(ctx, cmd) | ||
| }, | ||
| Flags: []cli.Flag{ | ||
| &cli.StringFlag{ | ||
| Name: "name", | ||
| Aliases: []string{"n"}, | ||
| Usage: "Name of the service from which to retrieve metric", | ||
| Required: true, | ||
| }, | ||
| &cli.StringFlag{ | ||
| Name: "from", | ||
| Usage: "Specify the date to start retrieving metrics in YYYYMMDD format. (e.g. 20230101)", | ||
| Required: true, | ||
| Action: func(ctx *cli.Context, s string) error { | ||
| return validator.ValidateDateFormat(s) | ||
| }, | ||
| }, | ||
| &cli.StringFlag{ | ||
| Name: "to", | ||
| Usage: "Specify the date to end retrieving metrics in YYYYMMDD format. (e.g. 20231231)", | ||
| Required: true, | ||
| Action: func(ctx *cli.Context, s string) error { | ||
| return validator.ValidateDateFormat(s) | ||
| }, | ||
| }, | ||
| &cli.StringFlag{ | ||
| Name: "granularity", | ||
| Aliases: []string{"g"}, | ||
| Usage: "Specify the granularity of metric data. Choose from 1m, 5m, 10m, 1h, 2h, 4h or 1d.", | ||
| Value: "1m", | ||
| DefaultText: "1m", | ||
| Action: func(ctx *cli.Context, s string) error { | ||
| return validator.ValidateGranularity(s) | ||
| }, | ||
| }, | ||
| &cli.BoolFlag{ | ||
| Name: "with-friendly-date-format", | ||
| Aliases: []string{"f"}, | ||
| Usage: "If this flag is enabled, an additional column with a friendly date format is output at the beginning of the CSV line.", | ||
| }, | ||
| &cli.BoolFlag{ | ||
| Name: "with-external-monitors", | ||
| Aliases: []string{"e"}, | ||
| Usage: "If this flag is enabled, it also includes the metric measured in the external monitoring.", | ||
| }, | ||
| }, | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| package subcommand | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "os" | ||
| "sync" | ||
| "time" | ||
|
|
||
| "github.com/mackerelio/mackerel-client-go" | ||
| "github.com/schollz/progressbar/v3" | ||
| "github.com/urfave/cli/v2" | ||
|
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| "github.com/tukaelu/sabadashi/internal/converter" | ||
| "github.com/tukaelu/sabadashi/internal/definition" | ||
| "github.com/tukaelu/sabadashi/internal/exporter" | ||
| "github.com/tukaelu/sabadashi/internal/fileutil" | ||
| "github.com/tukaelu/sabadashi/internal/retriever" | ||
| ) | ||
|
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| type hostCommand struct { | ||
| baseCommand | ||
| host string | ||
| } | ||
|
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| func doHost(ctx *cli.Context, h *hostCommand) error { | ||
|
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| exportDir, err := fileutil.CreateExportDir(h.host, h.rawFrom, h.rawTo) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| interval := converter.GranularityToInterval(h.granularity) | ||
| attempts := (h.to-h.from)/interval + 1 | ||
|
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| metricNames, err := h.client.ListHostMetricNames(h.host) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| progress := progressbar.Default(attempts * int64(len(metricNames))) | ||
|
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| ch := make(chan exporter.Result, definition.CONCURRENT_FILE_OPERATION) | ||
| defer close(ch) | ||
|
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| go func(ch chan exporter.Result) { | ||
| for { | ||
| select { | ||
| case res := <-ch: | ||
| if err := fileutil.WriteFile(exportDir, res.MetricName, "csv", res.Records, h.withFriendly); err != nil { | ||
| fmt.Printf("Failed to write CSV file. (reason: %s)\n", err) | ||
| return | ||
| } | ||
| case <-ctx.Done(): | ||
| fmt.Println("Operation canceled.") | ||
| os.Exit(125) | ||
| } | ||
| } | ||
| }(ch) | ||
|
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| from := h.from | ||
| to := int64(0) | ||
| wg := &sync.WaitGroup{} | ||
| for i := int64(0); i < attempts; i++ { | ||
| to = from + interval | ||
| if to > h.to { | ||
| to = h.to | ||
| } | ||
|
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| for _, metricName := range metricNames { | ||
| wg.Add(1) | ||
| go func(ctx *context.Context, metricName string) { | ||
| defer wg.Done() | ||
|
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| metrics, err := retriever.Retrieve(ctx, metricName, func() ([]mackerel.MetricValue, error) { | ||
| metricValues, err := h.client.FetchHostMetricValues(h.host, metricName, from, to) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("[ERROR] failed to retrieve metrics (metric: %s, from: %d, to: %d) (reason: %s)", metricName, from, to, err) | ||
| } | ||
| return metricValues, nil | ||
| }) | ||
|
|
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| if err != nil { | ||
| // skip retrieve metrics... | ||
| fmt.Sprintln(err) | ||
| } | ||
|
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| ch <- exporter.Result{ | ||
| MetricName: metricName, | ||
| Records: metrics, | ||
| } | ||
| }(&ctx.Context, metricName) | ||
|
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| time.Sleep(350 * time.Millisecond) | ||
|
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| _ = progress.Add(1) | ||
| } | ||
| wg.Wait() | ||
|
|
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| from += interval | ||
| _ = progress.Add(1) | ||
| } | ||
|
|
||
| return nil | ||
| } |
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