profiling.go

Documentation: golang.conradwood.net/go-easyops/server

     1  package server
     2  
     3  import (
     4  	"flag"
     5  	"fmt"
     6  
     7  	"github.com/grafana/pyroscope-go"
     8  	"golang.conradwood.net/go-easyops/appinfo"
     9  )
    10  
    11  const (
    12  	pyroscope_port = 3900
    13  )
    14  
    15  var (
    16  	debug_pyroscope = flag.Bool("ge_debug_pyroscope", false, "if true print pyroscope messages stuff")
    17  	start_pyroscope = flag.Bool("ge_start_pyroscope", false, "use ge-pyroscope:3900 to record hotspots")
    18  	pyroscope_host  = flag.String("ge_pyroscope_host", "ge-pyroscope", "use `hostname`:3900 to record hotspots")
    19  )
    20  
    21  func start_profiling(sd *serverDef) {
    22  	if *start_pyroscope {
    23  		pyro_url := fmt.Sprintf("http://%s:%d", *pyroscope_host, pyroscope_port)
    24  		pyroscope.Start(pyroscope.Config{
    25  			ApplicationName: sd.name,
    26  			ServerAddress:   pyro_url,
    27  			Logger:          &pyroLogger{},
    28  			//			Logger:          pyroscope.StandardLogger,
    29  			Tags: map[string]string{
    30  				"service_user_id": fmt.Sprintf("%s", sd.service_user_id),
    31  				"artefactid":      fmt.Sprintf("%d", appinfo.AppInfo().ArtefactID),
    32  				"version":         fmt.Sprintf("%d", appinfo.AppInfo().Number),
    33  			},
    34  		})
    35  		fmt.Printf("[go-easyops] pyroscope started, connecting to host %s\n", pyro_url)
    36  	}
    37  }
    38  
    39  type pyroLogger struct {
    40  }
    41  
    42  func (*pyroLogger) Infof(a string, b ...interface{}) {
    43  	if !*debug_pyroscope {
    44  		return
    45  	}
    46  	fmt.Printf("[PYROSCOPE-INFO]  "+a+"\n", b...) //nolint:forbidigo
    47  }
    48  func (*pyroLogger) Debugf(a string, b ...interface{}) {
    49  	if !*debug_pyroscope {
    50  		return
    51  	}
    52  	fmt.Printf("[PYROSCOPE-DEBUG] "+a+"\n", b...) //nolint:forbidigo
    53  }
    54  func (*pyroLogger) Errorf(a string, b ...interface{}) {
    55  	if !*debug_pyroscope {
    56  		return
    57  	}
    58  	fmt.Printf("[PYROSCOPE-ERROR] "+a+"\n", b...) //nolint:forbidigo
    59  }
    60
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