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Merge pull request #19 from dsrhub/zz/add-datadog-apm
Add statsd and apm metrics
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| package main | ||
|
|
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| import ( | ||
| "github.com/caarlos0/env" | ||
| "github.com/ovh/utask/pkg/plugins" | ||
| ) | ||
|
|
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| var Plugin = NewDSRHubInitPlugin() // nolint | ||
|
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| type DSRHubInitPlugin struct { | ||
| // Environment variables | ||
| HTTPCallbackBaseURL string `env:"DSRHUB_HTTP_CALLBACK_BASE_URL" envDefault:"/dsrhub/callback"` | ||
| StatsdEnabled bool `env:"STATSD_ENABLED" envDefault:"false"` | ||
| StatsdHost string `env:"STATSD_HOST" envDefault:"127.0.0.1"` | ||
| StatsdPort string `env:"STATSD_PORT" envDefault:"8125"` | ||
| StatsdPrefix string `env:"STATSD_PREFIX" envDefault:"dsrhub."` | ||
| StatsdAPMEnabled bool `env:"STATSD_APM_ENABLED" envDefault:"false"` | ||
| StatsdAPMPort string `env:"STATSD_APM_PORT" envDefault:"8126"` | ||
| StatsdAPMServiceName string `env:"STATSD_APM_SERVICE_NAME" envDefault:"dsrhub"` | ||
|
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| // utask init plugin's Service entrypoint | ||
| service *plugins.Service | ||
| } | ||
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| func NewDSRHubInitPlugin() plugins.InitializerPlugin { | ||
| return &DSRHubInitPlugin{} | ||
| } | ||
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| func (p *DSRHubInitPlugin) Description() string { | ||
| return "DSRHubInitPlugin" | ||
| } | ||
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| func (p *DSRHubInitPlugin) Init(service *plugins.Service) error { | ||
| if err := env.Parse(p); err != nil { | ||
| return err | ||
| } | ||
|
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| p.service = service | ||
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| if err := p.setupHTTPCallback(); err != nil { | ||
| return err | ||
| } | ||
| if err := p.setupMetrics(); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| package main | ||
|
|
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| import ( | ||
| "context" | ||
| "fmt" | ||
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| "github.com/wI2L/fizz" | ||
| gintrace "gopkg.in/DataDog/dd-trace-go.v1/contrib/gin-gonic/gin" | ||
| "gopkg.in/DataDog/dd-trace-go.v1/ddtrace/tracer" | ||
| ) | ||
|
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| func (p *DSRHubInitPlugin) setupMetrics() error { | ||
| if !p.StatsdEnabled || !p.StatsdAPMEnabled { | ||
| return nil | ||
| } | ||
|
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| router, ok := p.service.Server.Handler(context.Background()).(*fizz.Fizz) | ||
| if !ok { | ||
| return fmt.Errorf("failed to load router in plugin: %s", p.Description()) | ||
| } | ||
|
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| tracer.Start( | ||
| tracer.WithAgentAddr(fmt.Sprintf("%s:%s", p.StatsdHost, p.StatsdAPMPort)), | ||
| tracer.WithServiceName(p.StatsdAPMServiceName), | ||
| ) | ||
|
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| ginEngine := router.Engine() | ||
| ginEngine.Use(gintrace.Middleware( | ||
| fmt.Sprintf("%s-http-server", p.StatsdAPMServiceName), | ||
| )) | ||
|
|
||
| return nil | ||
| } |
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