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* feat: metrics for missing metadata keys * fix: typo * feat: add counter metric for failed resource creation * feat: add counter metric for failed relation creation * feat: add /metrics endpoint to port a separate port
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| package telemetry | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "contrib.go.opencensus.io/exporter/prometheus" | ||
| "go.opencensus.io/stats" | ||
| "go.opencensus.io/stats/view" | ||
| "go.opencensus.io/tag" | ||
| ) | ||
|
|
||
| var ( | ||
| // The number of new metadata keys | ||
| MMissingMetadataKeys = stats.Int64("metadata-keys/counter", "The number of missing metadata keys", "1") | ||
| MResourceFailedToCreate = stats.Int64("resource-failed-to-create/counter", "The number of resources failed to be created", "1") | ||
| MRelationFailedToCreate = stats.Int64("relation-failed-to-create/counter", "The number of relations failed to be created", "1") | ||
| ) | ||
|
|
||
| var ( | ||
| KeyMethod, _ = tag.NewKey("method") | ||
| KeyMissingKey, _ = tag.NewKey("missing-key") | ||
| KeyRequestDetails, _ = tag.NewKey("request-details") | ||
| KeyRelationDetails, _ = tag.NewKey("relation-details") | ||
| ) | ||
|
|
||
| var ( | ||
| MissingMetadataKeysView = &view.View{ | ||
| Name: "metadata-keys/counter", | ||
| Measure: MMissingMetadataKeys, | ||
| Description: "The number of missing metadata keys", | ||
|
|
||
| Aggregation: view.Count(), | ||
| TagKeys: []tag.Key{KeyMethod, KeyMissingKey}} | ||
|
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| ResourceFailedToCreateView = &view.View{ | ||
| Name: "resource-failed-to-create/counter", | ||
| Measure: MResourceFailedToCreate, | ||
| Description: "The number of resources failed to be created", | ||
|
|
||
| Aggregation: view.Count(), | ||
| TagKeys: []tag.Key{KeyMethod, KeyRequestDetails}} | ||
|
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| RelationFailedToCreateView = &view.View{ | ||
| Name: "relation-failed-to-create/counter", | ||
| Measure: MRelationFailedToCreate, | ||
| Description: "The number of relations failed to be created", | ||
|
|
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| Aggregation: view.Count(), | ||
| TagKeys: []tag.Key{KeyMethod, KeyRelationDetails}} | ||
| ) | ||
|
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| func SetupOpenCensus(ctx context.Context, cfg Config) (*prometheus.Exporter, error) { | ||
| if err := setupViews(); err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| pe, err := prometheus.NewExporter(prometheus.Options{ | ||
| Namespace: cfg.ServiceName, | ||
| }) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| view.RegisterExporter(pe) | ||
| return pe, nil | ||
| } | ||
|
|
||
| func setupViews() error { | ||
| err := view.Register(MissingMetadataKeysView, ResourceFailedToCreateView, RelationFailedToCreateView) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| package telemetry | ||
|
|
||
| type Config struct { | ||
| // OpenCensus exporter configurations. | ||
| ServiceName string `yaml:"service_name" mapstructure:"service_name"` | ||
| } |