o11yutils

func MustOtelResource ¶

func MustOtelResource(ctx context.Context, serviceName string) *resource.Resource

MustOtelResource is OtelResource for callers that have nowhere to put an error. Prefer OtelResource: everything in this repo that builds a resource is a constructor with an error in its signature.

func OtelResource ¶

func OtelResource(ctx context.Context, serviceName string) (*resource.Resource, error)

OtelResource assembles the OpenTelemetry resource describing this process.

Every caller is a constructor that already returns an error, which is why this returns one too: resource detection reads the environment and the host, and a detector that fails is a misconfiguration the caller can report like any other, not grounds for taking the process down from inside a constructor.