OpenTelemetry tracing

Talos supports distributed tracing via OpenTelemetry.

Configuration

tracing:
  enabled: true
  service_name: "talos"
  exporter: "otlp"
  endpoint: "otel-collector:4317"
  sample_rate: 0.01

Exporters

Exporter	Description
otlp	OpenTelemetry Protocol (recommended)
jaeger	Jaeger native format
stdout	Print traces to stderr (debugging)

Environment variables

export TALOS_TRACING_ENABLED=true
export TALOS_TRACING_EXPORTER=otlp
export TALOS_TRACING_ENDPOINT=otel-collector:4317
export TALOS_TRACING_SAMPLE_RATE=0.01

Traced operations

Talos traces database queries, HMAC operations, cache lookups, key verification paths, and HTTP request handling. Each trace includes the Network ID (for multi-tenant deployments) and relevant key identifiers.