github.com/glancingmind/opentelemetry-collector-contrib/connector/routingconnector

Routing Connector

Status
Distributions	contrib
Issues
Code Owners	@jpkrohling, @mwear

Supported Pipeline Types

Exporter Pipeline Type	Receiver Pipeline Type	Stability Level
traces	traces	alpha
metrics	metrics	alpha
logs	logs	alpha

Routes logs, metrics or traces based on resource attributes to specific pipelines using OpenTelemetry Transformation Language (OTTL) statements as routing conditions.

Configuration

If you are not already familiar with connectors, you may find it helpful to first visit the Connectors README.

The following settings are available:

• table (required): the routing table for this connector.
• table.statement: the routing condition provided as the OTTL statement. Required if table.condition is not provided.
• table.condition: the routing condition provided as the OTTL condition. Required if table.statement is not provided.
• table.pipelines (required): the list of pipelines to use when the routing condition is met.
• default_pipelines (optional): contains the list of pipelines to use when a record does not meet any of specified conditions.
• error_mode (optional): determines how errors returned from OTTL statements are handled. Valid values are propagate, ignore and silent. If ignore or silent is used and a statement's condition has an error then the payload will be routed to the default pipelines. When silent is used the error is not logged. If not supplied, propagate is used.
• match_once (optional, default: false): determines whether the connector matches multiple statements or not. If enabled, the payload will be routed to the first pipeline in the table whose routing condition is met.

Example:

receivers:
    otlp:

exporters:
  jaeger:
    endpoint: localhost:14250
  jaeger/acme:
    endpoint: localhost:24250
  jaeger/ecorp:
    endpoint: localhost:34250

connectors:
  routing:
    default_pipelines: [traces/jaeger]
    error_mode: ignore
    match_once: false
    table:
      - statement: route() where attributes["X-Tenant"] == "acme"
        pipelines: [traces/jaeger-acme]
      - statement: delete_key(attributes, "X-Tenant") where IsMatch(attributes["X-Tenant"], ".*corp")
        pipelines: [traces/jaeger-ecorp]

  routing/match_once:
    default_pipelines: [traces/jaeger]
    error_mode: ignore
    match_once: true
    table:
      - statement: route() where attributes["X-Tenant"] == "acme"
        pipelines: [traces/jaeger-acme]
      - statement: route() where attributes["X-Tenant"] == ".*acme"
        pipelines: [traces/jaeger-ecorp]

service:
  pipelines:
    traces/in:
      receivers: [otlp]
      exporters: [routing]
    traces/jaeger:
      receivers: [routing]
      exporters: [jaeger]
    traces/jaeger-acme:
      receivers: [routing]
      exporters: [jaeger/acme]
    traces/jaeger-ecorp:
      receivers: [routing]
      exporters: [jaeger/ecorp]

A signal may get matched by routing conditions of more than one routing table entry. In this case, the signal will be routed to all pipelines of matching routes. Respectively, if none of the routing conditions met, then a signal is routed to default pipelines.

Differences between the Routing Connector and Routing Processor

• The connector will only route using OTTL statements which can only be applied to resource attributes. It does not support matching on context values at this time.
• The connector routes to pipelines, not exporters as the processor does.

Supported OTTL functions

• IsMatch
• delete_key
• delete_matching_keys

Additional Settings

The full list of settings exposed for this connector are documented here with detailed sample configuration files:

• logs
• metrics
• traces