otelcol.processor.attributes

otelcol.processor.attributes "LABEL" {
  output {
    metrics = [...]
    logs    = [...]
    traces  = [...]
  }
}

otelcol.receiver.otlp "default" {
  http {}
  grpc {}

  output {
    metrics = [otelcol.processor.attributes.default.input]
    logs    = [otelcol.processor.attributes.default.input]
    traces  = [otelcol.processor.attributes.default.input]
  }
}

otelcol.processor.attributes "default" {
    // Inserts a new attribute "attribute1" to spans where
    // the key "attribute1" doesn't exist.
    // The type of `attribute1` is inferred by the configuration.
    // `123` is an integer and is stored as an integer in the attributes.
    action {
        key = "attribute1"
        value = 123
        action = "insert"
    }

    // Inserts a new attribute with a key of "string key" and
    // a string value of "anotherkey".
    action {
        key = "string key"
        value = "anotherkey"
        action = "insert"
    }

    // Setting an attribute on all spans.
    // Any spans that already had `region` now have value `planet-earth`.
    // This can be done to set properties for all traces without
    // requiring an instrumentation change.
    action {
        key = "region"
        value = "planet-earth"
        action = "upsert"
    }

    // The following demonstrates copying a value to a new key.
    // If a span doesn't contain `user_key`, no new attribute `new_user_key` is created.
    action {
        key = "new_user_key"
        from_attribute = "user_key"
        action = "upsert"
    }

    // Hashing existing attribute values.
    action {
        key = "user.email"
        action = "hash"
    }

    // Uses the value from key `example_user_key` to upsert attributes
    // to the target keys specified in the `pattern`.
    // (Insert attributes for target keys that do not exist and update keys that exist.)
    // Given example_user_key = /api/v1/document/12345678/update/v1
    // then the following attributes will be inserted:
    // new_example_user_key: 12345678
    // version: v1
    //
    // Note: Similar to the Span Processor, if a target key already exists,
    // it will be updated.
    //
    // Note: The regex pattern is enclosed in backticks instead of quotation marks.
    // This constitutes a raw Alloy syntax string, and lets us avoid the need to escape backslash characters.
    action {
        key = "example_user_key"
        pattern = `\/api\/v1\/document\/(?P<new_user_key>.*)\/update\/(?P<version>.*)$`
        action = "extract"
    }

    // Converting the type of an existing attribute value.
    action {
        key = "http.status_code"
        converted_type = "int"
        action = "convert"
    }

    // Deleting keys from an attribute.
    action {
        key = "credit_card"
        action = "delete"
    }

    output {
        metrics = [otelcol.exporter.otlp.default.input]
        logs    = [otelcol.exporter.otlp.default.input]
        traces  = [otelcol.exporter.otlp.default.input]
    }
}

otelcol.exporter.otlp "default" {
  client {
    endpoint = env("OTLP_ENDPOINT")
  }
}

otelcol.processor.attributes "default" {
    exclude {
        match_type = "strict"
        services = ["svcA", "svcB"]
        attribute {
            key = "env"
            value = "dev"
        }
        attribute {
            key = "test_request"
        }
    }
    action {
        key = "credit_card"
        action = "delete"
    }
    action {
        key = "duplicate_key"
        action = "delete"
    }
    output {
        traces  = [otelcol.exporter.otlp.default.input]
    }
}

otelcol.processor.attributes "default" {
    exclude {
        match_type = "strict"
        resource {
            key = "host.type"
            value = "n1-standard-1"
        }
    }
    action {
        key = "credit_card"
        action = "delete"
    }
    action {
        key = "duplicate_key"
        action = "delete"
    }
    output {
        logs    = [otelcol.exporter.otlp.default.input]
        traces  = [otelcol.exporter.otlp.default.input]
    }
}

otelcol.processor.attributes "default" {
    exclude {
        match_type = "strict"
        library {
            name = "mongo-java-driver"
            version = "3.8.0"
        }
    }
    action {
        key = "credit_card"
        action = "delete"
    }
    action {
        key = "duplicate_key"
        action = "delete"
    }
    output {
        logs    = [otelcol.exporter.otlp.default.input]
        traces  = [otelcol.exporter.otlp.default.input]
    }
}

otelcol.processor.attributes "default" {
    // Specifies the span properties that must exist for the processor to be applied.
    include {
        // "match_type" defines that "services" is an array of regexp-es.
        match_type = "regexp"
        // The span service name must match "auth.*" pattern.
        services = ["auth.*"]
    }

    exclude {
        // "match_type" defines that "span_names" is an array of regexp-es.
        match_type = "regexp"
        // The span name must not match "login.*" pattern.
        span_names = ["login.*"]
    }

    action {
        key = "password"
        action = "update"
        value = "obfuscated"
    }

    action {
        key = "token"
        action = "delete"
    }

    output {
        traces  = [otelcol.exporter.otlp.default.input]
    }
}

otelcol.processor.attributes "default" {
    include {
        // "match_type" of "regexp" defines that the "value" attributes 
        // in the "attribute" blocks are regexp-es.
        match_type = "regexp"

        // This attribute ('db.statement') must exist in the span and match 
        // the regex ('SELECT \* FROM USERS.*') for a match.
        attribute {
            key = "db.statement"
            value = "SELECT \* FROM USERS.*"
        }
    }

    action {
        key = "db.statement"
        action = "update"
        value = "SELECT * FROM USERS [obfuscated]"
    }

    output {
        metrics = [otelcol.exporter.otlp.default.input]
        logs    = [otelcol.exporter.otlp.default.input]
        traces  = [otelcol.exporter.otlp.default.input]
    }
}

otelcol.processor.attributes "default" {
    include {
        match_type = "regexp"
        log_bodies = ["AUTH.*"]
    }
    action {
        key = "password"
        action = "update"
        value = "obfuscated"
    }
    action {
        key = "token"
        action = "delete"
    }

    output {
        logs    = [otelcol.exporter.otlp.default.input]
    }
}

otelcol.processor.attributes "default" {
    include {
        match_type = "regexp"
		log_severity {
			min = "INFO"
			match_undefined = true
		}
    }
    action {
        key = "password"
        action = "update"
        value = "obfuscated"
    }
    action {
        key = "token"
        action = "delete"
    }

    output {
        logs    = [otelcol.exporter.otlp.default.input]
    }
}

otelcol.processor.attributes "default" {
    include {
        match_type = "regexp"
        log_severity_texts = ["info.*"]
    }
    action {
        key = "password"
        action = "update"
        value = "obfuscated"
    }
    action {
        key = "token"
        action = "delete"
    }

    output {
        logs    = [otelcol.exporter.otlp.default.input]
    }
}

otelcol.processor.attributes "default" {
	include {
		match_type = "regexp"
		metric_names = ["counter.*"]
	}
	action {
		key = "important_label"
		action = "upsert"
		value = "label_val"
	}

    output {
        metrics = [otelcol.exporter.otlp.default.input]
    }
}