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metrics_service.proto
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syntax = "proto3";
// [#proto-status: draft]
package envoy.api.v2;
import "api/base.proto";
import "google/api/annotations.proto";
import "metrics.proto";
// Service for streaming metrics to server that consumes the metrics data. It uses Prometheus metric
// data model as a standard to represent metrics information.
service MetricsService {
// Envoy will connect and send StreamMetricsMessage messages forever. It does not expect any
// response to be sent as nothing would be done in the case of failure.
rpc StreamMetrics(stream StreamMetricsMessage) returns (StreamMetricsResponse) {
}
}
message StreamMetricsResponse {
}
message StreamMetricsMessage {
message Identifier {
// The node sending the access log messages over the stream.
Node node = 1;
}
// Identifier data effectively is a structured metadata.
// As a performance optimization this will only be sent in the first message on the stream.
Identifier identifier = 1;
// A list of metric entries
repeated io.prometheus.client.MetricFamily envoy_metrics = 2;
}
// Configuration structure.
message MetricsServiceConfig {
// The name of the upstream cluster that hosts the metrics service. The cluster must be
// configured in the cluster manager.
string cluster_name = 1;
}