Frontend Proxy (Envoy)
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The frontend proxy is used as a reverse proxy for user-facing web interfaces such as the frontend, Jaeger, Grafana, load generator, and feature flag service.
Frontend proxy configuration source
Enabling OpenTelemetry
NOTE: Only non-synthetic requests will trigger the envoy tracing.
In order to enable Envoy to produce spans whenever receiving a request, the following configuration is required:
static_resources: listeners: - address: socket_address: address: 0.0.0.0 port_value: ${ENVOY_PORT} filter_chains: - filters: - name: envoy.filters.network.http_connection_manager typed_config: '@type': type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager codec_type: AUTO stat_prefix: ingress_http tracing: provider: name: envoy.tracers.opentelemetry typed_config: '@type': type.googleapis.com/envoy.config.trace.v3.OpenTelemetryConfig grpc_service: envoy_grpc: cluster_name: opentelemetry_collector timeout: 0.250s service_name: frontend-proxy clusters: - name: opentelemetry_collector type: STRICT_DNS lb_policy: ROUND_ROBIN typed_extension_protocol_options: envoy.extensions.upstreams.http.v3.HttpProtocolOptions: '@type': type.googleapis.com/envoy.extensions.upstreams.http.v3.HttpProtocolOptions explicit_http_config: http2_protocol_options: {} load_assignment: cluster_name: opentelemetry_collector endpoints: - lb_endpoints: - endpoint: address: socket_address: address: ${OTEL_COLLECTOR_HOST} port_value: ${OTEL_COLLECTOR_PORT} Where OTEL_COLLECTOR_HOST and OTEL_COLLECTOR_PORT are passed via environment variables.
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