1// Copyright 2020 Istio Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package common
16
17import (
18	"istio.io/pkg/monitoring"
19)
20
21type EchoMetrics struct {
22	HTTPRequests monitoring.Metric
23	GrpcRequests monitoring.Metric
24	TCPRequests  monitoring.Metric
25}
26
27var (
28	PortLabel = monitoring.MustCreateLabel("port")
29	Metrics   = &EchoMetrics{
30		HTTPRequests: monitoring.NewSum(
31			"istio_echo_http_requests_total",
32			"The number of http requests total",
33		),
34		GrpcRequests: monitoring.NewSum(
35			"istio_echo_grpc_requests_total",
36			"The number of grpc requests total",
37		),
38		TCPRequests: monitoring.NewSum(
39			"istio_echo_tcp_requests_total",
40			"The number of tcp requests total",
41		),
42	}
43)
44
45func init() {
46	monitoring.MustRegister(Metrics.HTTPRequests, Metrics.GrpcRequests, Metrics.TCPRequests)
47}
48