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metrics.go
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metrics.go
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// Copyright Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package metrics
import (
"istio.io/istio/pkg/monitoring"
)
const (
Cancel = "cancelled"
Error = "error"
)
var (
disconnectionTypeTag = monitoring.CreateLabel("type")
// IstiodConnectionFailures records total number of connection failures to Istiod.
IstiodConnectionFailures = monitoring.NewSum(
"istiod_connection_failures",
"The total number of connection failures to Istiod",
)
// istiodDisconnections records total number of unexpected disconnections by Istiod.
istiodDisconnections = monitoring.NewSum(
"istiod_connection_terminations",
"The total number of connection errors to Istiod",
)
// envoyDisconnections records total number of unexpected disconnections by Envoy.
envoyDisconnections = monitoring.NewSum(
"envoy_connection_terminations",
"The total number of connection errors from envoy",
)
// TODO: Add type url as type for requeasts and responses if needed.
// XdsProxyRequests records total number of downstream requests.
XdsProxyRequests = monitoring.NewSum(
"xds_proxy_requests",
"The total number of Xds Proxy Requests",
)
// XdsProxyResponses records total number of upstream responses.
XdsProxyResponses = monitoring.NewSum(
"xds_proxy_responses",
"The total number of Xds Proxy Responses",
)
IstiodConnectionCancellations = istiodDisconnections.With(disconnectionTypeTag.Value(Cancel))
IstiodConnectionErrors = istiodDisconnections.With(disconnectionTypeTag.Value(Error))
EnvoyConnectionCancellations = envoyDisconnections.With(disconnectionTypeTag.Value(Cancel))
EnvoyConnectionErrors = envoyDisconnections.With(disconnectionTypeTag.Value(Error))
)