istio

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// Copyright Istio Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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//     http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package metrics
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import (
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	"time"
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	"istio.io/istio/pkg/log"
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	"istio.io/istio/pkg/monitoring"
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)
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var (
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	typeTag = monitoring.CreateLabel("type")
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	// StartupTime measures the time it takes for the agent to get ready Note: This
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	// is dependent on readiness probes. This means our granularity is correlated to
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	// the probing interval.
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	startupTime = monitoring.NewGauge(
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		"startup_duration_seconds",
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		"The time from the process starting to being marked ready.",
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	)
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	// scrapeErrors records total number of failed scrapes.
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	scrapeErrors = monitoring.NewSum(
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		"scrape_failures_total",
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		"The total number of failed scrapes.",
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	)
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	EnvoyScrapeErrors = scrapeErrors.With(typeTag.Value(ScrapeTypeEnvoy))
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	AppScrapeErrors   = scrapeErrors.With(typeTag.Value(ScrapeTypeApp))
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	AgentScrapeErrors = scrapeErrors.With(typeTag.Value(ScrapeTypeAgent))
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	// ScrapeTotals records total number of scrapes.
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	ScrapeTotals = monitoring.NewSum(
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		"scrapes_total",
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		"The total number of scrapes.",
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	)
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)
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var (
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	ScrapeTypeEnvoy = "envoy"
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	ScrapeTypeApp   = "application"
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	ScrapeTypeAgent = "agent"
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)
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var processStartTime = time.Now()
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func RecordStartupTime() {
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	delta := time.Since(processStartTime)
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	startupTime.Record(delta.Seconds())
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	log.Infof("Readiness succeeded in %v", delta)
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}
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