| // 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 ( |
| "time" |
| ) |
| |
| import ( |
| "istio.io/pkg/log" |
| "istio.io/pkg/monitoring" |
| ) |
| |
| var ( |
| typeTag = monitoring.MustCreateLabel("type") |
| |
| // StartupTime measures the time it takes for the agent to get ready Note: This |
| // is dependant on readiness probes. This means our granularity is correlated to |
| // the probing interval. |
| startupTime = monitoring.NewGauge( |
| "startup_duration_seconds", |
| "The time from the process starting to being marked ready.", |
| ) |
| |
| // scrapeErrors records total number of failed scrapes. |
| scrapeErrors = monitoring.NewSum( |
| "scrape_failures_total", |
| "The total number of failed scrapes.", |
| monitoring.WithLabels(typeTag), |
| ) |
| EnvoyScrapeErrors = scrapeErrors.With(typeTag.Value(ScrapeTypeEnvoy)) |
| AppScrapeErrors = scrapeErrors.With(typeTag.Value(ScrapeTypeApp)) |
| AgentScrapeErrors = scrapeErrors.With(typeTag.Value(ScrapeTypeAgent)) |
| |
| // ScrapeTotals records total number of scrapes. |
| ScrapeTotals = monitoring.NewSum( |
| "scrapes_total", |
| "The total number of scrapes.", |
| ) |
| ) |
| |
| var ( |
| ScrapeTypeEnvoy = "envoy" |
| ScrapeTypeApp = "application" |
| ScrapeTypeAgent = "agent" |
| ) |
| |
| var processStartTime = time.Now() |
| |
| func RecordStartupTime() { |
| delta := time.Since(processStartTime) |
| startupTime.Record(delta.Seconds()) |
| log.Infof("Readiness succeeded in %v", delta) |
| } |
| |
| func init() { |
| monitoring.MustRegister( |
| ScrapeTotals, |
| scrapeErrors, |
| startupTime, |
| ) |
| } |