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app/vmalert: add stripPort template function in the same way as Prometheus does

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See https://github.com/prometheus/prometheus/pull/10002
This commit is contained in:
Aliaksandr Valialkin 2022-01-13 22:53:40 +02:00
parent bc18368c15
commit 0f81ecd7df
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2 changed files with 12 additions and 0 deletions
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11
app/vmalert/notifier/template_func.go
View file

@ -17,6 +17,7 @@ import (
"errors"
"fmt"
"math"
"net"
"net/url"
"regexp"
"strings"
@ -61,6 +62,7 @@ var tmplFunc textTpl.FuncMap
// InitTemplateFunc initiates template helper functions
func InitTemplateFunc(externalURL *url.URL) {
// See https://prometheus.io/docs/prometheus/latest/configuration/template_reference/
tmplFunc = textTpl.FuncMap{
/* Strings */
@ -91,6 +93,15 @@ func InitTemplateFunc(externalURL *url.URL) {
// alias for https://golang.org/pkg/strings/#ToLower
"toLower": strings.ToLower,
// stripPort splits string into host and port, then returns only host.
"stripPort": func(hostPort string) string {
host, _, err := net.SplitHostPort(hostPort)
if err != nil {
return hostPort
}
return host
},
/* Numbers */
// humanize converts given number to a human readable format

1
docs/CHANGELOG.md
View file

@ -22,6 +22,7 @@ scrape_configs:
* FEATURE: [vmrestore](https://docs.victoriametrics.com/vmrestore.html): store `restore-in-progress` file in `-dst` directory while `vmrestore` is running. This file is automatically deleted when `vmrestore` is successfully finished. This helps detecting incompletely restored data on VictoriaMetrics start. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1958).
* FEATURE: [vmctl](https://docs.victoriametrics.com/vmctl.html): print the last sample timestamp when the data migration is interrupted either by user or by error. This helps continuing the data migration from the interruption moment. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1236).
* FEATURE: [vmalert](https://docs.victoriametrics.com/vmalert.html): expose `vmalert_remotewrite_total` metric at `/metrics` page. This makes possible calculating SLOs for error rate during writing recording rules and alert state to `-remoteWrite.url` with the query `vmalert_remotewrite_errors_total / vmalert_remotewrite_total`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/2040). Thanks to @afoninsky .
* FEATURE: [vmalert](https://docs.victoriametrics.com/vmalert.html): add `stripPort` template function in the same way as [Prometheus does](https://github.com/prometheus/prometheus/pull/10002).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent.html): make sure that `vmagent` replicas scrape the same targets at different time offsets when [replication is enabled in vmagent clustering mode](https://docs.victoriametrics.com/vmagent.html#scraping-big-number-of-targets). This guarantees that the [deduplication](https://docs.victoriametrics.com/#deduplication) consistently leaves samples from the same `vmagent` replica.
* BUGFIX: return the proper response stub from `/api/v1/query_exemplars` handler, which is needed for Grafana v8+. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1999).