feat(alertmanager): add support for webex,discord,telegram receivers

CHANGELOG.md

@@ -1,6 +1,7 @@
 # Changelog
 
 ## master / unreleased
+* [FEATURE] AlertManager: Add support for Webex, Discord and Telegram Receiver. #5493
 * [FEATURE] Ingester: added `-admin-limit-message` to customize the message contained in limit errors.#5460
 * [CHANGE] AlertManager: include reason label in cortex_alertmanager_notifications_failed_total.#5409
 * [CHANGE] Query: Set CORS Origin headers for Query API #5388

docs/configuration/config-file-reference.md

@@ -2999,7 +2999,7 @@ The `limits_config` configures default and per-tenant limits imposed by Cortex s
 # is given in JSON format. Rate limit has the same meaning as
 # -alertmanager.notification-rate-limit, but only applies for specific
 # integration. Allowed integration names: webhook, email, pagerduty, opsgenie,
-# wechat, slack, victorops, pushover, sns.
+# wechat, slack, victorops, pushover, sns, telegram, discord, webex.
 # CLI flag: -alertmanager.notification-rate-limit-per-integration
 [alertmanager_notification_rate_limit_per_integration: <map of string to float64> | default = {}]
 

go.mod

@@ -227,6 +227,7 @@ require (
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20230526203410-71b5a4ffd15e // indirect
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/telebot.v3 v3.1.3 // indirect
 )
 
 // Override since git.apache.org is down.  The docs say to fetch from github.

pkg/alertmanager/alertmanager.go

@@ -24,13 +24,16 @@ import (
 	"github.com/prometheus/alertmanager/inhibit"
 	"github.com/prometheus/alertmanager/nflog"
 	"github.com/prometheus/alertmanager/notify"
+	"github.com/prometheus/alertmanager/notify/discord"
 	"github.com/prometheus/alertmanager/notify/email"
 	"github.com/prometheus/alertmanager/notify/opsgenie"
 	"github.com/prometheus/alertmanager/notify/pagerduty"
 	"github.com/prometheus/alertmanager/notify/pushover"
 	"github.com/prometheus/alertmanager/notify/slack"
 	"github.com/prometheus/alertmanager/notify/sns"
+	"github.com/prometheus/alertmanager/notify/telegram"
 	"github.com/prometheus/alertmanager/notify/victorops"
+	"github.com/prometheus/alertmanager/notify/webex"
 	"github.com/prometheus/alertmanager/notify/webhook"
 	"github.com/prometheus/alertmanager/notify/wechat"
 	"github.com/prometheus/alertmanager/provider/mem"
@@ -479,7 +482,7 @@ func buildIntegrationsMap(nc []config.Receiver, tmpl *template.Template, firewal
 
 // buildReceiverIntegrations builds a list of integration notifiers off of a
 // receiver config.
-// Taken from https://github.com/prometheus/alertmanager/blob/94d875f1227b29abece661db1a68c001122d1da5/cmd/alertmanager/main.go#L112-L159.
+// Taken from https://github.com/prometheus/alertmanager/blob/263ca5c9438e/cmd/alertmanager/main.go#L134-L189.
 func buildReceiverIntegrations(nc config.Receiver, tmpl *template.Template, firewallDialer *util_net.FirewallDialer, logger log.Logger, wrapper func(string, notify.Notifier) notify.Notifier) ([]notify.Integration, error) {
 	var (
 		errs         types.MultiError
@@ -527,6 +530,15 @@ func buildReceiverIntegrations(nc config.Receiver, tmpl *template.Template, fire
 	for i, c := range nc.SNSConfigs {
 		add("sns", i, c, func(l log.Logger) (notify.Notifier, error) { return sns.New(c, tmpl, l, httpOps...) })
 	}
+	for i, c := range nc.TelegramConfigs {
+		add("telegram", i, c, func(l log.Logger) (notify.Notifier, error) { return telegram.New(c, tmpl, l, httpOps...) })
+	}
+	for i, c := range nc.DiscordConfigs {
+		add("discord", i, c, func(l log.Logger) (notify.Notifier, error) { return discord.New(c, tmpl, l, httpOps...) })
+	}
+	for i, c := range nc.WebexConfigs {
+		add("webex", i, c, func(l log.Logger) (notify.Notifier, error) { return webex.New(c, tmpl, l, httpOps...) })
+	}
 	// If we add support for more integrations, we need to add them to validation as well. See validation.allowedIntegrationNames field.
 	if errs.Len() > 0 {
 		return nil, &errs

pkg/util/validation/notifications_limit_flag.go

@@ -10,7 +10,7 @@ import (
 )
 
 var allowedIntegrationNames = []string{
-	"webhook", "email", "pagerduty", "opsgenie", "wechat", "slack", "victorops", "pushover", "sns",
+	"webhook", "email", "pagerduty", "opsgenie", "wechat", "slack", "victorops", "pushover", "sns", "telegram", "discord", "webex",
 }
 
 type NotificationRateLimitMap map[string]float64