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Name	Size	Last Modified	Actions
📁 ..	-	2025-05-25 12:27
📄 Dockerfile FROM node:20-alpine ENV NODE_PATH="/usr/local/lib/node_modules" RUN npm install juice@10.0.1 -g ENTRYPOINT [""]	115 B	2025-05-25 12:27
📄 Makefile DOCKER_IMG := alertmanager-template DOCKER_RUN_CURRENT_USER := docker run --user=$(shell id -u $(USER)):$(shell id -g $(USER)) DOCKER_CMD := $(DOCKER_RUN_CURRENT_USER) --rm -t -v $(PWD):/app -w /app $(DOCKER_IMG) ifeq ($(NO_DOCKER), true) DOCKER_CMD= endif template-image: @(if [ "$(NO_DOCKER)" != "true" ] ; then \ echo ">> build template docker image"; \ docker build -t $(DOCKER_IMG) . > /dev/null; \ fi; ) email.tmpl: template-image email.html @echo ">> inline css for html email template" $(DOCKER_CMD) ./inline-css.js	536 B	2025-05-25 12:27
📄 default.tmpl {{ define "__alertmanager" }}Alertmanager{{ end }} {{ define "__alertmanagerURL" }}{{ .ExternalURL }}/#/alerts?receiver={{ .Receiver \| urlquery }}{{ end }} {{ define "__subject" }}[{{ .Status \| toUpper }}{{ if eq .Status "firing" }}:{{ .Alerts.Firing \| len }}{{ end }}] {{ .GroupLabels.SortedPairs.Values \| join " " }} {{ if gt (len .CommonLabels) (len .GroupLabels) }}({{ with .CommonLabels.Remove .GroupLabels.Names }}{{ .Values \| join " " }}{{ end }}){{ end }}{{ end }} {{ define "__description" }}{{ end }} {{ define "__text_alert_list" }}{{ range . }}Labels: {{ range .Labels.SortedPairs }} - {{ .Name }} = {{ .Value }} {{ end }}Annotations: {{ range .Annotations.SortedPairs }} - {{ .Name }} = {{ .Value }} {{ end }}Source: {{ .GeneratorURL }} {{ end }}{{ end }} {{ define "__text_alert_list_markdown" }}{{ range . }} Labels: {{ range .Labels.SortedPairs }} - {{ .Name }} = {{ .Value }} {{ end }} Annotations: {{ range .Annotations.SortedPairs }} - {{ .Name }} = {{ .Value }} {{ end }} Source: {{ .GeneratorURL }} {{ end }} {{ end }} {{ define "slack.default.title" }}{{ template "__subject" . }}{{ end }} {{ define "slack.default.username" }}{{ template "__alertmanager" . }}{{ end }} {{ define "slack.default.fallback" }}{{ template "slack.default.title" . }} \| {{ template "slack.default.titlelink" . }}{{ end }} {{ define "slack.default.callbackid" }}{{ end }} {{ define "slack.default.pretext" }}{{ end }} {{ define "slack.default.titlelink" }}{{ template "__alertmanagerURL" . }}{{ end }} {{ define "slack.default.iconemoji" }}{{ end }} {{ define "slack.default.iconurl" }}{{ end }} {{ define "slack.default.text" }}{{ end }} {{ define "slack.default.footer" }}{{ end }} {{ define "pagerduty.default.description" }}{{ template "__subject" . }}{{ end }} {{ define "pagerduty.default.client" }}{{ template "__alertmanager" . }}{{ end }} {{ define "pagerduty.default.clientURL" }}{{ template "__alertmanagerURL" . }}{{ end }} {{ define "pagerduty.default.instances" }}{{ template "__text_alert_list" . }}{{ end }} {{ define "opsgenie.default.message" }}{{ template "__subject" . }}{{ end }} {{ define "opsgenie.default.description" }}{{ .CommonAnnotations.SortedPairs.Values \| join " " }} {{ if gt (len .Alerts.Firing) 0 -}} Alerts Firing: {{ template "__text_alert_list" .Alerts.Firing }} {{- end }} {{ if gt (len .Alerts.Resolved) 0 -}} Alerts Resolved: {{ template "__text_alert_list" .Alerts.Resolved }} {{- end }} {{- end }} {{ define "opsgenie.default.source" }}{{ template "__alertmanagerURL" . }}{{ end }} {{ define "wechat.default.message" }}{{ template "__subject" . }} {{ .CommonAnnotations.SortedPairs.Values \| join " " }} {{ if gt (len .Alerts.Firing) 0 -}} Alerts Firing: {{ template "__text_alert_list" .Alerts.Firing }} {{- end }} {{ if gt (len .Alerts.Resolved) 0 -}} Alerts Resolved: {{ template "__text_alert_list" .Alerts.Resolved }} {{- end }} AlertmanagerUrl: {{ template "__alertmanagerURL" . }} {{- end }} {{ define "wechat.default.to_user" }}{{ end }} {{ define "wechat.default.to_party" }}{{ end }} {{ define "wechat.default.to_tag" }}{{ end }} {{ define "wechat.default.agent_id" }}{{ end }} {{ define "victorops.default.state_message" }}{{ .CommonAnnotations.SortedPairs.Values \| join " " }} {{ if gt (len .Alerts.Firing) 0 -}} Alerts Firing: {{ template "__text_alert_list" .Alerts.Firing }} {{- end }} {{ if gt (len .Alerts.Resolved) 0 -}} Alerts Resolved: {{ template "__text_alert_list" .Alerts.Resolved }} {{- end }} {{- end }} {{ define "victorops.default.entity_display_name" }}{{ template "__subject" . }}{{ end }} {{ define "victorops.default.monitoring_tool" }}{{ template "__alertmanager" . }}{{ end }} {{ define "pushover.default.title" }}{{ template "__subject" . }}{{ end }} {{ define "pushover.default.message" }}{{ .CommonAnnotations.SortedPairs.Values \| join " " }} {{ if gt (len .Alerts.Firing) 0 }} Alerts Firing: {{ template "__text_alert_list" .Alerts.Firing }} {{ end }} {{ if gt (len .Alerts.Resolved) 0 }} Alerts Resolved: {{ template "__text_alert_list" .Alerts.Resolved }} {{ end }} {{ end }} {{ define "pushover.default.url" }}{{ template "__alertmanagerURL" . }}{{ end }} {{ define "sns.default.subject" }}{{ template "__subject" . }}{{ end }} {{ define "sns.default.message" }}{{ .CommonAnnotations.SortedPairs.Values \| join " " }} {{ if gt (len .Alerts.Firing) 0 }} Alerts Firing: {{ template "__text_alert_list" .Alerts.Firing }} {{ end }} {{ if gt (len .Alerts.Resolved) 0 }} Alerts Resolved: {{ template "__text_alert_list" .Alerts.Resolved }} {{ end }} {{ end }} {{ define "telegram.default.message" }} {{ if gt (len .Alerts.Firing) 0 }} Alerts Firing: {{ template "__text_alert_list" .Alerts.Firing }} {{ end }} {{ if gt (len .Alerts.Resolved) 0 }} Alerts Resolved: {{ template "__text_alert_list" .Alerts.Resolved }} {{ end }} {{ end }} {{ define "discord.default.content" }}{{ end }} {{ define "discord.default.title" }}{{ template "__subject" . }}{{ end }} {{ define "discord.default.message" }} {{ if gt (len .Alerts.Firing) 0 }} Alerts Firing: {{ template "__text_alert_list" .Alerts.Firing }} {{ end }} {{ if gt (len .Alerts.Resolved) 0 }} Alerts Resolved: {{ template "__text_alert_list" .Alerts.Resolved }} {{ end }} {{ end }} {{ define "webex.default.message" }}{{ .CommonAnnotations.SortedPairs.Values \| join " " }} {{ if gt (len .Alerts.Firing) 0 }} Alerts Firing: {{ template "__text_alert_list" .Alerts.Firing }} {{ end }} {{ if gt (len .Alerts.Resolved) 0 }} Alerts Resolved: {{ template "__text_alert_list" .Alerts.Resolved }} {{ end }} {{ end }} {{ define "msteams.default.summary" }}{{ template "__subject" . }}{{ end }} {{ define "msteams.default.title" }}{{ template "__subject" . }}{{ end }} {{ define "msteams.default.text" }} {{ if gt (len .Alerts.Firing) 0 }} # Alerts Firing: {{ template "__text_alert_list_markdown" .Alerts.Firing }} {{ end }} {{ if gt (len .Alerts.Resolved) 0 }} # Alerts Resolved: {{ template "__text_alert_list_markdown" .Alerts.Resolved }} {{ end }} {{ end }} {{ define "msteamsv2.default.title" }}{{ template "__subject" . }}{{ end }} {{ define "msteamsv2.default.text" }} {{ if gt (len .Alerts.Firing) 0 }} # Alerts Firing: {{ template "__text_alert_list_markdown" .Alerts.Firing }} {{ end }} {{ if gt (len .Alerts.Resolved) 0 }} # Alerts Resolved: {{ template "__text_alert_list_markdown" .Alerts.Resolved }} {{ end }} {{ end }} {{ define "jira.default.summary" }}{{ template "__subject" . }}{{ end }} {{ define "jira.default.description" }} {{ if gt (len .Alerts.Firing) 0 }} # Alerts Firing: {{ template "__text_alert_list_markdown" .Alerts.Firing }} {{ end }} {{ if gt (len .Alerts.Resolved) 0 }} # Alerts Resolved: {{ template "__text_alert_list_markdown" .Alerts.Resolved }} {{ end }} {{ end }} {{- define "jira.default.priority" -}} {{- $priority := "" }} {{- range .Alerts.Firing -}} {{- $severity := index .Labels "severity" -}} {{- if (eq $severity "critical") -}} {{- $priority = "High" -}} {{- else if (and (eq $severity "warning") (ne $priority "High")) -}} {{- $priority = "Medium" -}} {{- else if (and (eq $severity "info") (eq $priority "")) -}} {{- $priority = "Low" -}} {{- end -}} {{- end -}} {{- if eq $priority "" -}} {{- range .Alerts.Resolved -}} {{- $severity := index .Labels "severity" -}} {{- if (eq $severity "critical") -}} {{- $priority = "High" -}} {{- else if (and (eq $severity "warning") (ne $priority "High")) -}} {{- $priority = "Medium" -}} {{- else if (and (eq $severity "info") (eq $priority "")) -}} {{- $priority = "Low" -}} {{- end -}} {{- end -}} {{- end -}} {{- $priority -}} {{- end -}} {{ define "rocketchat.default.title" }}{{ template "__subject" . }}{{ end }} {{ define "rocketchat.default.alias" }}{{ template "__alertmanager" . }}{{ end }} {{ define "rocketchat.default.titlelink" }}{{ template "__alertmanagerURL" . }}{{ end }} {{ define "rocketchat.default.emoji" }}{{ end }} {{ define "rocketchat.default.iconurl" }}{{ end }} {{ define "rocketchat.default.text" }}{{ end }}	7.91 KB	2025-05-25 12:27
📄 email.html <!-- Style and HTML derived from https://github.com/mailgun/transactional-email-templates The MIT License (MIT) Copyright (c) 2014 Mailgun Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta name="viewport" content="width=device-width" /> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>{{ template "__subject" . }}</title> <style> /* ------------------------------------- GLOBAL A very basic CSS reset ------------------------------------- / { margin: 0; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; } img { max-width: 100%; } body { -webkit-font-smoothing: antialiased; -webkit-text-size-adjust: none; width: 100% !important; height: 100%; line-height: 1.6em; /* 1.6em * 14px = 22.4px, use px to get airier line-height also in Thunderbird, and Yahoo!, Outlook.com, AOL webmail clients / /line-height: 22px;/ } / Let's make sure all tables have defaults / table td { vertical-align: top; } / ------------------------------------- BODY & CONTAINER ------------------------------------- / body { background-color: #f6f6f6; } .body-wrap { background-color: #f6f6f6; width: 100%; } .container { display: block !important; max-width: 600px !important; margin: 0 auto !important; / makes it centered / clear: both !important; } .content { max-width: 600px; margin: 0 auto; display: block; padding: 20px; } / ------------------------------------- HEADER, FOOTER, MAIN ------------------------------------- / .main { background-color: #fff; border: 1px solid #e9e9e9; border-radius: 3px; } .content-wrap { padding: 30px; } .content-block { padding: 0 0 20px; } .header { width: 100%; margin-bottom: 20px; } .footer { width: 100%; clear: both; color: #999; padding: 20px; } .footer p, .footer a, .footer td { color: #999; font-size: 12px; } / ------------------------------------- TYPOGRAPHY ------------------------------------- / h1, h2, h3 { font-family: "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif; color: #000; margin: 40px 0 0; line-height: 1.2em; font-weight: 400; } h1 { font-size: 32px; font-weight: 500; / 1.2em * 32px = 38.4px, use px to get airier line-height also in Thunderbird, and Yahoo!, Outlook.com, AOL webmail clients / /line-height: 38px;/ } h2 { font-size: 24px; / 1.2em * 24px = 28.8px, use px to get airier line-height also in Thunderbird, and Yahoo!, Outlook.com, AOL webmail clients / /line-height: 29px;/ } h3 { font-size: 18px; / 1.2em * 18px = 21.6px, use px to get airier line-height also in Thunderbird, and Yahoo!, Outlook.com, AOL webmail clients / /line-height: 22px;/ } h4 { font-size: 14px; font-weight: 600; } p, ul, ol { margin-bottom: 10px; font-weight: normal; } p li, ul li, ol li { margin-left: 5px; list-style-position: inside; } / ------------------------------------- LINKS & BUTTONS ------------------------------------- / a { color: #348eda; text-decoration: underline; } .btn-primary { text-decoration: none; color: #FFF; background-color: #348eda; border: solid #348eda; border-width: 10px 20px; line-height: 2em; / 2em * 14px = 28px, use px to get airier line-height also in Thunderbird, and Yahoo!, Outlook.com, AOL webmail clients / /line-height: 28px;/ font-weight: bold; text-align: center; cursor: pointer; display: inline-block; border-radius: 5px; text-transform: capitalize; } / ------------------------------------- OTHER STYLES THAT MIGHT BE USEFUL ------------------------------------- / .last { margin-bottom: 0; } .first { margin-top: 0; } .aligncenter { text-align: center; } .alignright { text-align: right; } .alignleft { text-align: left; } .clear { clear: both; } / ------------------------------------- ALERTS Change the class depending on warning email, good email or bad email ------------------------------------- / .alert { font-size: 16px; color: #fff; font-weight: 500; padding: 20px; text-align: center; border-radius: 3px 3px 0 0; } .alert a { color: #fff; text-decoration: none; font-weight: 500; font-size: 16px; } .alert.alert-warning { background-color: #E6522C; } .alert.alert-bad { background-color: #D0021B; } .alert.alert-good { background-color: #68B90F; } / ------------------------------------- INVOICE Styles for the billing table ------------------------------------- / .invoice { margin: 40px auto; text-align: left; width: 80%; } .invoice td { padding: 5px 0; } .invoice .invoice-items { width: 100%; } .invoice .invoice-items td { border-top: #eee 1px solid; } .invoice .invoice-items .total td { border-top: 2px solid #333; border-bottom: 2px solid #333; font-weight: 700; } / ------------------------------------- RESPONSIVE AND MOBILE FRIENDLY STYLES ------------------------------------- */ @media only screen and (max-width: 640px) { body { padding: 0 !important; } h1, h2, h3, h4 { font-weight: 800 !important; margin: 20px 0 5px !important; } h1 { font-size: 22px !important; } h2 { font-size: 18px !important; } h3 { font-size: 16px !important; } .container { padding: 0 !important; width: 100% !important; } .content { padding: 0 !important; } .content-wrap { padding: 10px !important; } .invoice { width: 100% !important; } } </style> </head> <body itemscope itemtype="https://schema.org/EmailMessage"> <table class="body-wrap"> <tr> <td></td> <td class="container" width="600"> <div class="content"> <table class="main" width="100%" cellpadding="0" cellspacing="0"> <tr> {{ if gt (len .Alerts.Firing) 0 }} <td class="alert alert-warning"> {{ .Alerts \| len }} alert{{ if gt (len .Alerts) 1 }}s{{ end }} for {{ range .GroupLabels.SortedPairs }} {{ .Name }}={{ .Value }} {{ end }} </td> {{ else }} <td class="alert alert-good"> {{ .Alerts \| len }} alert{{ if gt (len .Alerts) 1 }}s{{ end }} for {{ range .GroupLabels.SortedPairs }} {{ .Name }}={{ .Value }} {{ end }} </td> {{ end }} </tr> <tr> <td class="content-wrap"> <table width="100%" cellpadding="0" cellspacing="0"> <tr> <td class="content-block"> <a href='{{ template "__alertmanagerURL" . }}' class="btn-primary">View in {{ template "__alertmanager" . }}</a> </td> </tr> {{ if gt (len .Alerts.Firing) 0 }} <tr> <td class="content-block"> <strong>[{{ .Alerts.Firing \| len }}] Firing</strong> </td> </tr> {{ end }} {{ range .Alerts.Firing }} <tr> <td class="content-block"> <strong>Labels</strong><br /> {{ range .Labels.SortedPairs }}{{ .Name }} = {{ .Value }}<br />{{ end }} {{ if gt (len .Annotations) 0 }}<strong>Annotations</strong><br />{{ end }} {{ range .Annotations.SortedPairs }}{{ .Name }} = {{ .Value }}<br />{{ end }} <a href="{{ .GeneratorURL }}">Source</a><br /> </td> </tr> {{ end }} {{ if gt (len .Alerts.Resolved) 0 }} {{ if gt (len .Alerts.Firing) 0 }} <tr> <td class="content-block"> <br /> <hr /> <br /> </td> </tr> {{ end }} <tr> <td class="content-block"> <strong>[{{ .Alerts.Resolved \| len }}] Resolved</strong> </td> </tr> {{ end }} {{ range .Alerts.Resolved }} <tr> <td class="content-block"> <strong>Labels</strong><br /> {{ range .Labels.SortedPairs }}{{ .Name }} = {{ .Value }}<br />{{ end }} {{ if gt (len .Annotations) 0 }}<strong>Annotations</strong><br />{{ end }} {{ range .Annotations.SortedPairs }}{{ .Name }} = {{ .Value }}<br />{{ end }} <a href="{{ .GeneratorURL }}">Source</a><br /> </td> </tr> {{ end }} </table> </td> </tr> </table> <div class="footer"> <table width="100%"> <tr> <td class="aligncenter content-block"><a href='{{ .ExternalURL }}'>Sent by {{ template "__alertmanager" . }}</a></td> </tr> </table> </div></div> </td> <td></td> </tr> </table> </body> </html>	10.08 KB	2025-05-25 12:27
📄 email.tmpl {{ define "email.default.subject" }}{{ template "__subject" . }}{{ end }} {{ define "email.default.html" }} <!-- Style and HTML derived from https://github.com/mailgun/transactional-email-templates The MIT License (MIT) Copyright (c) 2014 Mailgun Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <head> <meta name="viewport" content="width=device-width"> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>{{ template "__subject" . }}</title> <style> @media only screen and (max-width: 640px) { body { padding: 0 !important; } h1, h2, h3, h4 { font-weight: 800 !important; margin: 20px 0 5px !important; } h1 { font-size: 22px !important; } h2 { font-size: 18px !important; } h3 { font-size: 16px !important; } .container { padding: 0 !important; width: 100% !important; } .content { padding: 0 !important; } .content-wrap { padding: 10px !important; } .invoice { width: 100% !important; } } </style> </head> <body itemscope itemtype="https://schema.org/EmailMessage" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; -webkit-font-smoothing: antialiased; -webkit-text-size-adjust: none; height: 100%; line-height: 1.6em; background-color: #f6f6f6; width: 100%;"> <table class="body-wrap" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; background-color: #f6f6f6; width: 100%;" width="100%" bgcolor="#f6f6f6"> <tr style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <td style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; vertical-align: top;" valign="top"></td> <td class="container" width="600" style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; vertical-align: top; display: block; max-width: 600px; margin: 0 auto; clear: both;" valign="top"> <div class="content" style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; max-width: 600px; margin: 0 auto; display: block; padding: 20px;"> <table class="main" width="100%" cellpadding="0" cellspacing="0" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; background-color: #fff; border: 1px solid #e9e9e9; border-radius: 3px;" bgcolor="#fff"> <tr style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> {{ if gt (len .Alerts.Firing) 0 }} <td class="alert alert-warning" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; vertical-align: top; font-size: 16px; color: #fff; font-weight: 500; padding: 20px; text-align: center; border-radius: 3px 3px 0 0; background-color: #E6522C;" valign="top" align="center" bgcolor="#E6522C"> {{ .Alerts \| len }} alert{{ if gt (len .Alerts) 1 }}s{{ end }} for {{ range .GroupLabels.SortedPairs }} {{ .Name }}={{ .Value }} {{ end }} </td> {{ else }} <td class="alert alert-good" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; vertical-align: top; font-size: 16px; color: #fff; font-weight: 500; padding: 20px; text-align: center; border-radius: 3px 3px 0 0; background-color: #68B90F;" valign="top" align="center" bgcolor="#68B90F"> {{ .Alerts \| len }} alert{{ if gt (len .Alerts) 1 }}s{{ end }} for {{ range .GroupLabels.SortedPairs }} {{ .Name }}={{ .Value }} {{ end }} </td> {{ end }} </tr> <tr style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <td class="content-wrap" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; vertical-align: top; padding: 30px;" valign="top"> <table width="100%" cellpadding="0" cellspacing="0" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <tr style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <td class="content-block" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; vertical-align: top; padding: 0 0 20px;" valign="top"> <a href="{{ template "__alertmanagerURL" . }}" class="btn-primary" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; text-decoration: none; color: #FFF; background-color: #348eda; border: solid #348eda; border-width: 10px 20px; line-height: 2em; font-weight: bold; text-align: center; cursor: pointer; display: inline-block; border-radius: 5px; text-transform: capitalize;">View in {{ template "__alertmanager" . }}</a> </td> </tr> {{ if gt (len .Alerts.Firing) 0 }} <tr style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <td class="content-block" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; vertical-align: top; padding: 0 0 20px;" valign="top"> <strong style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">[{{ .Alerts.Firing \| len }}] Firing</strong> </td> </tr> {{ end }} {{ range .Alerts.Firing }} <tr style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <td class="content-block" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; vertical-align: top; padding: 0 0 20px;" valign="top"> <strong style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">Labels</strong><br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> {{ range .Labels.SortedPairs }}{{ .Name }} = {{ .Value }}<br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">{{ end }} {{ if gt (len .Annotations) 0 }}<strong style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">Annotations</strong><br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">{{ end }} {{ range .Annotations.SortedPairs }}{{ .Name }} = {{ .Value }}<br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">{{ end }} <a href="{{ .GeneratorURL }}" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; color: #348eda; text-decoration: underline;">Source</a><br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> </td> </tr> {{ end }} {{ if gt (len .Alerts.Resolved) 0 }} {{ if gt (len .Alerts.Firing) 0 }} <tr style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <td class="content-block" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; vertical-align: top; padding: 0 0 20px;" valign="top"> <br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <hr style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> </td> </tr> {{ end }} <tr style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <td class="content-block" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; vertical-align: top; padding: 0 0 20px;" valign="top"> <strong style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">[{{ .Alerts.Resolved \| len }}] Resolved</strong> </td> </tr> {{ end }} {{ range .Alerts.Resolved }} <tr style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <td class="content-block" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; vertical-align: top; padding: 0 0 20px;" valign="top"> <strong style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">Labels</strong><br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> {{ range .Labels.SortedPairs }}{{ .Name }} = {{ .Value }}<br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">{{ end }} {{ if gt (len .Annotations) 0 }}<strong style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">Annotations</strong><br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">{{ end }} {{ range .Annotations.SortedPairs }}{{ .Name }} = {{ .Value }}<br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;">{{ end }} <a href="{{ .GeneratorURL }}" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; color: #348eda; text-decoration: underline;">Source</a><br style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> </td> </tr> {{ end }} </table> </td> </tr> </table> <div class="footer" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; width: 100%; clear: both; color: #999; padding: 20px;"> <table width="100%" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <tr style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px;"> <td class="aligncenter content-block" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; vertical-align: top; padding: 0 0 20px; text-align: center; color: #999; font-size: 12px;" valign="top" align="center"><a href="{{ .ExternalURL }}" style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; text-decoration: underline; color: #999; font-size: 12px;">Sent by {{ template "__alertmanager" . }}</a></td> </tr> </table> </div></div> </td> <td style="margin: 0; font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif; box-sizing: border-box; font-size: 14px; vertical-align: top;" valign="top"></td> </tr> </table> </body> </html> {{ end }}	13.75 KB	2025-05-25 12:27
📄 inline-css.js #!/usr/bin/env node // Copyright 2021 The Prometheus 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. const juice = require('juice') const fs = require('fs') const inputFile = 'email.html' const outputFile = 'email.tmpl' var inputData = '' try { inputData = fs.readFileSync(inputFile, 'utf8') } catch (err) { console.error(err) process.exit(1) } var templateData = juice(inputData) const outputData = ` {{ define "email.default.subject" }}{{ template "__subject" . }}{{ end }} {{ define "email.default.html" }} ${templateData} {{ end }} ` fs.writeFileSync(outputFile, outputData)	1.08 KB	2025-05-25 12:27
📄 template.go // Copyright 2015 Prometheus Team // 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 template import ( "bytes" tmplhtml "html/template" "io" "net/url" "path" "path/filepath" "regexp" "sort" "strings" tmpltext "text/template" "time" commonTemplates "github.com/prometheus/common/helpers/templates" "github.com/prometheus/common/model" "golang.org/x/text/cases" "golang.org/x/text/language" "github.com/prometheus/alertmanager/asset" "github.com/prometheus/alertmanager/types" ) // Template bundles a text and a html template instance. type Template struct { text tmpltext.Template html tmplhtml.Template ExternalURL url.URL } // Option is generic modifier of the text and html templates used by a Template. type Option func(text tmpltext.Template, html tmplhtml.Template) // New returns a new Template with the DefaultFuncs added. The DefaultFuncs // have precedence over any added custom functions. Options allow customization // of the text and html templates in given order. func New(options ...Option) (Template, error) { t := &Template{ text: tmpltext.New("").Option("missingkey=zero"), html: tmplhtml.New("").Option("missingkey=zero"), } for _, o := range options { o(t.text, t.html) } t.text.Funcs(tmpltext.FuncMap(DefaultFuncs)) t.html.Funcs(tmplhtml.FuncMap(DefaultFuncs)) return t, nil } // FromGlobs calls ParseGlob on all path globs provided and returns the // resulting Template. func FromGlobs(paths []string, options ...Option) (Template, error) { t, err := New(options...) if err != nil { return nil, err } defaultTemplates := []string{"default.tmpl", "email.tmpl"} for _, file := range defaultTemplates { f, err := asset.Assets.Open(path.Join("/templates", file)) if err != nil { return nil, err } if err := t.Parse(f); err != nil { f.Close() return nil, err } f.Close() } for _, tp := range paths { if err := t.FromGlob(tp); err != nil { return nil, err } } return t, nil } // Parse parses the given text into the template. func (t Template) Parse(r io.Reader) error { b, err := io.ReadAll(r) if err != nil { return err } if t.text, err = t.text.Parse(string(b)); err != nil { return err } if t.html, err = t.html.Parse(string(b)); err != nil { return err } return nil } // FromGlob calls ParseGlob on given path glob provided and parses into the // template. func (t Template) FromGlob(path string) error { // ParseGlob in the template packages errors if not at least one file is // matched. We want to allow empty matches that may be populated later on. p, err := filepath.Glob(path) if err != nil { return err } if len(p) > 0 { if t.text, err = t.text.ParseGlob(path); err != nil { return err } if t.html, err = t.html.ParseGlob(path); err != nil { return err } } return nil } // ExecuteTextString needs a meaningful doc comment (TODO(fabxc)). func (t Template) ExecuteTextString(text string, data interface{}) (string, error) { if text == "" { return "", nil } tmpl, err := t.text.Clone() if err != nil { return "", err } tmpl, err = tmpl.New("").Option("missingkey=zero").Parse(text) if err != nil { return "", err } var buf bytes.Buffer err = tmpl.Execute(&buf, data) return buf.String(), err } // ExecuteHTMLString needs a meaningful doc comment (TODO(fabxc)). func (t Template) ExecuteHTMLString(html string, data interface{}) (string, error) { if html == "" { return "", nil } tmpl, err := t.html.Clone() if err != nil { return "", err } tmpl, err = tmpl.New("").Option("missingkey=zero").Parse(html) if err != nil { return "", err } var buf bytes.Buffer err = tmpl.Execute(&buf, data) return buf.String(), err } type FuncMap map[string]interface{} var DefaultFuncs = FuncMap{ "toUpper": strings.ToUpper, "toLower": strings.ToLower, "title": func(text string) string { // Casers should not be shared between goroutines, instead // create a new caser each time this function is called. return cases.Title(language.AmericanEnglish).String(text) }, "trimSpace": strings.TrimSpace, // join is equal to strings.Join but inverts the argument order // for easier pipelining in templates. "join": func(sep string, s []string) string { return strings.Join(s, sep) }, "match": regexp.MatchString, "safeHtml": func(text string) tmplhtml.HTML { return tmplhtml.HTML(text) }, "reReplaceAll": func(pattern, repl, text string) string { re := regexp.MustCompile(pattern) return re.ReplaceAllString(text, repl) }, "stringSlice": func(s ...string) []string { return s }, // date returns the text representation of the time in the specified format. "date": func(fmt string, t time.Time) string { return t.Format(fmt) }, // tz returns the time in the timezone. "tz": func(name string, t time.Time) (time.Time, error) { loc, err := time.LoadLocation(name) if err != nil { return time.Time{}, err } return t.In(loc), nil }, "since": time.Since, "humanizeDuration": commonTemplates.HumanizeDuration, } // Pair is a key/value string pair. type Pair struct { Name, Value string } // Pairs is a list of key/value string pairs. type Pairs []Pair // Names returns a list of names of the pairs. func (ps Pairs) Names() []string { ns := make([]string, 0, len(ps)) for _, p := range ps { ns = append(ns, p.Name) } return ns } // Values returns a list of values of the pairs. func (ps Pairs) Values() []string { vs := make([]string, 0, len(ps)) for _, p := range ps { vs = append(vs, p.Value) } return vs } func (ps Pairs) String() string { b := strings.Builder{} for i, p := range ps { b.WriteString(p.Name) b.WriteRune('=') b.WriteString(p.Value) if i < len(ps)-1 { b.WriteString(", ") } } return b.String() } // KV is a set of key/value string pairs. type KV map[string]string // SortedPairs returns a sorted list of key/value pairs. func (kv KV) SortedPairs() Pairs { var ( pairs = make([]Pair, 0, len(kv)) keys = make([]string, 0, len(kv)) sortStart = 0 ) for k := range kv { if k == string(model.AlertNameLabel) { keys = append([]string{k}, keys...) sortStart = 1 } else { keys = append(keys, k) } } sort.Strings(keys[sortStart:]) for _, k := range keys { pairs = append(pairs, Pair{k, kv[k]}) } return pairs } // Remove returns a copy of the key/value set without the given keys. func (kv KV) Remove(keys []string) KV { keySet := make(map[string]struct{}, len(keys)) for _, k := range keys { keySet[k] = struct{}{} } res := KV{} for k, v := range kv { if _, ok := keySet[k]; !ok { res[k] = v } } return res } // Names returns the names of the label names in the LabelSet. func (kv KV) Names() []string { return kv.SortedPairs().Names() } // Values returns a list of the values in the LabelSet. func (kv KV) Values() []string { return kv.SortedPairs().Values() } func (kv KV) String() string { return kv.SortedPairs().String() } // Data is the data passed to notification templates and webhook pushes. // // End-users should not be exposed to Go's type system, as this will confuse them and prevent // simple things like simple equality checks to fail. Map everything to float64/string. type Data struct { Receiver string `json:"receiver"` Status string `json:"status"` Alerts Alerts `json:"alerts"` GroupLabels KV `json:"groupLabels"` CommonLabels KV `json:"commonLabels"` CommonAnnotations KV `json:"commonAnnotations"` ExternalURL string `json:"externalURL"` } // Alert holds one alert for notification templates. type Alert struct { Status string `json:"status"` Labels KV `json:"labels"` Annotations KV `json:"annotations"` StartsAt time.Time `json:"startsAt"` EndsAt time.Time `json:"endsAt"` GeneratorURL string `json:"generatorURL"` Fingerprint string `json:"fingerprint"` } // Alerts is a list of Alert objects. type Alerts []Alert // Firing returns the subset of alerts that are firing. func (as Alerts) Firing() []Alert { res := []Alert{} for _, a := range as { if a.Status == string(model.AlertFiring) { res = append(res, a) } } return res } // Resolved returns the subset of alerts that are resolved. func (as Alerts) Resolved() []Alert { res := []Alert{} for _, a := range as { if a.Status == string(model.AlertResolved) { res = append(res, a) } } return res } // Data assembles data for template expansion. func (t Template) Data(recv string, groupLabels model.LabelSet, alerts ...types.Alert) Data { data := &Data{ Receiver: regexp.QuoteMeta(recv), Status: string(types.Alerts(alerts...).Status()), Alerts: make(Alerts, 0, len(alerts)), GroupLabels: KV{}, CommonLabels: KV{}, CommonAnnotations: KV{}, ExternalURL: t.ExternalURL.String(), } // The call to types.Alert is necessary to correctly resolve the internal // representation to the user representation. for _, a := range types.Alerts(alerts...) { alert := Alert{ Status: string(a.Status()), Labels: make(KV, len(a.Labels)), Annotations: make(KV, len(a.Annotations)), StartsAt: a.StartsAt, EndsAt: a.EndsAt, GeneratorURL: a.GeneratorURL, Fingerprint: a.Fingerprint().String(), } for k, v := range a.Labels { alert.Labels[string(k)] = string(v) } for k, v := range a.Annotations { alert.Annotations[string(k)] = string(v) } data.Alerts = append(data.Alerts, alert) } for k, v := range groupLabels { data.GroupLabels[string(k)] = string(v) } if len(alerts) >= 1 { var ( commonLabels = alerts[0].Labels.Clone() commonAnnotations = alerts[0].Annotations.Clone() ) for _, a := range alerts[1:] { if len(commonLabels) == 0 && len(commonAnnotations) == 0 { break } for ln, lv := range commonLabels { if a.Labels[ln] != lv { delete(commonLabels, ln) } } for an, av := range commonAnnotations { if a.Annotations[an] != av { delete(commonAnnotations, an) } } } for k, v := range commonLabels { data.CommonLabels[string(k)] = string(v) } for k, v := range commonAnnotations { data.CommonAnnotations[string(k)] = string(v) } } return data }	10.53 KB	2025-05-25 12:27
📄 template_test.go // Copyright 2018 Prometheus Team // 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 template import ( tmplhtml "html/template" "net/url" "sync" "testing" tmpltext "text/template" "time" "github.com/prometheus/common/model" "github.com/stretchr/testify/require" "github.com/prometheus/alertmanager/types" ) func TestPairNames(t testing.T) { pairs := Pairs{ {"name1", "value1"}, {"name2", "value2"}, {"name3", "value3"}, } expected := []string{"name1", "name2", "name3"} require.EqualValues(t, expected, pairs.Names()) } func TestPairValues(t testing.T) { pairs := Pairs{ {"name1", "value1"}, {"name2", "value2"}, {"name3", "value3"}, } expected := []string{"value1", "value2", "value3"} require.EqualValues(t, expected, pairs.Values()) } func TestPairsString(t testing.T) { pairs := Pairs{{"name1", "value1"}} require.Equal(t, "name1=value1", pairs.String()) pairs = append(pairs, Pair{"name2", "value2"}) require.Equal(t, "name1=value1, name2=value2", pairs.String()) } func TestKVSortedPairs(t testing.T) { kv := KV{"d": "dVal", "b": "bVal", "c": "cVal"} expectedPairs := Pairs{ {"b", "bVal"}, {"c", "cVal"}, {"d", "dVal"}, } for i, p := range kv.SortedPairs() { require.EqualValues(t, p.Name, expectedPairs[i].Name) require.EqualValues(t, p.Value, expectedPairs[i].Value) } // validates alertname always comes first kv = KV{"d": "dVal", "b": "bVal", "c": "cVal", "alertname": "alert", "a": "aVal"} expectedPairs = Pairs{ {"alertname", "alert"}, {"a", "aVal"}, {"b", "bVal"}, {"c", "cVal"}, {"d", "dVal"}, } for i, p := range kv.SortedPairs() { require.EqualValues(t, p.Name, expectedPairs[i].Name) require.EqualValues(t, p.Value, expectedPairs[i].Value) } } func TestKVRemove(t testing.T) { kv := KV{ "key1": "val1", "key2": "val2", "key3": "val3", "key4": "val4", } kv = kv.Remove([]string{"key2", "key4"}) expected := []string{"key1", "key3"} require.EqualValues(t, expected, kv.Names()) } func TestAlertsFiring(t testing.T) { alerts := Alerts{ {Status: string(model.AlertFiring)}, {Status: string(model.AlertResolved)}, {Status: string(model.AlertFiring)}, {Status: string(model.AlertResolved)}, {Status: string(model.AlertResolved)}, } for _, alert := range alerts.Firing() { if alert.Status != string(model.AlertFiring) { t.Errorf("unexpected status %q", alert.Status) } } } func TestAlertsResolved(t testing.T) { alerts := Alerts{ {Status: string(model.AlertFiring)}, {Status: string(model.AlertResolved)}, {Status: string(model.AlertFiring)}, {Status: string(model.AlertResolved)}, {Status: string(model.AlertResolved)}, } for _, alert := range alerts.Resolved() { if alert.Status != string(model.AlertResolved) { t.Errorf("unexpected status %q", alert.Status) } } } func TestData(t testing.T) { u, err := url.Parse("http://example.com/") require.NoError(t, err) tmpl := &Template{ExternalURL: u} startTime := time.Time{}.Add(1 * time.Second) endTime := time.Time{}.Add(2 * time.Second) for _, tc := range []struct { receiver string groupLabels model.LabelSet alerts []types.Alert exp Data }{ { receiver: "webhook", exp: &Data{ Receiver: "webhook", Status: "resolved", Alerts: Alerts{}, GroupLabels: KV{}, CommonLabels: KV{}, CommonAnnotations: KV{}, ExternalURL: u.String(), }, }, { receiver: "webhook", groupLabels: model.LabelSet{ model.LabelName("job"): model.LabelValue("foo"), }, alerts: []types.Alert{ { Alert: model.Alert{ StartsAt: startTime, Labels: model.LabelSet{ model.LabelName("severity"): model.LabelValue("warning"), model.LabelName("job"): model.LabelValue("foo"), }, Annotations: model.LabelSet{ model.LabelName("description"): model.LabelValue("something happened"), model.LabelName("runbook"): model.LabelValue("foo"), }, }, }, { Alert: model.Alert{ StartsAt: startTime, EndsAt: endTime, Labels: model.LabelSet{ model.LabelName("severity"): model.LabelValue("critical"), model.LabelName("job"): model.LabelValue("foo"), }, Annotations: model.LabelSet{ model.LabelName("description"): model.LabelValue("something else happened"), model.LabelName("runbook"): model.LabelValue("foo"), }, }, }, }, exp: &Data{ Receiver: "webhook", Status: "firing", Alerts: Alerts{ { Status: "firing", Labels: KV{"severity": "warning", "job": "foo"}, Annotations: KV{"description": "something happened", "runbook": "foo"}, StartsAt: startTime, Fingerprint: "9266ef3da838ad95", }, { Status: "resolved", Labels: KV{"severity": "critical", "job": "foo"}, Annotations: KV{"description": "something else happened", "runbook": "foo"}, StartsAt: startTime, EndsAt: endTime, Fingerprint: "3b15fd163d36582e", }, }, GroupLabels: KV{"job": "foo"}, CommonLabels: KV{"job": "foo"}, CommonAnnotations: KV{"runbook": "foo"}, ExternalURL: u.String(), }, }, { receiver: "webhook", groupLabels: model.LabelSet{}, alerts: []types.Alert{ { Alert: model.Alert{ StartsAt: startTime, Labels: model.LabelSet{ model.LabelName("severity"): model.LabelValue("warning"), model.LabelName("job"): model.LabelValue("foo"), }, Annotations: model.LabelSet{ model.LabelName("description"): model.LabelValue("something happened"), model.LabelName("runbook"): model.LabelValue("foo"), }, }, }, { Alert: model.Alert{ StartsAt: startTime, EndsAt: endTime, Labels: model.LabelSet{ model.LabelName("severity"): model.LabelValue("critical"), model.LabelName("job"): model.LabelValue("bar"), }, Annotations: model.LabelSet{ model.LabelName("description"): model.LabelValue("something else happened"), model.LabelName("runbook"): model.LabelValue("bar"), }, }, }, }, exp: &Data{ Receiver: "webhook", Status: "firing", Alerts: Alerts{ { Status: "firing", Labels: KV{"severity": "warning", "job": "foo"}, Annotations: KV{"description": "something happened", "runbook": "foo"}, StartsAt: startTime, Fingerprint: "9266ef3da838ad95", }, { Status: "resolved", Labels: KV{"severity": "critical", "job": "bar"}, Annotations: KV{"description": "something else happened", "runbook": "bar"}, StartsAt: startTime, EndsAt: endTime, Fingerprint: "c7e68cb08e3e67f9", }, }, GroupLabels: KV{}, CommonLabels: KV{}, CommonAnnotations: KV{}, ExternalURL: u.String(), }, }, } { tc := tc t.Run("", func(t testing.T) { got := tmpl.Data(tc.receiver, tc.groupLabels, tc.alerts...) require.Equal(t, tc.exp, got) }) } } func TestTemplateExpansion(t testing.T) { tmpl, err := FromGlobs([]string{}) require.NoError(t, err) for _, tc := range []struct { title string in string data interface{} html bool exp string fail bool }{ { title: "Template without action", in: `abc`, exp: "abc", }, { title: "Template with simple action", in: `{{ "abc" }}`, exp: "abc", }, { title: "Template with invalid syntax", in: `{{ `, fail: true, }, { title: "Template using toUpper", in: `{{ "abc" \| toUpper }}`, exp: "ABC", }, { title: "Template using toLower", in: `{{ "ABC" \| toLower }}`, exp: "abc", }, { title: "Template using title", in: `{{ "abc" \| title }}`, exp: "Abc", }, { title: "Template using TrimSpace", in: `{{ " a b c " \| trimSpace }}`, exp: "a b c", }, { title: "Template using positive match", in: `{{ if match "^a" "abc"}}abc{{ end }}`, exp: "abc", }, { title: "Template using negative match", in: `{{ if match "abcd" "abc" }}abc{{ end }}`, exp: "", }, { title: "Template using join", in: `{{ . \| join "," }}`, data: []string{"a", "b", "c"}, exp: "a,b,c", }, { title: "Text template without HTML escaping", in: `{{ "<b>" }}`, exp: "<b>", }, { title: "HTML template with escaping", in: `{{ "<b>" }}`, html: true, exp: "<b>", }, { title: "HTML template using safeHTML", in: `{{ "<b>" \| safeHtml }}`, html: true, exp: "<b>", }, { title: "Template using reReplaceAll", in: `{{ reReplaceAll "ab" "AB" "abcdabcda"}}`, exp: "ABcdABcda", }, { title: "Template using stringSlice", in: `{{ with .GroupLabels }}{{ with .Remove (stringSlice "key1" "key3") }}{{ .SortedPairs.Values }}{{ end }}{{ end }}`, data: Data{ GroupLabels: KV{ "key1": "key1", "key2": "key2", "key3": "key3", "key4": "key4", }, }, exp: "[key2 key4]", }, } { tc := tc t.Run(tc.title, func(t testing.T) { f := tmpl.ExecuteTextString if tc.html { f = tmpl.ExecuteHTMLString } got, err := f(tc.in, tc.data) if tc.fail { require.Error(t, err) return } require.NoError(t, err) require.Equal(t, tc.exp, got) }) } } func TestTemplateExpansionWithOptions(t testing.T) { testOptionWithAdditionalFuncs := func(funcs FuncMap) Option { return func(text tmpltext.Template, html tmplhtml.Template) { text.Funcs(tmpltext.FuncMap(funcs)) html.Funcs(tmplhtml.FuncMap(funcs)) } } for _, tc := range []struct { options []Option title string in string data interface{} html bool exp string fail bool }{ { title: "Test custom function", options: []Option{testOptionWithAdditionalFuncs(FuncMap{"printFoo": func() string { return "foo" }})}, in: `{{ printFoo }}`, exp: "foo", }, { title: "Test Default function with additional function added", options: []Option{testOptionWithAdditionalFuncs(FuncMap{"printFoo": func() string { return "foo" }})}, in: `{{ toUpper "test" }}`, exp: "TEST", }, { title: "Test custom function is overridden by the DefaultFuncs", options: []Option{testOptionWithAdditionalFuncs(FuncMap{"toUpper": func(s string) string { return "foo" }})}, in: `{{ toUpper "test" }}`, exp: "TEST", }, { title: "Test later Option overrides the previous", options: []Option{ testOptionWithAdditionalFuncs(FuncMap{"printFoo": func() string { return "foo" }}), testOptionWithAdditionalFuncs(FuncMap{"printFoo": func() string { return "bar" }}), }, in: `{{ printFoo }}`, exp: "bar", }, } { tc := tc t.Run(tc.title, func(t testing.T) { tmpl, err := FromGlobs([]string{}, tc.options...) require.NoError(t, err) f := tmpl.ExecuteTextString if tc.html { f = tmpl.ExecuteHTMLString } got, err := f(tc.in, tc.data) if tc.fail { require.Error(t, err) return } require.NoError(t, err) require.Equal(t, tc.exp, got) }) } } // This test asserts that template functions are thread-safe. func TestTemplateFuncs(t testing.T) { tmpl, err := FromGlobs([]string{}) require.NoError(t, err) for _, tc := range []struct { title string in string data interface{} exp string expErr string }{{ title: "Template using toUpper", in: `{{ "abc" \| toUpper }}`, exp: "ABC", }, { title: "Template using toLower", in: `{{ "ABC" \| toLower }}`, exp: "abc", }, { title: "Template using title", in: `{{ "abc" \| title }}`, exp: "Abc", }, { title: "Template using trimSpace", in: `{{ " abc " \| trimSpace }}`, exp: "abc", }, { title: "Template using join", in: `{{ . \| join "," }}`, data: []string{"abc", "def"}, exp: "abc,def", }, { title: "Template using match", in: `{{ match "[a-z]+" "abc" }}`, exp: "true", }, { title: "Template using reReplaceAll", in: `{{ reReplaceAll "ab" "AB" "abc" }}`, exp: "ABc", }, { title: "Template using date", in: `{{ . \| date "2006-01-02" }}`, data: time.Date(2024, 1, 1, 8, 15, 30, 0, time.UTC), exp: "2024-01-01", }, { title: "Template using tz", in: `{{ . \| tz "Europe/Paris" }}`, data: time.Date(2024, 1, 1, 8, 15, 30, 0, time.UTC), exp: "2024-01-01 09:15:30 +0100 CET", }, { title: "Template using invalid tz", in: `{{ . \| tz "Invalid/Timezone" }}`, data: time.Date(2024, 1, 1, 8, 15, 30, 0, time.UTC), expErr: "template: :1:7: executing \"\" at <tz \"Invalid/Timezone\">: error calling tz: unknown time zone Invalid/Timezone", }, { title: "Template using HumanizeDuration - seconds - float64", in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}", data: []float64{0, 1, 60, 3600, 86400, 86400 + 3600, -(864002 + 36003 + 604 + 5), 899.99}, exp: "0s:1s:1m 0s:1h 0m 0s:1d 0h 0m 0s:1d 1h 0m 0s:-2d 3h 4m 5s:14m 59s:", }, { title: "Template using HumanizeDuration - seconds - string.", in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}", data: []string{"0", "1", "60", "3600", "86400"}, exp: "0s:1s:1m 0s:1h 0m 0s:1d 0h 0m 0s:", }, { title: "Template using HumanizeDuration - subsecond and fractional seconds - float64.", in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}", data: []float64{.1, .0001, .12345, 60.1, 60.5, 1.2345, 12.345}, exp: "100ms:100us:123.5ms:1m 0s:1m 0s:1.234s:12.35s:", }, { title: "Template using HumanizeDuration - subsecond and fractional seconds - string.", in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}", data: []string{".1", ".0001", ".12345", "60.1", "60.5", "1.2345", "12.345"}, exp: "100ms:100us:123.5ms:1m 0s:1m 0s:1.234s:12.35s:", }, { title: "Template using HumanizeDuration - string with error.", in: `{{ humanizeDuration "one" }}`, expErr: "template: :1:3: executing \"\" at <humanizeDuration \"one\">: error calling humanizeDuration: strconv.ParseFloat: parsing \"one\": invalid syntax", }, { title: "Template using HumanizeDuration - int.", in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}", data: []int{0, -1, 1, 1234567}, exp: "0s:-1s:1s:14d 6h 56m 7s:", }, { title: "Template using HumanizeDuration - uint.", in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}", data: []uint{0, 1, 1234567}, exp: "0s:1s:14d 6h 56m 7s:", }, { title: "Template using since", in: "{{ . \| since \| humanizeDuration }}", data: time.Now().Add(-1 time.Hour), exp: "1h 0m 0s", }} { tc := tc t.Run(tc.title, func(t *testing.T) { wg := sync.WaitGroup{} for i := 0; i < 10; i++ { wg.Add(1) go func() { defer wg.Done() got, err := tmpl.ExecuteTextString(tc.in, tc.data) if tc.expErr == "" { require.NoError(t, err) require.Equal(t, tc.exp, got) } else { require.EqualError(t, err, tc.expErr) require.Empty(t, got) } }() } wg.Wait() }) } }	15.38 KB	2025-05-25 12:27

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