Template data

Tue, 10 Mar 2026 12:41:07 +0100

Template data is passed on to message templates as well as sent as payload to webhook pushes.

Name	Type	Notes
Receiver	string	Name of the contact point that the notification is being sent to.
Status	string	`firing` if at least one alert is firing, otherwise `resolved`.
Alerts	Alert	List of alert objects that are included in this notification (see below).
GroupLabels	KeyValue	Labels these alerts were grouped by.
CommonLabels	KeyValue	Labels common to all the alerts included in this notification.
CommonAnnotations	KeyValue	Annotations common to all the alerts included in this notification.
ExternalURL	string	Back link to the Grafana that sent the notification. If using external Alertmanager, back link to this Alertmanager.

The Alerts type exposes functions for filtering alerts:

Alert

Name	Type	Notes
Status	string	`firing` or `resolved`.
Labels	KeyValue	A set of labels attached to the alert.
Annotations	KeyValue	A set of annotations attached to the alert.
StartsAt	time.Time	Time the alert started firing.
EndsAt	time.Time	Only set if the end time of an alert is known. Otherwise set to a configurable timeout period from the time since the last alert was received.
GeneratorURL	string	A back link to Grafana or external Alertmanager.
SilenceURL	string	Link to grafana silence for with labels for this alert pre-filled. Only for Grafana managed alerts.
DashboardURL	string	Link to grafana dashboard, if alert rule belongs to one. Only for Grafana managed alerts.
PanelURL	string	Link to grafana dashboard panel, if alert rule belongs to one. Only for Grafana managed alerts.
Fingerprint	string	Fingerprint that can be used to identify the alert.
ValueString	string	A string that contains the labels and value of each reduced expression in the alert.

KeyValue is a set of key/value string pairs that represent labels and annotations.

Here is an example containing two annotations:

{
  "summary": "alert summary",
  "description": "alert description"
}

In addition to direct access of data (labels and annotations) stored as KeyValue, there are also methods for sorting, removing and transforming.

Name	Arguments	Returns	Notes
SortedPairs		Sorted list of key & value string pairs
Remove	[]string	KeyValue	Returns a copy of the Key/Value map without the given keys.
Names		[]string	List of label names
Values		[]string	List of label values

Some functions to transform values are also available, along with default functions provided by Go templating.

Name	Arguments	Returns
title	string	Capitalizes first character of each word.
toUpper	string	Converts all characters to upper case.
match	pattern, string	Match a string using RegExp.
reReplaceAll	pattern, replacement, string	RegExp substitution, unanchored.
join	string, []string	Concatenates the elements of the second argument to create a single string. First argument is the separator.
safeHtml	string	Marks string as HTML, not requiring auto-escaping.
stringSlice	…string	Returns passed strings as slice of strings.