Grafana alert template to display message (alert) in slack

slack.tmpl

{{ define "alert_severity_prefix_emoji" -}}
	{{- if ne .Status "firing" -}}
		:white_check_mark:
	{{- else if eq .CommonLabels.severity "critical" -}}
		:red_circle:
	{{- else if eq .CommonLabels.severity "warning" -}}
		:warning:
	{{- end -}}
{{- end -}}


{{ define "slack.title" -}}
	{{ template "alert_severity_prefix_emoji" . }} 
	[{{- .Status | toUpper -}}{{- if eq .Status "firing" }} x {{ .Alerts.Firing | len -}}{{- end }}  | {{ .CommonLabels.env | toUpper -}} ] ||  {{ .CommonLabels.alertname -}}
{{- end -}}

{{- define "slack.text" -}}
{{- range .Alerts -}}
{{ if gt (len .Annotations) 0 }}
*Summary*: {{ .Annotations.summary}}
*Description*: {{ .Annotations.description }}
Labels: 
{{ range .Labels.SortedPairs }}{{ if or (eq .Name "env") (eq .Name "instance") }}• {{ .Name }}: `{{ .Value }}`
{{ end }}{{ end }}
{{ end }}
{{ end }}
{{ end }}