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prometheusgo-templatesprometheus-alertmanager

How to remove labels in Prometheus Alert template?

I found a template for Prometheus Alert Manager for alerts, but I receive many unnecessary labels in notification. How to remove labels in template? This code is responsible for labels (look below). I tried to set conditions in If operator, but it didnt help. I dont have deep knowledge in Go Templating system & Json, so I'm asking for help. I use Amazon Prometheus.

{{ if gt (len $alerts.Labels.SortedPairs) 0 -}},
"labels": 
    {{ "{" }}
        {{ range $index, $label := $alerts.Labels.SortedPairs }}
            {{ if $index }}, 
            {{ end }}
            "{{ $label.Name }}": "{{ $label.Value }}"
        {{ end }}
    {{ "}" }}
{{- end }}
Solution

  • As seen here, you can filter labels by name something like this.

        {{- range .CommonLabels.SortedPairs -}}
        {{- if ne .Name "alertname" -}}
            {{- .Name }}%3D"{{- .Value -}}"%2C%20
        {{- end -}}
    {{- end -}}