Alerting: Image renderer screenshots cannot be used in custom templates

[Desolar1um]

What happened?

Using a custom alerting notification template for E-mail does not include image renderer screenshots

Example default template output:

Example custom template output:

What did you expect to happen?

Alert emails include panel screenshots

Did this work before?

No

How do we reproduce it?

1. Set up image renderer as a separate docker container
2. Create custom alert template
3. Create an alert panel and trigger an alert

Is the bug inside a dashboard panel?

No response

Environment (with versions)?

Grafana: v10.3.3 On K8s

Grafana platform?

Kubernetes

Datasource(s)?

No response

[tonypowa]

hi @Desolar1um

Could you please provide the custom template you are using (with any sensitive information redacted)?

Thank you

[Desolar1um]

Hello @tonypowa, Thanks for your time. I've included my current template below

{{- define "email.message_alert" -}}

{{ .Labels.alertname }}

{{ range .Annotations.SortedPairs }}
{{ .Name }}:
{{ .Value }}
{{ end }}
{{- end -}}

{{ define "email.message" }}

{{ if .Alerts.Firing -}}
{{ len .Alerts.Firing }} Firing
{{- range .Alerts.Firing }}
- {{ template "email.message_alert" . }}

Annotations:
{{ range .Annotations.SortedPairs }}- {{ .Name }} = {{ .Value }}
{{ end }}{{ if gt (len .SilenceURL) 0 }}- Silence: {{ .SilenceURL }}
{{ end }}{{ if gt (len .DashboardURL) 0 }}- Dashboard: {{ .DashboardURL }}
{{ end }}{{ if gt (len .PanelURL) 0 }}- Panel: {{ .PanelURL }}
{{ end }}{{ if gt (len .Annotations.alertUid) 0 }}- Alert: https://<redacted>/alerting/grafana/{{ .Annotations.alertUid }}/view?returnTo=%2Falerting%2Flist
{{ end }}
{{- end }}
{{- end }}

{{ if .Alerts.Resolved -}}
{{ len .Alerts.Resolved }} Resolved
{{- range .Alerts.Resolved }} {{ template "email.message_alert" . }}
Annotations:
{{ range .Annotations.SortedPairs }}- {{ .Name }} = {{ .Value }}
{{ end }}{{ if gt (len .SilenceURL) 0 }}- Silence: {{ .SilenceURL }}
{{ end }}{{ if gt (len .DashboardURL) 0 }}- Dashboard: {{ .DashboardURL }}
{{ end }}{{ if gt (len .PanelURL) 0 }}- Panel: {{ .PanelURL }}
{{ end }}{{ if gt (len .Annotations.alertUid) 0 }}- Alert: https://<redacted>/alerting/grafana/{{ .Annotations.alertUid }}/view?returnTo=%2Falerting%2Flist
{{ end }}
{{- end }}
{{- end }}

{{ end }}

[Desolar1um]

Any finding here? @tonypowa

[Desolar1um]

Any finding here? @tonypowa

[tonypowa]

Hi @Desolar1um The issue is already added to the team's board Thank you your patience