chat.tmpl

# This builds the silence URL.  We exclude the alertname in the range
# to avoid the issue of having trailing comma separator (%2C) at the end
# of the generated URL
{{ define "__alert_silence_link" -}}
    {{ .ExternalURL }}/#/silences/new?filter=%7B
    {{- range .CommonLabels.SortedPairs -}}
        {{- if ne .Name "alertname" -}}
            {{- .Name }}%3D"{{- .Value -}}"%2C%20
        {{- end -}}
    {{- end -}}
    alertname%3D"{{ .CommonLabels.alertname }}"%7D
{{- end }}


{{ define "__alert_severity_prefix" -}}
    {{ if ne .Status "firing" -}}
    :green_apple:
    {{- else if eq .Labels.severity "critical" -}}
    :fire:
    {{- else if eq .Labels.severity "warning" -}}
    :warning:
    {{- else if eq .Labels.severity "medium" -}}
    :warning:
    {{- else if eq .Labels.severity "test" -}}
    :grey_exclamation:
    {{- else -}}
    :question:
    {{- end }}
{{- end }}

{{ define "__alert_severity_prefix_title" -}}
    {{ if ne .Status "firing" -}}
    :green_apple:
    {{- else if eq .Labels.severity "critical" -}}
    :fire:
    {{- else if eq .Labels.severity "warning" -}}
    :warning:
    {{- else if eq .Labels.severity "medium" -}}
    :warning:
    {{- else if eq .Labels.severity "test" -}}
    :grey_exclamation:
    {{- else -}}
    :question:
    {{- end }}
{{- end }}


{{/* First line of Slack alerts */}}
{{ define "slack.default.title" -}}
    Alert: {{ .CommonLabels.alertname }}
{{- end }}


{{/* Color of Slack attachment (appears as line next to alert )*/}}
{{ define "slack.default.color" -}}
    {{ if eq .Status "firing" -}}
        {{ if eq .CommonLabels.severity "test" -}}
            '#808080'
        {{ else if eq .CommonLabels.severity "warning" -}}
            warning
        {{ else if eq .CommonLabels.severity "medium" -}}
            warning
        {{- else if eq .CommonLabels.severity "critical" -}}
            danger
        {{- else -}}
            '#439FE0'
        {{- end -}}
    {{ else -}}
    good
    {{- end }}
{{- end }}


{{/* Emoji to display as user icon (custom emoji supported!) */}}
{{ define "slack.default.icon_emoji" }}:prometheus:{{ end }}

{{ define "slack.default.icon_url" }}https://avatars3.githubusercontent.com/u/3380462{{ end }}

{{/* The text to display in the alert */}}
{{ define "slack.default.text" -}}
    {{ range .Alerts }}
        {{ if eq .Status "firing" -}}
            {{- if .Annotations.message }}- {{ .Annotations.message }}{{- end }}{{- if .Annotations.description }}{{ .Annotations.description }}{{- end }}
        {{- end }}
        {{ if eq .Status "resolved" -}}
            {{- if .Annotations.message }}Resolved: {{ .Annotations.message }}{{- end }}
        {{- end }}
    {{- end }}
{{- end }}

{{- /* If none of the below matches, send to #sd-app-sre-alert-test, and we 
can then assign the expected code_owner to the alert or map the code_owner
to the correct channel */ -}}
{{ define "__get_channel_for_code_owner" -}}
    {{- if eq . "app-sre" -}}
        sd-app-sre-alert
    {{- else if eq . "telemeter" -}}
        forum-monitoring
    {{- else -}}
        sd-app-sre-alert-test
    {{- end -}}
{{- end }}

{{- /* Select the channel based on the code_owner. We only expect to get
into this template function if the code_owners label is present on an alert.
This is to defend against us accidentally breaking the routing logic. */ -}}
{{ define "slack.default.code_owner_channel" -}}
    {{- if .CommonLabels.code_owner }}
        {{ template "__get_channel_for_code_owner" .CommonLabels.code_owner }}
    {{- else -}}
        monitoring
    {{- end }}
{{- end }}

{{ define "slack.default.link_button_text" -}}
    {{- if .CommonAnnotations.link_text -}}
        {{- .CommonAnnotations.link_text -}}
    {{- else -}}
        Link
    {{- end }} :link:
{{- end }}