Example config for alertmanager-ntfy with custom templating

config.example.yaml

http:
  addr: :8000
  auth:
    username: "alertmanager"
    password: "verysecure"
ntfy:
  baseurl: https://ntfy.sh
  auth:
    username: "admin"
    password: "verysecure"
    # Token authentication is also available
    # token: <token>
  notification:
    # The topic can either be a hardcoded string or a gval expression that evaluates to a string
    topic: alertmanager
    # Priority reference: https://docs.ntfy.sh/publish/#message-priority
    # Can either be a hardcoded string or a gval expression that evaluates to a string
    priority: |
      status == "firing" ? (labels["severity"] == "critical" ? "high" : "default") : "low"
    tags:
      # Tags with no condition are always included
      # Emoji shortcode reference: https://docs.ntfy.sh/emojis/
      - tag: "+1"
        condition: status == "resolved"
      - tag: rotating_light
        condition: status == "firing" && labels["severity"] == "critical"
      - tag: warning
        condition: status == "firing" && labels["severity"] != "critical"
    templates:
      title: |
        {{ if eq .Status "resolved" }}Resolved: {{ end }}{{ index .Annotations "summary" }}
      description: |
        {{ index .Annotations "description" }}
      headers:
        X-Actions: |
          view, View, {{ .GeneratorURL }};
          view, Silence, https://alertmanager.example.com/#/silences/new?filter=
            {{- `{` -}}
            {{- $first := true -}}
            {{- range $key, $value := .Labels -}}
              {{- if $first }}{{ $first = false }}{{ else }}{{ urlquery "," }}{{ end -}}
              {{ $key }}%3D%22{{ $value }}%22
            {{- end -}}
            {{- `}` -}}
            &comment=created via ntfy