Application Real-Time Monitoring Service：Sesuaikan templat notifikasi

Email

{
  "Nama peringatan":"{{ .commonLabels.alertname }}
{{if .commonLabels.clustername }}", "Nama kluster":"{{ .commonLabels.clustername }} {{ end }}
{{if eq "app" .commonLabels._aliyun_arms_involvedObject_kind }}", "Nama aplikasi":"{{ .commonLabels._aliyun_arms_involvedObject_name }} {{ end }}",
  "Kebijakan Pemberitahuan":"{{ .dispatchRuleName }}",
  "Waktu pemicu peringatan":"{{ .startTime }}",
  "Isi peringatan":"{{ for .alerts }} {{ .annotations.message }} {{ end }}"
}

Tabel berikut menjelaskan setiap bagian dari templat tersebut.

Contoh output:

{
  "Alert name": "Penggunaan memori kontainer telah melebihi 80%.",
  "Cluster name": "klyz1688-kubernetes-1",
  "Notification policy": "Nama kebijakan pemberitahuan",
  "Alert triggered at": "2023-02-22 07:18:15",
  "Alert content": "Namespace: arms-prom / Pod: kube-state-metrics-ccb59dbff-jljg4 / Container: kube-state-metrics. Penggunaan memori kontainer telah melebihi 80%. Nilai saat ini: 15,52%."
}

SMS dan panggilan telepon

Templat SMS dan panggilan telepon memiliki struktur yang sama dengan templat email tetapi tidak menyertakan tautan detail.

{{ .level }}

Chatbot (DingTalk, Lark, WeCom)

Templat chatbot merender output dalam format Markdown. Dukungan pemformatan bervariasi tergantung platform.

{{ if .newIncidentIn }} (New event) {{end}}
{{if .commonLabels.clustername }}
 >  Cluster name: {{ .commonLabels.clustername }}
 {{ end }}
{{if eq "app" .commonLabels._aliyun_arms_involvedObject_kind }}
 >  Application name: {{ .commonLabels._aliyun_arms_involvedObject_name }}
 {{ end }}
{{ for .alerts }} >  {{ .annotations.message }} {{if .generatorURL }} [Details URL]({{.generatorURL}})  {{end}}{{if .annotations._aliyun_arms_insights_analyze_link }}[<font color='#ff0000'>Root cause</font>]({{ .annotations._aliyun_arms_insights_analyze_link}}){{ end }}{{if  eq "1" .labels._aliyun_arms_denoise_code }} (Important: {{.labels._aliyun_arms_important_reason }}) {{end}}

{{end}}

Dukungan Markdown pada chatbot:

Webhook

{
  "Alert name":"{{ .commonLabels.alertname }}
{{if .commonLabels.clustername }}", "Cluster name":"{{ .commonLabels.clustername }} {{ end }}
{{if eq "app" .commonLabels._aliyun_arms_involvedObject_kind }}", "Application name":"{{ .commonLabels._aliyun_arms_involvedObject_name }} {{ end }}",
  "Notification Policy":"{{ .dispatchRuleName }}",
  "Alert triggered at":"{{ .startTime }}",
  "Alert content":"{{ for .alerts }} {{ .annotations.message }} {{ end }}"
}

Contoh output:

{
  "Alert name": "The memory usage of the container has exceeded 80%.",
  "Cluster name": "klyz1688-kubernetes-1",
  "Notification policy": "Notification policy name",
  "Alert triggered at": "2023-02-22 07:18:15",
  "Alert content": "Namespace: arms-prom / Pod: kube-state-metrics-ccb59dbff-jljg4 / Container: kube-state-metrics. The memory usage of the container has exceeded 80%. Current value: 15.52%."
}

Notasi titik

Titik (.) merepresentasikan cakupan konteks saat ini.

Akses seluruh konteks:

{{ . }}

Output: Mengembalikan semua data dalam konteks alert.

Akses bidang tingkat atas:

{{ .level }}

Output:

error

Akses bidang bersarang:

{{ .commonLabels.alertname }}

Output:

The memory usage of the container has exceeded 80%.

Variabel

Simpan data konteks dalam variabel untuk digunakan kembali.

Menetapkan bidang ke variabel:

{{ $alertname := .commonLabels.alertname }} {{$alertname}}

Output:

The memory usage of the container has exceeded 80%.

Akses elemen array melalui variabel:

{{ $alert0 := index .alerts 0 }} {{$alert0.labels.alertname}}

Output:

The memory usage of the container has exceeded 80%.

Kondisional: if/else

Periksa nilai dengan if. Kondisi dievaluasi sebagai false untuk nilai null, 0, pointer nil, string kosong, dan string dengan panjang nol.

Kondisi sederhana:

{{if eq "warning" .commonLabels.severity }} P3 alert {{ end }}

Output:

P3 alert

if/else:

1

Output:

P2 alert

Perulangan: for

Lakukan iterasi melalui daftar.

Traverse alert dan ambil nama setiap alert:

{{ for .alerts}} {{.labels.alertname}} \n {{end}}

Output:

The memory usage of the container has exceeded 80%.

Perulangan: range

Traverse urutan nilai.

Iterasi bilangan bulat dari 0 hingga 9:

{{ $ran := range 0 10 }} {{ for $ran }} {{.}} {{end}}

Output:

 0 1 2 3 4 5 6 7 8 9

Fungsi index

Ambil elemen spesifik dari array berdasarkan indeks.

Dapatkan event peringatan pertama:

{{ $alert0 := index .alerts 0 }} {{$alert0.labels.alertname}}

Output:

 The memory usage of the container has exceeded 80%.

Fungsi perbandingan

Contoh:

{{if eq "warning" .commonLabels.severity }} P3 alert {{ end }}

Output:

  P3 alert

Operator logika: and, or, not

Gabungkan kondisi menggunakan operator logika.

Contoh:

{{if eq "warning" .commonLabels.severity or eq "warning" .commonLabels.severity }} P3 alert {{ end }}

Output:

  P3 alert

Fungsi bawaan

{{ $alert0 := index .alerts 0 }} {{ printf "%.2f" $alert0.annotations.value }}

  15.52

{{ "0.95332123123124" | humanizePercentage }}

95.33%

{{ "1671074058234" | humanizeDate }}

2022-12-15 11:14:18

{{ len .alerts }}

1