Grafana-Feishu

Lightweight server to translate Grafana webhook to Feishu card.

Usage

The program needs two environment variables:

• FEISHU_WEBHOOK: (Optional) The web hook URL to push Feishu notifications. Should be something like https://open.feishu.cn/open-apis/bot/v2/hook/a21843-123-123-abc987
• FEISHU_WEBHOOK_BASE: (Optional, has no effect if FEISHU_WEBHOOK is set) Something like https://open.feishu.cn/open-apis/bot/v2/hook (default).
• FEISHU_WEBHOOK_UUID: (Optional, has no effect if FEISHU_WEBHOOK is set) The bot UUID, something like a21843-123-123-abc987. If the bot UUID is not specified, it should be provided in the path. See below for detail.
• WEBHOOK_AUTH: (Optional) The username and password. Should be something like user:password

Here is an example docker compose file:

version: 3
services:
  grafana:
    # ...
  grafana-feishu:
    image: allanchain/grafana-feishu
    container_name: grafana-feishu
    restart: always
    environment:
      - WEBHOOK_AUTH=${WEBHOOK_AUTH}
      - FEISHU_WEBHOOK=${FEISHU_WEBHOOK}
      # Or, instead of FEISHU_WEBHOOK:
      # - FEISHU_WEBHOOK_BASE=${FEISHU_WEBHOOK_BASE}
      # - FEISHU_WEBHOOK_UUID=${FEISHU_WEBHOOK_UUID}

The exposed port is 2387.

After setting up the server, go to Grafana > "Alerting" > "Contact points", add a new contact point with integration as "Webhook". Fill in the URL and credentials.

If the bot UUID is provided in FEISHU_WEBHOOK or FEISHU_WEBHOOK_UUID is set, the URL should be http://grafana-feishu:2387. Otherwise, the URL should be http://grafana-feishu:2387/{botUUID}, where {botUUID} is the UUID of the bot you created in Feishu, i.e. the last part of the bot webhook URL.

By default, the color of the card reflects the alert status, and the card title will be the "summary" annotation, and the content will be the "description" annotation. You can customize the summary and description in alert rules using Go templates. An example:

{{ if $values.B }}{{ if eq $values.C.Value 0.0 }}Resolve {{ end }}alert{{ else }}No data{{ end }}