Slack

If you want to enable Slack, provide either a webhook URL or a bot token with channel.

Webhook mode:

Parameter	Description	Required
alert.slack.webhook	Slack webhook URL	Yes
alert.slack.channel	📢 Override channel	No
alert.slack.title	✏️ Custom title	No
alert.slack.text	✏️ Custom text	No
alert.slack.compact	📏 Single-line mode	No

Bot Token mode:

Parameter	Description	Required
alert.slack.token	Slack bot token (xoxb-...)	Yes
alert.slack.channel	📢 Channel to post to	Yes
alert.slack.title	✏️ Custom title	No
alert.slack.text	✏️ Custom text	No
alert.slack.compact	📏 Single-line mode	No

💡 Pro tip: When using bot token mode, alerts become threaded conversations — root message on first alert, updates as replies. Clean and organized! 🧹

Compact mode

alert:
  slack:
    webhook: "https://hooks.slack.com/..."
    compact: true

Routing & Retry

alert:
  slack:
    webhook: "https://hooks.slack.com/..."
    routes:
      - namespaces: ["production"]
        severities: ["high", "critical"]
    retry:
      maxAttempts: 3
      delay: 5s

Fallback provider

alert:
  slack:
    webhook: "https://hooks.slack.com/..."
    fallback: "pagerduty"
    retry:
      maxAttempts: 3

Example (Webhook)

apiVersion: v1
kind: Namespace
metadata:
  name: kwatch
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: kwatch
  namespace: kwatch
data:
  config.yaml: |
    alert:
      slack:
        webhook: WEBHOOK_URL
        title: "optional customized title"
        text: "optional customized text"

Example (Bot Token)

apiVersion: v1
kind: Namespace
metadata:
  name: kwatch
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: kwatch
  namespace: kwatch
data:
  config.yaml: |
    alert:
      slack:
        token: xoxb-your-token
        channel: "#alerts"
        title: "optional customized title"
        text: "optional customized text"

Screenshot