Event Triggers

Playbook events are triggers that cause a Playbook to run. Events are triggered when specific activity on Mission Control occurs. For example: you can trigger a Playbook to run when a component goes unhealthy.

Multiple playbooks could be listening to the same event and likewise a playbook can be listening to multiple events. If a playbook is listening on multiple events then it is triggered when any of those events occur.

Filters can give you fine-grained control over the events that can trigger the playbook.

Field	Description	Scheme
event	Initial delay before the checks are run	Event
filter		CEL
labels	Labels specifies the key-value pairs that the associated event's resource must match.	[map[string]string]

Types

Canary events

Canary events relate to activities on health checks.

Event	Description
passed	When a previously failed check passes
failed	When a previously passed check fails

Example

notify-passing-http-checks.yaml
apiVersion: mission-control.flanksource.com/v1
kind: Playbook
metadata:
  name: notify-passing-http-checks
spec:
  description: Notify when any HTTP check passes
  on:
    canary:
      - event: passed
        filter: check.type == 'http'
  actions:
    - name: Send notification
      notification:
        connection: connection://telegram/playbook-alerts
        title: 'Check {{.check.name}} has passed'
        message: 'Description: {{.check.description}}'

notify-unhealthy-database-component.yaml
apiVersion: mission-control.flanksource.com/v1
kind: Playbook
metadata:
  name: notify-unhealthy-database-component
spec:
  description: Notify when a database component goes unhealthy
  on:
    component:
      - event: unhealthy
        filter: component.type == 'database'
        labels:
          env: production
  actions:
    - name: Send notification
      notification:
        connection: connection://telegram/playbook-alerts
        title: 'Database {{.component.name}} has become unhealthy'
        message: 'Description: {{.component.description}}'

Config events

Config events relate to activities on config items.

Event	Description
created	when a config item is created
updated	when a config item is updated
deleted	when a config item is deleted

notify-newly-scraped-pod.yaml
apiVersion: mission-control.flanksource.com/v1
kind: Playbook
metadata:
  name: Notify on pod config creation
spec:
  description: Notify when a new pod is discovered
  on:
    component:
      - event: config.created
        filter: config.class == 'Pod'
  actions:
    - name: Send notification
      notification:
        connection: connection://telegram/playbook-alerts
        title: 'A new kubernetes pod {{.config.name}} was scraped'
        message: 'Namespace: {{.config.namespace}}'