aws.transit-gateway

Filters

• config-compliance

• event

• finding

• flow-logs

• json-diff

• list-item

• marked-for-op

• ops-item

• reduce

• tag-count

• value

json-diff

Compute the diff from the current resource to a previous version.

A resource matches the filter if a diff exists between the current resource and the selected revision.

Utilizes config as a resource revision database.

Revisions can be selected by date, against the previous version, and against a locked version (requires use of is-locked filter).

properties:
  selector:
    enum:
    - previous
    - date
    - locked
  selector_value:
    type: string
  type:
    enum:
    - json-diff
required:
- type

Permissions - config:GetResourceConfigHistory

Actions

• auto-tag-user

• copy-related-tag

• invoke-lambda

• invoke-sfn

• mark-for-op

• normalize-tag

• notify

• post-finding

• post-item

• put-metric

• remove-tag

• rename-tag

• set-flow-log

• tag

• tag-trim

• webhook

set-flow-log

Set flow logs for a network resource

example:

policies:
  - name: vpc-enable-flow-logs
    resource: vpc
    filters:
      - type: flow-logs
        enabled: false
    actions:
      - type: set-flow-log
        attrs:
          DeliverLogsPermissionArn: arn:iam:role
          LogGroupName: /custodian/vpc/flowlogs/

attrs are passed through to create_flow_log and are per the api documentation

https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/ec2/client/create_flow_logs.html

properties:
  DeliverLogsPermissionArn:
    type: string
  LogDestination:
    type: string
  LogDestinationType:
    enum:
    - s3
    - cloud-watch-logs
  LogFormat:
    type: string
  LogGroupName:
    type: string
  MaxAggregationInterval:
    type: integer
  TrafficType:
    enum:
    - ACCEPT
    - REJECT
    - ALL
    type: string
  attrs:
    type: object
  state:
    type: boolean
  type:
    enum:
    - set-flow-log
required:
- type

Permissions - ec2:CreateFlowLogs, logs:CreateLogGroup