Compute Engine - Delete Instance Templates with Wrong Settings

Custodian can delete Instance Templates whose settings do not match the requirements.

In the example below, the policy checks if there are instance templates whose machineType setting is among the disallowed-machine-types.

vars:
  # See https://cloud.google.com/compute/docs/machine-types
  disallowed-machine-types: &disallowed-machine-types
    - "f1-micro"
    - "g1-small"
    - "n1-highcpu-32"
    - "n1-highcpu-64"
    - "n1-highcpu-96"

policies:
  - name: gcp-instance-template-delete-disallowed-machine-types
    resource: gcp.instance-template
    filters:
      - type: value
        key: properties.machineType
        op: in
        value: *disallowed-machine-types
    actions:
      - type: delete