streams-bf-lab-materials/playbooks/roles/remove-operators/tasks/main.yml

---
# Ensures all the operator artifacts are created and waits for CSV to succeed.
#
# The following variables must exist:
#
#   removed_operators:    a list of below dictionaries
#     - sub_nspc          subscription namespace
#       sub_name          subscription name
#       csv_name          CSV name to check for
#       pre_cleanup       pre-cleanup tasks, a list rtypes to remove (ALL)
#         - apiv
#           kind
#       add_cleanup       additional CRDs to remove post-uninstall, a list
#
# This role must then be applied as:
#
#   - include_role:
#       name: remove-operators
#     vars:
#       - role: "{{ item }}"
#     loop: "{{ removed_operators }}"
#
- name: Remove any of the resources found
  k8s:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: "{{ item.apiv }}"
    kind: "{{ item.kind }}"
    delete_all: true
    state: absent
  loop: "{{ role.pre_cleanup }}"
  register: removed

- name: Remove the subscription
  k8s:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: operators.coreos.com/v1alpha1
    kind: subscription
    name: "{{ role.sub_name }}"
    namespace: "{{ role.sub_nspc }}"
    state: absent

- name: Do post-cleanup
  k8s:
    kubeconfig: tmp/kubeconfig-ocp4
    validate_certs: no
    api_version: apiextensions.k8s.io/v1
    kind: customresourcedefinition
    name: "{{ item }}"
    state: absent
  loop: "{{ role.add_cleanup }}"

...