okd/roles/openshift_prometheus/tasks/uninstall_prometheus.yaml

---

- name: Remove node_exporter daemon set
  oc_obj:
    state: absent
    name: "prometheus-node-exporter"
    namespace: "{{ openshift_prometheus_namespace }}"
    kind: daemonset

- name: Remove node_exporter services
  oc_service:
    state: absent
    name: "prometheus-node-exporter"
    namespace: "{{ openshift_prometheus_namespace }}"

- name: Remove prometheus stateful set
  oc_obj:
    state: absent
    name: "prometheus"
    namespace: "{{ openshift_prometheus_namespace }}"
    kind: statefulset

- name: Remove prometheus configmaps
  oc_configmap:
    state: absent
    name: "{{ item }}"
    namespace: "{{ openshift_prometheus_namespace }}"
  with_items:
    - "prometheus"
    - "alertmanager"

- name: Remove prometheus PVCs
  oc_pvc:
    namespace: "{{ openshift_prometheus_namespace }}"
    name: "{{ item }}"
    state: absent
  with_items:
    - "{{ openshift_prometheus_pvc_name }}"
    - "{{ openshift_prometheus_alertmanager_pvc_name }}"
    - "{{ openshift_prometheus_alertbuffer_pvc_name }}"

- name: Remove prometheus and alerts routes
  oc_route:
    state: absent
    name: "{{ item.name }}"
    namespace: "{{ openshift_prometheus_namespace }}"
  with_items:
    - name: prometheus
    - name: alerts
    - name: alertmanager

- name: Remove services for prometheus
  oc_service:
    state: absent
    name: "{{ item }}"
    namespace: "{{ openshift_prometheus_namespace }}"
  with_items:
    - "{{ openshift_prometheus_service_name }}"
    - "{{ openshift_prometheus_alertmanager_service_name }}"
    - "{{ openshift_prometheus_alerts_service_name }}"

- name: Remove prometheus secrets
  oc_secret:
    state: absent
    name: "{{ item }}-proxy"
    namespace: "{{ openshift_prometheus_namespace }}"
  with_items:
    - prometheus
    - alerts
    - alertmanager

- name: Remove prometheus serviceaccounts
  oc_serviceaccount:
    state: absent
    name: "{{ item }}"
    namespace: "{{ openshift_prometheus_namespace }}"
  with_items:
    - "{{ openshift_prometheus_service_name }}"
    - "{{ openshift_prometheus_reader_serviceaccount_name }}"
    - prometheus-node-exporter

# Check for any remaining objects in the namespace
- name: Get all objects in prometheus namespace
  oc_obj:
    state: list
    kind: all
    namespace: "{{ openshift_prometheus_namespace }}"
  register: __prometheus_namespace_objects

- name: Set prometheus objects facts
  set_fact:
    num_prometheus_objects: "{{ __prometheus_namespace_objects['results']['results'][0]['items'] | length }}"

# If there are no remaining objects then it should be safe to delete
# the clusterrole and the project/namespace
- name: delete router-metrics cluster role
  oc_obj:
    state: absent
    kind: clusterrole
    name: router-metrics
  when: num_prometheus_objects | int == 0

- name: Remove prometheus project
  oc_project:
    state: absent
    name: "{{ openshift_prometheus_namespace }}"
  when: num_prometheus_objects | int == 0