kubernetes.core/molecule/default/tasks/lookup_k8s.yml

---
- block:
    - set_fact:
        pre_test1: "{{ lookup('kubernetes.core.k8s', kind='Namespace', label_selector='namespace_label=app_development') }}"
        pre_test2: "{{ lookup('kubernetes.core.k8s', kind='Namespace', resource_name='app-development-one') }}"
        pre_test3: "{{ query('kubernetes.core.k8s', kind='Namespace', label_selector='namespace_label=app_development') }}"
        pre_test4: "{{ query('kubernetes.core.k8s', kind='Namespace', resource_name='app-development-one') }}"

    # https://github.com/ansible-collections/kubernetes.core/issues/147
    - name: Create a namespace with label
      kubernetes.core.k8s:
        definition:
          apiVersion: v1
          kind: Namespace
          metadata:
            name: "app-development-one"
            labels:
              namespace_label: "app_development"

    - set_fact:
        test1: "{{ lookup('kubernetes.core.k8s', kind='Namespace', label_selector='namespace_label=app_development', wantlist=True) }}"
        test2: "{{ query('kubernetes.core.k8s', kind='Namespace', label_selector='namespace_label=app_development') }}"
        test3: "{{ lookup('kubernetes.core.k8s', kind='Namespace', resource_name='app-development-one', wantlist=True) }}"
        test4: "{{ query('kubernetes.core.k8s', kind='Namespace', resource_name='app-development-one') }}"
        test5: "{{ lookup('kubernetes.core.k8s', kind='Namespace', label_selector='namespace_label=app_development') }}"
        test6: "{{ lookup('kubernetes.core.k8s', kind='Namespace', resource_name='app-development-one') }}"
        test7: "{{ lookup('kubernetes.core.k8s', kind='Ingress', api_version='networking.k8s.io/vINVALID', errors='ignore') }}"

    - set_fact:
        test8: "{{ lookup('kubernetes.core.k8s', kind='Ingress', api_version='networking.k8s.io/vINVALID') }}"
      ignore_errors: true

    - name: Assert that every test is passed
      assert:
        that:
          # Before creating object
          - pre_test1 is sequence and pre_test1 is not string
          - pre_test1 | length == 0
          - pre_test2 is sequence and pre_test2 is not string
          - pre_test2 | length == 0
          - pre_test3 is sequence and pre_test3 is not string
          - pre_test3 | length == 0
          - pre_test4 is sequence and pre_test4 is not string
          - pre_test4 | length == 0
          # After creating object
          - test1 is sequence and test1 is not string
          - test1 | length == 1
          - test2 is sequence and test2 is not string
          - test2 | length == 1
          - test3 is sequence and test3 is not string
          - test3 | length == 1
          - test4 is sequence and test4 is not string
          - test4 | length == 1
          # Without wantlist=True lookup should return mapping
          - test5 is mapping
          - test6 is mapping
          # errors='ignore'
          - test7 is string
          - test8 is not defined

    - name: Create another namespace with label
      kubernetes.core.k8s:
        definition:
          apiVersion: v1
          kind: Namespace
          metadata:
            name: "app-development-two"
            labels:
              namespace_label: "app_development"

    - set_fact:
        test1: "{{ lookup('kubernetes.core.k8s', kind='Namespace', label_selector='namespace_label=app_development', wantlist=True) }}"
        test2: "{{ query('kubernetes.core.k8s', kind='Namespace', label_selector='namespace_label=app_development') }}"
        test3: "{{ lookup('kubernetes.core.k8s', kind='Namespace', resource_name='app-development-one', wantlist=True) }}"
        test4: "{{ query('kubernetes.core.k8s', kind='Namespace', resource_name='app-development-one') }}"
        test5: "{{ lookup('kubernetes.core.k8s', kind='Namespace', resource_name='app-development-two', wantlist=True) }}"
        test6: "{{ query('kubernetes.core.k8s', kind='Namespace', resource_name='app-development-two') }}"
        test7: "{{ lookup('kubernetes.core.k8s', kind='Namespace', label_selector='namespace_label=app_development') }}"
        test8: "{{ lookup('kubernetes.core.k8s', kind='Namespace', resource_name='app-development-one') }}"
        test9: "{{ lookup('kubernetes.core.k8s', kind='Namespace', resource_name='app-development-two') }}"

    - name: Assert that every test is passed after creating second object
      assert:
        that:
          # After creating second object
          - test1 is sequence and test1 is not string
          - test1 | length == 2
          - test2 is sequence and test2 is not string
          - test2 | length == 2
          - test3 is sequence and test3 is not string
          - test3 | length == 1
          - test4 is sequence and test4 is not string
          - test4 | length == 1
          - test5 is sequence and test5 is not string
          - test5 | length == 1
          - test6 is sequence and test6 is not string
          - test6 | length == 1
          # When label_selector is used it returns list irrespective of wantlist=True
          - test7 is sequence and test7 is not string
          # Without wantlist=True lookup should return mapping
          - test8 is mapping
          - test9 is mapping

  always:
    - name: Ensure that namespace is removed
      k8s:
        kind: Namespace
        name: "app-development-{{ item }}"
        state: absent
      with_items:
        - one
        - two