[backport/2.2] Move integration test suite from molecule to ansible-test (#392) (#457)

[backport/2.2] Move integration test suite from molecule to ansible-test (#392)

Move integration test suite from molecule to ansible-test
SUMMARY
molecule has been replaced with ansible-test
some test cases have been updated
k8s_apply : remove duplicated tasks increasing the running time of the test
helm: use different namespaces for different test cases in order to wait for the namespace deletion before moving to the next test.
all: remove wait: yes at the end of each test when deleting namespace, the role used to create namespace will ensure that it is deleted before if existing.
ISSUE TYPE
Feature Pull Request
COMPONENT NAME
integration testing
Reviewed-by: Mike Graves mgraves@redhat.com
Reviewed-by: Gonéri Le Bouder goneri@lebouder.net
Reviewed-by: None 
(cherry picked from commit fd61f8b)
SUMMARY


ISSUE TYPE


Bugfix Pull Request
Docs Pull Request
Feature Pull Request
New Module Pull Request

COMPONENT NAME

ADDITIONAL INFORMATION

tests/integration/targets/inventory_k8s/aliases

@@ -0,0 +1,3 @@
+context/target
+time=42
+k8s

tests/integration/targets/inventory_k8s/playbooks/play.yml

@@ -0,0 +1,102 @@
+---
+- name: Converge
+  hosts: localhost
+  connection: local
+
+  collections:
+    - kubernetes.core
+
+  vars_files:
+    - vars/main.yml
+
+  tasks:
+    - name: Delete existing namespace
+      k8s:
+        api_version: v1
+        kind: Namespace
+        name: inventory
+        wait: yes
+        state: absent
+
+    - name: Ensure namespace exists
+      k8s:
+        api_version: v1
+        kind: Namespace
+        name: inventory
+
+    - name: Add a deployment
+      k8s:
+        definition:
+          apiVersion: apps/v1
+          kind: Deployment
+          metadata:
+            name: inventory
+            namespace: inventory
+          spec:
+            replicas: 1
+            selector:
+              matchLabels:
+                app: "{{ k8s_pod_name }}"
+            template: "{{ k8s_pod_template }}"
+        wait: yes
+        wait_timeout: 400
+      vars:
+        k8s_pod_name: inventory
+        k8s_pod_image: python
+        k8s_pod_command:
+          - python
+          - '-m'
+          - http.server
+        k8s_pod_env:
+          - name: TEST
+            value: test
+
+    - meta: refresh_inventory
+
+- name: Verify inventory and connection plugins
+  hosts: namespace_inventory_pods
+  gather_facts: no
+
+  vars:
+    file_content: |
+      Hello world
+
+  tasks:
+    - name: End play if host not running (TODO should we not add these to the inventory?)
+      meta: end_host
+      when: pod_phase != "Running"
+
+    - debug: var=hostvars
+    - setup:
+
+    - debug: var=ansible_facts
+
+    - name: Assert the TEST environment variable was retrieved
+      assert:
+        that: ansible_facts.env.TEST == 'test'
+
+    - name: Copy a file into the host
+      copy:
+        content: '{{ file_content }}'
+        dest: /tmp/test_file
+
+    - name: Retrieve the file from the host
+      slurp:
+        src: /tmp/test_file
+      register: slurped_file
+
+    - name: Assert the file content matches expectations
+      assert:
+        that: (slurped_file.content|b64decode) == file_content
+
+- name: Delete inventory namespace
+  hosts: localhost
+  connection: local
+  gather_facts: no
+  tasks:
+    - name: Remove inventory namespace
+      k8s:
+        api_version: v1
+        kind: Namespace
+        name: inventory
+        state: absent

tests/integration/targets/inventory_k8s/playbooks/test.inventory_k8s.yml

@@ -0,0 +1,2 @@
+---
+plugin: kubernetes.core.k8s

tests/integration/targets/inventory_k8s/playbooks/vars/main.yml

@@ -0,0 +1,38 @@
+---
+k8s_pod_metadata:
+  labels:
+    app: "{{ k8s_pod_name }}"
+
+k8s_pod_spec:
+  serviceAccount: "{{ k8s_pod_service_account }}"
+  containers:
+    - image: "{{ k8s_pod_image }}"
+      imagePullPolicy: Always
+      name: "{{ k8s_pod_name }}"
+      command: "{{ k8s_pod_command }}"
+      readinessProbe:
+        initialDelaySeconds: 15
+        exec:
+          command:
+            - /bin/true
+      resources: "{{ k8s_pod_resources }}"
+      ports: "{{ k8s_pod_ports }}"
+      env: "{{ k8s_pod_env }}"
+
+
+k8s_pod_service_account: default
+
+k8s_pod_resources:
+  limits:
+    cpu: "100m"
+    memory: "100Mi"
+
+k8s_pod_command: []
+
+k8s_pod_ports: []
+
+k8s_pod_env: []
+
+k8s_pod_template:
+  metadata: "{{ k8s_pod_metadata }}"
+  spec: "{{ k8s_pod_spec }}"

tests/integration/targets/inventory_k8s/runme.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+set -eux
+
+export ANSIBLE_INVENTORY_ENABLED=kubernetes.core.k8s,yaml
+export ANSIBLE_PYTHON_INTERPRETER=auto_silent
+
+ansible-playbook playbooks/play.yml -i playbooks/test.inventory_k8s.yml "$@"