CI: Test modules against different Ansible versions.

Currently, upstream CI test documentation against different Ansible
versions, but playbook tests are only executed with Ansible 2.9 series.
This patch add support for running playbook tests against Ansible 2.9,
ansible-core 2.11, and against latest version of Ansible.

As running all the tests for every PR would take too long, the tests
for every PR use only Anisble 2.9, and are executed on Fedora-latest
and CentOS 7 and 8.

A new pipeline for nightly tests was added, which runs the tests in the
same distros, using Ansible 2.9, latest and Ansible-core 2.11.

molecule/resources/playbooks/prepare-common.yml

@@ -1,7 +1,7 @@
 ---
 # IPA depends on IPv6 and without it dirsrv service won't start.
 - name: Ensure IPv6 is ENABLED
-  sysctl:
+  ansible.posix.sysctl:
     name: "{{ item.name }}"
     value: "{{ item.value }}"
     sysctl_set: yes
@@ -19,14 +19,14 @@
 #   This is needed in some IPA versions in order to get KRA enabled.
 #   See https://pagure.io/freeipa/issue/7906 for more information.
 - name: stat protected_regular
-  stat:
+  ansible.builtin.stat:
     path: /proc/sys/fs/protected_regular
   register: result
 
 - name: Ensure fs.protected_regular is disabled
-  sysctl:
+  ansible.posix.sysctl:
     name: fs.protected_regular
-    value: '0'
+    value: 0
     sysctl_set: yes
     state: present
     reload: yes

molecule/resources/playbooks/prepare.yml

@@ -11,7 +11,7 @@
   #
   # To avoid this problem we create the directories before starting IPA.
   - name: Ensure lock dirs for DS exists
-    file:
+    ansible.builtin.file:
       state: directory
       owner: dirsrv
       group: dirsrv
@@ -22,6 +22,6 @@
       - /var/lock/dirsrv/slapd-TEST-LOCAL/
 
   - name: Ensure IPA server is up an running
-    service:
+    ansible.builtin.service:
       name: ipa
       state: started