Update support matrix and properly test availability of NUMA

Author: UnderGreen

README.md

@@ -1,28 +1,28 @@
-# Ansible role for MongoDB 
+# Ansible role for MongoDB
 ![Centos](https://github.com/UnderGreen/ansible-role-mongodb/actions/workflows/centos.yml/badge.svg) ![Debian](https://github.com/UnderGreen/ansible-role-mongodb/actions/workflows/debian.yml/badge.svg)
 
-Ansible role which manages [MongoDB](http://www.mongodb.org/).
+Ansible role to install and manage [MongoDB](http://www.mongodb.org/).
 
-- Install and configure the MongoDB;
+- Install and configure the MongoDB
 - Configure mongodb users
+- Configure authentication
 - Configure replication
-- Provide handlers for restart and reload;
 - Setup MMS automation agent;
 
 MongoDB support matrix:
 
-| Distribution   | < MongoDB 3.4 |    MongoDB 3.6     |    MongoDB 4.0     |   MongoDB 4.2      |
-| -------------- | :-----------: | :----------------: | :----------------: | :----------------: |
-| Ubuntu 16.04   |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: |
-| Ubuntu 18.04   |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: |
-| Debian 9.x     |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: |
-| Debian 10.x    |  :no_entry:   |        :x:         |        :x:         | :white_check_mark: |
-| RHEL 7.x       |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: |
-| RHEL 8.x       |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: |
-| Amazon Linux 2 |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: |
-
-- :white_check_mark: - fully tested, should works fine
-- :interrobang: - maybe works, not tested
+| Distribution   | < MongoDB 3.4 |    MongoDB 3.6     |    MongoDB 4.0     |   MongoDB 4.2      |   MongoDB 4.4      |
+| -------------- | :-----------: | :----------------: | :----------------: | :----------------: | :----------------: |
+| Ubuntu 16.04   |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: |        :x:         |
+| Ubuntu 18.04   |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: |        :x:         |
+| Ubuntu 20.04   |  :no_entry:   |        :x:         |        :x:         |        :x:         | :white_check_mark: |
+| Debian 9.x     |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: |
+| Debian 10.x    |  :no_entry:   |        :x:         |        :x:         | :white_check_mark: | :white_check_mark: |
+| RHEL 7.x       |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: |
+| RHEL 8.x       |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: |
+| Amazon Linux 2 |  :no_entry:   | :white_check_mark: | :white_check_mark: | :white_check_mark: | :white_check_mark: |
+
+- :white_check_mark: - fully tested
 - :x: - don't have official support
 - :no_entry: - MongoDB has reached EOL
 

molecule/default/prepare.yml

@@ -3,7 +3,7 @@
   remote_user: root
   become: yes
   tasks:
-    - name: Install prerequisite packages for molecule testing for Debian/Ubuntu >= 18
+    - name: Install prerequisite packages for molecule testing on Debian or Ubuntu >= 18
       apt:
         update_cache: true
         name:

tasks/install.debian.yml

@@ -38,18 +38,17 @@
     update_cache: true
 
 - name: Check if NUMA is available on host
-  shell: "set -o pipefail && find /proc -name numa_maps | wc -l"
-  args:
-    executable: /bin/bash
-  register: numa_number_lines
+  command: "ls -1 /proc/1/numa_maps"
+  register: numa_available
+  ignore_errors: true
   changed_when: false
   check_mode: no
   when: mongodb_use_numa | bool
 
 - name: Don't use NUMA if it is unavailable on host
   set_fact:
     mongodb_use_numa: false
-  when: (mongodb_use_numa | bool and numa_number_lines.stdout | int == 0)
+  when: (mongodb_use_numa | bool and numa_available.rc != 0)
 
 - name: Install numactl package
   apt:
@@ -81,7 +80,8 @@
   notify:
     - reload systemd
 
-- name: Forcefully set mongodb_pymongo_from_pip to true on Debian 10
+  # Workaround for the idempotence issue on Debian 10 with pip module
+- name: Forcefully set mongodb_pymongo_from_pip to false on Debian 10
   set_fact:
     mongodb_pymongo_from_pip: false
   when: