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MMUL Ansible roles

This collection of roles can be used to implement various cloud native solutions:

  • Azure: automate tasks on Azure;
  • Graylog: a clustered Graylog/MongoDB/Elasticsearch solution;
  • MaxScale: a MariaDB MaxScale instance (suitable also for Azure MaxScale);
  • Redis: a Redis cluster implementation;

A specific README will be (soon, if not present) available for each role.

Using the roles

For each of the role there is an Ansible plugin that will invoke everything that is needed to accomplish its scope.

Preparing the environment

The best way to run everything is by using Python virtual environments and Ansible Collections.

First of all you need to clone this repository:

user@lab ~ # git clone https://github.com/mmul-it/ansible
Cloning into 'ansible'...
remote: Enumerating objects: 2572, done.
remote: Counting objects: 100% (449/449), done.
remote: Compressing objects: 100% (199/199), done.
remote: Total 2572 (delta 269), reused 363 (delta 222), pack-reused 2123
Receiving objects: 100% (2572/2572), 9.10 MiB | 8.77 MiB/s, done.
Resolving deltas: 100% (1345/1345), done.

Then you will create your Python virtual environment:

user@lab ~ # python3 -m virtualenv ansible-env
Running virtualenv with interpreter /usr/bin/python2
New python executable in /root/ansible-env/bin/python2
Also creating executable in /root/ansible-env/bin/python
Installing setuptools, pkg_resources, pip, wheel...done.

# source ansible-env/bin/activate
(ansible-env) user@lab ~ #

(ansible-env) user@lab ~ # python3 -m pip install --upgrade pip

And then you'll be ready to install the Python requirements:

(ansible-env) user@lab ~ # pip3 install -r ansible/requirements.txt 
Requirement already satisfied: ansible in /usr/lib/python3.6/site-packages (from -r ansible/requirements.txt (line 1)) (2.10.7)
Requirement already satisfied: ansible-vault in /usr/lib/python3.6/site-packages (from -r ansible/requirements.txt (line 2)) (1.2.0)
Requirement already satisfied: azure-cli in /usr/lib/python3.6/site-packages (from -r ansible/requirements.txt (line 3)) (2.25.0)
...
...
Installing collected packages: rsa, cachetools, google-auth, kubernetes
Successfully installed cachetools-4.2.4 google-auth-2.13.0 kubernetes-24.2.0 rsa-4.9

And finally the Ansible collections:

(ansible-env) user@lab ~ # ansible-galaxy install -r ansible/collections/requirements.yml
Starting galaxy collection install process
Process install dependency map
...
...
kubernetes.core (2.3.2) was installed successfully

Now you should be ready to use ansible-playbook to execute the desired playbooks.

Launching the playbooks

Supposing that you want to install a Kubernetes environment, you'll need to pass an inventory (we will rely on lab) like this:

$ ansible-playbook \
  -i $HOME/ansible/inventory/lab \
  $HOME/ansible/kubernetes.yml

Authors

This project was created and is maintained by Raoul Scarazzini and has contributions from other users. Thanks to everyone who will contribute in the future, you're more than welcome!

License

MIT License