Remove Kubernetes and Terraform roles

Today we have kubelab [1] and terraform_tfs_generator [2] that are Ansible
standalone roles with their GitHub Actions that publish them on Galaxy [3][4],
so we don't need them here anymore.

[1] https://github.com/mmul-it/kubelab
[2] https://github.com/mmul-it/terraform_tfs_generator
[3] https://galaxy.ansible.com/ui/standalone/roles/mmul/kubelab/
[4] https://galaxy.ansible.com/ui/standalone/roles/mmul/terraform_tfs_generator/

Author: rascasoft

README.md

@@ -3,10 +3,6 @@
 This collection of roles can be used to implement various cloud native
 solutions:
 
-* [Kubernetes](roles/kubernetes): a Kubernetes cluster;
-* [Terraform](roles/terraform): based on the passed inventory, it generates
-  all the Terraform files needed to implement a cloud (today just Azure)
-  datacenter;
 * [Azure](roles/azure): automate tasks on Azure;
 * [Graylog](roles/graylog-server): a clustered Graylog/MongoDB/Elasticsearch
   solution;
@@ -18,15 +14,17 @@ 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.
+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.
+The best way to run everything is by using Python virtual environments and
+Ansible Collections.
 
 First of all you need to clone this repository:
 
-```
+```console
 user@lab ~ # git clone https://github.com/mmul-it/ansible
 Cloning into 'ansible'...
 remote: Enumerating objects: 2572, done.
@@ -39,7 +37,7 @@ Resolving deltas: 100% (1345/1345), done.
 
 Then you will create your Python virtual environment:
 
-```
+```console
 user@lab ~ # python3 -m virtualenv ansible-env
 Running virtualenv with interpreter /usr/bin/python2
 New python executable in /root/ansible-env/bin/python2
@@ -54,7 +52,7 @@ Installing setuptools, pkg_resources, pip, wheel...done.
 
 And then you'll be ready to install the Python requirements:
 
-```
+```console
 (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)
@@ -67,7 +65,7 @@ Successfully installed cachetools-4.2.4 google-auth-2.13.0 kubernetes-24.2.0 rsa
 
 And finally the Ansible collections:
 
-```
+```console
 (ansible-env) user@lab ~ # ansible-galaxy install -r ansible/collections/requirements.yml
 Starting galaxy collection install process
 Process install dependency map
@@ -76,21 +74,26 @@ 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.
+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:
+Supposing that you want to install a Kubernetes environment, you'll need to pass
+an inventory (we will rely on `lab`) like this:
 
-```
+```console
 $ ansible-playbook \
--i $HOME/ansible/inventory/lab \
-$HOME/ansible/kubernetes.yml
+  -i $HOME/ansible/inventory/lab \
+  $HOME/ansible/kubernetes.yml
 ```
 
 ## Authors
 
-This project was created and is maintained by [Raoul Scarazzini](https://github.com/rascasoft) and has contributions from other users. Thanks to everyone who will contribute in the future, you're more than welcome!
+This project was created and is maintained by
+[Raoul Scarazzini](https://github.com/rascasoft) and has contributions from
+other users. Thanks to everyone who will contribute in the future, you're more
+than welcome!
 
 ## License
 

collections/requirements.yml

@@ -8,4 +8,3 @@ collections:
     version: '1.4.0'
   - name: community.crypto
     version: 1.6.2
-  - name: community.kubernetes

kubernetes.yml

@@ -1,4 +1,3 @@
 ansible
 ansible-vault
 azure-cli
-kubernetes