Update documentation

docs/network.rst

@@ -73,3 +73,29 @@ If the host is an IOC (the interface should have the **IOC** tag), the form will
 In both case, a confirmation dialog will be displayed when you submit the form.
 
 .. image:: _static/create_vm_confirmation.png
+
+Ansible inventory
+-----------------
+
+CSEntry is used as an Ansible dynamic inventory.
+
+Ansible groups can be created via the web interface and variables can be defined at the group or host level.
+Note that group creation/edition is restricted to admin users.
+
+The main *Ansible groups* page lists all the groups with their variables and associated hosts.
+
+.. image:: _static/ansible/list_ansible_groups.png
+
+New group can be added from the *Register Ansible group* page:
+
+.. image:: _static/ansible/register_ansible_group.png
+
+Hosts can be associated to a group from the *Edit Ansible group* page or from the *Edit Host* page.
+
+.. image:: _static/ansible/edit_ansible_group.png
+
+.. image:: _static/ansible/edit_ansible_host_vars.png
+
+Variables should be entered in YAML format. `CodeMirror <http://codemirror.net>`_ is used to provide a text editor with syntax higlighting
+in the register/edit pages.
+Refer to Ansible documentation for more information about `YAML Syntax <https://docs.ansible.com/ansible/latest/reference_appendices/YAMLSyntax.html>`_.