Included libraries:
- DataTables 1.10.18 (with bootstrap 4 theme)
- Buttons 1.5.2
- Column visibility 1.5.2
- Print view 1.5.2

JIRA INFRA-545

This was just a typo...
It should be AnsibleGroup instead of AnsibleQuery...

JIRA INFRA-548

ztp_stack can be empty.
We pass it as extra vars only if it's not.
The survey of the AWX_ZTP_CONFIGURATION template shall be updated to set
the ztp_stack parameter as not required.

JIRA INFRA-547

Allow to copy/paste the output of the "ansible-vault encrypt_string"
command to CSEntry

JIRA INFRA-544 #action In Progress

This is not directly supported by CodeMirror.
See https://github.com/codemirror/CodeMirror/issues/850

Add cm-resize library from https://github.com/Sphinxxxx/cm-resize

JIRA INFRA-543 #action In Progress

WARNING! To pass the SECRET_KEY as en env variable, you should use
base64 encoding as the key is supposed to be a random string of bytes.

Errors are now sent to sentry.
No need to send them directly via e-mail.

JIRA INFRA-525

JIRA INFRA-525 #action In Progress

CSENTRY_ENVIRONMENT shall be set to production|staging|development
It can be used when sending errors to Sentry

JIRA INFRA-525

JIRA INFRA-500 #action In Progress

New variable required to generate ZTP configuration.
Note that we can only pass strings with extra_vars in AWX API (no list
or dict).

JIRA INFRA-458 #action In Progress

JIRA INFRA-459 #action In Progress

Using flask-login request_loader, we can validate jwt tokens.
This allows to use the same decorators for the web UI (using cookies)
and the API (using JWT) as well as the current_user local proxy.

The official flask-bootstrap is still not compatible with bootstrap 4.
The application basically only uses the main template and one macro.
It's easier to include directly bootstrap in CSEntry.
It makes upgrading to the latest bootstrap much easier and removes a
dependency.

Update to bootstrap 4.1.3

Added:
- jquery-3.3.1.min.js
- bootstrap.bundle.min.js (include popper but not jquery)

Note that jquery.slim can't be used.
We need for example $.getJSON for datatables.

JIRA INFRA-424

JIRA INFRA-414

This is not super clean. The model and device_type belong to the host.
This is for easy access from the API.
But it would be better to have a "expand=true" query parameter and return the
host as a dict.

JIRA INFRA-414

JIRA INFRA-414

JIRA INFRA-412

- add ansible_groups_hosts_table for many-to-many relationship between
groups and hosts
- add new api endpoint /network/groups

JIRA INFRA-412

Allow to enter Ansible variables on host in YAML format.
Use codemirror (http://codemirror.net) to make editing YAML easier.

JIRA INFRA-412

+ yaml mode

Use the before_flush hook to trigger the core services update.
It's much nicer than having to call a method in several places.

The core services update is triggered on creation/modification/deletion
of an Interface.

In the before_flush we can manipulate the session (add objects) but we
shouldn't call commit.
The db.session.commit() was removed from the launch_task method.

https://black.readthedocs.io/en/stable/

Add new jinja2 filter to format datetime

Avoid calling the database several times.
Several attributes can be updated in one call.

Only save exceptions that occur before the AWX job was triggered.
If the AWX job failed, we can refer to the logs on AWX.

Allow to display tasks

JIRA INFRA-403

Table used to save the RQ background jobs

JIRA INFRA-403