Host interfaces are always returned sorted by name

JIRA INFRA-785 #action In Progress

After a VM or VIOC creation, a post install job can be triggered.
The job to trigger is based on the domain and defined in the
AWX_POST_INSTALL dictionary.

Admin users have the option to skip this post job if required.

The job is enqueued in RQ with a dependency on the creation job.
So it's only triggered after successful completion of the first one.

JIRA INFRA-769

- Disk size added to the create VM form
- Disk size saved to proxmox_disk_space variable in host inventory

The proxmox_disk_space variable is used by the Ansible job when creating
the machine.

JIRA INFRA-759 #action In Progress

Not sure why a tuple instead of network was returned...
There must have been a comma at the end of the line due to copy/pasting
and black converted that to a tuple.

Added a test for the create_interface function.

JIRA INFRA-697 #action In Progress

JIRA INFRA-640

JIRA INFRA-678 #action In Progress

JIRA INFRA-578 #action In Progress

JIRA INFRA-578

- Host names are unique (no 2 hosts with same name)
- A host name shall not conflict with a cname or interface (if not main
interface)
- Interface names are unique (no 2 interfaces with same name)
- An interface shall not conflict with a cname or host (if not assigned
host)
- cnames are only unique by domain (2 cnames can have the same name if
different domains)
- A cname shall not conflict with a host or interface
- An interface has to be linked to a host

Validation is implemented at the model level.
Some is also implemented at the form level as it gives nicer feedback,
but not all as it's a bit more complex when it requires check on several fields.

JIRA INFRA-245

- mac is now a column in the interface table (no link to the mac table)
- mac column is unique (can't have 2 interfaces with the same mac)
- the mac table is kept for the items

JIRA INFRA-639

- switch to server side processing to retrieve network hosts
  (the table started to be bigger and takes time to load)
- add full text search using elasticsearch

Note that only the first IP is displayed in the host table (all
interfaces were displayed before). Search can be performed on any
interfaces.

JIRA INFRA-595 #action In Progress

This is to ensure that when editing an object it is properly
re-indexed.

JIRA INFRA-575

JIRA INFRA-569 #action In Progress

- set cascade to all and delete-orphan to delete interfaces when
  deleting a host
- button added on the view host page to delete host (admin only)

JIRA INFRA-557 #action In Progress

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

JIRA INFRA-548

JIRA INFRA-414

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

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/

Table used to save the RQ background jobs

JIRA INFRA-403

JIRA INFRA-402

Memory shall be passed in MB and GB

a "startsWith" was inserted by commit 1a2f3786
This is the javascript syntax. In Python, it should be lowercase
"startswith"...

Passing tags as kwarg to the InterfaceForm doesn't work because
obj takes precedence (but interface.tags contain Tag instances and not id)
We need to update the default values. Calling process is required.
See https://stackoverflow.com/questions/5519729/wtforms-how-to-select-options-in-selectmultiplefield

JIRA INFRA-334

Allow to create a VM or Virtual IOC

- rename "Virtual" to "Virtual Machine"
- add "Virtual IOC"
- add several physical devices (Switch, Industrial PC IOC, MicroTCA,
  VME, PLC)

1. When we have a stack of switches, the same IP is associated to several
   switches
2. Move the items <-> host assocation to the item create/edit page

JIRA INFRA-267

JIRA INFRA-281

"type" field on host replaced with foreign key "machine_type_id"

JIRA INFRA-281

We should reserve 10 addresses at the beginning and 5 at the end.
Meaning for a /24 network, we should start at 11 and end at 249.

The network range defines the IP to be allocated.
This is to reserve some specific addresses (for gateway for example).

An admin user should be able to define an interface outside the network
range.

The IP address select field was replaced with a string field
(initialized to the first available IP).

Fixes INFRA-200

Fixes INFRA-197

- add domain_id on NetworkScope table to define a default domain
- add domain_id on Network (default to the Network Scope one)

Fixes INFRA-194

One should be able to enter a MAC when creating/editing an interface.

- Only admin should be able to create networks
- Deleting an interface should require at least create group (should
  that be restricted to admin?)