Usage documentation
===================

Discovery
*********

In order to discover the available resources in the system, OOI provides a view
of the relevant resources for its usage::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/-/

It will show the OCCI and OpenStack resources related to OOI.


Compute
*******

It allows to create, list, show and delete VMs.

List compute
------------

It lists VMs::

    curl  -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/compute

It returns a HTTP 200 with output::

    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/compute/703910d7-97f7-4e3e-9243-30830591f624
    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/compute/0ce5df96-7e61-4a8e-b821-9ebb88e77e07

Show compute
------------

It shows details of a VM::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/compute/703910d7-97f7-4e3e-9243-30830591f624

It returns a HTTP 200 with output::

    Category: compute; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind"; title="compute resource"; rel="http://schemas.ogf.org/occi/core#resource"; location="http://127.0.0.23:8787/occi1.2/compute/"
    Category: 5f4311da-2ee2-47a6-913b-5d8496486c62; scheme="http://schemas.openstack.org/template/os#"; class="mixin"; title="cirros-0.3.4-x86_64-uec"; rel="http://schemas.ogf.org/occi/infrastructure#os_tpl"; location="http://127.0.0.23:8787/occi1.2/os_tpl/5f4311da-2ee2-47a6-913b-5d8496486c62"
    Category: 42; scheme="http://schemas.openstack.org/template/resource#"; class="mixin"; title="Flavor: m1.nano"; rel="http://schemas.ogf.org/occi/infrastructure#resource_tpl"; location="http://127.0.0.23:8787/occi1.2/resource_tpl/42"
    X-OCCI-Attribute: occi.core.title="vm_assig_2"
    X-OCCI-Attribute: occi.compute.state="inactive"
    X-OCCI-Attribute: occi.compute.memory=64
    X-OCCI-Attribute: occi.compute.cores=1
    X-OCCI-Attribute: occi.compute.hostname="vm_assig_2"
    X-OCCI-Attribute: occi.core.id="703910d7-97f7-4e3e-9243-30830591f624"
    Link: <http://127.0.0.23:8787/occi1.2/compute/703910d7-97f7-4e3e-9243-30830591f624?action=start>; rel="http://schemas.ogf.org/occi/infrastructure/compute/action#start"
    Link: <http://127.0.0.23:8787/occi1.2/compute/703910d7-97f7-4e3e-9243-30830591f624?action=stop>; rel="http://schemas.ogf.org/occi/infrastructure/compute/action#stop"
    Link: <http://127.0.0.23:8787/occi1.2/compute/703910d7-97f7-4e3e-9243-30830591f624?action=restart>; rel="http://schemas.ogf.org/occi/infrastructure/compute/action#restart"
    Link: <http://127.0.0.23:8787/occi1.2/compute/703910d7-97f7-4e3e-9243-30830591f624?action=suspend>; rel="http://schemas.ogf.org/occi/infrastructure/compute/action#suspend"
    Link: <http://127.0.0.23:8787/occi1.2/networklink/703910d7-97f7-4e3e-9243-30830591f624_cd48b7dd-9ac8-44fc-aec0-5ea679941ced_12.0.0.87>;
    rel="http://schemas.ogf.org/occi/infrastructure#network";
    self="http://127.0.0.23:8787/occi1.2/networklink/703910d7-97f7-4e3e-9243-30830591f624_cd48b7dd-9ac8-44fc-aec0-5ea679941ced_12.0.0.87";
    occi.networkinterface.mac="fa:16:3e:20:14:f2"; occi.networkinterface.interface="eth0"; occi.networkinterface.state="active";
    occi.networkinterface.allocation="dynamic"; occi.networkinterface.address="12.0.0.87";
    occi.core.source="http://127.0.0.23:8787/occi1.2/compute/703910d7-97f7-4e3e-9243-30830591f624";
    occi.core.target="http://127.0.0.23:8787/occi1.2/network/cd48b7dd-9ac8-44fc-aec0-5ea679941ced";
    occi.core.id="703910d7-97f7-4e3e-9243-30830591f624_cd48b7dd-9ac8-44fc-aec0-5ea679941ced_12.0.0.87"
    Link: <http://127.0.0.23:8787/occi1.2/networklink/703910d7-97f7-4e3e-9243-30830591f624_PUBLIC_11.0.0.44>;
    rel="http://schemas.ogf.org/occi/infrastructure#network"; self="http://127.0.0.23:8787/occi1.2/networklink/703910d7-97f7-4e3e-9243-30830591f624_PUBLIC_11.0.0.44";
    occi.networkinterface.mac="fa:16:3e:20:14:f2"; occi.networkinterface.interface="eth0"; occi.networkinterface.state="active"; occi.networkinterface.allocation="dynamic";
    occi.networkinterface.address="11.0.0.44"; occi.core.source="http://127.0.0.23:8787/occi1.2/compute/703910d7-97f7-4e3e-9243-30830591f624";
    occi.core.target="http://127.0.0.23:8787/occi1.2/network/PUBLIC"; occi.core.id="703910d7-97f7-4e3e-9243-30830591f624_PUBLIC_11.0.0.44"
    Link: <http://127.0.0.23:8787/occi1.2/storagelink/703910d7-97f7-4e3e-9243-30830591f624_f551d92d-1992-4625-91ff-5e48d96d03c9>;
    rel="http://schemas.ogf.org/occi/infrastructure#storage";
    self="https://127.0.0.23:8787/occi1.2/storagelink/703910d7-97f7-4e3e-9243-30830591f624_f551d92d-1992-4625-91ff-5e48d96d03c9";
    occi.storagelink.deviceid="/dev/xvdb"; occi.core.source="https://127.0.0.23:8787/occi1.2/compute/703910d7-97f7-4e3e-9243-30830591f624";
    occi.core.target="https://127.0.0.23:8787/occi1.2/storage/f551d92d-1992-4625-91ff-5e48d96d03c9";
    occi.core.id="703910d7-97f7-4e3e-9243-30830591f624_f551d92d-1992-4625-91ff-5e48d96d03c9"

Create compute
--------------

It creates a VM using the default resources, including links to storage and private networks::

    curl -X POST http://127.0.0.23:8787/occi1.2/compute/ \
        -H 'X-Auth-Token: '$OS_TOKEN \
        -H 'Category: compute; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind", \
        -H 'Category: 5f4311da-2ee2-47a6-913b-5d8496486c62; scheme="http://schemas.openstack.org/template/os#"; class="mixin" \
        -H 'Category: 42; scheme="http://schemas.openstack.org/template/resource#"; class="mixin"' \
        -H 'Content-Type: text/occi' -H 'X-OCCI-Attribute: occi.core.title="OOI_VM_1"'

Also we can specify the network to be linked::

    curl -X POST http://127.0.0.23:8787/occi1.2/compute/ \
        -H 'X-Auth-Token: '$OS_TOKEN \
        -H 'Category: compute; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind", \
        -H 'Category: 5f4311da-2ee2-47a6-913b-5d8496486c62; scheme="http://schemas.openstack.org/template/os#"; class="mixin" \
        -H 'Category: 42; scheme="http://schemas.openstack.org/template/resource#"; class="mixin"' \
        -H 'Link: </bar>; rel="http://schemas.ogf.org/occi/infrastructure#network"; \
            occi.core.target="http://127.0.0.23:8787/occi1.2/network/f8186fda-a389-468b-9c13-24b8eda65d77"' \
        -H 'Content-Type: text/occi' -H 'X-OCCI-Attribute: occi.core.title="OOI_VM_1"'

Links to storage can be also specified::

    curl -X POST http://127.0.0.23:8787/occi1.2/compute/ \
        -H 'X-Auth-Token: '$OS_TOKEN \
        -H 'Category: compute; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind" \
        -H 'Category: 5f4311da-2ee2-47a6-913b-5d8496486c62; scheme="http://schemas.openstack.org/template/os#"; class="mixin" \
        -H 'Category: 42; scheme="http://schemas.openstack.org/template/resource#"; class="mixin"' \
        -H 'Link: </bar>; rel="http://schemas.ogf.org/occi/infrastructure#storage"; \
            occi.core.target="http://127.0.0.23:8787/occi1.2/storage/567ed104-3ddf-11e6-ad65-00219702a0b8"' \
        -H 'Content-Type: text/occi' -H 'X-OCCI-Attribute: occi.core.title="OOI_VM_1"'

It returns a HTTP 201 with output::

    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/compute/4a7dc666-33d2-495e-93fe-ccd224c98c11

Delete compute
--------------

It deletes a VM, including all the links associated to it::

    curl -X DELETE -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/compute/703910d7-97f7-4e3e-9243-30830591f624

It returns a 204 empty response.

Storage
*******

Storage management provides list, show, create and deletion of volumes to a
specific tenant.

List storage
------------

It lists volumes::

    curl  -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/storage

It returns a HTTP 200 with output::

    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/storage/91bb7532-3ddb-11e6-9770-00219702a0b8
    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/storage/a10abe94-3ddb-11e6-bc5d-00219702a0b8

Show storage
------------

It shows details of a volume::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/storage/f551d92d-1992-4625-91ff-5e48d96d03c9

It returns a HTTP 200 with output::

    Category: storage; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind"; title="compute resource"; rel="http://schemas.ogf.org/occi/core#resource"; location="http://127.0.0.23:8787/occi1.2/storage/"
    X-OCCI-Attribute: occi.storage.state="online"
    X-OCCI-Attribute: occi.core.id="f551d92d-1992-4625-91ff-5e48d96d03c9"
    X-OCCI-Attribute: occi.storage.size=1
    X-OCCI-Attribute: occi.core.title="vol1"
    Link: <http://127.0.0.23:8787/occi1.2/storage/f551d92d-1992-4625-91ff-5e48d96d03c9?action=online>; rel="http://schemas.ogf.org/occi/infrastructure/storage/action#online"
    Link: <http://127.0.0.23:8787/occi1.2/storage/f551d92d-1992-4625-91ff-5e48d96d03c9?action=offline>; rel="http://schemas.ogf.org/occi/infrastructure/storage/action#offline"
    Link: <http://127.0.0.23:8787/occi1.2/storage/f551d92d-1992-4625-91ff-5e48d96d03c9?action=backup>; rel="http://schemas.ogf.org/occi/infrastructure/storage/action#backup"
    Link: <http://127.0.0.23:8787/occi1.2/storage/f551d92d-1992-4625-91ff-5e48d96d03c9?action=snapshot>; rel="http://schemas.ogf.org/occi/infrastructure/storage/action#snapshot"
    Link: <http://127.0.0.23:8787/occi1.2/storage/f551d92d-1992-4625-91ff-5e48d96d03c9?action=resize>; rel="http://schemas.ogf.org/occi/infrastructure/storage/action#resize"

Delete storage
--------------

It deletes a volume, including all the links associated to it::

    curl -X DELETE -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/storage/f551d92d-1992-4625-91ff-5e48d96d03c9

It returns a 204 empty response.

Storage Link
************

OOI allows to link virtual machines to existing volumes.

List storage links
------------------

It lists links between VMs and volumes::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/storagelink

It returns a HTTP 200 with output::

    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/storagelink/8a97b403-3ec6-4002-988b-1f34dd836eff_f551d92d-1992-4625-91ff-5e48d96d03c9
    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/storagelink/e9bf4d1e-3dde-11e6-8479-00219702a0b8_f382628c-3dde-11e6-9697-00219702a0b8

Show storage link
-----------------

It shows the storage attachemet featuresr::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/storagelink/8a97b403-3ec6-4002-988b-1f34dd836eff_f551d92d-1992-4625-91ff-5e48d96d03c9

It returns a HTTP 200 with output::

    Category: storagelink; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind"; title="storage link resource"; rel="http://schemas.ogf.org/occi/core#link"; location="http://127.0.0.23:8787/occi1.2/storagelink/"
    X-OCCI-Attribute: occi.storagelink.deviceid="/dev/xvdb"
    X-OCCI-Attribute: occi.core.source="http://127.0.0.23:8787/occi1.2/compute/8a97b403-3ec6-4002-988b-1f34dd836eff"
    X-OCCI-Attribute: occi.core.target="http://127.0.0.23:8787/occi1.2/storage/f551d92d-1992-4625-91ff-5e48d96d03c9"
    X-OCCI-Attribute: occi.core.id="8a97b403-3ec6-4002-988b-1f34dd836eff_f551d92d-1992-4625-91ff-5e48d96d03c9"

Create storage link
-------------------

It allows you to attach volumes to VMs::

    curl -X POST http://127.0.0.23:8787/occi1.2/storagelink/ \
        -H 'X-Auth-Token: '$OS_TOKEN \
        -H 'Content-Type: text/occi' \
        -H 'Category: storagelink;scheme="http://schemas.ogf.org/occi/infrastructure#";class="kind";' \
        -H 'X-OCCI-Attribute: occi.core.target=/occi1.2/storage/f551d92d-1992-4625-91ff-5e48d96d03c9, \
            occi.core.source="/occi1.2/compute/8a97b403-3ec6-4002-988b-1f34dd836eff"'

It returns a HTTP 200 with output::

    http://127.0.0.23:8787/occi1.2/storagelink/8a97b403-3ec6-4002-988b-1f34dd836eff_f551d92d-1992-4625-91ff-5e48d96d03c9

Delete storage link
-------------------
It detaches a volume from VM::

    curl -X DELETE -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/storagelink/8a97b403-3ec6-4002-988b-1f34dd836eff_f551d92d-1992-4625-91ff-5e48d96d03c9

It returns a 204 empty response.

Network
*******

Network management provides list, show, create and deletion of networks to a
specific tenant.

List networks
-------------

It lists all networks available for connecting virtual machines::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/network


It returns a HTTP 200 with output::

    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/network/2c9868b4-f71a-45d2-ba8c-dbf42f0b3120
    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/network/4213c7ef-68d4-42e8-a3cd-1c5bab3abe6
    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/network/PUBLIC

Show network
------------

It shows the network features::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/network/b8a3d813-65da-4910-a80c-f97b4ba31fd4

It returns a HTTP 200 with output::

    Category: network; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind"; title="network resource";
     rel="http://schemas.ogf.org/occi/core#resource"; location="http://127.0.0.23:8787/occi1.2/network/"
    Category: ipnetwork; scheme="http://schemas.ogf.org/occi/infrastructure/network#"; class="mixin";
     title="IP Networking Mixin"
    Category: osnetwork; scheme="http://schemas.openstack.org/infrastructure/network#"; class="mixin";
     title="openstack network"
    X-OCCI-Attribute: occi.network.address="20.0.0.0/24"
    X-OCCI-Attribute: occi.network.state="active"
    X-OCCI-Attribute: occi.core.title="CommandLineOCCI"
    X-OCCI-Attribute: occi.network.gateway="20.0.0.1"
    X-OCCI-Attribute: occi.core.id="4a7dc666-33d2-495e-93fe-ccd224c98c11"
    Link: <http://127.0.0.23:8787/occi1.2/network/4a7dc666-33d2-495e-93fe-ccd224c98c11?action=up>;
     rel="http://schemas.ogf.org/occi/infrastructure/network/action#up"
    Link: <http://127.0.0.23:8787/occi1.2/network/4a7dc666-33d2-495e-93fe-ccd224c98c11?action=down>;
    rel="http://schemas.ogf.org/occi/infrastructure/network/action#down"

Create network
--------------

It creates a network::

    curl -X POST http://127.0.0.23:8787/occi1.2/network/ \
        -H 'X-Auth-Token: '$OS_TOKEN \
        -H 'Category: network; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind", \
            ipnetwork; scheme="http://schemas.ogf.org/occi/infrastructure/network#"; class="mixin"' \
        -H 'Content-Type: text/occi' \
        -H 'X-OCCI-Attribute: occi.core.title="OCCI_NET", occi.network.address="15.0.0.0/24"'

It returns a HTTP 201 with output::

    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/network/4a7dc666-33d2-495e-93fe-ccd224c98c11

Delete network
--------------

It deletes a network::

    curl -X DELETE -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/network/cb94496e-7e8e-4cb6-841d-30f38bc375e6

It returns a 204 empty response.

IPReservation
**************

OOI allows to manage public IPs by using IPReservation resources. This resource is a special network to provide public access.
It allocates and releases IPs from public network pools.

List IPReservations
-------------------
It list IPReservation resources::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.1:8787/occi1.1/ipreservation

It returns a HTTP 200 with output::

    X-OCCI-Location: http://127.0.0.1:8787/occi1.1/ipreservation/3318c3af-ce57-41ef-a9c1-9a5ecfbe0526

Show IPReservation
------------------
It shows the IPReservation details::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.1:8787/occi1.1/ipreservation/3318c3af-ce57-41ef-a9c1-9a5ecfbe0526

It returns a HTTP 200 with output::

    Category: ipreservation; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind"; title="IPReservation"; rel="http://schemas.ogf.org/occi/infrastructure#network"; location="http://127.0.0.1:8787/occi1.1/ipreservation/"
    X-OCCI-Attribute: occi.core.title="external-net"
    X-OCCI-Attribute: occi.core.summary=[]
    X-OCCI-Attribute: occi.core.id="3318c3af-ce57-41ef-a9c1-9a5ecfbe0526"
    X-OCCI-Attribute: occi.ipreservation.address="193.136.75.90"
    X-OCCI-Attribute: occi.ipreservation.used="true"
    Link: <http://127.0.0.1:8787/occi1.1/ipreservation/3318c3af-ce57-41ef-a9c1-9a5ecfbe0526?action=up>; rel="http://schemas.ogf.org/occi/infrastructure/network/action#up"
    Link: <http://127.0.0.1:8787/occi1.1/ipreservation/3318c3af-ce57-41ef-a9c1-9a5ecfbe0526?action=down>; rel="http://schemas.ogf.org/occi/infrastructure/network/action#down"

Create IPReservation
--------------------
It creates a IPReservation resource::

    curl -X POST http://127.0.0.1:8787/occi1.1/ipreservation -H 'X-Auth-token: '$OS_TOKEN \
    -H 'Category: ipreshemas.ogf.org/occi/infrastructure#"; class="kind",' \
    'external-net; scheme="http://schemas.openstack.org/network/floatingippool#"; class="mixin"' \
    -H 'Content-Type: text/occi'

It returns a HTTP 200 with output::

    X-OCCI-Location: http://127.0.0.1:8787/occi1.1/ipreservation/3318c3af-ce57-41ef-a9c1-9a5ecfbe0526

Delete IPReservation
--------------------
It deletes IPReservation resources::

    curl -X DELETE -H "X-Auth-token: "$OS_TOKEN http://127.0.0.1:8787/occi1.1/ipreservation/3318c3af-ce57-41ef-a9c1-9a5ecfbe0526

It returns a 204 empty response.

Network Link
************

OOI allows to link virtual machines to private networks, and request for public
floating IPs.

List network links
------------------

It lists links between VMs and networks::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/networklink

It returns a HTTP 200 with output::

    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/networklink/9524a622-5d1a-4c7c-bb83-e0d539e2c69b_PUBLIC_192.168.1.132
    X-OCCI-Location: http://127.0.0.23:8787/occi1.2/networklink/703910d7-97f7-4e3e-9243-30830591f624_cd48b7dd-9ac8-44fc-aec0-5ea679941ced_12.0.0.87

Show network link
-----------------

It shows the network link features. It could be with a private or public
network.  In case of private network::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/networklink/703910d7-97f7-4e3e-9243-30830591f624_cd48b7dd-9ac8-44fc-aec0-5ea679941ced_12.0.0.87

It returns a HTTP 200 with output::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/networklink/703910d7-97f7-4e3e-9243-30830591f624_cd48b7dd-9ac8-44fc-aec0-5ea679941ced_12.0.0.87
    Category: networkinterface; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind"; \
     title="network link resource"; rel="http://schemas.ogf.org/occi/core#link"; location="http://127.0.0.23:8787/occi1.2/networklink/" \
    Category: ipnetworkinterface; scheme="http://schemas.ogf.org/occi/infrastructure/networkinterface#"; \
     class="mixin"; title="IP Network interface Mixin"
    X-OCCI-Attribute: occi.networkinterface.mac="fa:16:3e:20:14:f2"
    X-OCCI-Attribute: occi.networkinterface.interface="eth0"
    X-OCCI-Attribute: occi.networkinterface.state="active"
    X-OCCI-Attribute: occi.networkinterface.allocation="dynamic"
    X-OCCI-Attribute: occi.networkinterface.address="12.0.0.87"
    X-OCCI-Attribute: occi.core.source="http://127.0.0.23:8787/occi1.2/compute/703910d7-97f7-4e3e-9243-30830591f624"
    X-OCCI-Attribute: occi.core.target="http://127.0.0.23:8787/occi1.2/network/cd48b7dd-9ac8-44fc-aec0-5ea679941ced"
    X-OCCI-Attribute: occi.core.id="703910d7-97f7-4e3e-9243-30830591f624_cd48b7dd-9ac8-44fc-aec0-5ea679941ced_12.0.0.87"

In case of public network::

    curl -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/networklink/4f11383c-b104-40d4-a17c-d223e450d15d_b8a3d813-65da-4910-a80c-f97b4ba31fd4_20.0.0.5

It returns a HTTP 200 with output::

    Category: networkinterface; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind";
     title="network link resource"; rel="http://schemas.ogf.org/occi/core#link";
     location="http://127.0.0.23:8787/occi1.2/networklink/"
    Category: ipnetworkinterface; scheme="http://schemas.ogf.org/occi/infrastructure/networkinterface#"; class="mixin"; title="IP Network interface Mixin"
    X-OCCI-Attribute: occi.networkinterface.mac="fa:16:3e:81:52:b9"
    X-OCCI-Attribute: occi.networkinterface.interface="eth0"
    X-OCCI-Attribute: occi.networkinterface.state="active"
    X-OCCI-Attribute: occi.networkinterface.allocation="dynamic"
    X-OCCI-Attribute: occi.networkinterface.address="20.0.0.5"
    X-OCCI-Attribute: occi.core.source="http://127.0.0.23:8787/occi1.2/compute/4f11383c-b104-40d4-a17c-d223e450d15d"
    X-OCCI-Attribute: occi.core.target="http://127.0.0.23:8787/occi1.2/network/b8a3d813-65da-4910-a80c-f97b4ba31fd4"
    X-OCCI-Attribute: occi.core.id="4f11383c-b104-40d4-a17c-d223e450d15d_b8a3d813-65da-4910-a80c-f97b4ba31fd4_20.0.0.5"

Create network link
-------------------

It allows you to create link between VMs and networks. It could be with a
private or public network: In case of private network::

    curl -X POST http://127.0.0.23:8787/occi1.2/networklink/ \
        -H 'X-Auth-Token: '$OS_TOKEN \
        -H 'Category: networkinterface; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind"' \
        -H 'Content-Type: text/occi' \
        -H 'X-OCCI-Attribute: occi.core.target=http://127.0.0.23:8787/occi1.2/network/PUBLIC, \
            occi.core.source=http://127.0.0.23:8787/occi1.2/compute/cb83a70a-5202-4b9e-a525-649c72005300'

In case of private network::

    curl -X POST http://127.0.0.23:8787/occi1.2/networklink/ \
        -H 'X-Auth-Token: '$OS_TOKEN \
        -H 'Category: networkinterface; scheme="http://schemas.ogf.org/occi/infrastructure#"; class="kind"' \
        -H 'Content-Type: text/occi' \
        -H 'X-OCCI-Attribute: occi.core.target=http://127.0.0.23:8787/occi1.2/network/d856c264-1999-489d-888e-f84db9093979, \
            occi.core.source=http://127.0.0.23:8787/occi1.2/compute/cb83a70a-5202-4b9e-a525-649c72005300'


Delete network link
-------------------
It deletes a network link::

    curl -X DELETE -H "X-Auth-token: "$OS_TOKEN http://127.0.0.23:8787/occi1.2/networklink/703910d7-97f7-4e3e-9243-30830591f624_cd48b7dd-9ac8-44fc-aec0-5ea679941ced_12.0.0.87

It returns a 204 empty response.
