Atomic Entity managment

[gabrik]

Atomic Entities are a groups of FDUs that are coupled and that need to be deployed at the same time, and that may need some sort of interconnection.

An Atomic Entity can be connected with one or mode Atomic Entities to create an Entity.

Here an example of the descriptor of an Atomic Entity, composed by two FDUs interconnected by one link, and that expose a link for connection with other Atomic Entities

{
    "uuid": "db101a31-2045-4482-97dd-8c566491eab2",
    "name": "test_atomic_entity",
    "description": "this is a simple atomic entity composed by two LXD containers",
    "fdus": [
        {
            "name": "testOne",
            "computation_requirements": {
                "cpu_arch": "x86_64",
                "cpu_min_freq": 0.0,
                "cpu_min_count": 1,
                "ram_size_mb": 128.0,
                "storage_size_gb": 5.0
            },
            "base_image": {
                "uri": "lxd://alpine/3.6",
                "checksum": "",
                "format": ""
            },
            "hypervisor": "LXD",
            "migration_kind": "LIVE",
            "interfaces": [
                {
                    "name": "eth0",
                    "is_mgmt": true,
                    "if_type": "EXTERNAL",
                    "virtual_interface": {
                        "intf_type": "VIRTIO",
                        "vpci": "0:0:0",
                        "bandwidth": 10
                    },
                    "ext_cp_id": "test-ext-cp0"
                },
                {
                    "name": "eth1",
                    "is_mgmt": false,
                    "if_type": "INTERNAL",
                    "virtual_interface": {
                        "intf_type": "VIRTIO",
                        "vpci": "0:0:0",
                        "bandwidth": 10
                    },
                    "cp_id": "test-cp1"
                }
            ],
            "io_ports": [],
            "connection_points": [
                {
                    "id": "test-cp1",
                    "name": "test-internal-cp1"
                }
            ],
            "depends_on": []
        },
        {
            "name": "testTwo",
            "computation_requirements": {
                "cpu_arch": "x86_64",
                "cpu_min_freq": 0.0,
                "cpu_min_count": 1,
                "ram_size_mb": 128.0,
                "storage_size_gb": 5.0
            },
            "base_image": {
                "uri": "lxd://alpine/3.6",
                "checksum": "",
                "format": ""
            },
            "hypervisor": "LXD",
            "migration_kind": "LIVE",
            "interfaces": [
                {
                    "name": "eth1",
                    "is_mgmt": false,
                    "if_type": "INTERNAL",
                    "virtual_interface": {
                        "intf_type": "VIRTIO",
                        "vpci": "0:0:0",
                        "bandwidth": 10
                    },
                    "cp_id": "test-cp2"
                }
            ],
            "io_ports": [],
            "connection_points": [
                {
                    "id": "test-cp2",
                    "name": "test-internal-cp2"
                }
            ],
            "depends_on": []
        }
    ],
    "internal_virtual_links": [
        {
            "id": "internal",
            "name": "internal-vl",
            "ip_configuration": {
                "ip_version": "IPV4",
                "subnet": "192.168.234.0/24",
                "gateway": "192.168.234.1",
                "dhcp_enable": true,
                "dhcp_range": "192.168.234.2,192.168.234.100",
                "dns": "8.8.8.8,8.8.4.4"
            },
            "int_cps": [
                "test-cp1",
                "test-cp2"
            ]
        }
    ],
    "connection_points": [
        {
            "id": "test-ext-cp0",
            "name": "test-ext-cp0"
        }
    ],
    "depends_on": []
}

From an ETSI NFV point-of-view an Atomic Entity is a VNF

[gabrik]

Changes are going on in: https://github.com/atolab/fog05/tree/im_updates
With separation between users descriptors and descriptors used by the infrastrucutre