import json
from jsonschema import validate
migration_options = \
{
'target': 'openstack',
'migration_type': 'warm',
'power_off_vm_post_migrate': False,
'openstack': {
    'instances':
    [
        {
            'id': '6da5223d-6865-4c76-8551-e52f03dcca19',  # identifies the VMware VM
            'name': 'migrated',  # new name for the migrated instance
            'include': True,     # False if you want to exclude this instance from
            'image_source': "ab6a7f2e-c72b-4c8a-a5c2-ddda28973107",
            'power': {           # the order in which we need to poweron the vm
                'sequence': 1,
            },
            'use_cinder_boot_volume': True,
            # if flavor exists, reuse the flavor or
            # create a new flavor
            'flavor': {          # flavor of the vm. If migration flow finds a 
                                 # flavor that matches these attributes, it uses 
                                 # the flavor id.
                'vcpus': 1,
                'ram': 8,        # otherwise it creates new flavor, depends on the
                'disk': 20,      # permissions of the user
                'ephemeral': True,
                'swap': 8,
            },
            # First try attaching to the following network.
            # Each network is keyed of the mac address of the original VM.
            # if there is no mention of mac address, then it tries to
            # migrate the VM to the original network. Otherwise it
            # tries to find the new network from the networks_mapping
            # stanza. If it can't find a network, migration fails
            'nics': [
                {
                    "mac_address": "fa:16:3e:3b:e8:dc",
                    'network': {
                        "id": "ab6a7f2e-c72b-4c8a-a5c2-ddda28973107",
                        'subnet': {
                            "id": "bf4efb22-a40f-4a29-a830-a3ed899c7560",
                        },
                    },
                },
                {
                    "mac_address": "fa:16:3e:1a:fa:b8",
                    'network': {
                        "id": "9455c1f9-15b1-45cd-bdef-b47b14b075cb",
                        'subnet': {
                            "id": "47b53ea3-0377-413c-ad11-4c4eaba41d8b",
                        },
                    },
                },
            ],
        },
    ],
    'networks_mapping': {
        # We only need private networking
        'private': [
            {
                # private
                'vmware_network': {
                    'id': 'd9bd4be8-2488-4bdd-8c01-e05e576228a8',
                    'subnet': {
                        "id": "9cd0b99f-6553-4707-8910-3fe345377a96",
                    },
                },
                # OpenStack tenant-network
                'target_network': {
                    'id': 'ab6a7f2e-c72b-4c8a-a5c2-ddda28973107',
                    'subnet': {
                        "id": "bf4efb22-a40f-4a29-a830-a3ed899c7560",
                    },
                },
            },
            {
                # private1
                'vmware_network': {
                    'id': '6f22610c-c299-40bb-a7dd-bbeb20fbd210',
                    'subnet': {
                        "id": "c7e4904f-4806-4a37-b44d-57e52b7a7828",
                    },
                },
                # OpenStack tenant network
                'target_network': {
                    'id': '9455c1f9-15b1-45cd-bdef-b47b14b075cb.bak',
                    'subnet': {
                        "id": "47b53ea3-0377-413c-ad11-4c4eaba41d8b",
                    },
                },
            },
        ],
    },
    'storage_mapping': [
        {
            'VMware_datastore1': {
                'name': 'datastore1'
              },
            'storage_type1': {
                'name': 'type1'
            },
        },
    ],
  },
}

with open("migration-options.json.schema", "r") as f:
    schema = json.load(f)


validate(instance=migration_options, schema=schema)