def _validate_cluster_instances(context, instances, datastore, datastore_version): """Validate the flavor and volume""" ds_conf = CONF.get(datastore_version.manager) num_instances = len(instances) # Check number of instances is at least min_cluster_member_count if num_instances < ds_conf.min_cluster_member_count: raise exception.ClusterNumInstancesNotLargeEnough( num_instances=ds_conf.min_cluster_member_count) # Checking flavors and get delta for quota check flavor_ids = [instance['flavor_id'] for instance in instances] if len(set(flavor_ids)) != 1: raise exception.ClusterFlavorsNotEqual() flavor_id = flavor_ids[0] nova_client = remote.create_nova_client(context) try: flavor = nova_client.flavors.get(flavor_id) except nova_exceptions.NotFound: raise exception.FlavorNotFound(uuid=flavor_id) deltas = {'instances': num_instances} # Checking volumes and get delta for quota check volume_sizes = [instance['volume_size'] for instance in instances if instance.get('volume_size', None)] volume_size = None if ds_conf.volume_support: if len(volume_sizes) != num_instances: raise exception.ClusterVolumeSizeRequired() if len(set(volume_sizes)) != 1: raise exception.ClusterVolumeSizesNotEqual() volume_size = volume_sizes[0] cluster_models.validate_volume_size(volume_size) deltas['volumes'] = volume_size * num_instances else: if len(volume_sizes) > 0: raise exception.VolumeNotSupported() ephemeral_support = ds_conf.device_path if ephemeral_support and flavor.ephemeral == 0: raise exception.LocalStorageNotSpecified(flavor=flavor_id) # quota check check_quotas(context.tenant, deltas) # Checking networks are same for the cluster instance_nics = [] for instance in instances: nics = instance.get('nics') if nics: instance_nics.append(nics[0].get('net-id')) if len(set(instance_nics)) > 1: raise exception.ClusterNetworksNotEqual() if not instance_nics: return instance_nic = instance_nics[0] try: nova_client.networks.get(instance_nic) except nova_exceptions.NotFound: raise exception.NetworkNotFound(uuid=instance_nic)
def validate_instance_nics(context, instances): """Checking networks are same for the cluster.""" instance_nics = [] for instance in instances: nics = instance.get('nics') if nics: instance_nics.append(nics[0].get('net-id')) if len(set(instance_nics)) > 1: raise exception.ClusterNetworksNotEqual() if not instance_nics: return instance_nic = instance_nics[0] try: neutron_client = remote.create_neutron_client(context) neutron_client.find_resource('network', instance_nic) except neutron_exceptions.NotFound: raise exception.NetworkNotFound(uuid=instance_nic)
def _validate_cluster_instances(context, instances, datastore, datastore_version): """Validate the flavor and volume""" ds_conf = CONF.get(datastore_version.manager) num_instances = len(instances) # Check number of instances is at least min_cluster_member_count if num_instances < ds_conf.min_cluster_member_count: raise exception.ClusterNumInstancesNotLargeEnough( num_instances=ds_conf.min_cluster_member_count) # Checking volumes and get delta for quota check cluster_models.validate_instance_flavors(context, instances, ds_conf.volume_support, ds_conf.device_path) req_volume_size = cluster_models.get_required_volume_size( instances, ds_conf.volume_support) cluster_models.assert_homogeneous_cluster(instances) deltas = {'instances': num_instances, 'volumes': req_volume_size} # quota check check_quotas(context.tenant, deltas) # Checking networks are same for the cluster instance_nics = [] for instance in instances: nics = instance.get('nics') if nics: instance_nics.append(nics[0].get('net-id')) if len(set(instance_nics)) > 1: raise exception.ClusterNetworksNotEqual() if not instance_nics: return instance_nic = instance_nics[0] try: nova_client = remote.create_nova_client(context) nova_client.networks.get(instance_nic) except nova_exceptions.NotFound: raise exception.NetworkNotFound(uuid=instance_nic)