def _create_instances(context, db_info, datastore, datastore_version, instances, new_cluster): vertica_conf = CONF.get(datastore_version.manager) num_instances = len(instances) existing = inst_models.DBInstance.find_all(cluster_id=db_info.id).all() num_existing = len(existing) # Matching number of instances with configured cluster_member_count if new_cluster \ and num_instances != vertica_conf.cluster_member_count: raise exception.ClusterNumInstancesNotSupported( num_instances=vertica_conf.cluster_member_count) # Checking flavors 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 volume_sizes = [ instance['volume_size'] for instance in instances if instance.get('volume_size', None) ] volume_size = None if vertica_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] models.validate_volume_size(volume_size) deltas['volumes'] = volume_size * num_instances else: if len(volume_sizes) > 0: raise exception.VolumeNotSupported() ephemeral_support = vertica_conf.device_path if ephemeral_support and flavor.ephemeral == 0: raise exception.LocalStorageNotSpecified(flavor=flavor_id) check_quotas(context.tenant, deltas) nics = [instance.get('nics', None) for instance in instances] azs = [ instance.get('availability_zone', None) for instance in instances ] # Creating member instances minstances = [] for i in range(0, num_instances): if i == 0 and new_cluster: member_config = {"id": db_info.id, "instance_type": "master"} else: member_config = {"id": db_info.id, "instance_type": "member"} instance_name = "%s-member-%s" % (db_info.name, str(i + num_existing + 1)) minstances.append( inst_models.Instance.create(context, instance_name, flavor_id, datastore_version.image_id, [], [], datastore, datastore_version, volume_size, None, nics=nics[i], availability_zone=azs[i], configuration_id=None, cluster_config=member_config)) return minstances
def create(cls, context, name, datastore, datastore_version, instances): LOG.debug("Initiating cluster creation.") vertica_conf = CONF.get(datastore_version.manager) num_instances = len(instances) # Matching number of instances with configured cluster_member_count if num_instances != vertica_conf.cluster_member_count: raise exception.ClusterNumInstancesNotSupported( num_instances=vertica_conf.cluster_member_count) # Checking flavors 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 volume_sizes = [ instance['volume_size'] for instance in instances if instance.get('volume_size', None) ] volume_size = None if vertica_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] models.validate_volume_size(volume_size) deltas['volumes'] = volume_size * num_instances else: if len(volume_sizes) > 0: raise exception.VolumeNotSupported() ephemeral_support = vertica_conf.device_path if ephemeral_support and flavor.ephemeral == 0: raise exception.LocalStorageNotSpecified(flavor=flavor_id) check_quotas(context.tenant, deltas) nics = [instance.get('nics', None) for instance in instances] azs = [ instance.get('availability_zone', None) for instance in instances ] # Updating Cluster Task db_info = models.DBCluster.create( name=name, tenant_id=context.tenant, datastore_version_id=datastore_version.id, task_status=ClusterTasks.BUILDING_INITIAL) member_config = {"id": db_info.id, "instance_type": "member"} # Creating member instances for i in range(0, num_instances): instance_name = "%s-member-%s" % (name, str(i + 1)) inst_models.Instance.create(context, instance_name, flavor_id, datastore_version.image_id, [], [], datastore, datastore_version, volume_size, None, nics=nics[i], availability_zone=azs[i], configuration_id=None, cluster_config=member_config) # Calling taskmanager to further proceed for cluster-configuration task_api.load(context, datastore_version.manager).create_cluster(db_info.id) return VerticaCluster(context, db_info, datastore, datastore_version)
def create(cls, context, name, datastore, datastore_version, instances, extended_properties): # TODO(amcreynolds): consider moving into CONF and even supporting # TODO(amcreynolds): an array of values, e.g. [3, 5, 7] # TODO(amcreynolds): or introduce a min/max num_instances and set # TODO(amcreynolds): both to 3 num_instances = len(instances) if num_instances != 3: raise exception.ClusterNumInstancesNotSupported(num_instances=3) 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) mongo_conf = CONF.get(datastore_version.manager) num_configsvr = mongo_conf.num_config_servers_per_cluster num_mongos = mongo_conf.num_query_routers_per_cluster delta_instances = num_instances + num_configsvr + num_mongos deltas = {'instances': delta_instances} volume_sizes = [ instance['volume_size'] for instance in instances if instance.get('volume_size', None) ] volume_size = None if mongo_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] models.validate_volume_size(volume_size) # TODO(amcreynolds): for now, mongos+configsvr same flavor+disk deltas['volumes'] = volume_size * delta_instances else: # TODO(amcreynolds): is ephemeral possible for mongodb clusters? if len(volume_sizes) > 0: raise exception.VolumeNotSupported() ephemeral_support = mongo_conf.device_path if ephemeral_support and flavor.ephemeral == 0: raise exception.LocalStorageNotSpecified(flavor=flavor_id) check_quotas(context.tenant, deltas) nics = [instance.get('nics', None) for instance in instances] azs = [ instance.get('availability_zone', None) for instance in instances ] db_info = models.DBCluster.create( name=name, tenant_id=context.tenant, datastore_version_id=datastore_version.id, task_status=ClusterTasks.BUILDING_INITIAL) replica_set_name = "rs1" key = utils.generate_random_password() member_config = { "id": db_info.id, "shard_id": utils.generate_uuid(), "instance_type": "member", "replica_set_name": replica_set_name, "key": key } for i in range(0, num_instances): instance_name = "%s-%s-%s" % (name, replica_set_name, str(i + 1)) inst_models.Instance.create(context, instance_name, flavor_id, datastore_version.image_id, [], [], datastore, datastore_version, volume_size, None, availability_zone=azs[i], nics=nics[i], configuration_id=None, cluster_config=member_config) configsvr_config = { "id": db_info.id, "instance_type": "config_server", "key": key } for i in range(1, num_configsvr + 1): instance_name = "%s-%s-%s" % (name, "configsvr", str(i)) inst_models.Instance.create(context, instance_name, flavor_id, datastore_version.image_id, [], [], datastore, datastore_version, volume_size, None, availability_zone=None, nics=None, configuration_id=None, cluster_config=configsvr_config) mongos_config = { "id": db_info.id, "instance_type": "query_router", "key": key } for i in range(1, num_mongos + 1): instance_name = "%s-%s-%s" % (name, "mongos", str(i)) inst_models.Instance.create(context, instance_name, flavor_id, datastore_version.image_id, [], [], datastore, datastore_version, volume_size, None, availability_zone=None, nics=None, configuration_id=None, cluster_config=mongos_config) task_api.load(context, datastore_version.manager).create_cluster(db_info.id) return MongoDbCluster(context, db_info, datastore, datastore_version)
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)