def _create_instances(context, db_info, datastore, datastore_version,
instances):
Redis_conf = CONF.get(datastore_version.manager)
num_instances = len(instances)
total_volume_allocation = 0
# Validate and Cache flavors
nova_client = remote.create_nova_client(context)
unique_flavors = set(map(lambda i: i['flavor_id'], instances))
flavor_cache = {}
for fid in unique_flavors:
try:
flavor_cache.update({fid: nova_client.flavors.get(fid)})
except nova_exceptions.NotFound:
raise exception.FlavorNotFound(uuid=fid)
# Checking volumes
name_index = 1
for instance in instances:
if not instance.get('name'):
instance['name'] = "%s-member-%s" % (db_info.name, name_index)
name_index += 1
volume_size = instance.get('volume_size')
if Redis_conf.volume_support:
models.validate_volume_size(volume_size)
total_volume_allocation += volume_size
else:
if volume_size:
raise exception.VolumeNotSupported()
ephemeral_support = Redis_conf.device_path
flavor_id = instance['flavor_id']
flavor = flavor_cache[flavor_id]
if ephemeral_support and flavor.ephemeral == 0:
raise exception.LocalStorageNotSpecified(flavor=flavor_id)
# Check quotas
quota_request = {
'instances': num_instances,
'volumes': total_volume_allocation
}
check_quotas(context.tenant, quota_request)
# Creating member instances
return map(
lambda instance: inst_models.Instance.create(
context,
instance['name'],
instance['flavor_id'],
datastore_version.image_id, [], [],
datastore,
datastore_version,
instance.get('volume_size'),
None,
instance.get('availability_zone', None),
instance.get('nics', None),
configuration_id=None,
cluster_config={
"id": db_info.id,
"instance_type": "member"
}), instances)
def _check_instances(context, instances, datastore_version,
allowed_instance_count=None):
instance_count = len(instances)
if allowed_instance_count:
if instance_count not in allowed_instance_count:
raise exception.ClusterNumInstancesNotSupported(
num_instances=allowed_instance_count
)
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)
volume_sizes = [instance['volume_size'] for instance in instances
if instance.get('volume_size', None)]
if mongo_conf.volume_support:
if len(volume_sizes) != instance_count:
raise exception.ClusterVolumeSizeRequired()
if len(set(volume_sizes)) != 1:
raise exception.ClusterVolumeSizesNotEqual()
volume_size = volume_sizes[0]
models.validate_volume_size(volume_size)
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)
def _create_instances(context, db_info, datastore, datastore_version,
instances, extended_properties, locality):
Redis_conf = CONF.get(datastore_version.manager)
num_instances = len(instances)
total_volume_allocation = 0
# Validate and Cache flavors
nova_client = remote.create_nova_client(context)
unique_flavors = set(map(lambda i: i['flavor_id'], instances))
flavor_cache = {}
for fid in unique_flavors:
try:
flavor_cache.update({fid: nova_client.flavors.get(fid)})
except nova_exceptions.NotFound:
raise exception.FlavorNotFound(uuid=fid)
# Checking volumes
name_index = 1
for instance in instances:
if not instance.get('name'):
instance['name'] = "%s-member-%s" % (db_info.name, name_index)
name_index += 1
volume_size = instance.get('volume_size')
if Redis_conf.volume_support:
models.validate_volume_size(volume_size)
total_volume_allocation += volume_size
else:
if volume_size:
raise exception.VolumeNotSupported()
ephemeral_support = Redis_conf.device_path
flavor_id = instance['flavor_id']
flavor = flavor_cache[flavor_id]
if ephemeral_support and flavor.ephemeral == 0:
raise exception.LocalStorageNotSpecified(flavor=flavor_id)
# Check quotas
quota_request = {'instances': num_instances,
'volumes': total_volume_allocation}
check_quotas(context.tenant, quota_request)
# Creating member instances
return map(lambda instance:
inst_models.Instance.create(context,
instance['name'],
instance['flavor_id'],
datastore_version.image_id,
[], [],
datastore, datastore_version,
instance.get('volume_size'),
None,
instance.get(
'availability_zone', None),
instance.get('nics', None),
configuration_id=None,
cluster_config={
"id": db_info.id,
"instance_type": "member"},
locality=locality
),
instances)
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 _check_instances(context, instances, datastore_version,
allowed_instance_count=None):
instance_count = len(instances)
if allowed_instance_count:
if instance_count not in allowed_instance_count:
raise exception.ClusterNumInstancesNotSupported(
num_instances=allowed_instance_count
)
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 = clients.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)
volume_sizes = [instance['volume_size'] for instance in instances
if instance.get('volume_size', None)]
if mongo_conf.volume_support:
if len(volume_sizes) != instance_count:
raise exception.ClusterVolumeSizeRequired()
if len(set(volume_sizes)) != 1:
raise exception.ClusterVolumeSizesNotEqual()
volume_size = volume_sizes[0]
models.validate_volume_size(volume_size)
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)
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 test_validate_volume_size(self):
self.patch_conf_property('max_accepted_volume_size', 10)
models.validate_volume_size(9)
models.validate_volume_size(10)
self.assertRaises(exception.VolumeQuotaExceeded,
models.validate_volume_size, 11)
self.assertRaises(exception.VolumeSizeNotSpecified,
models.validate_volume_size, None)
def test_validate_volume_size(self):
self.patch_conf_property('max_accepted_volume_size', 10)
models.validate_volume_size(9)
models.validate_volume_size(10)
self.assertRaises(exception.VolumeQuotaExceeded,
models.validate_volume_size, 11)
self.assertRaises(exception.VolumeSizeNotSpecified,
models.validate_volume_size, None)
def create(cls, context, name, datastore, datastore_version, instances, extended_properties):
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,
)
# Creating member instances
for i in range(0, num_instances):
if i == 0:
member_config = {"id": db_info.id, "instance_type": "master"}
else:
member_config = {"id": db_info.id, "instance_type": "member"}
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):
# 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)
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"
member_config = {"id": db_info.id,
"shard_id": utils.generate_uuid(),
"instance_type": "member",
"replica_set_name": replica_set_name}
for i in range(1, num_instances + 1):
instance_name = "%s-%s-%s" % (name, replica_set_name, 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=member_config)
configsvr_config = {"id": db_info.id,
"instance_type": "config_server"}
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"}
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 _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):
# 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)
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"
member_config = {
"id": db_info.id,
"shard_id": utils.generate_uuid(),
"instance_type": "member",
"replica_set_name": replica_set_name
}
for i in range(1, num_instances + 1):
instance_name = "%s-%s-%s" % (name, replica_set_name, 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=member_config)
configsvr_config = {"id": db_info.id, "instance_type": "config_server"}
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"}
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 create(cls, context, name, datastore, datastore_version, instances,
extended_properties):
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)
# Creating member instances
for i in range(0, num_instances):
if i == 0:
member_config = {"id": db_info.id, "instance_type": "master"}
else:
member_config = {"id": db_info.id, "instance_type": "member"}
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_instances(context,
db_info,
datastore,
datastore_version,
instances,
extended_properties,
locality,
new_cluster=True):
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,
locality=locality))
return minstances
def create(cls, context, name, datastore, datastore_version,
instances, extended_properties, locality):
# 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 = (1 if mongo_conf.num_config_servers_per_cluster == 1
else 3)
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]
nic = nics[0]
for n in nics[1:]:
if n != nic:
raise ValueError(_('All cluster nics must be the same. '
'%(nic)s != %(n)s')
% {'nic': nic, 'n': n})
azs = [instance.get('availability_zone', None)
for instance in instances]
regions = [instance.get('region_name', 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"
member_config = {"id": db_info.id,
"shard_id": utils.generate_uuid(),
"instance_type": "member",
"replica_set_name": replica_set_name}
configsvr_config = {"id": db_info.id,
"instance_type": "config_server"}
mongos_config = {"id": db_info.id,
"instance_type": "query_router"}
if mongo_conf.cluster_secure:
cluster_key = base64.b64encode(utils.generate_random_password())
member_config['key'] = cluster_key
configsvr_config['key'] = cluster_key
mongos_config['key'] = cluster_key
for i in range(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=nic,
configuration_id=None,
cluster_config=member_config,
modules=instances[i].get('modules'),
region_name=regions[i],
locality=locality)
for i in range(num_configsvr):
instance_name = "%s-%s-%s" % (name, "configsvr", 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 %
num_instances],
nics=nic,
configuration_id=None,
cluster_config=configsvr_config,
region_name=regions[i % num_instances],
locality=locality)
for i in range(num_mongos):
instance_name = "%s-%s-%s" % (name, "mongos", 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 %
num_instances],
nics=nic,
configuration_id=None,
cluster_config=mongos_config,
region_name=regions[i % num_instances],
locality=locality)
task_api.load(context, datastore_version.manager).create_cluster(
db_info.id)
return MongoDbCluster(context, db_info, datastore, datastore_version)
