octavia.db package

Submodules

octavia.db.api module

get_engine()

get_session()

Helper method to grab session.

session()

wait_for_connection(exit_event)

Helper method to wait for DB connection

octavia.db.base_models module

class IdMixin

Bases: object

Id mixin, add to subclasses that have an id.

id = Column(None, String(length=36), table=None, primary_key=True, nullable=False, default=CallableColumnDefault(<function generate_uuid>))

class LookupTableMixin

Bases: object

Mixin to add to classes that are lookup tables.

description = Column(None, String(length=255), table=None)

name = Column(None, String(length=255), table=None, primary_key=True, nullable=False)

class NameMixin

Bases: object

Name mixin to add to classes which need a name.

name = Column(None, String(length=255), table=None)

class OctaviaBase

Bases: ModelBase

static apply_filter(query, model, filters)

to_data_model(_graph_nodes=None, recursion_depth: int | None = None)

Converts to a data model graph.

In order to make the resulting data model graph usable no matter how many internal references are followed, we generate a complete graph of OctaviaBase nodes connected to the object passed to this method.

Parameters:

• _graph_nodes – Used only for internal recursion of this method. Should not be called from the outside. Contains a dictionary of all OctaviaBase type objects in the generated graph

• recursion_depth – Used only for configuring recursion. This option allows to limit recursion depth. It could be used when we need only main node and its first level relationships. It allows to save time on recursion calls for huge graphs, when only main object is necessary.

class ProjectMixin

Bases: object

Tenant mixin, add to subclasses that have a project.

project_id = Column(None, String(length=36), table=None)

class TagMixin

Bases: object

Tags mixin to add to classes which need tags.

The class must realize the specified db relationship as well.

property tags

class Tags(**kwargs)

Bases: Base

resource_id

tag

octavia.db.healthcheck module

check_database_connection(session)

This is a simple database connection check function.

It will do a simple no-op query (low overhead) against the sqlalchemy session passed in.

Parameters:

session – A Sql Alchemy database session.

Returns:

True if the connection check is successful, False if not.

octavia.db.models module

class AdditionalVip(**kwargs)

Bases: Base

ip_address

load_balancer

load_balancer_id

network_id

port_id

subnet_id

class Algorithm(**kwargs)

Bases: Base, LookupTableMixin

description

name

class Amphora(**kwargs)

Bases: Base, IdMixin, TimestampMixin

cached_zone

cert_busy

cert_expiration

compute_flavor

compute_id

created_at

ha_ip

ha_port_id

id

image_id

lb_network_ip

load_balancer

load_balancer_id

role

status

updated_at

vrrp_id

vrrp_interface

vrrp_ip

vrrp_port_id

vrrp_priority

class AmphoraBuildRequest(**kwargs)

Bases: Base

amphora_id

created_time

priority

status

class AmphoraBuildSlots(**kwargs)

Bases: Base

id

slots_used

class AmphoraHealth(**kwargs)

Bases: Base

amphora_id

busy

last_update

class AmphoraRoles(**kwargs)

Bases: Base, LookupTableMixin

description

name

class AvailabilityZone(**kwargs)

Bases: Base, NameMixin

availability_zone_profile: Mapped[AvailabilityZoneProfile]

availability_zone_profile_id

description

enabled

name

class AvailabilityZoneProfile(**kwargs)

Bases: Base, IdMixin, NameMixin

availability_zone_data

id

name

provider_name

class ClientAuthenticationMode(**kwargs)

Bases: Base

name

class Flavor(**kwargs)

Bases: Base, IdMixin, NameMixin

description

enabled

flavor_profile: Mapped[FlavorProfile]

flavor_profile_id

id

name

class FlavorProfile(**kwargs)

Bases: Base, IdMixin, NameMixin

flavor_data

id

name

provider_name

class HealthMonitor(**kwargs)

Bases: Base, IdMixin, ProjectMixin, TimestampMixin, NameMixin, TagMixin

created_at

delay

domain_name

enabled

expected_codes

fall_threshold

http_method

http_version

id

name

operating_status

pool

pool_id

project_id

provisioning_status

rise_threshold

timeout

type

updated_at

url_path

class HealthMonitorType(**kwargs)

Bases: Base, LookupTableMixin

description

name

class L7Policy(**kwargs)

Bases: Base, IdMixin, ProjectMixin, TimestampMixin, NameMixin, TagMixin

action

created_at

description

enabled

id

l7rules

listener

listener_id

name

operating_status

position

project_id

provisioning_status

redirect_http_code

redirect_pool

redirect_pool_id

redirect_prefix

redirect_url

updated_at

class L7PolicyAction(**kwargs)

Bases: Base, LookupTableMixin

description

name

class L7Rule(**kwargs)

Bases: Base, IdMixin, ProjectMixin, TimestampMixin, TagMixin

compare_type

created_at

enabled

id

invert

key

l7policy

l7policy_id

operating_status

project_id

provisioning_status

type

updated_at

value

class L7RuleCompareType(**kwargs)

Bases: Base, LookupTableMixin

description

name

class L7RuleType(**kwargs)

Bases: Base, LookupTableMixin

description

name

class LBTopology(**kwargs)

Bases: Base, LookupTableMixin

description

name

class Listener(**kwargs)

Bases: Base, IdMixin, ProjectMixin, TimestampMixin, NameMixin, TagMixin

allowed_cidrs

alpn_protocols

client_authentication

client_ca_tls_certificate_id

client_crl_container_id

connection_limit

created_at

default_pool

default_pool_id

description

enabled

hsts_include_subdomains

hsts_max_age

hsts_preload

id

insert_headers

l7policies

load_balancer

load_balancer_id

name

operating_status

peer_port

property pools

project_id

protocol

protocol_port

provisioning_status

sni_containers

timeout_client_data

timeout_member_connect

timeout_member_data

timeout_tcp_inspect

tls_certificate_id

tls_ciphers

tls_versions

updated_at

class ListenerCidr(**kwargs)

Bases: Base

cidr

listener

listener_id

class ListenerStatistics(**kwargs)

Bases: Base

active_connections

amphora_id

bytes_in

bytes_out

listener_id

request_errors

total_connections

validate_non_negative_int(key, value)

class LoadBalancer(**kwargs)

Bases: Base, IdMixin, ProjectMixin, TimestampMixin, NameMixin, TagMixin

additional_vips

amphorae

availability_zone

created_at

description

enabled

flavor: Mapped[Flavor]

flavor_id

id

listeners

name

operating_status

pools

project_id

provider

provisioning_status

server_group_id

topology

updated_at

vip

vrrp_group

class Member(**kwargs)

Bases: Base, IdMixin, ProjectMixin, TimestampMixin, NameMixin, TagMixin

backup

created_at

enabled

id

ip_address

monitor_address

monitor_port

name

operating_status

pool

pool_id

project_id

protocol_port

provisioning_status

subnet_id

updated_at

weight

class OperatingStatus(**kwargs)

Bases: Base, LookupTableMixin

description

name

class Pool(**kwargs)

Bases: Base, IdMixin, ProjectMixin, TimestampMixin, NameMixin, TagMixin

alpn_protocols

ca_tls_certificate_id

created_at

crl_container_id

description

enabled

health_monitor

id

l7policies

lb_algorithm

property listeners

load_balancer

load_balancer_id

members

name

operating_status

project_id

protocol

provisioning_status

session_persistence

tls_certificate_id

tls_ciphers

tls_enabled

tls_versions

updated_at

class Protocol(**kwargs)

Bases: Base, LookupTableMixin

description

name

class ProvisioningStatus(**kwargs)

Bases: Base, LookupTableMixin

description

name

class Quotas(**kwargs)

Bases: Base

health_monitor

in_use_health_monitor

in_use_l7policy

in_use_l7rule

in_use_listener

in_use_load_balancer

in_use_member

in_use_pool

l7policy

l7rule

listener

load_balancer

member

pool

project_id

class SNI(**kwargs)

Bases: Base

listener

listener_id

position

tls_container_id

class SessionPersistence(**kwargs)

Bases: Base

cookie_name

persistence_granularity

persistence_timeout

pool

pool_id

type

class SessionPersistenceType(**kwargs)

Bases: Base, LookupTableMixin

description

name

class VRRPAuthMethod(**kwargs)

Bases: Base, LookupTableMixin

description

name

class VRRPGroup(**kwargs)

Bases: Base

advert_int

load_balancer

load_balancer_id

vrrp_auth_pass

vrrp_auth_type

vrrp_group_name

class Vip(**kwargs)

Bases: Base

ip_address

load_balancer

load_balancer_id

network_id

octavia_owned

port_id

qos_policy_id

subnet_id

vnic_type

octavia.db.prepare module

create_health_monitor(hm_dict, pool_id=None)

create_l7policy(l7policy_dict, lb_id, listener_id)

create_l7rule(l7rule_dict, l7policy_id)

create_listener(listener_dict, lb_id)

create_load_balancer(lb_dict)

create_member(member_dict, pool_id, has_health_monitor=False)

create_pool(pool_dict, lb_id=None)

octavia.db.repositories module

Defines interface for DB access that Resource or Octavia Controllers may reference

class AdditionalVipRepository

Bases: BaseRepository

model_class

alias of AdditionalVip

update(session, load_balancer_id, subnet_id, **model_kwargs)

Updates an additional vip entity in the database.

Uses load_balancer_id + subnet_id.

class AmphoraBuildReqRepository

Bases: BaseRepository

add_to_build_queue(session, amphora_id=None, priority=None)

Adds the build request to the table.

delete_all(session)

Deletes all the build requests.

get_highest_priority_build_req(session)

Fetches build request with highest priority and least created_time.

priority 20 = failover (highest) priority 40 = create_loadbalancer (lowest) :param session: A Sql Alchemy database session. :returns amphora_id corresponding to highest priority and least created time in ‘WAITING’ status.

model_class

alias of AmphoraBuildRequest

update_req_status(session, amphora_id=None)

Updates the request status.

class AmphoraBuildSlotsRepository

Bases: BaseRepository

get_used_build_slots_count(session)

Gets the number of build slots in use.

Returns:

Number of current build slots.

model_class

alias of AmphoraBuildSlots

update_count(session, action='increment')

Increments/Decrements/Resets the number of build_slots used.

class AmphoraHealthRepository

Bases: BaseRepository

check_amphora_health_expired(session, amphora_id, exp_age=None)

check if a specific amphora is expired in the amphora_health table

Parameters:

• session – A Sql Alchemy database session.

• amphora_id – id of an amphora object

• exp_age – A standard datetime delta which is used to see for how long can an amphora live without updates before it is considered expired (default: CONF.house_keeping.amphora_expiry_age)

Returns:

boolean

get_stale_amphora(lock_session: Session) → Amphora | None

Retrieves a stale amphora from the health manager database.

Parameters:

lock_session – A Sql Alchemy database autocommit session.

Returns:

[octavia.common.data_model]

model_class

alias of AmphoraHealth

replace(session, amphora_id, **model_kwargs)

replace or insert amphora into database.

update(session, amphora_id, **model_kwargs)

Updates a healthmanager entity in the database by amphora_id.

update_failover_stopped(lock_session: ~sqlalchemy.orm.session.Session, expired_time: <module 'datetime' from '/usr/lib/python3.10/datetime.py'>) → None

Updates the status of amps that are FAILOVER_STOPPED.

class AmphoraRepository

Bases: BaseRepository

allocate_and_associate(session, load_balancer_id, availability_zone=None)

Allocate an amphora for a load balancer.

For v0.5 this is simple, find a free amp and associate the lb. In the future this needs to be enhanced.

Parameters:

• session – A Sql Alchemy database session.

• load_balancer_id – The load balancer id to associate

Returns:

The amphora ID for the load balancer or None

associate(session, load_balancer_id, amphora_id)

Associates an amphora with a load balancer.

Parameters:

• session – A Sql Alchemy database session.

• load_balancer_id – The load balancer id to associate

• amphora_id – The amphora id to associate

get_all_API_list(session, pagination_helper=None, **filters)

Get a list of amphorae for the API list call.

This get_all returns a data set that is only one level deep in the data graph. This is an optimized query for the API amphora list method.

Parameters:

• session – A Sql Alchemy database session.

• pagination_helper – Helper to apply pagination and sorting.

• filters – Filters to decide which entities should be retrieved.

Returns:

[octavia.common.data_model]

get_cert_expiring_amphora(session)

Retrieves an amphora whose cert is close to expiring..

Parameters:

session – A Sql Alchemy database session.

Returns:

one amphora with expiring certificate

static get_lb_for_amphora(session, amphora_id)

Get all of the load balancers on an amphora.

Parameters:

• session – A Sql Alchemy database session.

• amphora_id – The amphora id to list the load balancers from

Returns:

[octavia.common.data_model]

get_lb_for_health_update(session, amphora_id)

This method is for the health manager status update process.

This is a time sensitive query that occurs often. It is an explicit query as the ORM produces a poorly optimized query.

Use extreme caution making any changes to this query as it can impact the scalability of the health manager. All changes should be analyzed using SQL “EXPLAIN” to make sure only indexes are being used. Changes should also be evaluated using the stressHM tool.

Note: The returned object is flat and not a graph representation

of the load balancer as it is not needed. This is on purpose to optimize the processing time. This is not in the normal data model objects.

Parameters:

• session – A Sql Alchemy database session.

• amphora_id – The amphora ID to lookup the load balancer for.

Returns:

A dictionary containing the required load balancer details.

model_class

alias of Amphora

test_and_set_status_for_delete(lock_session, id)

Tests and sets an amphora status.

Puts a lock on the amphora table to check the status of the amphora. The status must be either AMPHORA_READY or ERROR to successfully update the amphora status.

Parameters:

• lock_session – A Sql Alchemy database session.

• id – id of Load Balancer

Raises:

• ImmutableObject – The amphora is not in a state that can be deleted.

• NoResultFound – The amphora was not found or already deleted.

Returns:

None

class AvailabilityZoneProfileRepository

Bases: _GetALLExceptDELETEDIdMixin, BaseRepository

model_class

alias of AvailabilityZoneProfile

class AvailabilityZoneRepository

Bases: _GetALLExceptDELETEDIdMixin, BaseRepository

delete(serial_session, **filters)

Special delete method for availability_zone.

Sets DELETED LBs availability_zone to NIL_UUID, then removes the availability_zone.

Parameters:

• serial_session – A Sql Alchemy database transaction session.

• filters – Filters to decide which entity should be deleted.

Returns:

None

Raises:

odb_exceptions.DBReferenceError

Raises:

sqlalchemy.orm.exc.NoResultFound

get_availability_zone_metadata_dict(session, availability_zone_name)

get_availability_zone_provider(session, availability_zone_name)

model_class

alias of AvailabilityZone

update(session, name, **model_kwargs)

Updates an entity in the database.

Parameters:

• session – A Sql Alchemy database session.

• model_kwargs – Entity attributes that should be updates.

Returns:

octavia.common.data_model

class BaseRepository

Bases: object

count(session, **filters)

Retrieves a count of entities from the database.

Parameters:

• session – A Sql Alchemy database session.

• filters – Filters to decide which entities should be retrieved.

Returns:

int

create(session, **model_kwargs)

Base create method for a database entity.

Parameters:

• session – A Sql Alchemy database session.

• model_kwargs – Attributes of the model to insert.

Returns:

octavia.common.data_model

delete(session, **filters)

Deletes an entity from the database.

Parameters:

• session – A Sql Alchemy database session.

• filters – Filters to decide which entity should be deleted.

Returns:

None

Raises:

sqlalchemy.orm.exc.NoResultFound

delete_batch(session, ids=None)

Batch deletes by entity ids.

exists(session, id)

Determines whether an entity exists in the database by its id.

Parameters:

• session – A Sql Alchemy database session.

• id – id of entity to check for existence.

Returns:

octavia.common.data_model

get(session, limited_graph=False, **filters)

Retrieves an entity from the database.

Parameters:

• session – A Sql Alchemy database session.

• limited_graph – Option controls number of processed nodes in the graph. Default (with False) behaviour is recursion iteration through all nodes in the graph via to_data_model. With True value recursion will stop at the first child node. It means, that only limited number of nodes be converted. This logic could be used for specific cases, where information about full graph is unnecessary.

• filters – Filters to decide which entity should be retrieved.

Returns:

octavia.common.data_model

get_all(session, pagination_helper=None, query_options=None, limited_graph=False, **filters)

Retrieves a list of entities from the database.

Parameters:

• session – A Sql Alchemy database session.

• pagination_helper – Helper to apply pagination and sorting.

• query_options – Optional query options to apply.

• limited_graph – Option controls number of processed nodes in the graph. Default (with False) behaviour is recursion iteration through all nodes in the graph via to_data_model. With True value recursion will stop at the first child node. It means, that only limited number of nodes be converted. This logic could be used for specific cases, where information about full graph is unnecessary.

• filters – Filters to decide which entities should be retrieved.

Returns:

[octavia.common.data_model]

get_all_deleted_expiring(session, exp_age)

Get all previously deleted resources that are now expiring.

Parameters:

• session – A Sql Alchemy database session.

• exp_age – A standard datetime delta which is used to see for how long can a resource live without updates before it is considered expired

Returns:

A list of resource IDs

model_class = None

update(session, id, **model_kwargs)

Updates an entity in the database.

Parameters:

• session – A Sql Alchemy database session.

• model_kwargs – Entity attributes that should be updates.

Returns:

octavia.common.data_model

class FlavorProfileRepository

Bases: _GetALLExceptDELETEDIdMixin, BaseRepository

model_class

alias of FlavorProfile

class FlavorRepository

Bases: _GetALLExceptDELETEDIdMixin, BaseRepository

delete(serial_session, **filters)

Sets DELETED LBs flavor_id to NIL_UUID, then removes the flavor

Parameters:

• serial_session – A Sql Alchemy database transaction session.

• filters – Filters to decide which entity should be deleted.

Returns:

None

Raises:

odb_exceptions.DBReferenceError

Raises:

sqlalchemy.orm.exc.NoResultFound

get_flavor_metadata_dict(session, flavor_id)

get_flavor_provider(session, flavor_id)

model_class

alias of Flavor

class HealthMonitorRepository

Bases: BaseRepository

get_all_API_list(session, pagination_helper=None, **filters)

Get a list of health monitors for the API list call.

This get_all returns a data set that is only one level deep in the data graph. This is an optimized query for the API health monitor list method.

Parameters:

• session – A Sql Alchemy database session.

• pagination_helper – Helper to apply pagination and sorting.

• filters – Filters to decide which entities should be retrieved.

Returns:

[octavia.common.data_model]

model_class

alias of HealthMonitor

class L7PolicyRepository

Bases: BaseRepository

create(session, **model_kwargs)

Base create method for a database entity.

Parameters:

• session – A Sql Alchemy database session.

• model_kwargs – Attributes of the model to insert.

Returns:

octavia.common.data_model

delete(session, id, **filters)

Deletes an entity from the database.

Parameters:

• session – A Sql Alchemy database session.

• filters – Filters to decide which entity should be deleted.

Returns:

None

Raises:

sqlalchemy.orm.exc.NoResultFound

get_all(session, pagination_helper=None, **filters)

Retrieves a list of entities from the database.

Parameters:

• session – A Sql Alchemy database session.

• pagination_helper – Helper to apply pagination and sorting.

• query_options – Optional query options to apply.

• limited_graph – Option controls number of processed nodes in the graph. Default (with False) behaviour is recursion iteration through all nodes in the graph via to_data_model. With True value recursion will stop at the first child node. It means, that only limited number of nodes be converted. This logic could be used for specific cases, where information about full graph is unnecessary.

• filters – Filters to decide which entities should be retrieved.

Returns:

[octavia.common.data_model]

get_all_API_list(session, pagination_helper=None, **filters)

model_class

alias of L7Policy

update(session, id, **model_kwargs)

Updates an entity in the database.

Parameters:

• session – A Sql Alchemy database session.

• model_kwargs – Entity attributes that should be updates.

Returns:

octavia.common.data_model

class L7RuleRepository

Bases: BaseRepository

create(session, **model_kwargs)

Base create method for a database entity.

Parameters:

• session – A Sql Alchemy database session.

• model_kwargs – Attributes of the model to insert.

Returns:

octavia.common.data_model

get_all_API_list(session, pagination_helper=None, **filters)

Get a list of L7 Rules for the API list call.

This get_all returns a data set that is only one level deep in the data graph. This is an optimized query for the API L7 Rule list method.

Parameters:

• session – A Sql Alchemy database session.

• pagination_helper – Helper to apply pagination and sorting.

• filters – Filters to decide which entities should be retrieved.

Returns:

[octavia.common.data_model]

model_class

alias of L7Rule

update(session, id, **model_kwargs)

Updates an entity in the database.

Parameters:

• session – A Sql Alchemy database session.

• model_kwargs – Entity attributes that should be updates.

Returns:

octavia.common.data_model

class ListenerCidrRepository

Bases: BaseRepository

create(session, listener_id, allowed_cidrs)

Base create method for a database entity.

Parameters:

• session – A Sql Alchemy database session.

• model_kwargs – Attributes of the model to insert.

Returns:

octavia.common.data_model

model_class

alias of ListenerCidr

update(session, listener_id, allowed_cidrs)

Updates allowed CIDRs in the database by listener_id.

class ListenerRepository

Bases: BaseRepository

create(session, **model_kwargs)

Creates a new Listener with some validation.

get_all_API_list(session, pagination_helper=None, **filters)

Get a list of listeners for the API list call.

This get_all returns a data set that is only one level deep in the data graph. This is an optimized query for the API listener list method.

Parameters:

• session – A Sql Alchemy database session.

• pagination_helper – Helper to apply pagination and sorting.

• filters – Filters to decide which entities should be retrieved.

Returns:

[octavia.common.data_model]

get_port_protocol_cidr_for_lb(session, loadbalancer_id)

has_default_pool(session, id)

Checks if a listener has a default pool.

model_class

alias of Listener

prov_status_active_if_not_error(session, listener_id)

Update provisioning_status to ACTIVE if not already in ERROR.

update(session, id, **model_kwargs)

Updates an entity in the database.

Parameters:

• session – A Sql Alchemy database session.

• model_kwargs – Entity attributes that should be updates.

Returns:

octavia.common.data_model

class ListenerStatisticsRepository

Bases: BaseRepository

increment(session, delta_stats)

Updates a listener’s statistics, incrementing by the passed deltas.

Parameters:

• session – A Sql Alchemy database session

• delta_stats (octavia.common.data_models.ListenerStatistics) – Listener statistics deltas to add

model_class

alias of ListenerStatistics

replace(session, stats_obj)

Create or override a listener’s statistics (insert/update)

Parameters:

• session – A Sql Alchemy database session

• stats_obj (octavia.common.data_models.ListenerStatistics) – Listener statistics object to store

update(session, listener_id, **model_kwargs)

Updates a listener’s statistics, overriding with the passed values.

Parameters:

• session – A Sql Alchemy database session

• listener_id (str) – The UUID of the listener to update

• model_kwargs – Entity attributes that should be updated

class LoadBalancerRepository

Bases: BaseRepository

get_all_API_list(session, pagination_helper=None, **filters)

Get a list of load balancers for the API list call.

This get_all returns a data set that is only one level deep in the data graph. This is an optimized query for the API load balancer list method.

Parameters:

• session – A Sql Alchemy database session.

• pagination_helper – Helper to apply pagination and sorting.

• filters – Filters to decide which entities should be retrieved.

Returns:

[octavia.common.data_model]

model_class

alias of LoadBalancer

set_status_for_failover(session, id, status, raise_exception=False)

Tests and sets a load balancer provisioning status.

Puts a lock on the load balancer table to check the status of a load balancer. If the status is ACTIVE or ERROR then the status of the load balancer is updated and the method returns True. If the status is not ACTIVE, then nothing is done and False is returned.

Parameters:

• session – A Sql Alchemy database session.

• id – id of Load Balancer

• status – Status to set Load Balancer if check passes.

• raise_exception – If True, raise ImmutableObject on failure

Returns:

bool

test_and_set_provisioning_status(session, id, status, raise_exception=False)

Tests and sets a load balancer and provisioning status.

Puts a lock on the load balancer table to check the status of a load balancer. If the status is ACTIVE then the status of the load balancer is updated and the method returns True. If the status is not ACTIVE, then nothing is done and False is returned.

Parameters:

• session – A Sql Alchemy database session.

• id – id of Load Balancer

• status – Status to set Load Balancer if check passes.

• raise_exception – If True, raise ImmutableObject on failure

Returns:

bool

class MemberRepository

Bases: BaseRepository

delete_members(session, member_ids)

Batch deletes members from a pool.

get_all_API_list(session, pagination_helper=None, limited_graph=False, **filters)

Get a list of members for the API list call.

This get_all returns a data set that is only one level deep in the data graph. This is an optimized query for the API member list method.

Parameters:

• session – A Sql Alchemy database session.

• pagination_helper – Helper to apply pagination and sorting.

• limited_graph – Option to avoid recursion iteration through all nodes in the graph via to_data_model

• filters – Filters to decide which entities should be retrieved.

Returns:

[octavia.common.data_model]

model_class

alias of Member

update_pool_members(session, pool_id, **model_kwargs)

Updates all of the members of a pool.

Parameters:

• session – A Sql Alchemy database session.

• pool_id – ID of the pool to update members on.

• model_kwargs – Entity attributes that should be updates.

Returns:

octavia.common.data_model

class PoolRepository

Bases: BaseRepository

get_all_API_list(session, pagination_helper=None, **filters)

Get a list of pools for the API list call.

This get_all returns a data set that is only one level deep in the data graph. This is an optimized query for the API pool list method.

Parameters:

• session – A Sql Alchemy database session.

• pagination_helper – Helper to apply pagination and sorting.

• filters – Filters to decide which entities should be retrieved.

Returns:

[octavia.common.data_model]

get_children_count(session, pool_id)

model_class

alias of Pool

class QuotasRepository

Bases: BaseRepository

delete(session, project_id)

Deletes an entity from the database.

Parameters:

• session – A Sql Alchemy database session.

• filters – Filters to decide which entity should be deleted.

Returns:

None

Raises:

sqlalchemy.orm.exc.NoResultFound

ensure_project_exists(project_id)

model_class

alias of Quotas

update(session, project_id, **model_kwargs)

Updates an entity in the database.

Parameters:

• session – A Sql Alchemy database session.

• model_kwargs – Entity attributes that should be updates.

Returns:

octavia.common.data_model

class Repositories

Bases: object

check_quota_met(session: Session, _class, project_id, count=1)

Checks and updates object quotas.

This method makes sure the project has available quota for the resource and updates the quota to reflect the new ussage.

Parameters:

• session – Context database session

• _class – Data model object requesting quota

• project_id – Project ID requesting quota

• count – Number of objects we’re going to create (default=1)

Returns:

True if quota is met, False if quota was available

create_load_balancer_and_vip(session, lb_dict, vip_dict, additional_vip_dicts=None)

Inserts load balancer and vip entities into the database.

Inserts load balancer and vip entities into the database in one transaction and returns the data model of the load balancer.

Parameters:

• session – A Sql Alchemy database session.

• lb_dict – Dictionary representation of a load balancer

• vip_dict – Dictionary representation of a vip

• additional_vip_dicts – Dict representations of additional vips

Returns:

octavia.common.data_models.LoadBalancer

create_pool_on_load_balancer(session, pool_dict, listener_id=None)

Inserts a pool and session persistence entity into the database.

Parameters:

• session – A Sql Alchemy database session.

• pool_dict – Dictionary representation of a pool

• listener_id – Optional listener id that will reference this pool as its default_pool_id

Returns:

octavia.common.data_models.Pool

decrement_quota(lock_session, _class, project_id, quantity=1)

Decrements the object quota for a project

Parameters:

• lock_session – Locking database session (autocommit=False)

• _class – Data model object to decrement quota

• project_id – Project ID to decrement quota on

• quantity – Quantity of quota to decrement

Returns:

None

get_amphora_stats(session, amp_id)

Gets the statistics for all listeners on an amphora.

Parameters:

• session – A Sql Alchemy database session.

• amp_id – The amphora ID to query.

Returns:

An amphora stats dictionary

test_and_set_lb_and_listeners_prov_status(session, lb_id, lb_prov_status, listener_prov_status, listener_ids=None, pool_id=None, l7policy_id=None)

Tests and sets a load balancer and listener provisioning status.

Puts a lock on the load balancer table to check the status of a load balancer. If the status is ACTIVE then the status of the load balancer and listener is updated and the method returns True. If the status is not ACTIVE, then nothing is done and False is returned.

Parameters:

• session – A Sql Alchemy database session.

• lb_id – ID of the Load Balancer to check and lock

• lb_prov_status – Status to set Load Balancer and Listener if check passes.

• listener_prov_status – Status to set Listeners if check passes

• listener_ids – List of IDs of listeners to check and lock (only use this when relevant to the operation)

• pool_id – ID of the Pool to check and lock (only use this when relevant to the operation)

• l7policy_id – ID of the L7Policy to check and lock (only use this when relevant to the operation)

Returns:

bool

update_pool_and_sp(session, pool_id, pool_dict)

Updates a pool and session persistence entity in the database.

Parameters:

• session – A Sql Alchemy database session.

• pool_dict – Dictionary representation of a pool

Returns:

octavia.common.data_models.Pool

class SNIRepository

Bases: BaseRepository

model_class

alias of SNI

update(session, listener_id=None, tls_container_id=None, **model_kwargs)

Updates an SNI entity in the database.

class SessionPersistenceRepository

Bases: BaseRepository

exists(session, pool_id)

Checks if session persistence exists on a pool.

model_class

alias of SessionPersistence

update(session, pool_id, **model_kwargs)

Updates a session persistence entity in the database by pool_id.

class VRRPGroupRepository

Bases: BaseRepository

model_class

alias of VRRPGroup

update(session, load_balancer_id, **model_kwargs)

Updates a VRRPGroup entry for by load_balancer_id.

class VipRepository

Bases: BaseRepository

model_class

alias of Vip

update(session, load_balancer_id, **model_kwargs)

Updates a vip entity in the database by load_balancer_id.

Module contents