octavia.amphorae.drivers package

Subpackages

• octavia.amphorae.drivers.haproxy package
  • Submodules
  • octavia.amphorae.drivers.haproxy.data_models module
  • octavia.amphorae.drivers.haproxy.exceptions module
  • octavia.amphorae.drivers.haproxy.rest_api_driver module
  • Module contents
• octavia.amphorae.drivers.health package
  • Submodules
  • octavia.amphorae.drivers.health.heartbeat_udp module
  • Module contents
• octavia.amphorae.drivers.keepalived package
  • Subpackages
    • octavia.amphorae.drivers.keepalived.jinja package
      • Submodules
      • octavia.amphorae.drivers.keepalived.jinja.jinja_cfg module
      • Module contents
  • Submodules
  • octavia.amphorae.drivers.keepalived.vrrp_rest_driver module
  • Module contents
• octavia.amphorae.drivers.noop_driver package
  • Submodules
  • octavia.amphorae.drivers.noop_driver.driver module
  • Module contents

Submodules

octavia.amphorae.drivers.driver_base module

class AmphoraLoadBalancerDriver

Bases: object

abstract delete(listener)

Delete the listener on the vip.

Parameters

listener (octavia.db.models.Listener) – listener object, need to use its protocol_port property

Returns

return a value list (listener, vip, status flag–delete)

At this moment, we just build the basic structure for testing, will add more function along with the development.

abstract finalize_amphora(amphora)

Finalize the amphora before any listeners are configured.

Parameters

amphora (octavia.db.models.Amphora) – amphora object, need to use its id property

Returns

None

At this moment, we just build the basic structure for testing, will add more function along with the development. This is a hook for drivers who need to do additional work before an amphora becomes ready to accept listeners. Please keep in mind that amphora might be kept in an offline pool after this call.

abstract get_diagnostics(amphora)

Return ceilometer ready diagnostic data.

Parameters

amphora (octavia.db.models.Amphora) – amphora object, need to use its id property

Returns

return a value list (amphora.id, status flag–‘ge t_diagnostics’)

At this moment, we just build the basic structure for testing, will add more function along with the development, eventually, we want it run some expensive self tests to determine if the amphora and the lbs are healthy the idea is that those tests are triggered more infrequent than the health gathering.

abstract get_info(amphora, raise_retry_exception=False)

Returns information about the amphora.

Parameters

• amphora (octavia.db.models.Amphora) – amphora object, need to use its id property

• raise_retry_exception – Flag if outside task should be retried

Returns

return a value list (amphora.id, status flag–‘info’)

At this moment, we just build the basic structure for testing, will add more function along with the development, eventually, we want it to return information as: {“Rest Interface”: “1.0”, “Amphorae”: “1.0”, “packages”:{“ha proxy”:”1.5”}} some information might come from querying the amphora

abstract get_interface_from_ip(amphora, ip_address, timeout_dict=None)

Get the interface name from an IP address.

Parameters

• amphora (octavia.db.models.Amphora) – The amphora to query.

• ip_address (string) – The IP address to lookup. (IPv4 or IPv6)

• timeout_dict (dict) – Dictionary of timeout values for calls to the amphora. May contain: req_conn_timeout, req_read_timeout, conn_max_retries, conn_retry_interval

post_network_plug(amphora, port, amphora_network_config)

Called after amphora added to network

Parameters

• amphora (octavia.db.models.Amphora) – amphora object, needs id and network ip(s)

• port (octavia.network.data_models.Port) – contains information of the plugged port

• amphora_network_config (octavia.network.data_models. AmphoraNetworkConfig) – A data model containing information about the subnets and ports that an amphorae owns.

This method is optional to implement. After adding an amphora to a network, there may be steps necessary on the amphora to allow it to access said network. Ex: creating an interface on an amphora for a neutron network to utilize.

post_vip_plug(amphora, load_balancer, amphorae_network_config, vrrp_port=None, vip_subnet=None, additional_vip_data=None)

Called after network driver has allocated and plugged the VIP

Parameters

• amphora (octavia.db.models.Amphora) –

• load_balancer (octavia.common.data_models.LoadBalancer) – A load balancer that just had its vip allocated and plugged in the network driver.

• amphorae_network_config (octavia.network.data_models. AmphoraNetworkConfig) – A data model containing information about the subnets and ports that an amphorae owns.

• vrrp_port (octavia.network.data_models.Port) – VRRP port associated with the load balancer

• vip_subnet (octavia.network.data_models.Subnet) – VIP subnet associated with the load balancer

Returns

None

This is to do any additional work needed on the amphorae to plug the vip, such as bring up interfaces.

abstract reload(loadbalancer, amphora, timeout_dict=None)

Reload the listeners on the amphora.

Parameters

• loadbalancer (octavia.db.models.LoadBalancer) – loadbalancer object to reload listeners

• amphora (octavia.db.models.Amphora) – Amphora to start. If None, reload on all amphora

• timeout_dict (dict) – Dictionary of timeout values for calls to the amphora. May contain: req_conn_timeout, req_read_timeout, conn_max_retries, conn_retry_interval

Returns

return a value list (listener, vip, status flag–enable)

At this moment, we just build the basic structure for testing, will add more function along with the development.

abstract start(loadbalancer, amphora, timeout_dict=None)

Start the listeners on the amphora.

Parameters

• loadbalancer (octavia.db.models.LoadBalancer) – loadbalancer object to start listeners

• amphora (octavia.db.models.Amphora) – Amphora to start. If None, start on all amphora

• timeout_dict (dict) – Dictionary of timeout values for calls to the amphora. May contain: req_conn_timeout, req_read_timeout, conn_max_retries, conn_retry_interval

Returns

return a value list (listener, vip, status flag–enable)

At this moment, we just build the basic structure for testing, will add more function along with the development.

abstract update(loadbalancer)

Update the amphora with a new configuration.

Parameters

loadbalancer (octavia.db.models.LoadBalancer) – loadbalancer object, need to use its vip.ip_address property

Returns

None

At this moment, we just build the basic structure for testing, will add more function along with the development.

update_amphora_agent_config(amphora, agent_config)

Upload and update the amphora agent configuration.

Parameters

• amphora (octavia.db.models.Amphora) – amphora object, needs id and network ip(s)

• agent_config (string) – The new amphora agent configuration file.

abstract update_amphora_listeners(loadbalancer, amphora, timeout_dict)

Update the amphora with a new configuration.

Parameters

• loadbalancer (list(octavia.db.models.Listener)) – List of listeners to update.

• amphora (octavia.db.models.Amphora) – The index of the specific amphora to update

• timeout_dict (dict) – Dictionary of timeout values for calls to the amphora. May contain: req_conn_timeout, req_read_timeout, conn_max_retries, conn_retry_interval

Returns

None

Builds a new configuration, pushes it to the amphora, and reloads the listener on one amphora.

upload_cert_amp(amphora, pem_file)

Upload cert info to the amphora.

Parameters

• amphora (octavia.db.models.Amphora) – amphora object, needs id and network ip(s)

• pem_file (file object) – a certificate file

Upload cert file to amphora for Controller Communication.

class VRRPDriverMixin

Bases: object

Abstract mixin class for VRRP support in loadbalancer amphorae

Usage: To plug VRRP support in another service driver XYZ, use: @plug_mixin(XYZ) class XYZ: …

abstract reload_vrrp_service(loadbalancer)

Reload the VRRP services of all amphorae of the loadbalancer

Parameters

loadbalancer – loadbalancer object

abstract start_vrrp_service(amphora, timeout_dict=None)

Start the VRRP services on the amphora

Parameters

• amphora – The amphora object to start the service on.

• timeout_dict – Dictionary of timeout values for calls to the amphora. May contain: req_conn_timeout, req_read_timeout, conn_max_retries, conn_retry_interval

abstract stop_vrrp_service(loadbalancer)

Stop the vrrp services running on the loadbalancer’s amphorae

Parameters

loadbalancer – loadbalancer object

abstract update_vrrp_conf(loadbalancer, amphorae_network_config, amphora, timeout_dict=None)

Update amphorae of the loadbalancer with a new VRRP configuration

Parameters

• loadbalancer – loadbalancer object

• amphorae_network_config – amphorae network configurations

• amphora – The amphora object to update.

• timeout_dict – Dictionary of timeout values for calls to the amphora. May contain: req_conn_timeout, req_read_timeout, conn_max_retries, conn_retry_interval

Module contents