Dimension Data Load Balancer Driver Documentation¶
Dimension Data are a global IT Services company and form part of the NTT Group. Dimension Data provide IT-as-a-Service to customers around the globe on their cloud platform (Compute as a Service). The CaaS service is available either on one of the public cloud instances or as a private instance on premises.
CaaS has its own non-standard API , libcloud provides a Python wrapper on top of this API with common methods with other IaaS solutions and Public cloud providers. Therefore, you can use use the Dimension Data libcloud driver to communicate with both the public and private clouds.
Instantiating a driver¶
When you instantiate a driver you need to pass the following arguments to the driver constructor:
user_id
- Your Dimension Data Cloud usernamekey
- Your Dimension Data Cloud passwordregion
- The region key, one of the possible region keys
Possible regions:
dd-na
: Dimension Data North America (USA)dd-eu
: Dimension Data Europedd-af
: Dimension Data Africadd-au
: Dimension Data Australiadd-latam
: Dimension Data Latin Americadd-ap
: Dimension Data Asia Pacificdd-canada
: Dimension Data Canada region
The base libcloud API allows you to:
create balancers, add members and destroy members
Non-standard functionality and extension methods¶
The Dimension Data driver exposes some libcloud non-standard functionalities through extension methods and arguments.
These functionalities include:
list nodes
list pools
set the network domain (zone)
For information on how to use these functionalities please see the method docstrings below. You can also use an interactive shell for exploration as shown in the examples.
API Docs¶
- class libcloud.loadbalancer.drivers.dimensiondata.DimensionDataLBDriver(key, secret=None, secure=True, host=None, port=None, api_version=None, region='dd-na', **kwargs)[source]¶
DimensionData node driver.
- Parameters:
key (
str
) – API key or username to be used (required)secret (
str
) – Secret password to be used (required)secure (
bool
) – Whether to use HTTPS or HTTP. Note: Some providers only support HTTPS, and it is on by default.host (
str
) – Override hostname used for connections.port (
int
) – Override port used for connections.api_version (
str
) – Optional API version. Only used by drivers which support multiple API versions.region (
str
) – Optional driver region. Only used by drivers which support multiple regions.
- Return type:
None
- balancer_attach_compute_node(balancer, node)¶
Attach a compute node as a member to the load balancer.
- Parameters:
balancer (
LoadBalancer
) – LoadBalancer which should be usednode (
Node
) – Node to join to the balancer
- Returns:
Member after joining the balancer.
- Return type:
Member
- balancer_attach_member(balancer, member)[source]¶
Attach a member to balancer
- Parameters:
balancer (
LoadBalancer
) – LoadBalancer which should be usedmember (
Member
) – Member to join to the balancer
- Returns:
Member after joining the balancer.
- Return type:
Member
- balancer_detach_member(balancer, member)[source]¶
Detach member from balancer
- Parameters:
balancer (
LoadBalancer
) – LoadBalancer which should be usedmember (
Member
) – Member which should be used
- Returns:
True
if member detach was successful, otherwiseFalse
.- Return type:
bool
- balancer_list_members(balancer)[source]¶
Return list of members attached to balancer.
In Dimension Data terminology these are the members of the pools within a virtual listener.
- Parameters:
balancer (
LoadBalancer
) – LoadBalancer which should be used- Return type:
list
ofMember
- connectionCls¶
alias of
DimensionDataConnection
- create_balancer(name, port=None, protocol=None, algorithm=None, members=None, ex_listener_ip_address=None)[source]¶
Create a new load balancer instance
- Parameters:
name (
str
) – Name of the new load balancer (required)port (
int
) – An integer in the range of 1-65535. If not supplied, it will be taken to mean ‘Any Port’protocol (
str
) – Loadbalancer protocol, defaults to http.members (
list
ofMember
) – list of Members to attach to balancer (optional)algorithm (
Algorithm
) – Load balancing algorithm, defaults to ROUND_ROBIN.ex_listener_ip_address (
str
) – Must be a valid IPv4 in dot-decimal notation (x.x.x.x).
- Return type:
LoadBalancer
- destroy_balancer(balancer)[source]¶
Destroy a load balancer (virtual listener)
- Parameters:
balancer (
LoadBalancer
) – LoadBalancer which should be used- Returns:
True
if the destroy was successful, otherwiseFalse
.- Return type:
bool
- ex_create_node(network_domain_id, name, ip, ex_description, connection_limit=25000, connection_rate_limit=2000)[source]¶
Create a new node
- Parameters:
network_domain_id – Network Domain ID (required)
name (
str
) – name of the node (required)ip (
str
) – IPv4 address of the node (required)ex_description (
str
) – Description of the node (required)connection_limit (
int
) – Maximum number of concurrent connections per secconnection_rate_limit (
int
) – Maximum number of concurrent sessions
- Returns:
Instance of
DimensionDataVIPNode
- Return type:
DimensionDataVIPNode
- ex_create_pool(network_domain_id, name, balancer_method, ex_description, health_monitors=None, service_down_action='NONE', slow_ramp_time=30)[source]¶
Create a new pool
- Parameters:
network_domain_id – Network Domain ID (required)
name (
str
) – name of the node (required)balancer_method (
str
) – The load balancer algorithm (required)ex_description (
str
) – Description of the node (required)health_monitors (
list
ofDimensionDataDefaultHealthMonitor
) – A list of health monitors to use for the pool.service_down_action (
str
) – What to do when node is unavailable NONE, DROP or RESELECTslow_ramp_time (
int
) – Number of seconds to stagger ramp up of nodes
- Returns:
Instance of
DimensionDataPool
- Return type:
DimensionDataPool
- ex_create_pool_member(pool, node, port=None)[source]¶
Create a new member in an existing pool from an existing node
- Parameters:
pool (
DimensionDataPool
) – Instance ofDimensionDataPool
(required)node (
DimensionDataVIPNode
) – Instance ofDimensionDataVIPNode
(required)port (
str
) – Port the the service will listen on
- Returns:
The node member, instance of
DimensionDataPoolMember
- Return type:
DimensionDataPoolMember
- ex_create_virtual_listener(network_domain_id, name, ex_description, port=None, pool=None, listener_ip_address=None, persistence_profile=None, fallback_persistence_profile=None, irule=None, protocol='TCP', connection_limit=25000, connection_rate_limit=2000, source_port_preservation='PRESERVE')[source]¶
Create a new virtual listener (load balancer)
- Parameters:
network_domain_id – Network Domain ID (required)
name (
str
) – name of the listener (required)ex_description (
str
) – Description of the node (required)port (
int
) – An integer in the range of 1-65535. If not supplied, it will be taken to mean ‘Any Port’pool (
DimensionDataPool
) – The pool to use for the listenerlistener_ip_address (
str
) – The IPv4 Address of the virtual listenerpersistence_profile (
DimensionDataPersistenceProfile
) – Persistence profilefallback_persistence_profile (
DimensionDataPersistenceProfile
) – Fallback persistence profileirule (
DimensionDataDefaultiRule
) – The iRule to applyprotocol (
str
) – For STANDARD type, ANY, TCP or UDP for PERFORMANCE_LAYER_4 choice of ANY, TCP, UDP, HTTPconnection_limit (
int
) – Maximum number of concurrent connections per secconnection_rate_limit (
int
) – Maximum number of concurrent sessionssource_port_preservation (
str
) – Choice of PRESERVE, PRESERVE_STRICT or CHANGE
- Returns:
Instance of the listener
- Return type:
DimensionDataVirtualListener
- ex_destroy_node(node_id)[source]¶
Destroy a specific node
- Parameters:
node_id (
str
) – The ID of of aDimensionDataVIPNode
- Returns:
True
for success,False
for failure- Return type:
bool
- ex_destroy_pool(pool)[source]¶
Destroy an existing pool
- Parameters:
pool (
DimensionDataPool
) – The instance ofDimensionDataPool
to destroy- Returns:
True
for success,False
for failure- Return type:
bool
- ex_destroy_pool_member(member, destroy_node=False)[source]¶
Destroy a specific member of a pool
- Parameters:
pool (
DimensionDataPoolMember
) – The instance of a pool memberdestroy_node (
bool
) – Also destroy the associated node
- Returns:
True
for success,False
for failure- Return type:
bool
- ex_get_current_network_domain()[source]¶
Get the current network domain ID of the driver.
- Returns:
ID of the network domain
- Return type:
str
- ex_get_default_health_monitors(network_domain_id)[source]¶
Get the default health monitors available for a network domain
- Parameters:
network_domain_id (
str
) – The ID of of aDimensionDataNetworkDomain
- Return type:
list of
DimensionDataDefaultHealthMonitor
- ex_get_default_irules(network_domain_id)[source]¶
Get the default iRules available for a network domain
- Parameters:
network_domain_id (
str
) – The ID of of aDimensionDataNetworkDomain
- Return type:
list of
DimensionDataDefaultiRule
- ex_get_default_persistence_profiles(network_domain_id)[source]¶
Get the default persistence profiles available for a network domain
- Parameters:
network_domain_id (
str
) – The ID of of aDimensionDataNetworkDomain
- Return type:
list of
DimensionDataPersistenceProfile
- ex_get_node(node_id)[source]¶
Get the node specified by node_id
- Returns:
Returns an instance of
DimensionDataVIPNode
- Return type:
Instance of
DimensionDataVIPNode
- ex_get_nodes(ex_network_domain_id=None)[source]¶
Get the nodes within this geography or in given network.
- Parameters:
ex_network_domain_id (
str
) – UUID of Network Domain if not None returns only balancers in the given network if None then returns all pools for the organization- Returns:
Returns an
list
ofDimensionDataVIPNode
- Return type:
list
ofDimensionDataVIPNode
- ex_get_pool(pool_id)[source]¶
Get a specific pool inside the current geography
- Parameters:
pool_id (
str
) – The identifier of the pool- Returns:
Returns an instance of
DimensionDataPool
- Return type:
DimensionDataPool
- ex_get_pool_member(pool_member_id)[source]¶
Get a specific member of a pool
- Parameters:
pool (
str
) – The id of a pool member- Returns:
Returns an instance of
DimensionDataPoolMember
- Return type:
DimensionDataPoolMember
- ex_get_pool_members(pool_id)[source]¶
Get the members of a pool
- Parameters:
pool (
DimensionDataPool
) – The instance of a pool- Returns:
Returns an
list
ofDimensionDataPoolMember
- Return type:
list
ofDimensionDataPoolMember
- ex_get_pools(ex_network_domain_id=None)[source]¶
Get all of the pools inside the current geography or in given network.
- Parameters:
ex_network_domain_id (
str
) – UUID of Network Domain if not None returns only balancers in the given network if None then returns all pools for the organization- Returns:
Returns a
list
of typeDimensionDataPool
- Return type:
list
ofDimensionDataPool
- ex_set_current_network_domain(network_domain_id)[source]¶
Set the network domain (part of the network) of the driver
- Parameters:
network_domain_id (
str
) – ID of the pool (required)
- ex_set_node_state(node, enabled)[source]¶
Change the state of a node (enable/disable)
- Parameters:
pool (
DimensionDataNode
) – The instance ofDimensionDataNode
to updateenabled (
bool
) – The target state of the node
- Returns:
The instance of
DimensionDataNode
- Return type:
DimensionDataNode
- ex_update_node(node)[source]¶
Update the properties of a node
- Parameters:
pool (
DimensionDataNode
) – The instance ofDimensionDataNode
to update- Returns:
The instance of
DimensionDataNode
- Return type:
DimensionDataNode
- ex_update_pool(pool)[source]¶
Update the properties of an existing pool only method, serviceDownAction and slowRampTime are updated
- Parameters:
pool (
DimensionDataPool
) – The instance ofDimensionDataPool
to update- Returns:
True
for success,False
for failure- Return type:
bool
- ex_wait_for_state(state, func, poll_interval=2, timeout=60, *args, **kwargs)[source]¶
Wait for the function which returns a instance with field status to match
Keep polling func until one of the desired states is matched
- Parameters:
state (
str
orlist
) – Either the desired state (str) or a list of statesfunc (
function
) – The function to call, e.g. ex_get_vlanpoll_interval (int) – The number of seconds to wait between checks
timeout (int) – The total number of seconds to wait to reach a state
args (Positional arguments) – The arguments for func
kwargs (Keyword arguments) – The arguments for func
- get_balancer(balancer_id)[source]¶
Return a
LoadBalancer
object.- Parameters:
balancer_id (
str
) – id of a load balancer you want to fetch- Return type:
LoadBalancer
- list_balancers(ex_network_domain_id=None)[source]¶
List all loadbalancers inside a geography or in given network.
In Dimension Data terminology these are known as virtual listeners
- Parameters:
ex_network_domain_id (
str
) – UUID of Network Domain if not None returns only balancers in the given network if None then returns all pools for the organization- Return type:
list
ofLoadBalancer
- list_protocols()[source]¶
Return a list of supported protocols.
Since all protocols are support by Dimension Data, this is a list of common protocols.
- Return type:
list
ofstr
- list_supported_algorithms()¶
Return algorithms supported by this driver.
- Return type:
list
ofstr
- update_balancer(balancer, **kwargs)¶
Sets the name, algorithm, protocol, or port on a load balancer.
- Parameters:
balancer (
LoadBalancer
) – LoadBalancer which should be usedname (
str
) – New load balancer namealgorithm (
Algorithm
) – New load balancer algorithmprotocol (
str
) – New load balancer protocolport (
int
) – New load balancer port
- Return type:
LoadBalancer