Cluster API

The Cluster Class

The cluster high-level interface is available through the cluster member of a Connection object. The cluster member will only be added if the service is detected.

class openstack.cluster.v1._proxy.Proxy(session)

get_build_info()

Get build info for service engine and API

Returns:A dictionary containing the API and engine revision string.

profile_types(**query)

Get a generator of profile types.

Returns:A generator of objects that are of type ProfileType

get_profile_type(profile_type)

Get the details about a profile_type.

Parameters:name – The name of the profile_type to retrieve or an object of ProfileType. Returns:A ProfileType object. Raises:ResourceNotFound when no profile_type matching the name could be found.

policy_types(**query)

Get a generator of policy types.

Returns:A generator of objects that are of type PolicyType

get_policy_type(policy_type)

Get the details about a policy_type.

Parameters:policy_type – The name of a poicy_type or an object of PolicyType. Returns:A PolicyType object. Raises:ResourceNotFound when no policy_type matching the name could be found.

create_profile(**attrs)

Create a new profile from attributes.

Parameters:attrs (dict) – Keyword arguments that will be used to create a Profile, it is comprised of the properties on the Profile class. Returns:The results of profile creation. Return type:Profile.

delete_profile(profile, ignore_missing=True)

Delete a profile.

Parameters:

• profile – The value can be either the name or ID of a profile or a Profile instance.
• ignore_missing (bool) – When set to False, an exception ResourceNotFound will be raised when the profile could not be found. When set to True, no exception will be raised when attempting to delete a non-existent profile.

Returns:

None

find_profile(name_or_id, ignore_missing=True)

Find a single profile.

Parameters:

• name_or_id (str) – The name or ID of a profile.
• ignore_missing (bool) – When set to False ResourceNotFound will be raised when the resource does not exist. When set to True, None will be returned when attempting to find a nonexistent resource.

Returns:

One Profile object or None

get_profile(profile)

Get a single profile.

Parameters:profile – The value can be the name or ID of a profile or a Profile instance. Returns:One Profile Raises:ResourceNotFound when no profile matching the criteria could be found.

profiles(**query)

Retrieve a generator of profiles.

Parameters:**query (kwargs) –

Optional query parameters to be sent to restrict the profiles to be returned. Available parameters include:

• name: The name of a profile.
• type: The type name of a profile.

• metadata: A list of key-value pairs that are associated with a

  profile.

• sort: A list of sorting keys separated by commas. Each sorting

  key can optionally be attached with a sorting direction modifier which can be asc or desc.

• limit: Requests a specified size of returned items from the

  query. Returns a number of items up to the specified limit value.

• marker: Specifies the ID of the last-seen item. Use the limit

  parameter to make an initial limited request and use the ID of the last-seen item from the response as the marker parameter value in a subsequent limited request.

• global_project: A boolean value indicating whether profiles

  from all projects will be returned.

Returns:A generator of profile instances.

update_profile(profile, **attrs)

Update a profile.

Parameters:

• profile – Either the name or the ID of the profile, or an instance of Profile.
• attrs – The attributes to update on the profile represented by the value parameter.

Returns:

The updated profile.

Return type:

Profile

create_cluster(**attrs)

Create a new cluster from attributes.

Parameters:attrs (dict) – Keyword arguments that will be used to create a Cluster, it is comprised of the properties on the Cluster class. Returns:The results of cluster creation. Return type:Cluster.

delete_cluster(cluster, ignore_missing=True)

Delete a cluster.

Parameters:

• cluster – The value can be either the name or ID of a cluster or a Cluster instance.
• ignore_missing (bool) – When set to False, an exception ResourceNotFound will be raised when the cluster could not be found. When set to True, no exception will be raised when attempting to delete a non-existent cluster.

Returns:

The instance of the Cluster which was deleted.

Return type:

Cluster.

find_cluster(name_or_id, ignore_missing=True)

Find a single cluster.

Parameters:

• name_or_id (str) – The name or ID of a cluster.
• ignore_missing (bool) – When set to False ResourceNotFound will be raised when the resource does not exist. When set to True, None will be returned when attempting to find a nonexistent resource.

Returns:

One Cluster object or None

get_cluster(cluster)

Get a single cluster.

Parameters:cluster – The value can be the name or ID of a cluster or a Cluster instance. Returns:One Cluster Raises:ResourceNotFound when no cluster matching the criteria could be found.

clusters(**query)

Retrieve a generator of clusters.

Parameters:**query (kwargs) –

Optional query parameters to be sent to restrict the clusters to be returned. Available parameters include:

• name: The name of a cluster.
• status: The current status of a cluster.

• sort: A list of sorting keys separated by commas. Each sorting

  key can optionally be attached with a sorting direction modifier which can be asc or desc.

• limit: Requests a specified size of returned items from the

  query. Returns a number of items up to the specified limit value.

• marker: Specifies the ID of the last-seen item. Use the limit

  parameter to make an initial limited request and use the ID of the last-seen item from the response as the marker parameter value in a subsequent limited request.

• global_project: A boolean value indicating whether clusters

  from all projects will be returned.

Returns:A generator of cluster instances.

update_cluster(cluster, **attrs)

Update a cluster.

Parameters:

• cluster – Either the name or the ID of the cluster, or an instance of Cluster.
• attrs – The attributes to update on the cluster represented by the cluster parameter.

Returns:

The updated cluster.

Return type:

Cluster

cluster_add_nodes(cluster, nodes)

Add nodes to a cluster.

Parameters:

• cluster – Either the name or the ID of the cluster, or an instance of Cluster.
• nodes – List of nodes to be added to the cluster.

Returns:

A dict containing the action initiated by this operation.

cluster_del_nodes(cluster, nodes)

Remove nodes from a cluster.

Parameters:

• cluster – Either the name or the ID of the cluster, or an instance of Cluster.
• nodes – List of nodes to be removed from the cluster.

Returns:

A dict containing the action initiated by this operation.

cluster_scale_out(cluster, count=None)

Inflate the size of a cluster.

Parameters:

• cluster – Either the name or the ID of the cluster, or an instance of Cluster.
• count – Optional parameter specifying the number of nodes to be added.

Returns:

A dict containing the action initiated by this operation.

cluster_scale_in(cluster, count=None)

Shrink the size of a cluster.

Parameters:

• cluster – Either the name or the ID of the cluster, or an instance of Cluster.
• count – Optional parameter specifying the number of nodes to be removed.

Returns:

A dict containing the action initiated by this operation.

cluster_resize(cluster, **params)

Resize of cluster.

Parameters:

• cluster – Either the name or the ID of the cluster, or an instance of Cluster.
• **params (dict) – A dictionary providing the parameters for the resize action.

Returns:

A dict containing the action initiated by this operation.

cluster_attach_policy(cluster, policy, **params)

Attach a policy to a cluster.

Parameters:

• cluster – Either the name or the ID of the cluster, or an instance of Cluster.
• policy – Either the name or the ID of a policy.
• **params (dict) – A dictionary containing the properties for the policy to be attached.

Returns:

A dict containing the action initiated by this operation.

cluster_detach_policy(cluster, policy)

Attach a policy to a cluster.

Parameters:

• cluster – Either the name or the ID of the cluster, or an instance of Cluster.
• policy – Either the name or the ID of a policy.

Returns:

A dict containing the action initiated by this operation.

cluster_update_policy(cluster, policy, **params)

Change properties of a policy which is bound to the cluster.

Parameters:

• cluster – Either the name or the ID of the cluster, or an instance of Cluster.
• policy – Either the name or the ID of a policy.
• **params (dict) – A dictionary containing the new properties for the policy.

Returns:

A dict containing the action initiated by this operation.

check_cluster(cluster, **params)

check a cluster.

Parameters:

• cluster – The value can be either the ID of a cluster or a Cluster instance.
• **params (dict) – A dictionary providing the parameters for the check action.

Returns:

A dictionary containing the action ID.

recover_cluster(cluster, **params)

recover a node.

Parameters:

• cluster – The value can be either the ID of a cluster or a Cluster instance.
• **params (dict) – A dictionary providing the parameters for the check action.

Returns:

A dictionary containing the action ID.

create_node(**attrs)

Create a new node from attributes.

Parameters:attrs (dict) – Keyword arguments that will be used to create a Node, it is comprised of the properties on the Node class. Returns:The results of node creation. Return type:Node.

delete_node(node, ignore_missing=True)

Delete a node.

Parameters:

• node – The value can be either the name or ID of a node or a Node instance.
• ignore_missing (bool) – When set to False, an exception ResourceNotFound will be raised when the node could not be found. When set to True, no exception will be raised when attempting to delete a non-existent node.

Returns:

The instance of the Node which was deleted.

Return type:

Node.

check_node(node, **params)

check a node.

Parameters:node – The value can be either the ID of a node or a Node instance. Returns:A dictionary containing the action ID.

recover_node(node, **params)

recover a node.

Parameters:node – The value can be either the ID of a node or a Node instance. Returns:A dictionary containing the action ID.

find_node(name_or_id, ignore_missing=True)

Find a single node.

Parameters:name_or_id (str) – The name or ID of a node. Returns:One Node object or None.

get_node(node, args=None)

Get a single node.

Parameters:

• node – The value can be the name or ID of a node or a Node instance.
• args – An optional argument that will be translated into query strings when retrieving the node.

Returns:

One Node

Raises:

ResourceNotFound when no node matching the name or ID could be found.

nodes(**query)

Retrieve a generator of nodes.

Parameters:**query (kwargs) –

Optional query parameters to be sent to restrict the nodes to be returned. Available parameters include:

• cluster_id: A string including the name or ID of a cluster to

  which the resulted node(s) is a member.

• name: The name of a node.
• status: The current status of a node.

• sort: A list of sorting keys separated by commas. Each sorting

  key can optionally be attached with a sorting direction modifier which can be asc or desc.

• limit: Requests at most the specified number of items be

  returned from the query.

• marker: Specifies the ID of the last-seen node. Use the limit

  parameter to make an initial limited request and use the ID of the last-seen node from the response as the marker parameter value in a subsequent limited request.

• global_project: A boolean value indicating whether nodes

  from all projects will be returned.

Returns:A generator of node instances.

update_node(node, **attrs)

Update a node.

Parameters:

• node – Either the name or the ID of the node, or an instance of Node.
• attrs – The attributes to update on the node represented by the node parameter.

Returns:

The updated node.

Return type:

Node

create_policy(**attrs)

Create a new policy from attributes.

Parameters:attrs (dict) – Keyword arguments that will be used to create a Policy, it is comprised of the properties on the Policy class. Returns:The results of policy creation. Return type:Policy.

delete_policy(policy, ignore_missing=True)

Delete a policy.

Parameters:

• policy – The value can be either the name or ID of a policy or a Policy instance.
• ignore_missing (bool) – When set to False, an exception ResourceNotFound will be raised when the policy could not be found. When set to True, no exception will be raised when attempting to delete a non-existent policy.

Returns:

None

find_policy(name_or_id, ignore_missing=True)

Find a single policy.

Parameters:

• name_or_id (str) – The name or ID of a policy.
• ignore_missing (bool) – When set to False ResourceNotFound will be raised when the specified policy does not exist. When set to True, None will be returned when attempting to find a nonexistent policy.

Returns:

A policy object or None.

Return type:

Policy

get_policy(policy)

Get a single policy.

Parameters:policy – The value can be the name or ID of a policy or a Policy instance. Returns:A policy object. Return type:Policy Raises:ResourceNotFound when no policy matching the criteria could be found.

policies(**query)

Retrieve a generator of policies.

Parameters:**query (kwargs) –

Optional query parameters to be sent to restrict the policies to be returned. Available parameters include:

• name: The name of a policy.
• type: The type name of a policy.

• sort: A list of sorting keys separated by commas. Each sorting

  key can optionally be attached with a sorting direction modifier which can be asc or desc.

• limit: Requests a specified size of returned items from the

  query. Returns a number of items up to the specified limit value.

• marker: Specifies the ID of the last-seen item. Use the limit

  parameter to make an initial limited request and use the ID of the last-seen item from the response as the marker parameter value in a subsequent limited request.

• global_project: A boolean value indicating whether policies from

  all projects will be returned.

Returns:A generator of policy instances.

update_policy(policy, **attrs)

Update a policy.

Parameters:

• policy – Either the name or the ID of a policy, or an instance of Policy.
• attrs – The attributes to update on the policy represented by the value parameter.

Returns:

The updated policy.

Return type:

Policy

cluster_policies(cluster, **query)

Retrieve a generator of cluster-policy bindings.

Parameters:

• cluster – The value can be the name or ID of a cluster or a Cluster instance.
• **query (kwargs) –

  Optional query parameters to be sent to restrict the policies to be returned. Available parameters include:

  • enabled: A boolean value indicating whether the policy is

    enabled on the cluster.

Returns:

A generator of cluster-policy binding instances.

get_cluster_policy(cluster_policy, cluster)

Get a cluster-policy binding.

Parameters:

• cluster_policy – The value can be the name or ID of a policy or a Policy instance.
• cluster – The value can be the name or ID of a cluster or a Cluster instance.

Returns:

a cluster-policy binding object.

Return type:

CLusterPolicy

Raises:

ResourceNotFound when no cluster-policy binding matching the criteria could be found.

create_receiver(**attrs)

Create a new receiver from attributes.

Parameters:attrs (dict) – Keyword arguments that will be used to create a Receiver, it is comprised of the properties on the Receiver class. Returns:The results of receiver creation. Return type:Receiver.

delete_receiver(receiver, ignore_missing=True)

Delete a receiver.

Parameters:

• receiver – The value can be either the name or ID of a receiver or a Receiver instance.
• ignore_missing (bool) – When set to False, an exception ResourceNotFound will be raised when the receiver could not be found. When set to True, no exception will be raised when attempting to delete a non-existent receiver.

Returns:

None

find_receiver(name_or_id, ignore_missing=True)

Find a single receiver.

Parameters:

• name_or_id (str) – The name or ID of a receiver.
• ignore_missing (bool) – When set to False ResourceNotFound will be raised when the specified receiver does not exist. When set to True, None will be returned when attempting to find a nonexistent receiver.

Returns:

A receiver object or None.

Return type:

Receiver

get_receiver(receiver)

Get a single receiver.

Parameters:receiver – The value can be the name or ID of a receiver or a Receiver instance. Returns:A receiver object. Return type:Receiver Raises:ResourceNotFound when no receiver matching the criteria could be found.

receivers(**query)

Retrieve a generator of receivers.

Parameters:**query (kwargs) –

Optional query parameters for restricting the receivers to be returned. Available parameters include:

• name: The name of a receiver object.
• type: The type of receiver objects.
• cluster_id: The ID of the associated cluster.
• action: The name of the associated action.

• sort: A list of sorting keys separated by commas. Each sorting

  key can optionally be attached with a sorting direction modifier which can be asc or desc.

• global_project: A boolean value indicating whether receivers
• from all projects will be returned.

Returns:A generator of receiver instances.

get_action(action)

Get a single action.

Parameters:action – The value can be the name or ID of an action or a Action instance. Returns:an action object. Return type:Action Raises:ResourceNotFound when no action matching the criteria could be found.

actions(**query)

Retrieve a generator of actions.

Parameters:**query (kwargs) –

Optional query parameters to be sent to restrict the actions to be returned. Available parameters include:

• name: name of action for query.

• target: ID of the target object for which the actions should be

  returned.

• action: built-in action types for query.

• sort: A list of sorting keys separated by commas. Each sorting

  key can optionally be attached with a sorting direction modifier which can be asc or desc.

• limit: Requests a specified size of returned items from the

  query. Returns a number of items up to the specified limit value.

• marker: Specifies the ID of the last-seen item. Use the limit

  parameter to make an initial limited request and use the ID of the last-seen item from the response as the marker parameter value in a subsequent limited request.

Returns:A generator of action instances.

get_event(event)

Get a single event.

Parameters:event – The value can be the name or ID of an event or a Event instance. Returns:an event object. Return type:Event Raises:ResourceNotFound when no event matching the criteria could be found.

events(**query)

Retrieve a generator of events.

Parameters:**query (kwargs) –

Optional query parameters to be sent to restrict the events to be returned. Available parameters include:

• obj_name: name string of the object associated with an event.

• obj_type: type string of the object related to an event. The

  value can be cluster, node, policy etc.

• obj_id: ID of the object associated with an event.
• cluster_id: ID of the cluster associated with the event, if any.
• action: name of the action associated with an event.

• sort: A list of sorting keys separated by commas. Each sorting

  key can optionally be attached with a sorting direction modifier which can be asc or desc.

• limit: Requests a specified size of returned items from the

  query. Returns a number of items up to the specified limit value.

• marker: Specifies the ID of the last-seen item. Use the limit

  parameter to make an initial limited request and use the ID of the last-seen item from the response as the marker parameter value in a subsequent limited request.

• global_project: A boolean specifying whether events from all

  projects should be returned. This option is subject to access control checking.

Returns:A generator of event instances.