Workflow API

updated: 2018-03-22 13:22

Workflow API

The Workflow Class

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

Workflow Operations

class openstack.workflow.v2._proxy.Proxy(session=None, task_manager=None, *args, **kwargs)
create_workflow(**attrs)

Create a new workflow from attributes

Parameters:attrs (dict) – Keyword arguments which will be used to create a Workflow, comprised of the properties on the Workflow class.
Returns:The results of workflow creation
Return type:Workflow
delete_workflow(value, ignore_missing=True)

Delete a workflow

Parameters:
  • value – The value can be either the name of a workflow or a Workflow instance.
  • ignore_missing (bool) – When set to False ResourceNotFound will be raised when the workflow does not exist. When set to True, no exception will be set when attempting to delete a nonexistent workflow.
Returns:

None
get_workflow(*attrs)

Get a workflow

Parameters:workflow – The value can be the name of a workflow or Workflow instance.
Returns:One Workflow
Raises:ResourceNotFound when no workflow matching the name could be found.
find_workflow(name_or_id, ignore_missing=True)

Find a single workflow

Parameters:
  • name_or_id – The name or ID of an workflow.
  • 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 Extension or None
workflows(**query)

Retrieve a generator of workflows

Parameters:**query (kwargs) –

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

  • limit: Requests at most the specified number of items be
    returned from the query.
  • marker: Specifies the ID of the last-seen workflow. Use the
    limit parameter to make an initial limited request and use the ID of the last-seen workflow from the response as the marker parameter value in a subsequent limited request.
Returns:A generator of workflow instances.

Execution Operations

class openstack.workflow.v2._proxy.Proxy(session=None, task_manager=None, *args, **kwargs)
create_execution(**attrs)

Create a new execution from attributes

Parameters:
  • workflow_name – The name of target workflow to execute.
  • attrs (dict) – Keyword arguments which will be used to create a Execution, comprised of the properties on the Execution class.
Returns:

The results of execution creation
Return type:

Execution
delete_execution(value, ignore_missing=True)

Delete an execution

Parameters:
  • value – The value can be either the name of a execution or a Execution instance.
  • ignore_missing (bool) – When set to False ResourceNotFound will be raised when the execution does not exist. When set to True, no exception will be set when attempting to delete a nonexistent execution.
Returns:

None
get_execution(*attrs)

Get a execution

Parameters:
  • workflow_name – The name of target workflow to execute.
  • execution – The value can be either the ID of a execution or a Execution instance.
Returns:

One Execution
Raises:

ResourceNotFound when no execution matching the criteria could be found.
find_execution(name_or_id, ignore_missing=True)

Find a single execution

Parameters:
  • name_or_id – The name or ID of an execution.
  • 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 Execution or None
executions(**query)

Retrieve a generator of executions

Parameters:**query (kwargs) –

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

  • limit: Requests at most the specified number of items be
    returned from the query.
  • marker: Specifies the ID of the last-seen execution. Use the
    limit parameter to make an initial limited request and use the ID of the last-seen execution from the response as the marker parameter value in a subsequent limited request.
Returns:A generator of execution instances.
updated: 2018-03-22 13:22
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