ironic.conductor.deployments module

Functionality related to deploying and undeploying.

ironic.conductor.deployments.continue_node_deploy(task)

Continue deployment after finishing an async deploy step.

This function calculates which step has to run next and passes control into do_next_deploy_step. On the first run, deploy steps and templates are also validated.

Parameters:

task – a TaskManager instance with an exclusive lock

ironic.conductor.deployments.do_next_deploy_step(task, step_index)

Do deployment, starting from the specified deploy step.

Parameters:

• task – a TaskManager instance with an exclusive lock

• step_index – The first deploy step in the list to execute. This is the index (from 0) into the list of deploy steps in the node’s driver_internal_info[‘deploy_steps’]. Is None if there are no steps to execute.

ironic.conductor.deployments.do_node_deploy(task, conductor_id=None, configdrive=None, deploy_steps=None)

Prepare the environment and deploy a node.

ironic.conductor.deployments.execute_step_on_child_nodes(task, step)

Execute a requested step against a child node.

Parameters:

• task – The TaskManager object for the parent node.

• step – The requested step to be executed.

Returns:

None on Success, the resulting error message if a failure has occurred.

ironic.conductor.deployments.start_deploy(task, manager, configdrive=None, event='deploy', deploy_steps=None)

Start deployment or rebuilding on a node.

This function does not check the node suitability for deployment, it’s left up to the caller.

Parameters:

• task – a TaskManager instance.

• manager – a ConductorManager to run tasks on.

• configdrive – a configdrive, if requested.

• event – event to process: deploy or rebuild.

• deploy_steps – Optional deploy steps.

ironic.conductor.deployments.validate_deploy_steps(task)

Validate the deploy steps after the ramdisk learns about them.

ironic.conductor.deployments.validate_node(task, event='deploy')

Validate that a node is suitable for deployment/rebuilding.

Parameters:

• task – a TaskManager instance.

• event – event to process: deploy or rebuild.

Raises:

NodeInMaintenance, NodeProtected, InvalidStateRequested