The freezer_dr.common.osclient Module

OpenStack client class.

class freezer_dr.common.osclient.OSClient(authurl, authmethod='password', **kwargs)

Provide OpenStack credentials to initalize the connection.

auth()

Create a session.

disable_node(node)

Disable nova on the failing node.

evacuate(nodes, shared_storage=False)

Will get the hypervisors and list all running VMs on it and then start Evacuating one by one ... :param nodes: List of nodes to be evacuated ! :param shared_storage: Boolean, True if your compute nodes are running under shared storage and False otherwise :return: List of nodes with VMs that were running on that node

get_affected_tenants(node)

get_hypervisor(node)

Get an instance of the hypervisor.

Parameters:node – dict contains host index Returns:Hypervisor

get_hypervisor_details(node)

Get details about hypervisor running on the provided node.

get_hypervisor_instances(node)

Get instances from an hypervisor.

get_hypervisors_stats()

Get stats for all hypervisors.

get_instances_list(node)

Get instances running on a node for all tenants.

get_neutronclient()

get_node_status(node)

Check the node nova-service status and if it’s disabled or not. :param node: dict contains node info :return: True or False. True => node disabled, False => node is enabled or unknow status !

get_novaclient()

get_session()

Get the authentication section.

list_tenants()

List tenants.

neutronagents(hosts=[])

novacomputes()

novahypervisors()

set_in_maintenance(nodes)

Set compute nodes in maintenance mode.

users_on_tenant(tenant)

List user per project.