The freezer_dr.common.osclient Module

OpenStack client class.

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

Bases: object

Provide OpenStack credentials to initalize the connection.

auth()[source]

Create a session.

disable_node(node)[source]

Disable nova on the failing node.

evacuate(nodes, shared_storage=False)[source]

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)[source]
get_hypervisor(node)[source]

Get an instance of the hypervisor.

Parameters

node – dict contains host index

Returns

Hypervisor

get_hypervisor_details(node)[source]

Get details about hypervisor running on the provided node.

get_hypervisor_instances(node)[source]

Get instances from an hypervisor.

get_hypervisors_stats()[source]

Get stats for all hypervisors.

get_instances_list(node)[source]

Get instances running on a node for all tenants.

get_neutronclient()[source]
get_node_status(node)[source]

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()[source]
get_session()[source]

Get the authentication section.

list_tenants()[source]

List tenants.

neutronagents(hosts=[])[source]
novacomputes()[source]
novahypervisors()[source]
set_in_maintenance(nodes)[source]

Set compute nodes in maintenance mode.

users_on_tenant(tenant)[source]

List user per project.