def hardware(request, config):
"""Fixture for manage the hardware layer.
- start/stop/reboot libvirt/IPMI(/MaaS?) nodes
- snapshot/revert libvirt nodes (fuel-devops only)
- block/unblock libvirt networks/interfaces (fuel-devops only)
This fixture should get a hardware configuration from
'config' object or create a virtual/baremetal underlay
using EnvironmentManager.
Creates a snapshot 'hardware' with ready-to-use virtual environment
(Only for config.hardware.manager='devops'):
- just created virtual nodes in power-on state
- node volumes filled with necessary content
- node network interfaces connected to necessary devices
config.hardware.manager: one of ('devops', 'maas', None)
config.hardware.config: path to the config file for the manager
config.hardware.current_snapshot = Latest created or reverted snapshot
:rtype EnvironmentModel: if config.hardware.manager == 'devops'
:rtype EnvironmentManagerEmpty: if config.hardware.manager == 'empty'
"""
env = None
manager = config.hardware.manager
if manager == 'empty':
# No environment manager is used.
# 'config' should contain config.underlay.ssh settings
# 'config' should contain config.underlay.current_snapshot setting
env = envmanager_empty.EnvironmentManagerEmpty(config=config)
elif manager == 'devops':
# fuel-devops environment manager is used.
# config.underlay.ssh settings can be empty or witn SSH to existing env
# config.underlay.current_snapshot
env = envmanager_devops.EnvironmentManager(config=config)
else:
raise Exception("Unknown hardware manager: '{}'".format(manager))
# for devops manager: power on nodes and wait for SSH
# for empty manager: do nothing
# for maas manager: provision nodes and wait for SSH
if not env.has_snapshot(ext.SNAPSHOT.hardware):
env.start()
env.create_snapshot(ext.SNAPSHOT.hardware)
def fin():
if settings.SHUTDOWN_ENV_ON_TEARDOWN:
LOG.info("Shutdown environment...")
env.stop()
request.addfinalizer(fin)
return env
def main():
"""Create fuel-devops environment from template"""
config = config_fixtures.config()
env = envmanager_devops.EnvironmentManager(config=config)
if not env.has_snapshot(ext.SNAPSHOT.hardware):
env.create_snapshot(ext.SNAPSHOT.hardware)