def apply_config(self, filename=None, retries=60, restart_vpp=True):
"""Generate and apply VPP configuration for node.
Use data from calls to this class to form a startup.conf file and
replace /etc/vpp/startup.conf with it on node.
:param filename: Startup configuration file name.
:param retries: Number of times (default 60) to re-try waiting.
:param restart_vpp: Whether to restart VPP.
:type filename: str
:type retries: int
:type restart_vpp: bool.
:raises RuntimeError: If writing config file failed or restart of VPP
failed or backup of VPP startup.conf failed.
"""
self.dump_config(self._nodeconfig)
ssh = SSH()
ssh.connect(self._node)
if filename is None:
filename = self._vpp_startup_conf
if self._vpp_startup_conf_backup is not None:
ret, _, _ = \
ssh.exec_command('sudo cp {src} {dest}'.
format(src=self._vpp_startup_conf,
dest=self._vpp_startup_conf_backup))
if ret != 0:
raise RuntimeError('Backup of config file failed on node '
'{name}'.format(name=self._hostname))
ret, _, _ = \
ssh.exec_command('echo "{config}" | sudo tee {filename}'.
format(config=self._vpp_config,
filename=filename))
if ret != 0:
raise RuntimeError(
'Writing config file failed to node {name}'.format(
name=self._hostname))
if restart_vpp:
DUTSetup.start_service(self._node, Constants.VPP_UNIT)
# Sleep <waittime> seconds, up to <retry> times,
# and verify if VPP is running.
for _ in range(retries):
time.sleep(1)
ret, stdout, _ = \
ssh.exec_command('echo show pci | nc 0 5002 || '
'echo "VPP not yet running"')
if ret == 0 and 'VPP not yet running' not in stdout:
break
else:
raise RuntimeError(
'VPP failed to restart on node {name}'.format(
name=self._hostname))
def start_vpp_service(node):
"""Start VPP service on the specified node.
:param node: VPP node.
:type node: dict
:raises RuntimeError: If VPP service fails to start.
"""
DUTSetup.start_service(node, Constants.VPP_UNIT)
DUTSetup.get_service_logs(node, Constants.VPP_UNIT)
def verify_vpp_on_all_duts(nodes):
"""Verify that VPP is installed on all DUT nodes.
:param nodes: Nodes in the topology.
:type nodes: dict
"""
for node in nodes.values():
if node['type'] == NodeType.DUT:
DUTSetup.start_service(node, Constants.VPP_UNIT)
VPPUtil.vpp_show_version_verbose(node)
VPPUtil.vpp_show_interfaces(node)
