diff options
Diffstat (limited to 'resources/libraries/python/VppConfigGenerator.py')
| -rw-r--r-- | resources/libraries/python/VppConfigGenerator.py | 660 |
1 files changed, 205 insertions, 455 deletions
diff --git a/resources/libraries/python/VppConfigGenerator.py b/resources/libraries/python/VppConfigGenerator.py index 2a8f202721..039f629309 100644 --- a/resources/libraries/python/VppConfigGenerator.py +++ b/resources/libraries/python/VppConfigGenerator.py @@ -11,558 +11,308 @@ # See the License for the specific language governing permissions and # limitations under the License. -"""VPP Configuration File Generator library""" +"""VPP Configuration File Generator library.""" import re import time -from robot.api import logger - from resources.libraries.python.ssh import SSH from resources.libraries.python.topology import NodeType from resources.libraries.python.topology import Topology __all__ = ['VppConfigGenerator'] -# -# VPP configuration template. -# TODO: Do we need a better place for this? Somewhere in an external -# (template) file? -# Note: We're going to pass this through Python string Formatter, so -# any literal curly braces need to be escaped. -# -VPP_SERVICE_NAME = "vpp" -VPP_CONFIG_FILENAME = "/etc/vpp/startup.conf" -DEFAULT_SOCKETMEM_CONFIG = "1024,1024" -VPP_CONFIG_TEMPLATE = """ -unix {{ - nodaemon - log /tmp/vpe.log - cli-listen localhost:5002 - full-coredump -}} - -api-trace {{ - on -}} -{heapsizeconfig} -cpu {{ -{cpuconfig} -}} - -dpdk {{ - socket-mem {socketmemconfig} - dev default {{ - {rxqueuesconfig} - {txqueuesconfig} - }} -{pciconfig} - {cryptodevconfig} - {uiodriverconfig} -{nomultiseg} -{enablevhostuser} -}} - -ip6 {{ - hash-buckets 2000000 - heap-size 3G -}} -{snatconfig} -""" -# End VPP configuration template. - - class VppConfigGenerator(object): - """VPP Configuration File Generator""" + """VPP Configuration File Generator.""" def __init__(self): + # VPP Node to apply configuration on + self._node = '' + # VPP Hostname + self._hostname = '' + # VPP Configuration self._nodeconfig = {} + # Serialized VPP Configuration + self._vpp_config = '' + # VPP Service name + self._vpp_service_name = 'vpp' + # VPP Configuration file path + self._vpp_config_filename = '/etc/vpp/startup.conf' - def add_pci_all_devices(self, node): - """Add all PCI devices from topology file to startup config + def set_node(self, node): + """Set DUT node. - :param node: DUT node + :param node: Node to store configuration on. :type node: dict - :returns: nothing + :raises RuntimeError: If Node type is not DUT. """ - for port in node['interfaces'].keys(): - pci_addr = Topology.get_interface_pci_addr(node, port) - if pci_addr: - self.add_pci_device(node, pci_addr) - def add_pci_device(self, node, *pci_devices): - """Add PCI device configuration for node. + if node['type'] != NodeType.DUT: + raise RuntimeError('Startup config can only be applied to DUT' + 'node.') + self._node = node + self._hostname = Topology.get_node_hostname(node) - :param node: DUT node. - :param pci_devices: PCI devices (format 0000:00:00.0 or 00:00.0) - :type node: dict - :type pci_devices: tuple - :returns: nothing + def set_config_filename(self, filename): + """Set startup configuration filename. + + :param filename: Startup configuration filename. + :type filename: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') + self._vpp_config_filename = filename - # Specific device was given. - hostname = Topology.get_node_hostname(node) + def add_config_item(self, config, value, path): + """Add startup configuration item. - pattern = re.compile("^[0-9A-Fa-f]{4}:[0-9A-Fa-f]{2}:" - "[0-9A-Fa-f]{2}\\.[0-9A-Fa-f]$") - for pci_device in pci_devices: - if not pattern.match(pci_device): - raise ValueError('PCI address {} to be added to host {} ' - 'is not in valid format xxxx:xx:xx.x'. - format(pci_device, hostname)) + :param config: Startup configuration of node. + :param value: Value to insert. + :param path: Path where to insert item. + :type config: dict + :type value: str + :type path: list + """ - if hostname not in self._nodeconfig: - self._nodeconfig[hostname] = {} - if 'pci_addrs' not in self._nodeconfig[hostname]: - self._nodeconfig[hostname]['pci_addrs'] = [] - self._nodeconfig[hostname]['pci_addrs'].append(pci_device) - logger.debug('Adding PCI device {1} to {0}'.format(hostname, - pci_device)) + if len(path) == 1: + config[path[0]] = value + return + if not config.has_key(path[0]): + config[path[0]] = {} + self.add_config_item(config[path[0]], value, path[1:]) - def add_cpu_config(self, node, cpu_config): - """Add CPU configuration for node. + def dump_config(self, obj, level=-1): + """Dump the startup configuration in VPP config format. - :param node: DUT node. - :param cpu_config: CPU configuration option, as a string. - :type node: dict - :type cpu_config: str + :param obj: Python Object to print. + :param nested_level: Nested level for indentation. + :type obj: Obj + :type nested_level: int :returns: nothing """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname not in self._nodeconfig: - self._nodeconfig[hostname] = {} - if 'cpu_config' not in self._nodeconfig[hostname]: - self._nodeconfig[hostname]['cpu_config'] = [] - self._nodeconfig[hostname]['cpu_config'].append(cpu_config) - logger.debug('Adding {} to hostname {} CPU config'.format(hostname, - cpu_config)) - - def add_socketmem_config(self, node, socketmem_config): - """Add Socket Memory configuration for node. - - :param node: DUT node. - :param socketmem_config: Socket Memory configuration option, - as a string. - :type node: dict - :type socketmem_config: str - :returns: nothing + indent = ' ' + if level >= 0: + self._vpp_config += '{}{{\n'.format((level) * indent) + if isinstance(obj, dict): + for key, val in obj.items(): + if hasattr(val, '__iter__'): + self._vpp_config += '{}{}\n'.format((level + 1) * indent, + key) + self.dump_config(val, level + 1) + else: + self._vpp_config += '{}{} {}\n'.format((level + 1) * indent, + key, val) + else: + for val in obj: + self._vpp_config += '{}{}\n'.format((level + 1) * indent, val) + if level >= 0: + self._vpp_config += '{}}}\n'.format(level * indent) + + def add_unix_log(self, value='/tmp/vpe.log'): + """Add UNIX log configuration. + + :param value: Log file. + :type value: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname not in self._nodeconfig: - self._nodeconfig[hostname] = {} - self._nodeconfig[hostname]['socketmem_config'] = socketmem_config - logger.debug('Setting hostname {} Socket Memory config to {}'. - format(hostname, socketmem_config)) - - def add_heapsize_config(self, node, heapsize_config): - """Add Heap Size configuration for node. - - :param node: DUT node. - :param heapsize_config: Heap Size configuration, as a string. - :type node: dict - :type heapsize_config: str - :returns: nothing - """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname not in self._nodeconfig: - self._nodeconfig[hostname] = {} - self._nodeconfig[hostname]['heapsize_config'] = heapsize_config - logger.debug('Setting hostname {} Heap Size config to {}'. - format(hostname, heapsize_config)) - - def add_rxqueues_config(self, node, rxqueues_config): - """Add Rx Queues configuration for node. - - :param node: DUT node. - :param rxqueues_config: Rxqueues configuration, as a string. - :type node: dict - :type rxqueues_config: str - :returns: nothing - """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname not in self._nodeconfig: - self._nodeconfig[hostname] = {} - if 'rxqueues_config' not in self._nodeconfig[hostname]: - self._nodeconfig[hostname]['rxqueues_config'] = [] - self._nodeconfig[hostname]['rxqueues_config'].append(rxqueues_config) - logger.debug('Setting hostname {} rxqueues config to {}'. - format(hostname, rxqueues_config)) - - def add_no_multi_seg_config(self, node): - """Add No Multi Seg configuration for node. - - :param node: DUT node. - :type node: dict - :returns: nothing - """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname not in self._nodeconfig: - self._nodeconfig[hostname] = {} - if 'no_multi_seg_config' not in self._nodeconfig[hostname]: - self._nodeconfig[hostname]['no_multi_seg_config'] = [] - self._nodeconfig[hostname]['no_multi_seg_config'].append("no-multi-seg") - logger.debug('Setting hostname {} config with {}'. - format(hostname, "no-multi-seg")) - - def add_enable_vhost_user_config(self, node): - """Add enable-vhost-user configuration for node. - - :param node: DUT node. - :type node: dict - :returns: nothing + path = ['unix', 'log'] + self.add_config_item(self._nodeconfig, value, path) + + def add_unix_cli_listen(self, value='localhost:5002'): + """Add UNIX cli-listen configuration. + + :param value: CLI listen address and port. + :type value: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname not in self._nodeconfig: - self._nodeconfig[hostname] = {} - if 'enable_vhost_user' not in self._nodeconfig[hostname]: - self._nodeconfig[hostname]['enable_vhost_user'] = [] - self._nodeconfig[hostname]['enable_vhost_user'].\ - append("enable-vhost-user") - logger.debug('Setting hostname {} config with {}'. - format(hostname, "enable-vhost-user")) - - def add_snat_config(self, node): - """Add SNAT configuration for the node. - - :param node: DUT node. - :type node: dict - :returns: nothing + path = ['unix', 'cli-listen'] + self.add_config_item(self._nodeconfig, value, path) + self._nodeconfig = {'unix': {'nodaemon': ''}} + + def add_unix_nodaemon(self): + """Add UNIX nodaemon configuration.""" + path = ['unix', 'nodaemon'] + self.add_config_item(self._nodeconfig, '', path) + + def add_dpdk_dev(self, *devices): + """Add DPDK PCI device configuration. + + :param devices: PCI device(s) (format xxxx:xx:xx.x) + :type devices: tuple + :raises ValueError: If PCI address format is not valid. """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname not in self._nodeconfig: - self._nodeconfig[hostname] = {} - if 'snat_config' not in self._nodeconfig[hostname]: - self._nodeconfig[hostname]['snat_config'] = [] - self._nodeconfig[hostname]['snat_config'].append("deterministic") - logger.debug('Setting hostname {} config with {}'. - format(hostname, "SNAT")) - - def add_cryptodev_config(self, node, count): - """Add cryptodev configuration for node. - - :param node: DUT node. + + pattern = re.compile("^[0-9A-Fa-f]{4}:[0-9A-Fa-f]{2}:" + "[0-9A-Fa-f]{2}\\.[0-9A-Fa-f]$") + for device in devices: + if not pattern.match(device): + raise ValueError('PCI address {} to be added to host {} ' + 'is not in valid format xxxx:xx:xx.x'. + format(device, self._hostname)) + path = ['dpdk', 'dev {0}'.format(device)] + self.add_config_item(self._nodeconfig, '', path) + + def add_dpdk_cryptodev(self, count): + """Add DPDK Crypto PCI device configuration. + :param count: Number of crypto devices to add. - :type node: dict :type count: int - :returns: nothing - :raises ValueError: If node type is not a DUT """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname not in self._nodeconfig: - self._nodeconfig[hostname] = {} - - cryptodev = Topology.get_cryptodev(node) - cryptodev_config = '' - + cryptodev = Topology.get_cryptodev(self._node) for i in range(count): - cryptodev_config += 'dev {}\n'.format( + cryptodev_config = 'dev {0}'.format( re.sub(r'\d.\d$', '1.'+str(i), cryptodev)) + path = ['dpdk', cryptodev_config] + self.add_config_item(self._nodeconfig, '', path) + self.add_dpdk_uio_driver('igb_uio') - self._nodeconfig[hostname]['cryptodev_config'] = cryptodev_config - logger.debug('Setting hostname {} Cryptodev config to {}'. - format(hostname, cryptodev_config)) - - uio_driver_config = 'uio-driver {}'.\ - format(Topology.get_uio_driver(node)) + def add_dpdk_dev_default_rxq(self, value): + """Add DPDK dev default rxq configuration. - self._nodeconfig[hostname]['uio_driver_config'] = uio_driver_config - logger.debug('Setting hostname {} uio_driver config to {}'. - format(hostname, uio_driver_config)) + :param value: Default number of rxqs. + :type value: str + """ + path = ['dpdk', 'dev default', 'num-rx-queues'] + self.add_config_item(self._nodeconfig, value, path) - def remove_all_pci_devices(self, node): - """Remove PCI device configuration from node. + def add_dpdk_dev_default_txq(self, value): + """Add DPDK dev default txq configuration. - :param node: DUT node. - :type node: dict - :returns: nothing + :param value: Default number of txqs. + :type value: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname in self._nodeconfig: - self._nodeconfig[hostname]['pci_addrs'] = [] - logger.debug('Clearing all PCI devices for hostname {}.'. - format(hostname)) + path = ['dpdk', 'dev default', 'num-tx-queues'] + self.add_config_item(self._nodeconfig, value, path) - def remove_all_cpu_config(self, node): - """Remove CPU configuration from node. + def add_dpdk_socketmem(self, value): + """Add DPDK socket memory configuration. - :param node: DUT node. - :type node: dict - :returns: nothing + :param value: Socket memory size. + :type value: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname in self._nodeconfig: - self._nodeconfig[hostname]['cpu_config'] = [] - logger.debug('Clearing all CPU config for hostname {}.'. - format(hostname)) + path = ['dpdk', 'socket-mem'] + self.add_config_item(self._nodeconfig, value, path) - def remove_socketmem_config(self, node): - """Remove Socket Memory configuration from node. + def add_dpdk_uio_driver(self, value): + """Add DPDK uio-driver configuration. - :param node: DUT node. - :type node: dict - :returns: nothing + :param value: DPDK uio-driver configuration. + :type value: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname in self._nodeconfig: - self._nodeconfig[hostname].pop('socketmem_config', None) - logger.debug('Clearing Socket Memory config for hostname {}.'. - format(hostname)) + path = ['dpdk', 'uio-driver'] + self.add_config_item(self._nodeconfig, value, path) - def remove_cryptodev_config(self, node): - """Remove Cryptodev configuration from node. + def add_cpu_main_core(self, value): + """Add CPU main core configuration. - :param node: DUT node. - :type node: dict - :returns: nothing - :raises ValueError: If node type is not a DUT + :param value: Main core option. + :type value: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname in self._nodeconfig: - self._nodeconfig[hostname].pop('cryptodev_config', None) - logger.debug('Clearing Cryptodev config for hostname {}.'. - format(hostname)) + path = ['cpu', 'main-core'] + self.add_config_item(self._nodeconfig, value, path) - def remove_heapsize_config(self, node): - """Remove Heap Size configuration from node. + def add_cpu_corelist_workers(self, value): + """Add CPU corelist-workers configuration. - :param node: DUT node. - :type node: dict - :returns: nothing + :param value: Corelist-workers option. + :type value: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname in self._nodeconfig: - self._nodeconfig[hostname].pop('heapsize_config', None) - logger.debug('Clearing Heap Size config for hostname {}.'. - format(hostname)) + path = ['cpu', 'corelist-workers'] + self.add_config_item(self._nodeconfig, value, path) - def remove_rxqueues_config(self, node): - """Remove Rxqueues configuration from node. + def add_heapsize(self, value): + """Add Heapsize configuration. - :param node: DUT node. - :type node: dict - :returns: nothing + :param value: Amount of heapsize. + :type value: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname in self._nodeconfig: - self._nodeconfig[hostname]['rxqueues_config'] = [] - logger.debug('Clearing rxqueues config for hostname {}.'. - format(hostname)) + path = ['heapsize'] + self.add_config_item(self._nodeconfig, value, path) - def remove_no_multi_seg_config(self, node): - """Remove No Multi Seg configuration from node. + def add_api_trace(self): + """Add API trace configuration.""" + path = ['api-trace', 'on'] + self.add_config_item(self._nodeconfig, path, '') - :param node: DUT node. - :type node: dict - :returns: nothing + def add_ip6_hash_buckets(self, value): + """Add IP6 hash buckets configuration. + + :param value: Number of IP6 hash buckets. + :type value: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname in self._nodeconfig: - self._nodeconfig[hostname]['no_multi_seg_config'] = [] - logger.debug('Clearing No Multi Seg config for hostname {}.'. - format(hostname)) + path = ['ip6', 'hash-buckets'] + self.add_config_item(self._nodeconfig, value, path) - def remove_enable_vhost_user_config(self, node): - """Remove enable-vhost-user configuration from node. + def add_ip6_heap_size(self, value): + """Add IP6 heap-size configuration. - :param node: DUT node. - :type node: dict - :returns: nothing + :param value: IP6 Heapsize amount. + :type value: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname in self._nodeconfig: - self._nodeconfig[hostname]['enable_vhost_user'] = [] - logger.debug('Clearing enable-vhost-user config for hostname {}.'. - format(hostname)) + path = ['ip6', 'heap-size'] + self.add_config_item(self._nodeconfig, value, path) - def remove_snat_config(self, node): - """Remove SNAT configuration for the node. + def add_dpdk_no_multi_seg(self): + """Add DPDK no-multi-seg configuration.""" + path = ['dpdk', 'no-multi-seg'] + self.add_config_item(self._nodeconfig, '', path) - :param node: DUT node. - :type node: dict - :returns: nothing + def add_snat(self, value='deterministic'): + """Add SNAT configuration. + + :param value: SNAT mode. + :type value: str """ - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - if hostname in self._nodeconfig: - self._nodeconfig[hostname]['snat_config'] = [] - logger.debug('Clearing SNAT config for hostname {}.'.format(hostname)) + path = ['snat'] + self.add_config_item(self._nodeconfig, value, path) - def apply_config(self, node, waittime=5, retries=12): + def apply_config(self, waittime=5, retries=12): """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 node: DUT node. :param waittime: Time to wait for VPP to restart (default 5 seconds). :param retries: Number of times (default 12) to re-try waiting. - :type node: dict :type waittime: int :type retries: int :raises RuntimeError: If writing config file failed, or restarting of VPP failed. """ - - if node['type'] != NodeType.DUT: - raise ValueError('Node type is not a DUT') - hostname = Topology.get_node_hostname(node) - - cpuconfig = "" - pciconfig = "" - socketmemconfig = DEFAULT_SOCKETMEM_CONFIG - heapsizeconfig = "" - rxqueuesconfig = "" - txqueuesconfig = "" - nomultiseg = "" - enablevhostuser = "" - cryptodevconfig = "" - uiodriverconfig = "" - snatconfig = "" - - if hostname in self._nodeconfig: - cfg = self._nodeconfig[hostname] - if 'cpu_config' in cfg: - cpuconfig = " " + "\n ".join(cfg['cpu_config']) - - if 'pci_addrs' in cfg: - pciconfig = " dev " + "\n dev ".join(cfg['pci_addrs']) - - if 'socketmem_config' in cfg: - socketmemconfig = cfg['socketmem_config'] - - if 'cryptodev_config' in cfg: - cryptodevconfig = cfg['cryptodev_config'] - - if 'uio_driver_config' in cfg: - uiodriverconfig = cfg['uio_driver_config'] - - if 'heapsize_config' in cfg: - heapsizeconfig = "\nheapsize {}\n".\ - format(cfg['heapsize_config']) - - if 'rxqueues_config' in cfg: - rxqueuesconfig = " " + "\n ".join(cfg['rxqueues_config']) - - if 'no_multi_seg_config' in cfg: - nomultiseg = " " + "\n ".join(cfg['no_multi_seg_config']) - - if 'enable_vhost_user' in cfg: - enablevhostuser = " " + "\n ".join(cfg['enable_vhost_user']) - - if 'snat_config' in cfg: - snatconfig = "snat {\n" - snatconfig += " " + "\n ".join(cfg['snat_config']) - snatconfig += "\n}" - - vppconfig = VPP_CONFIG_TEMPLATE.format(cpuconfig=cpuconfig, - pciconfig=pciconfig, - cryptodevconfig=cryptodevconfig, - uiodriverconfig=uiodriverconfig, - socketmemconfig=socketmemconfig, - heapsizeconfig=heapsizeconfig, - rxqueuesconfig=rxqueuesconfig, - txqueuesconfig=txqueuesconfig, - nomultiseg=nomultiseg, - enablevhostuser=enablevhostuser, - snatconfig=snatconfig) - - logger.debug('Writing VPP config to host {}: "{}"'.format(hostname, - vppconfig)) + self.dump_config(self._nodeconfig) ssh = SSH() - ssh.connect(node) + ssh.connect(self._node) # We're using this "| sudo tee" construct because redirecting - # a sudo'd outut ("sudo echo xxx > /path/to/file") does not + # a sudo's output ("sudo echo xxx > /path/to/file") does not # work on most platforms... - (ret, stdout, stderr) = \ + (ret, _, _) = \ ssh.exec_command('echo "{0}" | sudo tee {1}'. - format(vppconfig, VPP_CONFIG_FILENAME)) + format(self._vpp_config, + self._vpp_config_filename)) if ret != 0: - logger.debug('Writing config file failed to node {}'. - format(hostname)) - logger.debug('stdout: {}'.format(stdout)) - logger.debug('stderr: {}'.format(stderr)) raise RuntimeError('Writing config file failed to node {}'. - format(hostname)) + format(self._hostname)) # Instead of restarting, we'll do separate start and stop # actions. This way we don't care whether VPP was running # to begin with. - ssh.exec_command('sudo service {} stop'.format(VPP_SERVICE_NAME)) - (ret, stdout, stderr) = \ - ssh.exec_command('sudo service {} start'.format(VPP_SERVICE_NAME)) + ssh.exec_command('sudo service {} stop' + .format(self._vpp_service_name)) + (ret, _, _) = \ + ssh.exec_command('sudo service {} start' + .format(self._vpp_service_name)) if ret != 0: - logger.debug('Restarting VPP failed on node {}'. - format(hostname)) - logger.debug('stdout: {}'.format(stdout)) - logger.debug('stderr: {}'.format(stderr)) raise RuntimeError('Restarting VPP failed on node {}'. - format(hostname)) + format(self._hostname)) # Sleep <waittime> seconds, up to <retry> times, # and verify if VPP is running. - vpp_is_running = False - retries_left = retries - while (not vpp_is_running) and (retries_left > 0): + for _ in range(retries): time.sleep(waittime) - retries_left -= 1 - - # FIXME: Need to find a good way to check if VPP is operational. - # - # If VatTerminal/VatExecutor is anything like vppctl or - # vpp_api_test, then in case VPP is NOT running it will block for - # 30 seconds or so and not even return if VPP becomes alive during - # that time. This makes it unsuitable in this case. We either need - # a call that returns immediately, indicating whether VPP is - # healthy or not, or a call that waits (up to a defined length - # of time) and returns immediately if VPP is or becomes healthy. - (ret, stdout, stderr) = \ + (ret, _, _) = \ ssh.exec_command('echo show hardware-interfaces | ' - 'nc 0 5002') + 'nc 0 5002 || echo "VPP not yet running"') if ret == 0: - vpp_is_running = True - else: - logger.debug('VPP not yet running, {} retries left'. - format(retries_left)) - if retries_left == 0: + break + else: raise RuntimeError('VPP failed to restart on node {}'. - format(hostname)) - logger.debug('VPP interfaces found on node {}'. - format(stdout)) + format(self._hostname)) |