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How to use stop_ovs method in lisa

Best Python code snippet using lisa_python

dpdksuite.py

Source:dpdksuite.py

...135                    "OVS repoted that DPDK EAL failed to initialize."136                ),137            )138        finally:139            ovs.stop_ovs()140    @TestCaseMetadata(141        description="""142           Install and run ci test for NFF-Go on ubuntu143        """,144        priority=4,145        requirement=simple_requirement(146            min_core_count=8,147            min_nic_count=2,148            network_interface=Sriov(),149            unsupported_features=[Gpu, Infiniband],150            supported_features=[IsolatedResource],151        ),152    )153    def verify_dpdk_nff_go(...

harmless_manager.py

Source:harmless_manager.py

1# Copyright 2017 Mark Szalay2import ConfigParser3import napalm4import sys, getopt5import os6import math7import copy8import subprocess9import time10def delete_vlans_from_juniper(conf_str):11    try:12        start_index = conf_str.index("vlans {")13        opening_parenthesis = 014        end_index = 015        for i in range(start_index+7,len(conf_str)):16            if conf_str[i] == "{":17                opening_parenthesis += 118            if conf_str[i] == "}" and opening_parenthesis != 0:19                opening_parenthesis -= 120            elif conf_str[i] == "}" and opening_parenthesis == 0:21                end_index = i+122                break23        if end_index != 0:24            starting_str = conf_str[0:start_index]25            ending_str = conf_str[end_index:]26            conf_str = starting_str+ending_str27    except:28        pass29    while "vlan {" in conf_str:30        start_index = conf_str.index("vlan {")31        opening_parenthesis = 032        for i in range(start_index + 6, len(conf_str)):33            if conf_str[i] == "{":34                opening_parenthesis += 135            elif conf_str[i] == "}" and opening_parenthesis != 0:36                opening_parenthesis -= 137            elif conf_str[i] == "}" and opening_parenthesis == 0:38                end_index = i + 139                break40        starting_str = conf_str[0:start_index]41        ending_str = conf_str[end_index:]42        conf_str = starting_str + ending_str43    while "port-mode trunk;" in conf_str:44        start_index = conf_str.index("port-mode trunk;")45        starting_str = conf_str[0:start_index]46        ending_str = conf_str[start_index+16:]47        conf_str = starting_str + ending_str48    with open('tmp_config.conf', 'w') as f:49        f.write(conf_str)50    lines = open('tmp_config.conf').readlines()51    temp_cfg_name = 'junos_without_vlan.conf'52    open(temp_cfg_name, 'w').writelines(lines[3:])53    os.remove('tmp_config.conf')54    return "junos_without_vlan.conf"55def delete_vlans_from_arista(running_config):56    new_lines = []57    lines = open(running_config).readlines()58    for line in lines:59        if ("vlan" not in line) and ("trunk" not in line):60            if line.find("Vlan") == -1:61                new_lines.append(line)62    new_lines = new_lines[4:]63    temp_cfg_name = 'arista_without_vlan.conf'64    open(temp_cfg_name, 'w').writelines(new_lines)65    return temp_cfg_name66def create_cfgfile_for_juniper(vlan_if, trunks_if,handled_ports_count):67    configuration = "interfaces {"68    vlan_id = 169    vlans = []70    for interface in vlan_if:71        configuration += "\n    " + interface + " {\n        unit 0 {\n            family ethernet-switching {\n                vlan {\n                    members vlan" + str(72            vlan_id) + ";\n                }\n            }\n        }\n    }"73        vlan_entry = {'interface': interface, 'vlan_name': "vlan" + str(vlan_id), 'vlan_id': str(100 + vlan_id)}74        vlans.append(vlan_entry)75        vlan_id += 176    vlans_temp = copy.copy(vlans)77    for trunk in trunks_if:78        configuration += "\n    " + trunk + " {\n        unit 0 {\n            family ethernet-switching {\n                port-mode trunk;\n                vlan {\n                    members "79        configuration += "[ "80        try:81            trunk_vlans = vlans_temp[:int(handled_ports_count)]82            vlans_temp = vlans_temp[int(handled_ports_count):]83        except:84            print "except"85            trunk_vlans = vlans_temp86        for i in trunk_vlans:87            configuration += " " + i['vlan_name'] + " "88        configuration += " ];\n                }\n            }\n        }\n    }\n"89    configuration += "\n}\nvlans {"90    for vlan in vlans:91        configuration += "\n    " + vlan['vlan_name'] + " {\n        vlan-id " + vlan[92            'vlan_id'] + ";\n        interface {\n            " + vlan['interface'] + ".0;\n        }\n    }"93    configuration += "\n}"94    with open("junos_with_vlan.cfg", 'w') as f:95        f.write(configuration)96    return "junos_with_vlan.cfg"97def create_cfgfile_for_arista(vlans_if, trunks_if,handled_ports_count):98    print '\nCreate new configuration file...'99    config_str = ""100    vlan_id = 101101    config_str += "!\nvlan " + str(vlan_id) + "-" + str(vlan_id+len(vlans_if)-1) + "\n!\n"102    for i in vlans_if:103        config_str += "interface " + str(i) + "\n"104        config_str += "    switchport access vlan " + str(vlan_id) + "\n!\n"105        vlan_id += 1106    vlan = 101107    for trunk in trunks_if:108        config_str += "interface " + str(trunk) + "\n"109        config_str += "    switchport trunk allowed vlan " + str(vlan) + "-" + str(int(vlan+handled_ports_count-1)) + "\n"110        config_str += "    switchport mode trunk"  + "\n!\n"111        vlan += handled_ports_count112    conf_name = "arista.conf"113    with open(conf_name, 'w') as f:114        f.write(config_str)115    return conf_name116def reset_device(device,orig_cfg):117    print "Reset HW device to " +orig_cfg + " state"118    try:119        device.load_replace_candidate(filename=orig_cfg)120        device.commit_config()121        os.remove(orig_cfg)122        print "DONE"123    except Exception as e:124        print "ERROR: " + str(e)125        os.remove(orig_cfg)126        sys.exit(1)127def load_driver(config):128    try:129        driver_name = config.get('Hardware device', 'Driver')130        driver = napalm.get_network_driver(driver_name)131    except Exception as e:132        print "ERROR: "+str(e)133        print "ERROR: Probably napalm does not support the given '" + str(driver_name) + "' driver. Check this website: http://napalm.readthedocs.io/en/latest/support/"134        sys.exit(1)135    return driver, driver_name136def delete_vlans(device,driver_name):137    try:138        device_config = device.get_config()139        old_config_name = str(driver_name) + "_" + time.strftime("%Y-%m-%d_%H:%M:%S", time.gmtime()) + "_original.cfg"140        with open(old_config_name, 'w') as f:141            f.write(device_config['running'])142        print "Currently running config was saved. Configuration file name: " + old_config_name143    except Exception as e:144        print "ERROR: "+str(e)145        sys.exit(1)146    # TODO: create for more driver147    if driver_name == "junos":148        temp_cfg_name = delete_vlans_from_juniper(device_config['running'])149    elif driver_name == "eos":150        temp_cfg_name = delete_vlans_from_arista("old_config_name")151    print "Remove already existing vlans..."152    try:153        device.load_replace_candidate(filename=temp_cfg_name)154        device.commit_config()155        os.remove(temp_cfg_name)156    except Exception as e:157        print "ERROR: " + str(e)158        os.remove(temp_cfg_name)159        sys.exit(1)160def upload_new_config(config,driver_name,device,backup_config_name):161    # Information about vlan and trunk ports162    vlan_if = config.get('Hardware device', 'Used_ports_for_vlan').split(',')163    trunks_if = config.get('Hardware device', 'Used_ports_for_trunk').split(',')164    vlan_ports_count = len(vlan_if)165    print "\nUsed vlan ports: " + str(vlan_ports_count)166    trunk_ports_count = len(trunks_if)167    print "Used trunk ports: " + str(trunk_ports_count)168    handled_ports_count = math.ceil(float(vlan_ports_count) / float(trunk_ports_count))169    print "Number of ports for one trunk: " + str(int(handled_ports_count))170    # Create vlan and trunk interfaces171    # TODO: create for more driver172    print "\nCreate new configuration file"173    if driver_name == "junos":174        file_name = create_cfgfile_for_juniper(vlan_if, trunks_if, handled_ports_count)175    elif driver_name == "eos":176        file_name = create_cfgfile_for_arista(vlan_if, trunks_if, handled_ports_count)177    print "Trying to commit..."178    try:179        device.load_merge_candidate(filename=file_name)180        device.commit_config()181    except Exception as e:182        print "ERROR: " + str(e)183        os.remove(file_name)184        reset_device(device, backup_config_name)185        sys.exit(1)186    print "Commit was successfull :)"187    os.remove(file_name)188def connect_to_device(config,driver):189    if (config.get('Hardware device', 'Port') is not ""):190        device = driver(hostname=config.get('Hardware device', 'Host_IP'),191                        username=config.get('Hardware device', 'Username'),192                        password=config.get('Hardware device', 'Password'),193                        optional_args={'port': config.get('Hardware device', 'Port')})194    else:195        device = driver(hostname=config.get('Hardware device', 'Host_IP'),196                        username=config.get('Hardware device', 'Username'),197                        password=config.get('Hardware device', 'Password'))198    print 'Connecting to the Hardware Device...'199    try:200        device.open()201    except Exception as e:202        print "ERROR: " + str(e)203        sys.exit(1)204    return device205def online_mode():206    """Load a config for the hardware device."""207    #TODO208    # Driver:209    driver = napalm.get_network_driver(config.get('Hardware device', 'Driver'))210    # Connection:211    device = driver(hostname=config.get('Hardware device', 'Host_IP'),212                    username=config.get('Hardware device', 'Username'),213                    password=config.get('Hardware device', 'Password'),214                    optional_args={'port': config.get('Hardware device', 'Port')})215    print 'Connecting to the Hardware Device...'216    device.open()217    # Get interfaces218    device_facts = device.get_facts()219    print "Device: "220    print "\t Vendor: " + device_facts['vendor']221    print "\t Model: " + device_facts['model']222    print "\t OS version : " + device_facts['os_version']223    print "\nInterfaces: "224    for interface in device_facts['interface_list']:225        print "\t" + interface226    print "\nWhat ports do you want to use to harmless?"227    vlan_if = []228    input_if = raw_input('')229    while input_if != "":230        vlan_if.append(input_if)231        input_if = raw_input('')232def backup_mode(new_cfg, config):233    """ UpLoad a backup configuration to the hardware device."""234    #Init used driver:235    driver, driver_name = load_driver(config)236    #Connecting to the device:237    device = connect_to_device(config,driver)238    #Reset device with an older cfg239    reset_device(device, new_cfg)240    device.close()241    print 'Reset Hardware Device to earlier state was successfull!'242    print '------------------------------------------------------------------------------------------------------------'243def offline_mode(config):244    """ UpLoad the HARMLESS configuration to the hardware device."""245    #Init used driver:246    driver, driver_name = load_driver(config)247    #Connecting to the device:248    device = connect_to_device(config,driver)249    #Deleting existing vlans250    backup_config_name = delete_vlans(device, driver_name)251    #Creating and uploading new configuration252    upload_new_config(config, driver_name, device, backup_config_name)253    # close the session with the device.254    device.close()255    print 'Configuring Hardware Device was successfull!'256    print '------------------------------------------------------------------------------------------------------------'257def start_virtual_switches(patch_port_num,trunk_port_num, dpdk):258    print "Stop previously started virtual switch if it's alive"259    subprocess.call("./stop_ovs.sh " + str(patch_port_num) + " " + str(trunk_port_num), shell=True,stderr=False)260    print '------------------------------------------------------------------------------------------------------------'261    262    print "Create and start virtual switches"263    264    dpdk=dpdk.lower()265    if dpdk == "false": 266		subprocess.call("./virtual_switch_starter_U16.sh " + str(patch_port_num) + " " + str(trunk_port_num),shell=True,stderr=False)267    else:268        subprocess.call("./virtual_switch_starter_dpdk.sh " + str(patch_port_num) + " " + str(trunk_port_num),shell=True,stderr=False)269    #subprocess.call("./star_virtual_switch.sh " + str(patch_port_num) + " " + str(trunk_port_num), shell=True)270    #TODO: Create a picture about the connections (wiring)271def main(argv):272    running_mode = None273    config_file = None274    try:275        opts, args = getopt.getopt(argv,"", ["help", "configuration-file=","upload-cfg="])276    except getopt.GetoptError:277        print "Bad parameter!\nUse 'python harmless_manager.py --help'"278        sys.exit(1)279    for opt, arg in opts:280        if opt == "--help":281            print "Usage: python harmless_manager.py <params>\nParams:\n\t--configuration-file=<config file>\n\t--upload-cfg=<config_file>"282            sys.exit(1)283        elif opt in ("--configuration-file="):284            config_file = arg285        elif opt in ("--upload-cfg="):286            new_cfg = arg287            running_mode = "backup_device"288        elif opt in ("--online-mode"):289            running_mode = "online"290        else:291            print 'Bad parameters! Use python harmless_manager.py --help'292            sys.exit(1)293    try:294        config = ConfigParser.ConfigParser()295        config.read(config_file)296    except Exception as e:297        print "ERROR: " + str(e)298        print "ERROR: Probably the configuration file name '" + str(299            config_file) + "' is not correct! Please use: python harmless_manager.py --help"300        sys.exit(1)301    if running_mode == "online":302        print "Online mode is not implemented yet."303        sys.exit(1)304    elif running_mode == "backup_device":305        backup_mode(new_cfg, config)306    else:307        print '################################################'308        print "### Configuring Hardware device for HARMLESS ###"309        print '###########################################################################################################'310        offline_mode(config)311        print '###############################################'312        print "### Creating Software switches for HARMLESS ###"313        print '###########################################################################################################'314        patch_port_num = len(config.get('Hardware device', 'Used_ports_for_vlan').split(','))315        trunk_port_num = len(config.get('Hardware device', 'Used_ports_for_trunk').split(','))316        start_virtual_switches(patch_port_num, trunk_port_num,config.get('HARMLESS', 'DPDK'))317        print '###########################################################################################################'318        print "###                  Configuring HW Switch and Creating Software switches: Done                         ###"319        print '###########################################################################################################'320if __name__ == '__main__':...

dpdkovs.py

Source:dpdkovs.py

...220        # set interface UP221        ip = node.tools[Ip]222        ip.up(self.OVS_BRIDGE_NAME)223        self.teardown_state = self.INTERFACE_UP224    def stop_ovs(self) -> None:225        # teardown based on the state that was reached during setup_ovs226        # this allows use in a 'finally' block227        # leave the node in a usable state for the next test.228        node = self.node229        ip = node.tools[Ip]230        modprobe = node.tools[Modprobe]231        if self.teardown_state == self.INTERFACE_UP:232            ip.down(self.OVS_BRIDGE_NAME)233        if self.teardown_state >= self.PORT_ADD:234            node.execute(235                f"ovs-vsctl del-port {self.OVS_BRIDGE_NAME} p1",236                sudo=True,237                expected_exit_code=0,238                expected_exit_code_failure_message=(...

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