1 # Copyright (c) 2018 Huawei Technologies Co.,Ltd.
2 # Licensed under the Apache License, Version 2.0 (the "License");
3 # you may not use this file except in compliance with the License.
4 # You may obtain a copy of the License at:
6 # http://www.apache.org/licenses/LICENSE-2.0
8 # Unless required by applicable law or agreed to in writing, software
9 # distributed under the License is distributed on an "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 # See the License for the specific language governing permissions and
12 # limitations under the License.
14 """This module exists to provide setup utilities for the framework on topology
15 nodes. All tasks required to be run before the actual tests are started is
16 supposed to end up here.
19 from shlex import split
20 from subprocess import Popen, PIPE
21 from multiprocessing import Pool
22 from tempfile import NamedTemporaryFile
23 from os.path import basename
25 from robot.api import logger
26 from robot.libraries.BuiltIn import BuiltIn
28 from resources.libraries.python.ssh import SSH
29 from resources.libraries.python.DMM.DMMConstants import DMMConstants as con
30 from resources.libraries.python.topology import NodeType, Topology
31 from resources.libraries.python.TLDK.SetupTLDKTest import copy_tarball_to_node,\
34 __all__ = ["SetupDMMTest"]
37 def pack_framework_dir():
38 """Pack the testing WS into temp file, return its name.
41 :raises RuntimeError: If pack the testing framework failed.
43 tmpfile = NamedTemporaryFile(suffix=".tgz", prefix="DMM-testing-")
44 file_name = tmpfile.name
48 split("tar --exclude-vcs --exclude=./tmp --exclude=dmm_depends.tar.gz"
49 " -zcf {0} .".format(file_name)), stdout=PIPE, stderr=PIPE)
50 (stdout, stderr) = proc.communicate()
55 return_code = proc.wait()
57 raise RuntimeError("Could not pack testing framework.")
61 def extract_tarball_at_node(tarball, node):
62 """Extract tarball at given node.
64 Extracts tarball using tar on given node to specific CSIT location.
65 Raise runtime errors when failed.
67 :param tarball: Path to tarball to upload.
68 :param node: Dictionary created from topology.
72 :raises RuntimeError: If extract tarball failed.
74 logger.console('Extracting tarball to {0} on {1}'.format(
75 con.REMOTE_FW_DIR, node['host']))
79 cmd = 'sudo rm -rf {1}; mkdir {1} ; tar -zxf {0} -C {1}; ' \
80 'rm -f {0};'.format(tarball, con.REMOTE_FW_DIR)
81 (ret_code, _, stderr) = ssh.exec_command(cmd, timeout=30)
83 logger.error('Unpack error: {0}'.format(stderr))
84 raise RuntimeError('Failed to unpack {0} at node {1}'.format(
85 tarball, node['host']))
87 def install_dmm_test(node):
88 """Prepare the DMM test envrionment.
89 Raise errors when failed.
91 :param node: Dictionary created from topology.
94 :raises RuntimeError: If install dmm failed.
97 arch = Topology.get_node_arch(node)
98 logger.console('Install the DMM on {0} ({1})'.format(node['host'], arch))
102 (ret_code, _, stderr) = ssh.exec_command(
103 'cd {0}/{1} && ./install_dmm.sh {2} 2>&1 | tee log_install_dmm.txt'
104 .format(con.REMOTE_FW_DIR, con.DMM_SCRIPTS, arch), timeout=600)
107 logger.error('Install the DMM error: {0}'.format(stderr))
108 raise RuntimeError('Install the DMM failed')
110 logger.console('Install the DMM on {0} success!'.format(node['host']))
112 def setup_node(args):
113 """Run all set-up methods for a node.
115 This method is used as map_async parameter. It receives tuple with all
116 parameters as passed to map_async function.
118 :param args: All parameters needed to setup one node.
120 :returns: True - success, False - error
122 :raises RuntimeError: If node setup failed.
124 tarball, remote_tarball, node = args
126 # if unset, arch defaults to x86_64
127 Topology.get_node_arch(node)
130 if node['type'] == NodeType.DUT:
131 copy_tarball_to_node(tarball, node)
132 extract_tarball_at_node(remote_tarball, node)
133 install_dmm_test(node)
134 except RuntimeError as exc:
135 logger.error("Node setup failed, error:'{0}'".format(exc.message))
138 logger.console('Setup of node {0} done'.format(node['host']))
141 class SetupDMMTest(object):
142 """Setup suite run on topology nodes.
144 Many VAT/CLI based tests need the scripts at remote hosts before executing
145 them. This class packs the whole testing directory and copies it over
146 to all nodes in topology under /tmp/
150 def setup_dmm_test(nodes):
151 """Pack the whole directory and extract in temp on each node."""
153 tarball = pack_framework_dir()
154 msg = 'Framework packed to {0}'.format(tarball)
157 remote_tarball = "/tmp/{0}".format(basename(tarball))
159 # Turn off logging since we use multiprocessing.
160 log_level = BuiltIn().set_log_level('NONE')
161 params = ((tarball, remote_tarball, node) for node in nodes.values())
162 pool = Pool(processes=len(nodes))
163 result = pool.map_async(setup_node, params)
168 BuiltIn().set_log_level(log_level)
171 'Executed node setups in parallel, waiting for processes to end')
174 results = result.get()
175 node_setup_success = all(results)
176 logger.info('Results: {0}'.format(results))
178 logger.trace('Test framework copied to all topology nodes')
179 delete_local_tarball(tarball)
180 if node_setup_success:
181 logger.console('All nodes are ready')
183 logger.console('Failed to setup dpdk on all the nodes')