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 DMM on {0} ({1})'.format(node['host'], arch))
102 (ret_code, _, stderr) = ssh.exec_command(
103 'cd {0}/{1} && ./install_prereq.sh {2} 2>&1 | tee '
104 'log_install_prereq.txt'
105 .format(con.REMOTE_FW_DIR, con.DMM_SCRIPTS, arch), timeout=600)
108 logger.error('Install DMM error: {0}'.format(stderr))
109 raise RuntimeError('Install prereq failed')
111 logger.console('Install DMM on {0} success!'.format(node['host']))
113 def setup_node(args):
114 """Run all set-up methods for a node.
116 This method is used as map_async parameter. It receives tuple with all
117 parameters as passed to map_async function.
119 :param args: All parameters needed to setup one node.
121 :returns: True - success, False - error
123 :raises RuntimeError: If node setup failed.
125 tarball, remote_tarball, node = args
127 # if unset, arch defaults to x86_64
128 Topology.get_node_arch(node)
131 if node['type'] == NodeType.DUT:
132 copy_tarball_to_node(tarball, node)
133 extract_tarball_at_node(remote_tarball, node)
134 install_dmm_test(node)
135 except RuntimeError as exc:
136 logger.error("Node setup failed, error:'{0}'".format(exc.message))
139 logger.console('Setup of node {0} done'.format(node['host']))
143 """Setup suite run on topology nodes.
145 Many VAT/CLI based tests need the scripts at remote hosts before executing
146 them. This class packs the whole testing directory and copies it over
147 to all nodes in topology under /tmp/
151 def setup_dmm_test(nodes):
152 """Pack the whole directory and extract in temp on each node."""
154 tarball = pack_framework_dir()
155 msg = 'Framework packed to {0}'.format(tarball)
158 remote_tarball = "/tmp/{0}".format(basename(tarball))
160 # Turn off logging since we use multiprocessing.
161 log_level = BuiltIn().set_log_level('NONE')
162 params = ((tarball, remote_tarball, node) for node in nodes.values())
163 pool = Pool(processes=len(nodes))
164 result = pool.map_async(setup_node, params)
169 BuiltIn().set_log_level(log_level)
172 'Executed node setups in parallel, waiting for processes to end')
175 results = result.get()
176 node_setup_success = all(results)
177 logger.info('Results: {0}'.format(results))
179 logger.trace('Test framework copied to all topology nodes')
180 delete_local_tarball(tarball)
181 if node_setup_success:
182 logger.console('All nodes are ready')
184 logger.console('Failed to setup dpdk on all the nodes')