1 # Copyright (c) 2016 Cisco and/or its affiliates.
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.
15 from subprocess import Popen, PIPE, call
16 from multiprocessing import Pool
17 from tempfile import NamedTemporaryFile
18 from os.path import basename
19 from robot.api import logger
20 from robot.libraries.BuiltIn import BuiltIn
22 from constants import Constants as con
23 from topology import NodeType
25 __all__ = ["SetupFramework"]
28 def pack_framework_dir():
29 """Pack the testing WS into temp file, return its name."""
31 tmpfile = NamedTemporaryFile(suffix=".tgz", prefix="openvpp-testing-")
32 file_name = tmpfile.name
36 shlex.split("tar --exclude-vcs -zcf {0} .".format(file_name)),
37 stdout=PIPE, stderr=PIPE)
38 (stdout, stderr) = proc.communicate()
43 return_code = proc.wait()
45 raise Exception("Could not pack testing framework.")
50 def copy_tarball_to_node(tarball, node):
51 logger.console('Copying tarball to {0}'.format(node['host']))
55 ssh.scp(tarball, "/tmp/")
58 def extract_tarball_at_node(tarball, node):
59 logger.console('Extracting tarball to {0} on {1}'.format(
60 con.REMOTE_FW_DIR, node['host']))
64 cmd = 'sudo rm -rf {1}; mkdir {1} ; tar -zxf {0} -C {1}; ' \
65 'rm -f {0}'.format(tarball, con.REMOTE_FW_DIR)
66 (ret_code, stdout, stderr) = ssh.exec_command(cmd, timeout=30)
68 logger.error('Unpack error: {0}'.format(stderr))
69 raise Exception('Failed to unpack {0} at node {1}'.format(
70 tarball, node['host']))
73 def create_env_directory_at_node(node):
74 """Create fresh virtualenv to a directory, install pip requirements."""
75 logger.console('Extracting virtualenv, installing requirements.txt '
76 'on {0}'.format(node['host']))
79 (ret_code, stdout, stderr) = ssh.exec_command(
80 'cd {0} && rm -rf env && virtualenv env && '
81 '. env/bin/activate && '
82 'pip install -r requirements.txt'.format(con.REMOTE_FW_DIR))
84 logger.error('Virtualenv creation error: {0}'.format(stdout + stderr))
85 raise Exception('Virtualenv setup failed')
87 def install_dependencies(node):
88 """TEMPORARY FUNCTION TO INSTALL DEPENDENCIES ON NODES BEFORE THE VIRL
89 HOSTS HAVE ALL PREREQUISITES INSTALLED"""
90 logger.console('Installing prerequisites on {0}'.format(node['host']))
93 (ret_code, stdout, stderr) = ssh.exec_command(
94 'sudo apt-get -y update; ' \
95 'sudo apt-get -y install python-virtualenv python-dev', timeout=120)
97 logger.error('Failed to install prerequisites: {0}'.
98 format(stdout + stderr))
99 raise Exception('Virtualenv setup failed')
101 def setup_node(args):
102 tarball, remote_tarball, node = args
103 copy_tarball_to_node(tarball, node)
104 extract_tarball_at_node(remote_tarball, node)
105 install_dependencies(node)
106 if node['type'] == NodeType.TG:
107 create_env_directory_at_node(node)
110 def delete_local_tarball(tarball):
111 call(shlex.split('sh -c "rm {0} > /dev/null 2>&1"'.format(tarball)))
114 class SetupFramework(object):
115 """Setup suite run on topology nodes.
117 Many VAT/CLI based tests need the scripts at remote hosts before executing
118 them. This class packs the whole testing directory and copies it over
119 to all nodes in topology under /tmp/
125 def setup_framework(self, nodes):
126 """Pack the whole directory and extract in temp on each node."""
128 tarball = pack_framework_dir()
129 msg = 'Framework packed to {0}'.format(tarball)
132 remote_tarball = "/tmp/{0}".format(basename(tarball))
134 # Turn off loggining since we use multiprocessing
135 log_level = BuiltIn().set_log_level('NONE')
136 params = ((tarball, remote_tarball, node) for node in nodes.values())
137 pool = Pool(processes=len(nodes))
138 result = pool.map_async(setup_node, params)
143 'Executed node setups in parallel, waiting for processes to end')
146 logger.info('Results: {0}'.format(result.get()))
149 BuiltIn().set_log_level(log_level)
150 logger.trace('Test framework copied to all topology nodes')
151 delete_local_tarball(tarball)