1 # Copyright (c) 2021 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.
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.
18 TODO: Figure out how to export JSON from SSH outside main Robot thread.
21 from os import environ, remove
22 from tempfile import NamedTemporaryFile
26 from robot.api import logger
28 from resources.libraries.python.Constants import Constants as con
29 from resources.libraries.python.ssh import exec_cmd_no_error, scp_node
30 from resources.libraries.python.LocalExecution import run
31 from resources.libraries.python.topology import NodeType
33 __all__ = [u"SetupFramework"]
36 def pack_framework_dir():
37 """Pack the testing WS into temp file, return its name.
39 :returns: Tarball file name.
41 :raises Exception: When failed to pack testing framework.
45 directory = environ[u"TMPDIR"]
49 if directory is not None:
50 tmpfile = NamedTemporaryFile(
51 suffix=u".tgz", prefix=u"csit-testing-", dir=f"{directory}"
54 tmpfile = NamedTemporaryFile(suffix=u".tgz", prefix=u"csit-testing-")
55 file_name = tmpfile.name
60 u"tar", u"--sparse", u"--exclude-vcs", u"--exclude=output*.xml",
61 u"--exclude=./tmp", u"-zcf", file_name, u"."
62 ], msg=u"Could not pack testing framework"
68 def copy_tarball_to_node(tarball, node):
69 """Copy tarball file from local host to remote node.
71 :param tarball: Path to tarball to upload.
72 :param node: Dictionary created from topology.
78 f"Copying tarball to {node[u'type']} host {node[u'host']}, "
79 f"port {node[u'port']} starts."
81 scp_node(node, tarball, u"/tmp/")
83 f"Copying tarball to {node[u'type']} host {node[u'host']}, "
84 f"port {node[u'port']} done."
88 def extract_tarball_at_node(tarball, node):
89 """Extract tarball at given node.
91 Extracts tarball using tar on given node to specific CSIT location.
93 :param tarball: Path to tarball to upload.
94 :param node: Dictionary created from topology.
98 :raises RuntimeError: When failed to unpack tarball.
101 f"Extracting tarball to {con.REMOTE_FW_DIR} on {node[u'type']} "
102 f"host {node[u'host']}, port {node[u'port']} starts."
104 cmd = f"sudo rm -rf {con.REMOTE_FW_DIR}; mkdir {con.REMOTE_FW_DIR}; " \
105 f"tar -zxf {tarball} -C {con.REMOTE_FW_DIR}; rm -f {tarball}"
108 message=f"Failed to extract {tarball} at node {node[u'type']} "
109 f"host {node[u'host']}, port {node[u'port']}",
110 timeout=240, include_reason=True, export=False
113 f"Extracting tarball to {con.REMOTE_FW_DIR} on {node[u'type']} "
114 f"host {node[u'host']}, port {node[u'port']} done."
118 def create_env_directory_at_node(node):
119 """Create fresh virtualenv to a directory, install pip requirements.
121 Return stdout and stderr of the command,
122 so we see which installs are behaving weird (e.g. attempting download).
124 :param node: Node to create virtualenv on.
126 :returns: Stdout and stderr.
128 :raises RuntimeError: When failed to setup virtualenv.
131 f"Virtualenv setup including requirements.txt on {node[u'type']} "
132 f"host {node[u'host']}, port {node[u'port']} starts."
134 cmd = f"cd {con.REMOTE_FW_DIR} && rm -rf env && virtualenv " \
135 f"-p $(which python3) --system-site-packages --never-download env " \
136 f"&& source env/bin/activate && ANSIBLE_SKIP_CONFLICT_CHECK=1 " \
137 f"pip3 install -r requirements.txt"
138 stdout, stderr = exec_cmd_no_error(
139 node, cmd, timeout=100, include_reason=True, export=False,
140 message=f"Failed install at node {node[u'type']} host {node[u'host']}, "
141 f"port {node[u'port']}"
144 f"Virtualenv setup on {node[u'type']} host {node[u'host']}, "
145 f"port {node[u'port']} done."
147 return stdout, stderr
150 def setup_node(node, tarball, remote_tarball, results=None, logs=None):
151 """Copy a tarball to a node and extract it.
153 :param node: A node where the tarball will be copied and extracted.
154 :param tarball: Local path of tarball to be copied.
155 :param remote_tarball: Remote path of the tarball.
156 :param results: A list where to store the result of node setup, optional.
157 :param logs: A list where to store anything that should be logged.
160 :type remote_tarball: str
163 :returns: True - success, False - error
167 copy_tarball_to_node(tarball, node)
168 extract_tarball_at_node(remote_tarball, node)
169 if node[u"type"] == NodeType.TG:
170 stdout, stderr = create_env_directory_at_node(node)
171 if isinstance(logs, list):
172 logs.append(f"{node[u'host']} Env stdout: {stdout}")
173 logs.append(f"{node[u'host']} Env stderr: {stderr}")
175 # any exception must result in result = False
176 # since this runs in a thread and can't be caught anywhere else
177 err_msg = f"Node {node[u'type']} host {node[u'host']}, " \
178 f"port {node[u'port']} setup failed."
179 logger.console(err_msg)
180 if isinstance(logs, list):
181 logs.append(f"{err_msg} Exception: {traceback.format_exc()}")
185 f"Setup of node {node[u'type']} host {node[u'host']}, "
186 f"port {node[u'port']} done."
190 if isinstance(results, list):
191 results.append(result)
195 def delete_local_tarball(tarball):
196 """Delete local tarball to prevent disk pollution.
198 :param tarball: Path of local tarball to delete.
205 def delete_framework_dir(node):
206 """Delete framework directory in /tmp/ on given node.
208 :param node: Node to delete framework directory on.
212 f"Deleting framework directory on {node[u'type']} host {node[u'host']},"
213 f" port {node[u'port']} starts."
216 node, f"sudo rm -rf {con.REMOTE_FW_DIR}",
217 message=f"Framework delete failed at node {node[u'type']} "
218 f"host {node[u'host']}, port {node[u'port']}",
219 timeout=100, include_reason=True, export=False
222 f"Deleting framework directory on {node[u'type']} host {node[u'host']},"
223 f" port {node[u'port']} done."
227 def cleanup_node(node, results=None, logs=None):
228 """Delete a tarball from a node.
230 :param node: A node where the tarball will be delete.
231 :param results: A list where to store the result of node cleanup, optional.
232 :param logs: A list where to store anything that should be logged.
236 :returns: True - success, False - error
240 delete_framework_dir(node)
242 err_msg = f"Cleanup of node {node[u'type']} host {node[u'host']}, " \
243 f"port {node[u'port']} failed."
244 logger.console(err_msg)
245 if isinstance(logs, list):
246 logs.append(f"{err_msg} Exception: {traceback.format_exc()}")
250 f"Cleanup of node {node[u'type']} host {node[u'host']}, "
251 f"port {node[u'port']} done."
255 if isinstance(results, list):
256 results.append(result)
260 class SetupFramework:
261 """Setup suite run on topology nodes.
263 Many VAT/CLI based tests need the scripts at remote hosts before executing
264 them. This class packs the whole testing directory and copies it over
265 to all nodes in topology under /tmp/
269 def setup_framework(nodes):
270 """Pack the whole directory and extract in temp on each node.
272 :param nodes: Topology nodes.
274 :raises RuntimeError: If setup framework failed.
277 tarball = pack_framework_dir()
278 msg = f"Framework packed to {tarball}"
281 remote_tarball = f"{tarball}"
287 for node in nodes.values():
288 args = node, tarball, remote_tarball, results, logs
289 thread = threading.Thread(target=setup_node, args=args)
291 threads.append(thread)
294 u"Executing node setups in parallel, waiting for threads to end."
297 for thread in threads:
300 logger.info(f"Results: {results}")
305 delete_local_tarball(tarball)
307 logger.console(u"All nodes are ready.")
308 for node in nodes.values():
310 f"Setup of node {node[u'type']} host {node[u'host']}, "
311 f"port {node[u'port']} done."
314 raise RuntimeError(u"Failed to setup framework.")
317 class CleanupFramework:
318 """Clean up suite run on topology nodes."""
321 def cleanup_framework(nodes):
322 """Perform cleanup on each node.
324 :param nodes: Topology nodes.
326 :raises RuntimeError: If cleanup framework failed.
333 for node in nodes.values():
334 thread = threading.Thread(target=cleanup_node,
335 args=(node, results, logs))
337 threads.append(thread)
340 u"Executing node cleanups in parallel, waiting for threads to end."
343 for thread in threads:
346 logger.info(f"Results: {results}")
352 logger.console(u"All nodes cleaned up.")
354 raise RuntimeError(u"Failed to cleaned up framework.")