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+# Copyright (c) 2015 Cisco and/or its affiliates.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import shlex
+from ssh import SSH
+from subprocess import Popen, PIPE, call
+from tempfile import NamedTemporaryFile
+from os.path import basename
+from constants import Constants as con
+from robot.api import logger
+
+__all__ = ["SetupFramework"]
+
+class SetupFramework(object):
+ """Setup suite run on topology nodes.
+
+ Many VAT/CLI based tests need the scripts at remote hosts before executing
+ them. This class packs the whole testing directory and copies it over
+ to all nodes in topology under /tmp/
+
+ """
+
+ def __init__(self):
+ pass
+
+ def __pack_framework_dir(self):
+ """Pack the testing WS into temp file, return its name."""
+
+ tmpfile = NamedTemporaryFile(suffix=".tgz", prefix="openvpp-testing-")
+ file_name = tmpfile.name
+ tmpfile.close()
+
+ proc = Popen(shlex.split("tar -zcf {0} .".format(file_name)),
+ stdout=PIPE, stderr=PIPE)
+ (stdout, stderr) = proc.communicate()
+
+ logger.debug(stdout)
+ logger.debug(stderr)
+
+ return_code = proc.wait()
+ if 0 != return_code:
+ raise Exception("Could not pack testing framework.")
+
+ return file_name
+
+ def __copy_tarball_to_node(self, tarball, node):
+ logger.console('Copying tarball to {0}'.format(node['host']))
+ ssh = SSH()
+ ssh.connect(node)
+
+ ssh.scp(tarball, "/tmp/")
+
+ def __extract_tarball_at_node(self, tarball, node):
+ logger.console('Extracting tarball to {0} on {1}'.format(
+ con.REMOTE_FW_DIR, node['host']))
+ ssh = SSH()
+ ssh.connect(node)
+
+ cmd = 'rm -rf {1}; mkdir {1} ; sudo -Sn tar -zxf {0} -C {1};'.format(
+ tarball, con.REMOTE_FW_DIR)
+ (ret_code, stdout, stderr) = ssh.exec_command(cmd, timeout=30)
+ if 0 != ret_code:
+ logger.error('Unpack error: {0}'.format(stderr))
+ raise Exception('Failed to unpack {0} at node {1}'.format(
+ tarball, node['host']))
+
+ def __delete_local_tarball(self, tarball):
+ call(shlex.split('sh -c "rm {0} > /dev/null 2>&1"'.format(tarball)))
+
+ def setup_framework(self, nodes):
+ """Pack the whole directory and extract in temp on each node."""
+
+ tarball = self.__pack_framework_dir()
+ logger.console('Framework packed to {0}'.format(tarball))
+ remote_tarball = "/tmp/{0}".format(basename(tarball))
+
+ for node in nodes.values():
+ self.__copy_tarball_to_node(tarball, node)
+ self.__extract_tarball_at_node(remote_tarball, node)
+
+ logger.trace('Test framework copied to all topology nodes')
+ self.__delete_local_tarball(tarball)
+