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Diffstat (limited to 'resources/tools/scripts/topo_container_copy.py')
-rw-r--r-- | resources/tools/scripts/topo_container_copy.py | 132 |
1 files changed, 132 insertions, 0 deletions
diff --git a/resources/tools/scripts/topo_container_copy.py b/resources/tools/scripts/topo_container_copy.py new file mode 100644 index 0000000000..d243182236 --- /dev/null +++ b/resources/tools/scripts/topo_container_copy.py @@ -0,0 +1,132 @@ +#!/usr/bin/env python + +# Copyright (c) 2017 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. + +"""This script provides copy and load of Docker container images. + As destinations are used all DUT nodes from the topology file.""" + +import sys +import argparse +from yaml import load + +from resources.libraries.python.ssh import SSH + + +def ssh_no_error(ssh, cmd, sudo=False): + """Execute a command over ssh channel, and log and exit if the command + fails. + + :param ssh: SSH() object connected to a node. + :param cmd: Command line to execute on remote node. + :param sudo: Run command with sudo privileges. + :type ssh: SSH() object + :type cmd: str + :type sudo: bool + :returns: stdout from the SSH command. + :rtype: str + :raises RuntimeError: In case of unexpected ssh command failure + """ + if sudo: + ret, stdo, stde = ssh.exec_command_sudo(cmd, timeout=60) + else: + ret, stdo, stde = ssh.exec_command(cmd, timeout=60) + + if ret != 0: + print('Command execution failed: "{}"'.format(cmd)) + print('stdout: {0}'.format(stdo)) + print('stderr: {0}'.format(stde)) + raise RuntimeError('Unexpected ssh command failure') + + return stdo + + +def ssh_ignore_error(ssh, cmd, sudo=False): + """Execute a command over ssh channel, ignore errors. + + :param ssh: SSH() object connected to a node. + :param cmd: Command line to execute on remote node. + :param sudo: Run command with sudo privileges. + :type ssh: SSH() object + :type cmd: str + :type sudo: bool + :returns: stdout from the SSH command. + :rtype: str + """ + if sudo: + ret, stdo, stde = ssh.exec_command_sudo(cmd) + else: + ret, stdo, stde = ssh.exec_command(cmd) + + if ret != 0: + print('Command execution failed: "{}"'.format(cmd)) + print('stdout: {0}'.format(stdo)) + print('stderr: {0}'.format(stde)) + + return stdo + + +def main(): + """Copy and load of Docker image.""" + parser = argparse.ArgumentParser() + parser.add_argument("-t", "--topo", required=True, + help="Topology file") + parser.add_argument("-d", "--directory", required=True, + help="Destination directory") + parser.add_argument("-i", "--images", required=False, nargs='+', + help="Images paths to copy") + parser.add_argument("-c", "--cancel", help="Cancel all", + action="store_true") + + args = parser.parse_args() + topology_file = args.topo + images = args.images + directory = args.directory + cancel_all = args.cancel + + work_file = open(topology_file) + topology = load(work_file.read())['nodes'] + + ssh = SSH() + for node in topology: + if topology[node]['type'] == "DUT": + print("###TI host: {host}".format(host=topology[node]['host'])) + ssh.connect(topology[node]) + + if cancel_all: + # Remove destination directory on DUT + cmd = "rm -r {directory}".format(directory=directory) + stdout = ssh_ignore_error(ssh, cmd) + print("###TI {stdout}".format(stdout=stdout)) + + else: + # Create installation directory on DUT + cmd = "rm -r {directory}; mkdir {directory}"\ + .format(directory=directory) + stdout = ssh_no_error(ssh, cmd) + print("###TI {stdout}".format(stdout=stdout)) + + # Copy images from local path to destination dir + for image in images: + print("###TI scp: {}".format(image)) + ssh.scp(local_path=image, remote_path=directory) + + # Load image to Docker. + cmd = "for f in {directory}/*.tar.gz; do zcat $f | "\ + "sudo docker load; done".format(directory=directory) + stdout = ssh_no_error(ssh, cmd) + print("###TI {}".format(stdout)) + + +if __name__ == "__main__": + sys.exit(main()) |