+++ /dev/null
-#!/usr/bin/python
-
-# Copyright (c) 2016 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.
-
-__author__ = 'ckoester@cisco.com'
-
-import sys
-import requests
-import re
-import os
-import argparse
-import tempfile
-import shutil
-import time
-import paramiko
-import netifaces
-
-# Commands needed to install VPP and Honeycomb from repository
-inst_cmds = [
- 'sudo rm /etc/apt/sources.list.d/99fd.io.list || true',
- 'echo "deb [trusted=yes] https://nexus.fd.io/content/repositories/'
- 'fd.io.master.ubuntu.trusty.main/ ./" | '
- 'sudo tee -a /etc/apt/sources.list.d/99fd.io.list',
- 'sudo apt-get -y update',
- 'sudo apt-get -y install vpp vpp-dbg vpp-dev vpp-dpdk-dev vpp-dpdk-dkms '
- 'vpp-lib honeycomb'
-]
-
-#
-# Helper function to indent a text string
-#
-def indent(lines, amount, fillchar=' '):
- padding = amount * fillchar
- return padding + ('\n'+padding).join(lines.split('\n'))
-
-def perform_remote_command(ssh_client, cmd, verbosity):
- """This function performs a command on the specified remote host using given
- ssh client. Depending on the level of verbosity, it prints stdout and
- stderr.
-
- :param ssh_client: SSH client used for communication.
- :param cmd: Command to be performed on th rremote client.
- :param verbosity: Verbosity level.
- :type ssh_client: paramiko.SSHClient
- :type cmd: str
- :type verbosity: int
- """
-
- _, stdout, stderr = ssh_client.exec_command(cmd)
- c_stdout = stdout.read()
- c_stderr = stderr.read()
- if verbosity >= 2:
- print("DEBUG: Command output was:\n{0}".format(c_stdout))
- print("DEBUG: Command stderr was:\n{0}".format(c_stderr))
-
-#
-# Main function.
-# FIXME: Right now, this is really coded like a shell script, as one big
-# function executed in sequence. This should be broken down into multiple
-# functions.
-#
-def main():
- #
- # Get our default interface IP address. This will become the default
- # value for the "NFS Server IP" option.
- #
- gws = netifaces.gateways()
- addrs = netifaces.ifaddresses(gws['default'][netifaces.AF_INET][1])
- default_addr = addrs[netifaces.AF_INET][0]['addr']
-
- #
- # Verify CLI parameters and try to download our VPP image into a temporary
- # file first
- #
- parser = argparse.ArgumentParser()
- parser.add_argument("topology", help="the base topology to be started")
- parser.add_argument("-k", "--keep", help="Keep (do not delete) the " +
- "simulation in case of error", action='store_true')
- parser.add_argument("-v", "--verbosity", action="count", default=0)
- parser.add_argument("-nip", "--nfs-server-ip", help="NFS server (our) IP " +
- "default is derived from routing table: " +
- "{}".format(default_addr), default=default_addr)
- parser.add_argument("-ns", "--nfs-scratch-directory",
- help="Server location for NFS scratch diretory",
- default="/nfs/scratch")
- parser.add_argument("-nc", "--nfs-common-directory",
- help="Server location for NFS common (read-only) " +
- "directory", default="/nfs/common")
- parser.add_argument("-wc", "--wait-count",
- help="number of intervals to wait for simulation to " +
- "be ready", type=int, default=24)
- parser.add_argument("-wt", "--wait-time",
- help="length of a single interval to wait for " +
- "simulation to be ready", type=int, default=5)
- parser.add_argument("-vip", "--virl-ip",
- help="VIRL IP and Port (e.g. 127.0.0.1:19399)",
- default="127.0.0.1:19399")
- parser.add_argument("-u", "--username", help="VIRL username",
- default="tb4-virl")
- parser.add_argument("-p", "--password", help="VIRL password",
- default="Cisco1234")
- parser.add_argument("-su", "--ssh-user", help="SSH username",
- default="cisco")
- parser.add_argument("-spr", "--ssh-privkey", help="SSH private keyfile",
- default="/home/jenkins-in/.ssh/id_rsa_virl")
- parser.add_argument("-spu", "--ssh-pubkey", help="SSH public keyfile",
- default="/home/jenkins-in/.ssh/id_rsa_virl.pub")
- parser.add_argument("-r", "--release", help="VM disk image/release " +
- "(ex. \"csit-ubuntu-14.04.4_2016-05-25_1.0\")",
- default="csit-ubuntu-14.04.4_2016-05-25_1.0")
- parser.add_argument("--topology-directory", help="Topology directory",
- default="/home/jenkins-in/testcase-infra/topologies")
-
- args = parser.parse_args()
-
- #
- # Check if topology and template exist
- #
- if args.verbosity >= 2:
- print "DEBUG: Running with topology {}".format(args.topology)
-
- topology_virl_filename = os.path.join(args.topology_directory,
- args.topology + ".virl")
- topology_yaml_filename = os.path.join(args.topology_directory,
- args.topology + ".yaml")
-
- if not os.path.isfile(topology_virl_filename):
- print "ERROR: Topology VIRL file {} does not exist".\
- format(topology_virl_filename)
- sys.exit(1)
- if not os.path.isfile(topology_yaml_filename):
- print "ERROR: Topology YAML file {} does not exist".\
- format(topology_yaml_filename)
- sys.exit(1)
-
- #
- # Start VIRL topology
- #
- if args.verbosity >= 1:
- print "DEBUG: Starting VIRL topology"
- temp_handle, temp_topology = tempfile.mkstemp()
- with open(args.ssh_pubkey, 'r') as pubkey_file:
- pub_key = pubkey_file.read().replace('\n', '')
- with open(temp_topology, 'w') as new_file, \
- open(topology_virl_filename, 'r') as old_file:
- for line in old_file:
- line = line.replace(" - VIRL-USER-SSH-PUBLIC-KEY", " - "+pub_key)
- line = line.replace("$$NFS_SERVER_SCRATCH$$", \
- args.nfs_server_ip+":"+args.nfs_scratch_directory)
- line = line.replace("$$NFS_SERVER_COMMON$$", \
- args.nfs_server_ip+":"+args.nfs_common_directory)
- line = line.replace("$$VM_IMAGE$$", "server-"+args.release)
- new_file.write(line)
- os.close(temp_handle)
-
- try:
- new_file = open(temp_topology, 'rb')
- headers = {'Content-Type': 'text/xml'}
- req = requests.post('http://' + args.virl_ip + '/simengine/rest/launch',
- headers=headers,
- auth=(args.username, args.password), data=new_file)
- if args.verbosity >= 2:
- print "DEBUG: - Response Code {}".format(req.status_code)
- new_file.close()
-
- except:
- print "ERROR: Launching VIRL simulation - received invalid response"
- print req
- os.remove(temp_topology)
- sys.exit(1)
-
- if req.status_code != 200:
- print "ERROR: Launching VIRL simulation - received status other " + \
- "than 200 HTTP OK"
- print "Status was: {} \n".format(req.status_code)
- print "Response content was: "
- print req.content
- os.remove(temp_topology)
- sys.exit(1)
-
- # If we got here, we had a good response. The response content is the
- # session ID.
- session_id = req.content
-
- #
- # Create simulation scratch directory. Move topology file into that
- # directory. Copy or move debian packages into that directory.
- #
- scratch_directory = os.path.join(args.nfs_scratch_directory, session_id)
- os.mkdir(scratch_directory)
- shutil.move(temp_topology, os.path.join(scratch_directory,
- "virl_topology.virl"))
- os.mkdir(os.path.join(scratch_directory, "vpp"))
-
- #
- # Wait for simulation to become active
- #
- if args.verbosity >= 1:
- print "DEBUG: Waiting for simulation to become active"
-
- sim_is_started = False
- nodelist = []
-
- count = args.wait_count
- while (count > 0) and not sim_is_started:
- time.sleep(args.wait_time)
- count -= 1
-
- req = requests.get('http://' + args.virl_ip + '/simengine/rest/nodes/' +
- session_id, auth=(args.username, args.password))
- data = req.json()
-
- active = 0
- total = 0
-
- # Flush the node list every time, keep the last one
- nodelist = []
-
- # Hosts are the keys of the inner dictionary
- for key in data[session_id].keys():
- if data[session_id][key]['management-proxy'] == "self":
- continue
- nodelist.append(key)
- total += 1
- if data[session_id][key]['state'] == "ACTIVE":
- active += 1
- if args.verbosity >= 2:
- print "DEBUG: - Attempt {} out of {}, total {} hosts, {} active".\
- format(args.wait_count-count, args.wait_count, total, active)
- if active == total:
- sim_is_started = True
-
- if not sim_is_started:
- print "ERROR: Simulation started OK but devices never changed to " + \
- "ACTIVE state"
- print "Last VIRL response:"
- print data
- if not args.keep:
- shutil.rmtree(scratch_directory)
- req = requests.get('http://' + args.virl_ip +
- '/simengine/rest/stop/' + session_id,
- auth=(args.username, args.password))
-
- if args.verbosity >= 2:
- print "DEBUG: Nodes: " + ", ".join(nodelist)
-
- #
- # Fetch simulation's IPs and create files
- # (ansible hosts file, topology YAML file)
- #
- req = requests.get('http://' + args.virl_ip +
- '/simengine/rest/interfaces/' + session_id +
- '?fetch-state=1', auth=(args.username, args.password))
- data = req.json()
-
- # Populate node addresses
- nodeaddrs = {}
- topology = {}
- for key in nodelist:
- nodetype = re.split('[0-9]', key)[0]
- if not nodetype in nodeaddrs:
- nodeaddrs[nodetype] = {}
- nodeaddrs[nodetype][key] = re.split('\\/', \
- data[session_id][key]['management']['ip-address'])[0]
- if args.verbosity >= 2:
- print "DEBUG: Node {} is of type {} and has management IP {}".\
- format(key, nodetype, nodeaddrs[nodetype][key])
-
- topology[key] = {}
- for key2 in data[session_id][key]:
- topology[key]["nic-"+key2] = data[session_id][key][key2]
- if 'ip-address' in topology[key]["nic-"+key2]:
- if topology[key]["nic-"+key2]['ip-address'] is not None:
- topology[key]["nic-"+key2]['ip-addr'] = re.split('\\/', \
- topology[key]["nic-"+key2]['ip-address'])[0]
-
- # Write ansible file
- ansiblehosts = open(os.path.join(scratch_directory, 'ansible-hosts'), 'w')
- for key1 in nodeaddrs:
- ansiblehosts.write("[{}]\n".format(key1))
- for key2 in nodeaddrs[key1]:
- ansiblehosts.write("{} hostname={}\n".format(nodeaddrs[key1][key2],
- key2))
- ansiblehosts.close()
-
- # Process topology YAML template
- with open(args.ssh_privkey, 'r') as privkey_file:
- priv_key = indent(privkey_file.read(), 6)
-
- with open(os.path.join(scratch_directory, "topology.yaml"), 'w') as \
- new_file, open(topology_yaml_filename, 'r') as old_file:
- for line in old_file:
- new_file.write(line.format(priv_key=priv_key, topology=topology))
-
- #
- # Wait for hosts to become reachable over SSH
- #
- if args.verbosity >= 1:
- print "DEBUG: Waiting for hosts to become reachable using SSH"
-
- missing = -1
- count = args.wait_count
- while (count > 0) and missing != 0:
- time.sleep(args.wait_time)
- count -= 1
-
- missing = 0
- for key in nodelist:
- if not os.path.exists(os.path.join(scratch_directory, key)):
- missing += 1
- if args.verbosity >= 2:
- print "DEBUG: - Attempt {} out of {}, waiting for {} hosts".\
- format(args.wait_count-count, args.wait_count, missing)
-
- if missing != 0:
- print "ERROR: Simulation started OK but {} hosts ".format(missing) + \
- "never mounted their NFS directory"
- if not args.keep:
- shutil.rmtree(scratch_directory)
- req = requests.get('http://' + args.virl_ip +
- '/simengine/rest/stop/' + session_id,
- auth=(args.username, args.password))
-
- #
- # Upgrade VPP
- #
- if args.verbosity >= 1:
- print("DEBUG: Uprading VPP")
-
- for key1 in nodeaddrs:
- if not key1 == 'tg':
- for key2 in nodeaddrs[key1]:
- ipaddr = nodeaddrs[key1][key2]
- if args.verbosity >= 2:
- print("DEBUG: Upgrading VPP on node {}".format(ipaddr))
- paramiko.util.log_to_file(os.path.join(scratch_directory,
- "ssh.log"))
- client = paramiko.SSHClient()
- client.load_system_host_keys()
- client.load_host_keys("/dev/null")
- client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
- client.connect(ipaddr, username=args.ssh_user,
- key_filename=args.ssh_privkey)
- for cmd in inst_cmds:
- perform_remote_command(client, cmd, args.verbosity)
-
- #
- # Write a file with timestamp to scratch directory. We can use this to track
- # how long a simulation has been running.
- #
- with open(os.path.join(scratch_directory, 'start_time'), 'a') as \
- timestampfile:
- timestampfile.write('{}\n'.format(int(time.time())))
-
- #
- # Declare victory
- #
- if args.verbosity >= 1:
- print "SESSION ID: {}".format(session_id)
-
- print "{}".format(session_id)
-
-if __name__ == "__main__":
- sys.exit(main())
Code Review / csit.git / commitdiff