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#!/usr/bin/python
#
# Copyright (c) 2015 All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# This script boots the VM1 and allocates IP address from Nova
# Later, the VM2 boots then execute cloud-init to ping VM1.
# After successful ping, both the VMs are deleted.
#
# Note: this is script works only with Ubuntu image, not with Cirros image
#
import os, time, subprocess, logging, argparse, yaml
import pprint
import novaclient.v2.client as novaclient
pp = pprint.PrettyPrinter(indent=4)
EXIT_CODE = -1
HOME = os.environ['HOME']+"/"
with open(HOME+'.functest/functest.yaml') as f:
functest_yaml = yaml.safe_load(f)
f.close()
PING_TIMEOUT = functest_yaml.get("vping").get("ping_timeout")
NAME_VM_1 = functest_yaml.get("vping").get("vm_name_1")
NAME_VM_2 = functest_yaml.get("vping").get("vm_name_2")
GLANCE_IMAGE_NAME = functest_yaml.get("general").get("openstack").get("image_name")
NEUTRON_PRIVATE_NET_NAME = functest_yaml.get("general").get("openstack").get("neutron_private_net_name")
FLAVOR = functest_yaml.get("vping").get("vm_flavor")
parser = argparse.ArgumentParser()
parser.add_argument("-d", "--debug", help="Debug mode", action="store_true")
args = parser.parse_args()
""" logging configuration """
logger = logging.getLogger('vPing')
logger.setLevel(logging.DEBUG)
ch = logging.StreamHandler()
if args.debug:
ch.setLevel(logging.DEBUG)
else:
ch.setLevel(logging.INFO)
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
ch.setFormatter(formatter)
logger.addHandler(ch)
def pMsg(value):
"""pretty printing"""
pp.pprint(value)
def print_title(title):
"""Print titles"""
print "\n"+"#"*40+"\n# "+title+"\n"+"#"*40+"\n"
def get_credentials(service):
"""Returns a creds dictionary filled with the following keys:
* username
* password/api_key (depending on the service)
* tenant_name/project_id (depending on the service)
* auth_url
:param service: a string indicating the name of the service
requesting the credentials.
"""
#TODO: get credentials from the openrc file
creds = {}
# Unfortunately, each of the OpenStack client will request slightly
# different entries in their credentials dict.
if service.lower() in ("nova", "cinder"):
password = "api_key"
tenant = "project_id"
else:
password = "password"
tenant = "tenant_name"
# The most common way to pass these info to the script is to do it through
# environment variables.
creds.update({
"username": os.environ.get('OS_USERNAME', "admin"), # add your cloud username details
password: os.environ.get("OS_PASSWORD", 'admin'), # add password
"auth_url": os.environ.get("OS_AUTH_URL","http://192.168.20.71:5000/v2.0"), # Auth URL
tenant: os.environ.get("OS_TENANT_NAME", "admin"),
})
return creds
def get_server(creds, servername):
nova = novaclient.Client(**creds)
return nova.servers.find(name=servername)
def waitVmActive(nova,vm):
# sleep and wait for VM status change
while get_status(nova,vm) != "ACTIVE":
time.sleep(3)
logger.debug("Status: %s" % vm.status)
logger.debug("Status: %s" % vm.status)
def get_status(nova,vm):
vm = nova.servers.get(vm.id)
return vm.status
def main():
creds = get_credentials("nova")
nova = novaclient.Client(**creds)
image = None
network = None
flavor = None
# Check if the given image exists
try:
image = nova.images.find(name = GLANCE_IMAGE_NAME)
logger.info("Glance image found '%s'" % GLANCE_IMAGE_NAME)
except:
logger.error("ERROR: Glance image '%s' not found." % GLANCE_IMAGE_NAME)
logger.info("Available images are: ")
pMsg(nova.images.list())
exit(-1)
# Check if the given neutron network exists
try:
network = nova.networks.find(label = NEUTRON_PRIVATE_NET_NAME)
logger.info("Network found '%s'" % NEUTRON_PRIVATE_NET_NAME)
except:
logger.error("Neutron network '%s' not found." % NEUTRON_PRIVATE_NET_NAME)
logger.info("Available networks are: ")
pMsg(nova.networks.list())
exit(-1)
# Check if the given flavor exists
try:
flavor = nova.flavors.find(name = FLAVOR)
logger.info("Flavor found '%s'" % FLAVOR)
except:
logger.error("Flavor '%s' not found." % FLAVOR)
logger.info("Available flavors are: ")
pMsg(nova.flavor.list())
exit(-1)
# Deleting instances if they exist
servers=nova.servers.list()
for server in servers:
if server.name == NAME_VM_1 or server.name == NAME_VM_2:
logger.info("Instance %s found. Deleting..." %server.name)
server.delete()
# boot VM 1
# basic boot
# tune (e.g. flavor, images, network) to your specific openstack configuration here
# create VM
logger.info("Creating instance '%s'..." % NAME_VM_1)
logger.debug("Configuration:\n name=%s \n flavor=%s \n image=%s \n network=%s \n" %(NAME_VM_1,flavor,image,network))
vm1 = nova.servers.create(
name = NAME_VM_1,
flavor = flavor,
image = image,
nics = [{"net-id": network.id}]
)
#wait until VM status is active
waitVmActive(nova,vm1)
#retrieve IP of first VM
logger.debug("Fetching IP...")
server = get_server(creds, NAME_VM_1)
# theoretically there is only one IP address so we take the first element of the table
# Dangerous! To be improved!
test_ip = server.networks.get(NEUTRON_PRIVATE_NET_NAME)[0]
logger.debug("Instance '%s' got %s" %(NAME_VM_1,test_ip))
# boot VM 2
# we will boot then execute a ping script with cloud-init
# the long chain corresponds to the ping procedure converted with base 64
# tune (e.g. flavor, images, network) to your specific openstack configuration here
u = "#!/bin/sh\n\nwhile true; do\n ping -c 1 %s 2>&1 >/dev/null\n RES=$?\n if [ \"Z$RES\" = \"Z0\" ] ; then\n echo 'vPing OK'\n break\n else\n echo 'vPing KO'\n fi\n sleep 1\ndone\n"%test_ip
# create VM
logger.info("Creating instance '%s'..." % NAME_VM_2)
logger.debug("Configuration:\n name=%s \n flavor=%s \n image=%s \n network=%s \n userdata= \n%s" %(NAME_VM_2,flavor,image,network,u))
vm2 = nova.servers.create(
name = NAME_VM_2,
flavor = flavor,
image = image,
nics = [{"net-id": network.id}],
userdata = u,
)
waitVmActive(nova,vm2)
sec = 0
console_log = vm2.get_console_output()
while True:
time.sleep(1)
console_log = vm2.get_console_output()
#print "--"+console_log
# report if the test is failed
if "vPing OK" in console_log:
logger.info("vPing is OK")
EXIT_CODE = 0
break
else:
logger.info("No vPing detected...")
sec+=1
if sec == PING_TIMEOUT:
logger.info("Timeout reached.")
break
# delete both VMs
logger.debug("Deleting Instances...")
nova.servers.delete(vm1)
logger.debug("Instance %s terminated." % NAME_VM_1)
nova.servers.delete(vm2)
logger.debug("Instance %s terminated." % NAME_VM_2)
if EXIT_CODE == 0:
logger.info("vPing OK")
else:
logger.error("vPing FAILED")
exit(EXIT_CODE)
if __name__ == '__main__':
main()
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