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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
import pprint
import subprocess
import time
import argparse
import logging
import novaclient.v2.client as novaclient
#import novaclient.v1_1.client as novaclient
import cinderclient.v1.client as cinderclient
pp = pprint.PrettyPrinter(indent=4)
EXIT_CODE = -1
#tODO: this parameters should be taken from a conf file
PING_TIMEOUT = 200
NAME_VM_1 = "opnfv-vping-1"
NAME_VM_2 = "opnfv-vping-2"
GLANCE_IMAGE_NAME = "trusty-server-cloudimg-amd64-disk1.img"
NEUTRON_NET_NAME = "test"
FLAVOR = "m1.small"
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)
cinder = cinderclient.Client(**creds)
"""
# print images and server resources
# print nova_images
print_title("images list")
pMsg(nova.images.list())
print_title("servers list")
pMsg(nova.servers.list())
"""
images=nova.images.list()
image_found = False
for image in images:
if image.name == GLANCE_IMAGE_NAME:
logger.info("Glance image found '%s'" %image.name)
image_found = True
if not image_found:
logger.error("ERROR: Glance image %s not found." % GLANCE_IMAGE_NAME)
logger.info("Available images are: ")
pMsg(nova.images.list())
exit(-1)
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
m = NAME_VM_1
f = nova.flavors.find(name = FLAVOR)
i = nova.images.find(name = GLANCE_IMAGE_NAME)
n = nova.networks.find(label = NEUTRON_NET_NAME)
u = "#cloud-config\npassword: opnfv\nchpasswd: { expire: False }\nssh_pwauth: True"
#k = "demo-key"
# create VM
logger.info("Creating instance '%s'..." %m)
logger.debug("Configuration:\n name=%s \n flavor=%s \n image=%s \n network=%s \n userdata= \n%s" %(m,f,i,n,u))
vm1 = nova.servers.create(
name = m,
flavor = f,
image = i,
nics = [{"net-id": n.id}],
#key_name = k,
userdata = u,
)
#pMsg(vm1)
#wait until VM status is active
waitVmActive(nova,vm1)
#retrieve IP of first VM
logger.debug("Fetching IP...")
server = get_server(creds, m)
#pMsg(server.networks)
# 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_NET_NAME)[0]
logger.debug("Instance '%s' got %s" %(m,test_ip))
test_cmd = '/tmp/vping.sh %s'%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
m = NAME_VM_2
f = nova.flavors.find(name = FLAVOR)
i = nova.images.find(name = GLANCE_IMAGE_NAME)
n = nova.networks.find(label = NEUTRON_NET_NAME)
# use base 64 format becaus bad surprises with sh script with cloud-init but script is just pinging
#k = "demo-key"
u = "#cloud-config\npassword: opnfv\nchpasswd: { expire: False }\nssh_pwauth: True\nwrite_files:\n- encoding: b64\n path: /tmp/vping.sh\n permissions: '0777'\n owner: root:root\n content: IyEvYmluL2Jhc2gKCndoaWxlIHRydWU7IGRvCiBwaW5nIC1jIDEgJDEgMj4mMSA+L2Rldi9udWxsCiBSRVM9JD8KIGlmIFsgIlokUkVTIiA9ICJaMCIgXSA7IHRoZW4KICBlY2hvICJ2UGluZyBPSyIKICBzbGVlcCAxMAogIHN1ZG8gc2h1dGRvd24gLWggbm93CiAgYnJlYWsKIGVsc2UKICBlY2hvICJ2UGluZyBLTyIKIGZpCiBzbGVlcCAxCmRvbmUK\nruncmd:\n - [ sh, -c, %s]"%test_cmd
# create VM
logger.info("Creating instance '%s'..." %m)
logger.debug("Configuration:\n name=%s \n flavor=%s \n image=%s \n network=%s \n userdata= \n%s" %(m,f,i,n,u))
vm2 = nova.servers.create(
name = m,
flavor = f,
image = i,
nics = [{"net-id": n.id}],
#key_name = k,
userdata = u,
#security_groups = s,
#config_drive = v.id
)
# The injected script will shutdown the VM2 when the ping works
# The console-log method is more consistent but doesn't work yet
waitVmActive(nova,vm2)
logger.info("Waiting for ping, timeout is %d sec..." % PING_TIMEOUT)
sec = 0
while True:
status = get_status(nova, vm2)
#print status
if status == "SHUTOFF" :
EXIT_CODE = 0
logger.info("vPing SUCCESSFUL after %d sec" % sec)
break
if sec == PING_TIMEOUT:
logger.info("Timeout. vPing UNSUCCESSFUL.")
break
time.sleep(1)
sec+=1
"""
# I leave this here until we fix the console-log output
sec = 0
console_log = vm2.get_console_output()
while not ("vPing" in console_log):
time.sleep(1)
console_log = vm2.get_console_output()
print "--"+console_log
# report if the test is failed
if "vPing" in console_log:
pMsg("vPing is OK")
break
else:
pMsg("no vPing detected....")
sec+=1
if sec == PING_TIMEOUT:
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)
logger.debug("EXIT_CODE=%s" % EXIT_CODE)
exit(EXIT_CODE)
if __name__ == '__main__':
main()
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