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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 novaclient.v1_1.client as novaclient
import cinderclient.v1.client as cinderclient
pp = pprint.PrettyPrinter(indent=4)
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.
"""
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", "test"), # 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", "invisible_to_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
pMsg(vm.status)
while vm.status == "BUILD":
time.sleep(1)
vm = nova.servers.get(vm.id)
pMsg(vm.status)
def main():
creds = get_credentials("nova")
nova = novaclient.Client(**creds)
cinder = cinderclient.Client(**creds)
#print images and server resources
print_title("images list")
pMsg(nova.images.list())
print_title("servers list")
pMsg(nova.servers.list())
# boot VM 1
# basic boot
# tune (e.g. flavor, images, network) to your specific openstack configuration here
f = nova.flavors.find(name = 'm1.small')
i = nova.images.find(name = 'Ubuntu 14.04 (amd64)')
n = nova.networks.find(label = 'private')
u = "#cloud-config\npassword: opnfv\nchpasswd: { expire: False }\nssh_pwauth: True"
#k = "demo-key"
# create VM
vm1 = nova.servers.create(
name = "opnfv-vping-1",
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
server = get_server(creds, "opnfv-vping-1")
pMsg(server.networks)
# theoretically there is only one IP address so we take the first element of the table
test_ip = server.networks.get('private')[0]
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
f = nova.flavors.find(name = 'm1.small')
i = nova.images.find(name = 'Ubuntu 14.04 (amd64)')
n = nova.networks.find(label = 'private')
# use base 64 format becaus bad surprises with sh script with cloud-init but script is just pinging
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: IyEvYmluL2Jhc2gKCgoKcGluZyAtYyAxICQxIDI+JjEgPi9kZXYvbnVsbApSRVM9JD8KaWYgWyAiWiRSRVMiID0gIlowIiBdIDsgdGhlbgogIGVjaG8gInZQaW5nIE9LIgplbHNlCiAgZWNobyAidlBpbmcgS08iCmZpCg==\nruncmd:\n - [ sh, -c, %s]"%test_cmd
#k = "demo-key"
# create VM
vm2 = nova.servers.create(
name = "opnfv-vping-2",
flavor = f,
image = i,
nics = [{"net-id": n.id}],
#key_name = k,
userdata = u,
#security_groups = s,
#config_drive = v.id
)
pMsg(vm2)
waitVmActive(nova,vm2)
console_log = vm2.get_console_output()
while not ("vPing" in console_log):
time.sleep(1)
console_log = vm2.get_console_output()
# report if the test is failed
if "vPing" in console_log:
pMsg("vPing is OK")
else:
pMsg("no vPing detected....")
# delete both VMs
nova.servers.delete(vm1)
nova.servers.delete(vm2)
pMsg ("VM instances have been terminated!")
if __name__ == '__main__':
main()
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