HowTo/GenerateRSpecUsingGENILIB: examples.py

# -*- coding: utf-8 -*-

'''
This code is to test geni-lib

by Xuan Liu

July 7, 2014
'''

import xliu_config

import geni.aggregate.instageni as ig
import geni.aggregate.exogeni as eg
import geni.rspec.pg as pg

# User context information
CONTEXT = xliu_config.buildContext()


def get_am_sites(am_type):
    """
    get a list of sites of a specific aggregate type
    ig: instageni
    eg: exogeni
    """
    am_list = []
    if am_type == 'ig':
        for idx, site in enumerate(ig.aggregates()):
            #print idx, site
            am_list.append(site)
    elif am_type == 'eg':
        for idx, site in enumerate(eg.aggregates()):
            am_list.append(site)
    return am_list
        

def get_res(context, ig_site):
    '''Get resource of a ig site, and print to a file '''
    try:
        ad = ig_site.listresources(context)
        f = open("%s-ad.xml" % (ig_site.name), "w+")
        f.write(ad.text)
        f.close()
        print "[%s] Done" % (ig_site.name)
    except:
        print "[%s] OFFLINE" % (ig_site.name)

def two_nodes_rspec(context):
    ''' Create an RSpec for a simple two-node link'''
    # provide the slicename
    slicename = 'xuan-genilib'

    # delete previous sliver
    #ig.UtahDDC.deletesliver(context, "xuan-genilib")    
    
    # create RSpec object
    rspec = pg.Request()
    
    # create node1
    vm1 = pg.XenVM("node1")
    vm1_iface1 = vm1.addInterface("if0")
    vm1_iface1.component_id = "eth1"
    vm1.disk_image = 'https://www.emulab.net/image_metadata.php?uuid=bea6f9b2-f59b-11e3-8053-001143e453fe'
    rspec.addResource(vm1)
    
    # create node2
    vm2 = pg.XenVM("node2")
    vm2_iface1 = vm2.addInterface("if0")
    vm2_iface1.component_id = "eth1"
    vm2.disk_image = 'https://www.emulab.net/image_metadata.php?uuid=bea6f9b2-f59b-11e3-8053-001143e453fe'
    rspec.addResource(vm2)
    
    # create link node2 <--> node1 
    link = pg.Link()
    link.addInterface(vm1_iface1)
    link.addInterface(vm2_iface1)
    rspec.addResource(link)
    
    # create RSpec xml file
    rspec.write("test.xml")
    
    # create sliver
    manifest = ig.UtahDDC.createsliver(context, slicename, rspec)
    print manifest.text
    

def deletesliver(context, am, slicename):
    '''Delete slivers from a AM in a Slice'''
    am.deletesliver(context, slicename)
    
def custom_image_rspec(context):
    '''Create RSpec with custom disk image'''
    slicename = 'xuan-genilib'
    am = ig.Clemson
    
    rspec = pg.Request()
    vm1 = pg.XenVM("node1")
    vm1_iface1 = vm1.addInterface("if0")
    vm1_iface1.component_id = "eth1"
    vm1_iface1.addAddress(pg.IPv4Address('192.168.1.1', '255.255.255.0'))
    vm1.disk_image = 'https://www.emulab.net/image_metadata.php?uuid=bea6f9b2-f59b-11e3-8053-001143e453fe'
    vm1.addService(pg.Install(url="http://geni-myvini.umkc.gpeni.net/resources/experiments/xorp_autostart.tar.gz", path="/local"))
    vm1.addService(pg.Install(url="http://geni-myvini.umkc.gpeni.net/resources/experiments/xorp_run.tar.gz", path="/local"))
    vm1.addService(pg.Execute(shell="bash", command="/bin/bash /local/xorp_autostart/start-xorp.sh"))
    rspec.addResource(vm1)
    
    # create node2
    vm2 = pg.XenVM("node2")
    vm2_iface1 = vm2.addInterface("if0")
    vm2_iface1.component_id = "eth1"
    vm2_iface1.addAddress(pg.IPv4Address('192.168.1.2', '255.255.255.0'))
    vm2.disk_image = 'https://www.emulab.net/image_metadata.php?uuid=bea6f9b2-f59b-11e3-8053-001143e453fe'
    vm2.addService(pg.Install(url="http://geni-myvini.umkc.gpeni.net/resources/experiments/xorp_autostart.tar.gz", path="/local"))
    vm2.addService(pg.Install(url="http://geni-myvini.umkc.gpeni.net/resources/experiments/xorp_run.tar.gz", path="/local"))
    vm2.addService(pg.Execute(shell="bash", command="/bin/bash /local/xorp_autostart/start-xorp.sh"))    
    rspec.addResource(vm2)

    # create link node2 <--> node1 
    link = pg.LAN('lan0')
    link.addInterface(vm1_iface1)
    link.addInterface(vm2_iface1)
    rspec.addResource(link)

    rspec.write("test.xml")    
    
    # create slivers
    manifest = am.createsliver(context, slicename, rspec)
    
    print manifest.text