8 from operator import itemgetter, attrgetter
10 REST_API="http://alpha.opencloud.us:8000/plstackapi/"
12 NODES_API = REST_API + "nodes/"
13 SLICES_API = REST_API + "slices/"
14 SLIVERS_API = REST_API + "slivers/"
16 opencloud_auth=("demo@onlab.us", "demo")
18 def get_slice_id(slice_name):
19 r = requests.get(SLICES_API + "?name=%s" % slice_name, auth=opencloud_auth)
20 return r.json()[0]["id"]
22 def get_node_id(host_name):
23 r = requests.get(NODES_API + "?name=%s" % host_name, auth=opencloud_auth)
24 return r.json()[0]["id"]
26 def get_slivers(slice_id=None, node_id=None):
29 queries.append("slice=%s" % str(slice_id))
31 queries.append("node=%s" % str(node_id))
34 query_string = "?" + "&".join(queries)
38 r = requests.get(SLIVERS_API + query_string, auth=opencloud_auth)
45 print >> sys.stderr, "syntax: get_instance_name.py <username>, <password>, <hostname> <slicename>"
48 username = sys.argv[1]
49 password = sys.argv[2]
50 hostname = sys.argv[3]
51 slice_name = sys.argv[4]
53 opencloud_auth=(username, password)
55 slice_id = get_slice_id(slice_name)
56 node_id = get_node_id(hostname)
57 slivers = get_slivers(slice_id, node_id)
59 # get (instance_name, ip) pairs for instances with names and ips
61 slivers = [x for x in slivers if x["instance_name"] and x["ip"]]
62 slivers = sorted(slivers, key = lambda sliver: sliver["instance_name"])
64 # return the last one in the list (i.e. the newest one)
66 print slivers[-1]["ip"]
68 if __name__ == "__main__":