2 Distributed Cloud Emulator (dcemulator)
3 (c) 2015 by Manuel Peuster <manuel.peuster@upb.de>
10 logging
.basicConfig(level
=logging
.INFO
)
13 class ZeroRpcApiEndpoint(object):
15 Simple API endpoint that offers a zerorpc-based
16 interface. This interface will be used by the
17 default command line client.
18 It can be used as a reference to implement
19 REST interfaces providing the same semantics,
20 like e.g. OpenStack compute API.
23 def __init__(self
, listenip
, port
):
27 logging
.debug("Created API endpoint %s(%s:%d)" % (
28 self
.__class
__.__name
__, self
.ip
, self
.port
))
30 def connectDatacenter(self
, dc
):
31 self
.dcs
[dc
.label
] = dc
32 logging
.info("Connected DC(%s) to API endpoint %s(%s:%d)" % (
33 dc
.label
, self
.__class
__.__name
__, self
.ip
, self
.port
))
36 thread
= threading
.Thread(target
=self
._api
_server
_thread
, args
=())
39 logging
.debug("Started API endpoint %s(%s:%d)" % (
40 self
.__class
__.__name
__, self
.ip
, self
.port
))
42 def _api_server_thread(self
):
43 s
= zerorpc
.Server(MultiDatacenterApi(self
.dcs
))
44 s
.bind("tcp://%s:%d" % (self
.ip
, self
.port
))
48 class MultiDatacenterApi(object):
50 Just pass through the corresponding request to the
51 selected data center. Do not implement provisioning
52 logic here because will will have multiple API
53 endpoint implementations at the end.
56 def __init__(self
, dcs
):
59 def compute_action_start(self
, dc_label
, compute_name
, image
, command
, network
):
61 Start a new compute instance: A docker container
62 :param dc_label: name of the DC
63 :param compute_name: compute container name
64 :param image: image name
65 :param command: command to execute
67 :return: networks list({"ip": "10.0.0.254/8"}, {"ip": "11.0.0.254/24"})
69 # TODO what to return UUID / given name / internal name ?
70 logging
.debug("RPC CALL: compute start")
72 c
= self
.dcs
.get(dc_label
).startCompute(
73 compute_name
, image
=image
, command
=command
, network
=network
)
75 except Exception as ex
:
76 logging
.exception("RPC error.")
79 def compute_action_stop(self
, dc_label
, compute_name
):
80 logging
.debug("RPC CALL: compute stop")
82 return self
.dcs
.get(dc_label
).stopCompute(compute_name
)
83 except Exception as ex
:
84 logging
.exception("RPC error.")
87 def compute_list(self
, dc_label
):
88 logging
.debug("RPC CALL: compute list")
91 # return list with all compute nodes in all DCs
93 for dc
in self
.dcs
.itervalues():
94 all_containers
+= dc
.listCompute()
95 return [(c
.name
, c
.getStatus())
96 for c
in all_containers
]
98 # return list of compute nodes for specified DC
99 return [(c
.name
, c
.getStatus())
100 for c
in self
.dcs
.get(dc_label
).listCompute()]
101 except Exception as ex
:
102 logging
.exception("RPC error.")
105 def compute_status(self
, dc_label
, compute_name
):
106 logging
.debug("RPC CALL: compute status")
109 dc_label
).containers
.get(compute_name
).getStatus()
110 except Exception as ex
:
111 logging
.exception("RPC error.")
114 def datacenter_list(self
):
115 logging
.debug("RPC CALL: datacenter list")
117 return [d
.getStatus() for d
in self
.dcs
.itervalues()]
118 except Exception as ex
:
119 logging
.exception("RPC error.")
122 def datacenter_status(self
, dc_label
):
123 logging
.debug("RPC CALL: datacenter status")
125 return self
.dcs
.get(dc_label
).getStatus()
126 except Exception as ex
:
127 logging
.exception("RPC error.")