| hadik3r | 237d3f5 | 2016-06-27 17:57:49 +0200 | [diff] [blame] | 1 | import logging |
| 2 | import threading |
| 3 | from flask import Flask, request |
| 4 | from flask_restful import Resource,Api |
| 5 | import json |
| 6 | |
| 7 | |
| 8 | |
| 9 | logging.basicConfig(level=logging.INFO) |
| 10 | |
| 11 | |
| 12 | dcs = {} |
| 13 | |
| 14 | class RestApiEndpoint(object): |
| 15 | |
| 16 | """ |
| 17 | Simple API endpoint that offers a REST |
| 18 | interface. This interface will be used by the |
| 19 | default command line client. |
| 20 | """ |
| 21 | global dcs |
| 22 | |
| 23 | def __init__(self, listenip, port): |
| 24 | self.ip = listenip |
| 25 | self.port = port |
| 26 | |
| 27 | # setup Flask |
| 28 | self.app = Flask(__name__) |
| 29 | self.api = Api(self.app) |
| 30 | |
| 31 | # setup endpoints |
| 32 | self.api.add_resource(ComputeList, "/restapi/compute/<dc_label>") |
| 33 | self.api.add_resource(ComputeStart, "/restapi/compute/<dc_label>/<compute_name>/start") |
| 34 | self.api.add_resource(ComputeStop, "/restapi/compute/<dc_label>/<compute_name>/stop") |
| 35 | self.api.add_resource(ComputeStatus, "/restapi/compute/<dc_label>/<compute_name>") |
| 36 | self.api.add_resource(DatacenterList, "/restapi/datacenter") |
| 37 | self.api.add_resource(DatacenterStatus, "/restapi/datacenter/<dc_label>") |
| 38 | |
| 39 | logging.debug("Created API endpoint %s(%s:%d)" % (self.__class__.__name__, self.ip, self.port)) |
| 40 | |
| 41 | |
| 42 | def connectDatacenter(self, dc): |
| 43 | dcs[dc.label] = dc |
| 44 | logging.info("Connected DC(%s) to API endpoint %s(%s:%d)" % (dc.label, self.__class__.__name__, self.ip, self.port)) |
| 45 | |
| 46 | def start(self): |
| 47 | thread = threading.Thread(target= self._start_flask, args=()) |
| 48 | thread.daemon = True |
| 49 | thread.start() |
| 50 | logging.info("Started API endpoint @ http://%s:%d" % (self.ip, self.port)) |
| 51 | |
| 52 | |
| 53 | def _start_flask(self): |
| 54 | self.app.run(self.ip, self.port, debug=True, use_reloader=False) |
| 55 | |
| 56 | |
| 57 | class ComputeStart(Resource): |
| 58 | """ |
| 59 | Start a new compute instance: A docker container (note: zerorpc does not support keyword arguments) |
| 60 | :param dc_label: name of the DC |
| 61 | :param compute_name: compute container name |
| 62 | :param image: image name |
| 63 | :param command: command to execute |
| 64 | :param network: list of all interface of the vnf, with their parameters (id=id1,ip=x.x.x.x/x),... |
| 65 | :return: networks list({"id":"input","ip": "10.0.0.254/8"}, {"id":"output","ip": "11.0.0.254/24"}) |
| 66 | """ |
| 67 | global dcs |
| 68 | |
| 69 | def put(self, dc_label, compute_name): |
| 70 | logging.debug("API CALL: compute start") |
| 71 | try: |
| 72 | |
| 73 | image = json.loads(request.json).get("image") |
| 74 | network = json.loads(request.json).get("network") |
| 75 | command = json.loads(request.json).get("docker_command") |
| 76 | c = dcs.get(dc_label).startCompute( |
| 77 | compute_name, image= image, command= command, network= network) |
| 78 | # return docker inspect dict |
| 79 | return c. getStatus(), 200 |
| 80 | except Exception as ex: |
| 81 | logging.exception("API error.") |
| 82 | return ex.message, 500 |
| 83 | |
| 84 | class ComputeStop(Resource): |
| 85 | |
| 86 | global dcs |
| 87 | |
| 88 | def get(self, dc_label, compute_name): |
| 89 | logging.debug("API CALL: compute stop") |
| 90 | try: |
| 91 | return dcs.get(dc_label).stopCompute(compute_name), 200 |
| 92 | except Exception as ex: |
| 93 | logging.exception("API error.") |
| 94 | return ex.message,500 |
| 95 | |
| 96 | |
| 97 | class ComputeList(Resource): |
| 98 | |
| 99 | global dcs |
| 100 | |
| 101 | def get(self, dc_label): |
| 102 | logging.debug("API CALL: compute list") |
| 103 | try: |
| 104 | if dc_label == 'None': |
| 105 | # return list with all compute nodes in all DCs |
| 106 | all_containers = [] |
| 107 | for dc in dcs.itervalues(): |
| 108 | all_containers += dc.listCompute() |
| 109 | return [(c.name, c.getStatus()) for c in all_containers], 200 |
| 110 | else: |
| 111 | # return list of compute nodes for specified DC |
| 112 | return [(c.name, c.getStatus()) |
| 113 | for c in dcs.get(dc_label).listCompute()], 200 |
| 114 | except Exception as ex: |
| 115 | logging.exception("API error.") |
| 116 | return ex.message, 500 |
| 117 | |
| 118 | |
| 119 | class ComputeStatus(Resource): |
| 120 | |
| 121 | global dcs |
| 122 | |
| 123 | def get(self, dc_label, compute_name): |
| 124 | |
| 125 | logging.debug("API CALL: compute list") |
| 126 | |
| 127 | try: |
| 128 | return dcs.get(dc_label).containers.get(compute_name).getStatus(), 200 |
| 129 | except Exception as ex: |
| 130 | logging.exception("API error.") |
| 131 | return ex.message, 500 |
| 132 | |
| 133 | class DatacenterList(Resource): |
| 134 | |
| 135 | global dcs |
| 136 | |
| 137 | def get(self): |
| 138 | logging.debug("API CALL: datacenter list") |
| 139 | try: |
| 140 | return [d.getStatus() for d in dcs.itervalues()], 200 |
| 141 | except Exception as ex: |
| 142 | logging.exception("API error.") |
| 143 | return ex.message, 500 |
| 144 | |
| 145 | class DatacenterStatus(Resource): |
| 146 | |
| 147 | global dcs |
| 148 | |
| 149 | def get(self, dc_label): |
| 150 | logging.debug("API CALL: datacenter status") |
| 151 | try: |
| 152 | return dcs.get(dc_label).getStatus(), 200 |
| 153 | except Exception as ex: |
| 154 | logging.exception("API error.") |
| 155 | return ex.message, 500 |