Initial commit for lightweight build
[osm/RO.git] / lcm / lcm.py
diff --git a/lcm/lcm.py b/lcm/lcm.py
new file mode 100644 (file)
index 0000000..9958142
--- /dev/null
@@ -0,0 +1,380 @@
+#!/usr/bin/python3
+# -*- coding: utf-8 -*-
+
+import asyncio
+import aiohttp
+import yaml
+import ROclient
+import time
+import dbmemory
+import logging
+
+from copy import deepcopy
+from uuid import uuid4
+
+#streamformat = "%(asctime)s %(name)s %(levelname)s: %(message)s"
+streamformat = "%(name)s %(levelname)s: %(message)s"
+logging.basicConfig(format=streamformat, level=logging.DEBUG)
+logger = logging.getLogger('lcm')
+
+ro_account = {
+    "url": "http://localhost:9090/openmano",
+    "tenant": "osm"
+}
+
+vca_account = {
+    # TODO
+}
+
+# conains created tasks/futures to be able to cancel
+lcm_tasks = {}
+
+headers_req = {'Accept': 'application/yaml', 'content-type': 'application/yaml'}
+ns_status = ("CREATION-SCHEDULED", "DEPLOYING", "CONFIGURING", "DELETION-SCHEDULED", "UN-CONFIGURING", "UNDEPLOYING")
+
+# TODO replace with database calls
+db = dbmemory.dbmemory()
+
+
+
+async def CreateNS(loop, nsr_id):
+    logger.debug("CreateNS task nsr_id={} Enter".format(nsr_id))
+    nsr_lcm = {
+        "id": nsr_id,
+        "RO": {"vnfd_id": {}, "nsd_id": None, "nsr_id": None, "nsr_status": "SCHEDULED"},
+        "nsr_ip": {},
+        "VCA": {"TODO"},
+        "status": "BUILD",
+        "status_detailed": "",
+    }
+
+    deloyment_timeout = 120
+    try:
+        ns_request = db.get_one("ns_request", {"id": nsr_id})
+        nsd = db.get_one("nsd", {"id": ns_request["nsd_id"]})
+        RO = ROclient.ROClient(loop, endpoint_url=ro_account["url"], tenant=ro_account["tenant"],
+                               datacenter=ns_request["vim"])
+        nsr_lcm["status_detailed"] = "Creating vnfd at RO"
+        # ns_request["constituent-vnfr-ref"] = []
+
+        db.create("nsr_lcm", nsr_lcm)
+
+        # get vnfds, instantiate at RO
+        logger.debug("CreateNS task nsr_id={} RO VNFD".format(nsr_id))
+        for c_vnf in nsd["constituent-vnfd"]:
+            vnfd_id = c_vnf["vnfd-id-ref"]
+            vnfd = db.get_one("vnfd", {"id": vnfd_id})
+            vnfd.pop("_admin", None)
+            vnfd.pop("_id", None)
+            # vnfr = deepcopy(vnfd)
+            # vnfr["member-vnf-index"] = c_vnf["member-vnf-index"]
+            # vnfr["nsr-id"] = nsr_id
+            # vnfr["id"] = uuid4()
+            # vnfr["vnf-id"] = vnfd["id"]
+            # ns_request["constituent-vnfr-ref"],append(vnfd_id)
+
+            # TODO change id for RO in case it is present
+            try:
+                desc = await RO.create("vnfd", descriptor=vnfd)
+                nsr_lcm["RO"]["vnfd_id"][vnfd_id] = desc["uuid"]
+                db.replace("nsr_lcm", {"id": nsr_id}, nsr_lcm)
+            except ROclient.ROClientException as e:
+                if e.http_code == 409:  # conflict, vnfd already present
+                    print("debug", e)
+                else:
+                    raise
+
+            # db_new("vnfr", vnfr)
+            # db_update("ns_request", nsr_id, ns_request)
+
+        # create nsd at RO
+        logger.debug("CreateNS task nsr_id={} RO NSD".format(nsr_id))
+        nsr_lcm["status_detailed"] = "Creating nsd at RO"
+        nsd_id = ns_request["nsd_id"]
+        nsd = db.get_one("nsd", {"id": nsd_id})
+        nsd.pop("_admin", None)
+        nsd.pop("_id", None)
+        try:
+            desc = await RO.create("nsd", descriptor=nsd)
+            nsr_lcm["RO"]["nsd_id"] = desc["uuid"]
+            db.replace("nsr_lcm", {"id": nsr_id}, nsr_lcm)
+        except ROclient.ROClientException as e:
+            if e.http_code == 409:  # conflict, nsd already present
+                print("debug", e)
+            else:
+                raise
+
+        # Crate ns at RO
+        logger.debug("CreateNS task nsr_id={} RO NS".format(nsr_id))
+        nsr_lcm["status_detailed"] = "Creating ns at RO"
+        desc = await RO.create("ns", name=ns_request["name"], datacenter=ns_request["vim"], scenario=nsr_lcm["RO"]["nsd_id"])
+        RO_nsr_id = desc["uuid"]
+        nsr_lcm["RO"]["nsr_id"] = RO_nsr_id
+        nsr_lcm["RO"]["nsr_status"] = "BUILD"
+        db.replace("nsr_lcm", {"id": nsr_id}, nsr_lcm)
+
+        # wait until NS is ready
+        deloyment_timeout = 600
+        while deloyment_timeout > 0:
+            ns_status_detailed = "Waiting ns ready at RO"
+            nsr_lcm["status_detailed"] = ns_status_detailed
+            desc = await RO.show("ns", RO_nsr_id)
+            ns_status, ns_status_info = RO.check_ns_status(desc)
+            nsr_lcm["RO"]["nsr_status"] = ns_status
+            if ns_status == "ERROR":
+                raise ROclient.ROClientException(ns_status_info)
+            elif ns_status == "BUILD":
+                nsr_lcm["status_detailed"] = ns_status_detailed + "; nsr_id: '{}', {}".format(nsr_id, ns_status_info)
+            elif ns_status == "ACTIVE":
+                nsr_lcm["nsr_ip"] = RO.get_ns_vnf_ip(desc)
+                break
+            else:
+                assert False, "ROclient.check_ns_status returns unknown {}".format(ns_status)
+
+            await asyncio.sleep(5, loop=loop)
+            deloyment_timeout -= 5
+        if deloyment_timeout <= 0:
+            raise ROclient.ROClientException("Timeot wating ns to be ready")
+        nsr_lcm["status_detailed"] = "Configuring vnfr"
+        db.replace("nsr_lcm", {"id": nsr_id}, nsr_lcm)
+
+        #for nsd in nsr_lcm["descriptors"]["nsd"]:
+
+        logger.debug("CreateNS task nsr_id={} VCA look for".format(nsr_id))
+        for c_vnf in nsd["constituent-vnfd"]:
+            vnfd_id = c_vnf["vnfd-id-ref"]
+            vnfd_index = int(c_vnf["member-vnf-index"])
+            vnfd = db.get_one("vnfd", {"id": vnfd_id})
+            if vnfd.get("vnf-configuration") and vnfd["vnf-configuration"].get("juju"):
+                proxy_charm = vnfd["vnf-configuration"]["juju"]["charm"]
+                config_primitive = vnfd["vnf-configuration"].get("config-primitive")
+                # get parameters for juju charm
+                base_folder = vnfd["_admin"]["storage"]
+                path = base_folder + "/charms/" + proxy_charm
+                mgmt_ip = nsr_lcm['nsr_ip'][vnfd_index]
+                # TODO launch VCA charm
+                # task = asyncio.ensure_future(DeployCharm(loop, path, mgmt_ip, config_primitive))
+        nsr_lcm["status"] = "DONE"
+        db.replace("nsr_lcm", {"id": nsr_id}, nsr_lcm)
+
+        return nsr_lcm
+
+    except (ROclient.ROClientException, Exception) as e:
+        logger.debug("CreateNS nsr_id={} Exception {}".format(nsr_id, e), exc_info=True)
+        nsr_lcm["status"] = "ERROR"
+        nsr_lcm["status_detailed"] += ": ERROR {}".format(e)
+    finally:
+        logger.debug("CreateNS task nsr_id={} Exit".format(nsr_id))
+
+
+async def DestroyNS(loop, nsr_id):
+    logger.debug("DestroyNS task nsr_id={} Enter".format(nsr_id))
+    nsr_lcm = db.get_one("nsr_lcm", {"id": nsr_id})
+    ns_request = db.get_one("ns_request", {"id": nsr_id})
+
+    nsr_lcm["status"] = "DELETING"
+    nsr_lcm["status_detailed"] = "Deleting charms"
+    db.replace("nsr_lcm", {"id": nsr_id}, nsr_lcm)
+    # TODO destroy VCA charm
+
+    # remove from RO
+    RO = ROclient.ROClient(loop, endpoint_url=ro_account["url"], tenant=ro_account["tenant"],
+                           datacenter=ns_request["vim"])
+    # Delete ns
+    try:
+        RO_nsr_id = nsr_lcm["RO"]["nsr_id"]
+        if RO_nsr_id:
+            nsr_lcm["status_detailed"] = "Deleting ns at RO"
+            desc = await RO.delete("ns", RO_nsr_id)
+            print("debug", "deleted RO ns {}".format(RO_nsr_id))
+            nsr_lcm["RO"]["nsr_id"] = None
+            nsr_lcm["RO"]["nsr_status"] = "DELETED"
+            db.replace("nsr_lcm", {"id": nsr_id}, nsr_lcm)
+    except ROclient.ROClientException as e:
+        if e.http_code == 404:
+            nsr_lcm["RO"]["nsr_id"] = None
+            nsr_lcm["RO"]["nsr_status"] = "DELETED"
+            db.replace("nsr_lcm", {"id": nsr_id}, nsr_lcm)
+            print("warning", e)
+        else:
+            print("error", e)
+
+    # Delete nsd
+    try:
+        RO_nsd_id = nsr_lcm["RO"]["nsd_id"]
+        if RO_nsd_id:
+            nsr_lcm["status_detailed"] = "Deleting nsd at RO"
+            desc = await RO.delete("nsd", RO_nsd_id)
+            print("debug", "deleted RO nsd {}".format(RO_nsd_id))
+            nsr_lcm["RO"]["nsd_id"] = None
+            db.replace("nsr_lcm", {"id": nsr_id}, nsr_lcm)
+    except ROclient.ROClientException as e:
+        if e.http_code == 404:
+            nsr_lcm["RO"]["nsd_id"] = None
+            print("warning", e)
+        else:
+            print("error", e)
+
+    for vnf_id, RO_vnfd_id in nsr_lcm["RO"]["vnfd_id"].items():
+        try:
+            if RO_vnfd_id:
+                nsr_lcm["status_detailed"] = "Deleting vnfd at RO"
+                desc = await RO.delete("vnfd", RO_vnfd_id)
+                print("debug", "deleted RO vnfd {}".format(RO_vnfd_id))
+                nsr_lcm["RO"]["vnfd_id"][vnf_id] = None
+                db.replace("nsr_lcm", {"id": nsr_id}, nsr_lcm)
+        except ROclient.ROClientException as e:
+            if e.http_code == 404:
+                nsr_lcm["RO"]["vnfd_id"][vnf_id] = None
+                print("warning", e)
+            else:
+                print("error", e)
+    logger.debug("DestroyNS task nsr_id={} Exit".format(nsr_id))
+
+
+async def test(loop, param=None):
+    logger.debug("Starting/Ending test task: {}".format(param))
+
+
+def cancel_tasks(loop, nsr_id):
+    """
+    Cancel all active tasks of a concrete nsr identified for nsr_id
+    :param loop: loop
+    :param nsr_id:  nsr identity
+    :return: None, or raises an exception if not possible
+    """
+    global lcm_tasks
+    if not lcm_tasks.get(nsr_id):
+        return
+    for order_id, tasks_set in lcm_tasks[nsr_id].items():
+        for task_name, task in tasks_set.items():
+            result = task.cancel()
+            if result:
+                logger.debug("nsr_id={} order_id={} task={} cancelled".format(nsr_id, order_id, task_name))
+    lcm_tasks[nsr_id] = {}
+
+
+
+async def read_kafka(loop, bus_info):
+    global lcm_tasks
+    logger.debug("kafka task Enter")
+    order_id = 1
+    # future = asyncio.Future()
+    with open(bus_info["file"]) as f:
+
+        # ignore old orders. Read file
+        command = "fake"
+        while command:
+            command = f.read()
+
+        while True:
+            command = f.read()
+            if not command:
+                await asyncio.sleep(2, loop=loop)
+                continue
+            order_id += 1
+            command = command.strip()
+            command, _, params = command.partition(" ")
+            if command == "exit":
+                print("Bye!")
+                break
+            elif command.startswith("#"):
+                continue
+            elif command == "echo":
+                print(params)
+            elif command == "test":
+                asyncio.Task(test(loop, params), loop=loop)
+            elif command == "break":
+                print("put a break in this line of code")
+            elif command == "new-ns":
+                nsr_id = params.strip()
+                logger.debug("Deploying NS {}".format(nsr_id))
+                task = asyncio.ensure_future(CreateNS(loop, nsr_id))
+                if nsr_id not in lcm_tasks:
+                    lcm_tasks[nsr_id] = {}
+                lcm_tasks[nsr_id][order_id] = {"CreateNS": task}
+            elif command == "del-ns":
+                nsr_id = params.strip()
+                logger.debug("Deleting NS {}".format(nsr_id))
+                cancel_tasks(loop, nsr_id)
+                task = asyncio.ensure_future(DestroyNS(loop, nsr_id))
+                if nsr_id not in lcm_tasks:
+                    lcm_tasks[nsr_id] = {}
+                lcm_tasks[nsr_id][order_id] = {"DestroyNS": task}
+            elif command == "get-ns":
+                nsr_id = params.strip()
+                nsr_lcm = db.get_one("nsr_lcm", {"id": nsr_id})
+                print("nsr_lcm", nsr_lcm)
+                print("lcm_tasks", lcm_tasks.get(nsr_id))
+            else:
+                logger.debug("unknown command '{}'".format(command))
+                print("Usage:\n  echo <>\n  new-ns <ns1|ns2>\n  del-ns <ns1|ns2>\n  get-ns <ns1|ns2>")
+    logger.debug("kafka task Exit")
+
+
+def lcm():
+    loop = asyncio.get_event_loop()
+    loop.run_until_complete(read_kafka(loop, {"file": "/home/atierno/OSM/osm/NBI/kafka"}))
+    return
+
+
+def lcm2():
+    loop = asyncio.get_event_loop()
+    # asyncio.ensure_future(CreateNS, loop)
+    try:
+        content = loop.run_until_complete(CreateNS(loop, "ns1"))
+        print("Done: {}".format(content))
+    except ROclient.ROClientException as e:
+        print("Error {}".format(e))
+
+    time.sleep(10)
+
+    content = loop.run_until_complete(DestroyNS(loop, "ns1"))
+    print(content)
+
+    loop.close()
+
+
+if __name__ == '__main__':
+
+    # FOR TEST
+    RO_VIM = "OST2_MRT"
+
+    #FILL DATABASE
+    with open("/home/atierno/OSM/osm/devops/descriptor-packages/vnfd/ping_vnf/src/ping_vnfd.yaml") as f:
+        vnfd = yaml.load(f)
+        vnfd_clean, _ = ROclient.remove_envelop("vnfd", vnfd)
+        vnfd_clean["_admin"] = {"storage": "/home/atierno/OSM/osm/devops/descriptor-packages/vnfd/ping_vnf"}
+        db.create("vnfd", vnfd_clean)
+    with open("/home/atierno/OSM/osm/devops/descriptor-packages/vnfd/pong_vnf/src/pong_vnfd.yaml") as f:
+        vnfd = yaml.load(f)
+        vnfd_clean, _ = ROclient.remove_envelop("vnfd", vnfd)
+        vnfd_clean["_admin"] = {"storage": "/home/atierno/OSM/osm/devops/descriptor-packages/vnfd/pong_vnf"}
+        db.create("vnfd", vnfd_clean)
+    with open("/home/atierno/OSM/osm/devops/descriptor-packages/nsd/ping_pong_ns/src/ping_pong_nsd.yaml") as f:
+        nsd = yaml.load(f)
+        nsd_clean, _ = ROclient.remove_envelop("nsd", nsd)
+        nsd_clean["_admin"] = {"storage": "/home/atierno/OSM/osm/devops/descriptor-packages/nsd/ping_pong_ns"}
+        db.create("nsd", nsd_clean)
+
+    ns_request = {
+        "id": "ns1",
+        "nsr_id": "ns1",
+        "name": "pingpongOne",
+        "vim": RO_VIM,
+        "nsd_id": nsd_clean["id"],  # nsd_ping_pong
+    }
+    db.create("ns_request", ns_request)
+    ns_request = {
+        "id": "ns2",
+        "nsr_id": "ns2",
+        "name": "pingpongTwo",
+        "vim": RO_VIM,
+        "nsd_id": nsd_clean["id"],  # nsd_ping_pong
+    }
+    db.create("ns_request", ns_request)
+    # lcm2()
+    lcm()
+
+
+