def db_update_one(self, filter, operations, after=True, col="active"):
"""
Update the data into the active db
:param filter: Which instance to update, e.g., {"id": "xxx"}
:param operations: data to update to db, e.g., {"$set": {}}
:param after: return AFTER or BEFORE
:param col: collection to operate on
:return: The updated host json dict
"""
state = CLUSTER_STATE.active.name if col == "active" \
else CLUSTER_STATE.released.name
filter.update({"state": state})
logger.info("filter {} operations {}".format(filter, operations))
kwargs = dict(('set__' + k, v) for (k, v) in operations.items())
for k, v in kwargs.items():
logger.info("k={}, v={}".format(k, v))
try:
ClusterModel.objects(id=filter.get("id")).update(upsert=True,
**kwargs)
doc = ClusterModel.objects.get(id=filter.get("id"))
except Exception as exc:
logger.info("exception {}".format(exc.message))
return None
return doc
def clean(self, id):
"""
Clean a host's free clusters.
:param id: host id
:return: True or False
"""
logger.debug("clean host with id = {}".format(id))
host = self.get_by_id(id)
if not host:
return False
clusters = ClusterModel.objects(host=host)
if host.status != "active":
return False
if len(clusters) <= 0:
return True
host = self.db_set_by_id(id, **{"autofill": False})
schedulable_status = host.schedulable
if schedulable_status:
host = self.db_set_by_id(id, **{"schedulable": False})
for cluster_item in clusters:
cid = str(cluster_item.id)
t = Thread(target=cluster.cluster_handler.delete, args=(cid,))
t.start()
time.sleep(0.2)
if schedulable_status:
self.db_set_by_id(id, **{"schedulable": schedulable_status})
return True
def reset(self, id):
"""
Clean a host's free clusters.
:param id: host id
:return: True or False
"""
logger.debug("clean host with id = {}".format(id))
host = self.get_by_id(id)
if not host or ClusterModel.objects(host=host).count() < 0:
logger.warning("No find resettable host with id ={}".format(id))
return False
host_type = host.type
return self.host_agents[host_type].reset(host_type, host.worker_api)
def host_actions():
logger.info("/host_op, method=" + r.method)
request_debug(r, logger)
if r.content_type.startswith("application/json"):
body = dict(r.get_json(force=True, silent=True))
else:
body = r.form
host_id, action = body['id'], body['action']
if not host_id or not action:
error_msg = "host POST without enough data"
logger.warning(error_msg)
return make_fail_resp(error=error_msg,
data=body)
else:
if action == "fillup":
if host_handler.fillup(host_id):
logger.debug("fillup successfully")
return make_ok_resp()
else:
error_msg = "Failed to fillup the host."
logger.warning(error_msg)
return make_fail_resp(error=error_msg, data=body)
elif action == "clean":
if host_handler.clean(host_id):
logger.debug("clean successfully")
return make_ok_resp()
else:
error_msg = "Failed to clean the host."
logger.warning(error_msg)
return make_fail_resp(error=error_msg, data=body)
elif action == "reset":
if host_handler.reset(host_id):
logger.debug("reset successfully")
try:
host_model = HostModel.objects.get(id=host_id)
clusters = ClusterModel.objects(host=host_model)
for cluster_item in clusters:
cluster_item.delete()
except Exception:
pass
return make_ok_resp()
else:
error_msg = "Failed to reset the host."
logger.warning(error_msg)
return make_fail_resp(error=error_msg, data=body)
error_msg = "unknown host action={}".format(action)
logger.warning(error_msg)
return make_fail_resp(error=error_msg, data=body)
def list(self, filter_data={}, col_name="active"):
""" List clusters with given criteria
:param filter_data: Image with the filter properties
:param col_name: Use data in which col_name
:return: list of serialized doc
"""
result = []
if col_name in [e.name for e in CLUSTER_STATE]:
logger.debug("List all {} clusters".format(col_name))
filter_data.update({"state": col_name})
clusters = ClusterModel.objects(__raw__=filter_data)
result = self._schema(clusters, many=True)
else:
logger.warning("Unknown cluster col_name=" + col_name)
return result
def fillup(self, id):
"""
Fullfil a host with clusters to its capacity limit
:param id: host id
:return: True or False
"""
logger.debug("Try fillup host {}".format(id))
host = self.get_by_id(id)
if not host:
return False
if host.status != "active":
logger.warning("host {} is not active".format(id))
return False
clusters = ClusterModel.objects(host=host)
num_new = host.capacity - len(clusters)
if num_new <= 0:
logger.warning("host {} already full".format(id))
return True
free_ports = cluster.cluster_handler.find_free_start_ports(id, num_new)
logger.debug("Free_ports = {}".format(free_ports))
def create_cluster_work(start_port):
cluster_name = "{}_{}".format(
host.name,
int((start_port - CLUSTER_PORT_START) / CLUSTER_PORT_STEP))
cluster_size = random.choice(NETWORK_SIZE_FABRIC_V1)
config = FabricV1NetworkConfig(
consensus_plugin=CONSENSUS_PLUGIN_SOLO, size=cluster_size)
config.network_type = NETWORK_TYPE_FABRIC_V1_1
cid = cluster.cluster_handler.create(name=cluster_name,
host_id=id,
config=config,
start_port=start_port)
if cid:
logger.debug("Create cluster {} with id={}".format(
cluster_name, cid))
else:
logger.warning("Create cluster failed")
for p in free_ports:
t = Thread(target=create_cluster_work, args=(p, ))
t.start()
time.sleep(0.2)
return True
def _get_cluster_info(self, cid, config):
cluster = ClusterModel.objects.get(id=cid)
cluster_name = cluster.name
kube_config = KubernetesOperation()._get_config_from_params(cluster
.host
.k8s_param)
clusters_exists = ClusterModel.objects(host=cluster.host)
ports_index = [service.port for service in ServicePort
.objects(cluster__in=clusters_exists)]
nfsServer_ip = cluster.host.k8s_param.get('K8SNfsServer')
consensus = config['consensus_plugin']
return cluster, cluster_name, kube_config, ports_index, \
nfsServer_ip, consensus
def find_free_start_ports(self, host_id, number):
""" Find the first available port for a new cluster api
This is NOT lock-free. Should keep simple, fast and safe!
Check existing cluster records in the host, find available one.
:param host_id: id of the host
:param number: Number of ports to get
:return: The port list, e.g., [7050, 7150, ...]
"""
logger.debug("Find {} start ports for host {}".format(number, host_id))
if number <= 0:
logger.warning("number {} <= 0".format(number))
return []
host = self.host_handler.get_by_id(host_id)
if not host:
logger.warning("Cannot find host with id={}", host_id)
return ""
clusters_exists = ClusterModel.objects(host=host)
# clusters_valid = list(filter(lambda c: c.get("service_url"),
# clusters_exists))
# ports_existed = list(map(
# lambda c: int(c["service_url"]["rest"].split(":")[-1]),
# clusters_valid))
ports_existed = [
service.port
for service in ServicePort.objects(cluster__in=clusters_exists)
]
logger.debug("The ports existed: {}".format(ports_existed))
if len(ports_existed) + number >= 1000:
logger.warning("Too much ports are already in used.")
return []
candidates = [
CLUSTER_PORT_START + i * CLUSTER_PORT_STEP
for i in range(len(ports_existed) + number)
]
result = list(filter(lambda x: x not in ports_existed, candidates))
logger.debug("Free ports are {}".format(result[:number]))
return result[:number]
def delete(self, id):
""" Delete a host instance
:param id: id of the host to delete
:return:
"""
logger.debug("Delete a host with id={0}".format(id))
try:
h = HostModel.objects.get(id=id)
except Exception:
logger.warning("Cannot delete non-existed host")
return False
host_type = h.type
if ClusterModel.objects(host=h).count():
logger.warning("Host type not found.")
return False
elif (host_type == WORKER_TYPE_DOCKER or
host_type == WORKER_TYPE_SWARM):
self.host_agents[host_type].delete(h.worker_api)
elif host_type == WORKER_TYPE_VSPHERE:
if h.status == "pending":
return False
vmuuid = h.vcparam[utils.VMUUID]
vcip = h.vcparam[utils.VCIP]
vcusername = h.vcparam[utils.VCUSERNAME]
vcpwd = h.vcparam[utils.VCPWD]
vcport = h.vcparam[utils.VCPORT]
self.host_agents[host_type].delete(vmuuid,
vcip,
vcusername,
vcpwd,
vcport)
h.delete()
return True
def update(self, id, d):
""" Update a host's property
TODO: may check when changing host type
:param id: id of the host
:param d: dict to use as updated values
:return: serialized result or obj
"""
logger.debug("Get a host with id=" + id)
h_old = self.get_by_id(id)
if not h_old:
logger.warning("No host found with id=" + id)
return {}
if h_old.status == "pending":
return {}
if "worker_api" in d and not d["worker_api"].startswith("tcp://"):
d["worker_api"] = "tcp://" + d["worker_api"]
if "capacity" in d:
d["capacity"] = int(d["capacity"])
if d["capacity"] < ClusterModel.objects(host=h_old).count():
logger.warning("Cannot set cap smaller than running clusters")
return {}
if "log_server" in d and "://" not in d["log_server"]:
d["log_server"] = "udp://" + d["log_server"]
if "log_type" in d and d["log_type"] == CLUSTER_LOG_TYPES[0]:
d["log_server"] = ""
if "autofill" in d:
d["autofill"] = d["autofill"] == "on"
if "schedulable" in d:
d["schedulable"] = d["schedulable"] == "on"
self.db_set_by_id(id, **d)
h_new = self.get_by_id(id)
return self._schema(h_new)
def create(self, name, host_id, config, start_port=0, user_id=""):
""" Create a cluster based on given data
TODO: maybe need other id generation mechanism
Args:
name: name of the cluster
host_id: id of the host URL
config: network configuration
start_port: first service port for cluster, will generate
if not given
user_id: user_id of the cluster if start to be applied
return: Id of the created cluster or None
"""
logger.info("Create cluster {}, host_id={}, config={}, start_port={}, "
"user_id={}".format(name, host_id, config.get_data(),
start_port, user_id))
worker = self.host_handler.get_active_host_by_id(host_id)
if not worker:
logger.error("Cannot find available host to create new network")
return None
if ClusterModel.objects(host=worker).count() >= worker.capacity:
logger.warning("host {} is already full".format(host_id))
return None
peer_num = int(config.get_data().get("size", 4))
ca_num = 2 if peer_num > 1 else 1
cid = uuid4().hex
mapped_ports, peer_ports, ca_ports, orderer_ports, explorer_ports = \
self.gen_ports_mapping(peer_num, ca_num, start_port, host_id)
if not mapped_ports:
logger.error("mapped_ports={}".format(mapped_ports))
return None
env_mapped_ports = dict(
((k + '_port').upper(), str(v)) for (k, v) in mapped_ports.items())
network_type = config['network_type']
net = { # net is a blockchain network instance
'id': cid,
'name': name,
'user_id': user_id,
'worker_api': worker.worker_api,
'network_type': network_type, # e.g., fabric-1.0
'env': env_mapped_ports,
'status': NETWORK_STATUS_CREATING,
'mapped_ports': mapped_ports,
'service_url': {}, # e.g., {rest: xxx:7050, grpc: xxx:7051}
}
net.update(config.get_data())
# try to start one cluster at the host
cluster = ClusterModel(**net)
cluster.host = worker
cluster.save()
# start cluster creation asynchronously for better user experience.
t = Thread(target=self._create_cluster,
args=(cluster, cid, mapped_ports, worker, config, user_id,
peer_ports, ca_ports, orderer_ports, explorer_ports))
t.start()
return cid
