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# Copyright (c) Authors of Clover
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
from __future__ import print_function
from kubernetes import client, config
import grpc
import argparse
import pickle
import nginx_pb2
import nginx_pb2_grpc
def run(args):
# get pod ip for grpc
pod_ip = get_podip(args['service_name'])
if pod_ip == '':
return "Cant find service with name: {}".format(args['service_name'])
nginx_grpc = pod_ip + ':50054'
channel = grpc.insecure_channel(nginx_grpc)
stub = nginx_pb2_grpc.ControllerStub(channel)
# modify config
if args['service_type'] == 'lb':
modify_lb(stub)
elif args['service_type'] == 'proxy':
modify_proxy(stub)
elif args['service_type'] == 'server':
modify_server(stub)
else:
return "Invalid service type: {}".format(args['service_type'])
return "Modification complete"
def get_podip(pod_name):
config.load_kube_config()
v1 = client.CoreV1Api()
ret = v1.list_pod_for_all_namespaces(watch=False)
ip = ''
for i in ret.items:
if i.metadata.name.lower().find(pod_name.lower()) != -1:
print(i.status.pod_ip)
ip = i.status.pod_ip
return str(ip)
def modify_proxy(stub):
response = stub.ModifyProxy(nginx_pb2.ConfigProxy(
server_port='9180', server_name='http-proxy',
location_path='/', proxy_path='http://clover-server:9180',
mirror_path='http://snort-ids:80'))
print(response.message)
def modify_server(stub):
response = stub.ModifyServer(nginx_pb2.ConfigServer(
server_port='9180', server_name='clover-server',
site_root='/var/www/html', site_index='index.nginx-debian.html'))
print(response.message)
def modify_lb(stub):
slb_list = pickle.dumps(
['clover-server1', 'clover-server2', 'clover-server3'])
response = stub.ModifyLB(nginx_pb2.ConfigLB(
server_port='9188', server_name='http-lb',
slb_list=slb_list,
slb_group='cloverlb', lb_path='/'))
print(response.message)
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument(
'--service_type', required=True,
help='The service to reconfigure')
parser.add_argument(
'--service_name', required=True,
help='The service to reconfigure')
args = parser.parse_args()
print(run(vars(args)))
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