1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
# ================================================================================
# Copyright (c) 2017-2018 AT&T Intellectual Property. All rights reserved.
# ================================================================================
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============LICENSE_END=========================================================
#
# ECOMP is a trademark and service mark of AT&T Intellectual Property.
""" send notification to deploy-handler"""
import json
import logging
import requests
from .config import Config
from .customize import CustomizerUser
from .discovery import DiscoveryClient
from .onap.audit import REQUEST_X_ECOMP_REQUESTID, Audit, AuditHttpCode
POOL_SIZE = 1
class DeployHandler(object):
""" deploy-handler """
_logger = logging.getLogger("policy_handler.deploy_handler")
_lazy_inited = False
_requests_session = None
_config = None
_url = None
_url_policy = None
_target_entity = None
_custom_kwargs = None
_server_instance_uuid = None
@staticmethod
def _lazy_init(audit):
""" set static properties """
if DeployHandler._lazy_inited:
return
DeployHandler._lazy_inited = True
DeployHandler._custom_kwargs = CustomizerUser.get_customizer() \
.get_deploy_handler_kwargs(audit)
if not DeployHandler._custom_kwargs \
or not isinstance(DeployHandler._custom_kwargs, dict):
DeployHandler._custom_kwargs = {}
DeployHandler._requests_session = requests.Session()
DeployHandler._requests_session.mount(
'https://',
requests.adapters.HTTPAdapter(pool_connections=POOL_SIZE, pool_maxsize=POOL_SIZE)
)
DeployHandler._requests_session.mount(
'http://',
requests.adapters.HTTPAdapter(pool_connections=POOL_SIZE, pool_maxsize=POOL_SIZE)
)
config_dh = Config.config.get("deploy_handler")
if config_dh and isinstance(config_dh, dict):
# dns based routing to deployment-handler
# config for policy-handler >= 2.4.0
# "deploy_handler" : {
# "target_entity" : "deployment_handler",
# "url" : "http://deployment_handler:8188"
# }
DeployHandler._target_entity = config_dh.get("target_entity", "deployment_handler")
DeployHandler._url = config_dh.get("url")
DeployHandler._logger.info("dns based routing to %s: url(%s)",
DeployHandler._target_entity, DeployHandler._url)
if not DeployHandler._url:
# discover routing to deployment-handler at consul-services
if not isinstance(config_dh, dict):
# config for policy-handler <= 2.3.1
# "deploy_handler" : "deployment_handler"
DeployHandler._target_entity = str(config_dh or "deployment_handler")
DeployHandler._url = DiscoveryClient.get_service_url(audit, DeployHandler._target_entity)
DeployHandler._url_policy = str(DeployHandler._url or "") + '/policy'
DeployHandler._logger.info(
"got %s policy url(%s)", DeployHandler._target_entity, DeployHandler._url_policy)
@staticmethod
def policy_update(audit, message):
"""
post policy_updated message to deploy-handler
returns condition whether it needs to catch_up
"""
if not message:
return
DeployHandler._lazy_init(audit)
sub_aud = Audit(aud_parent=audit, targetEntity=DeployHandler._target_entity,
targetServiceName=DeployHandler._url_policy)
headers = {REQUEST_X_ECOMP_REQUESTID : sub_aud.request_id}
msg_str = json.dumps(message)
headers_str = json.dumps(headers)
log_action = "post to {0} at {1}".format(
DeployHandler._target_entity, DeployHandler._url_policy)
log_data = " msg={0} headers={1}".format(msg_str, headers_str)
log_line = log_action + log_data
DeployHandler._logger.info(log_line)
sub_aud.metrics_start(log_line)
if not DeployHandler._url:
error_msg = "no url found to {0}".format(log_line)
DeployHandler._logger.error(error_msg)
sub_aud.set_http_status_code(AuditHttpCode.SERVICE_UNAVAILABLE_ERROR.value)
audit.set_http_status_code(AuditHttpCode.SERVICE_UNAVAILABLE_ERROR.value)
sub_aud.metrics(error_msg)
return
res = None
try:
res = DeployHandler._requests_session.post(
DeployHandler._url_policy, json=message, headers=headers,
**DeployHandler._custom_kwargs
)
except requests.exceptions.RequestException as ex:
error_msg = "failed to {0}: {1}{2}".format(log_action, str(ex), log_data)
DeployHandler._logger.exception(error_msg)
sub_aud.set_http_status_code(AuditHttpCode.SERVICE_UNAVAILABLE_ERROR.value)
audit.set_http_status_code(AuditHttpCode.SERVICE_UNAVAILABLE_ERROR.value)
sub_aud.metrics(error_msg)
return
sub_aud.set_http_status_code(res.status_code)
audit.set_http_status_code(res.status_code)
log_line = "response {0} from {1}: text={2}{3}" \
.format(res.status_code, log_action, res.text, log_data)
sub_aud.metrics(log_line)
DeployHandler._logger.info(log_line)
if res.status_code != requests.codes.ok:
return
result = res.json() or {}
prev_server_instance_uuid = DeployHandler._server_instance_uuid
DeployHandler._server_instance_uuid = result.get("server_instance_uuid")
deployment_handler_changed = (prev_server_instance_uuid
and prev_server_instance_uuid != DeployHandler._server_instance_uuid)
if deployment_handler_changed:
log_line = "deployment_handler_changed: {1} != {0}" \
.format(prev_server_instance_uuid, DeployHandler._server_instance_uuid)
sub_aud.info(log_line)
DeployHandler._logger.info(log_line)
return deployment_handler_changed
|
