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authorVijay Venkatesh Kumar <vv770d@att.com>2020-01-23 22:30:04 +0000
committerGerrit Code Review <gerrit@onap.org>2020-01-23 22:30:04 +0000
commitd10dc65f13e3b82c3732f2ca0dd26f953e624202 (patch)
treee2279af24e4b881efc3d0fc006adf4926c7e45e0 /oti/event-handler/otihandler/web_server.py
parent6f2d7c7bd510345436f54fd1554280cc731a1dc4 (diff)
parent158b75abd6095a3155f5057832ec868bc99ced36 (diff)
Merge "Add OTI event-handler project"
Diffstat (limited to 'oti/event-handler/otihandler/web_server.py')
-rw-r--r--oti/event-handler/otihandler/web_server.py603
1 files changed, 603 insertions, 0 deletions
diff --git a/oti/event-handler/otihandler/web_server.py b/oti/event-handler/otihandler/web_server.py
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+++ b/oti/event-handler/otihandler/web_server.py
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+# ================================================================================
+# Copyright (c) 2019-2020 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=========================================================
+
+"""web-service for oti_handler"""
+
+import json
+import logging
+import os
+import time
+from datetime import datetime
+
+import cherrypy
+
+from otihandler.cbs_rest import CBSRest
+from otihandler.config import Config
+from otihandler.dti_processor import DTIProcessor
+from otihandler.onap.audit import Audit
+
+
+class DTIWeb(object):
+ """run REST API of OTI Handler"""
+
+ logger = logging.getLogger("oti_handler.web_server")
+ HOST_INADDR_ANY = ".".join("0"*4)
+
+ @staticmethod
+ def run_forever(audit):
+ """run the web-server of OTI Handler forever"""
+
+ cherrypy.config.update({"server.socket_host": DTIWeb.HOST_INADDR_ANY,
+ "server.socket_port": Config.wservice_port})
+
+ protocol = "http"
+ tls_info = ""
+ if Config.tls_server_cert_file and Config.tls_private_key_file:
+ tm_cert = os.path.getmtime(Config.tls_server_cert_file)
+ tm_key = os.path.getmtime(Config.tls_private_key_file)
+ #cherrypy.server.ssl_module = 'builtin'
+ cherrypy.server.ssl_module = 'pyOpenSSL'
+ cherrypy.server.ssl_certificate = Config.tls_server_cert_file
+ cherrypy.server.ssl_private_key = Config.tls_private_key_file
+ if Config.tls_server_ca_chain_file:
+ cherrypy.server.ssl_certificate_chain = Config.tls_server_ca_chain_file
+ protocol = "https"
+ tls_info = "cert: {} {} {}".format(Config.tls_server_cert_file,
+ Config.tls_private_key_file,
+ Config.tls_server_ca_chain_file)
+
+ cherrypy.tree.mount(_DTIWeb(), '/')
+
+ DTIWeb.logger.info(
+ "%s with config: %s", audit.info("running oti_handler as {}://{}:{} {}".format(
+ protocol, cherrypy.server.socket_host, cherrypy.server.socket_port, tls_info)),
+ json.dumps(cherrypy.config))
+ cherrypy.engine.start()
+
+ # If HTTPS server certificate changes, exit to let kubernetes restart us
+ if Config.tls_server_cert_file and Config.tls_private_key_file:
+ while True:
+ time.sleep(600)
+ c_tm_cert = os.path.getmtime(Config.tls_server_cert_file)
+ c_tm_key = os.path.getmtime(Config.tls_private_key_file)
+ if c_tm_cert > tm_cert or c_tm_key > tm_key:
+ DTIWeb.logger.info("cert or key file updated")
+ cherrypy.engine.stop()
+ cherrypy.engine.exit()
+ break
+
+
+class _DTIWeb(object):
+ """REST API of DTI Handler"""
+
+ VALID_EVENT_TYPES = ['deploy', 'undeploy', 'add', 'delete', 'update', 'notify']
+
+ @staticmethod
+ def _get_request_info(request):
+ """Returns info about the http request."""
+
+ return "{} {}{}".format(request.method, request.script_name, request.path_info)
+
+
+ #----- Common endpoint methods
+
+ @cherrypy.expose
+ @cherrypy.tools.json_out()
+ def healthcheck(self):
+ """Returns healthcheck results."""
+
+ req_info = _DTIWeb._get_request_info(cherrypy.request)
+ audit = Audit(req_message=req_info, headers=cherrypy.request.headers)
+
+ DTIWeb.logger.info("%s", req_info)
+
+ result = Audit.health()
+
+ DTIWeb.logger.info("healthcheck %s: result=%s", req_info, json.dumps(result))
+
+ audit.audit_done(result=json.dumps(result))
+ return result
+
+ @cherrypy.expose
+ def shutdown(self):
+ """Shutdown the web server."""
+
+ req_info = _DTIWeb._get_request_info(cherrypy.request)
+ audit = Audit(req_message=req_info, headers=cherrypy.request.headers)
+
+ DTIWeb.logger.info("%s: --- stopping REST API of DTI Handler ---", req_info)
+
+ cherrypy.engine.exit()
+
+ health = json.dumps(Audit.health())
+ audit.info("oti_handler health: {}".format(health))
+ DTIWeb.logger.info("oti_handler health: %s", health)
+ DTIWeb.logger.info("%s: --------- the end -----------", req_info)
+ result = str(datetime.now())
+ audit.info_requested(result)
+ return "goodbye! shutdown requested {}".format(result)
+
+ # ----- DTI Handler mock endpoint methods
+ @cherrypy.expose
+ @cherrypy.tools.json_out()
+ @cherrypy.tools.json_in()
+ def mockevents(self):
+
+ result = {"KubeNamespace":"com-my-dcae-test", "KubePod":"pod-0", "KubeServiceName":"pod-0.service.local", "KubeServicePort":"8880", "KubeClusterFqdn":"fqdn-1"}
+
+ return result
+
+ #----- DTI Handler endpoint methods
+
+ @cherrypy.expose
+ @cherrypy.tools.json_out()
+ @cherrypy.tools.json_in()
+ def events(self, notify="y"):
+ """
+ Run dti reconfig script in service component instances configured to accept the DTI Event.
+
+ POST /events < <dcae_event>
+
+ POST /events?ndtify="n" < <dcae_event>
+
+ where <dcae_event> is the entire DTI Event passed as a JSON object and contains at least these top-level keys:
+ dcae_service_action : string
+ required, 'deploy' or 'undeploy'
+ dcae_target_name : string
+ required, VNF Instance ID
+ dcae_target_type : string
+ required, VNF Type of the VNF Instance
+ dcae_service_location : string
+ optional, CLLI location. Not provided or '' infers all locations.
+
+ Parameters
+ ----------
+ notify : string
+ optional, default "y", any of these will not notify components: [ "f", "false", "False", "FALSE", "n", "no" ]
+ When "n" will **not** notify components of this DTI Event update to Consul.
+
+ Returns
+ -------
+ dict
+ JSON object containing success or error of executing the dti reconfig script on
+ each component instance's docker container, keyed by service_component_name.
+
+ """
+
+ if cherrypy.request.method != "POST":
+ raise cherrypy.HTTPError(404, "unexpected method {}".format(cherrypy.request.method))
+
+ dti_event = cherrypy.request.json or {}
+ str_dti_event = json.dumps(dti_event)
+
+ req_info = _DTIWeb._get_request_info(cherrypy.request)
+ audit = Audit(req_message="{}: {}".format(req_info, str_dti_event), \
+ headers=cherrypy.request.headers)
+ DTIWeb.logger.info("%s: dti_event=%s headers=%s", \
+ req_info, str_dti_event, json.dumps(cherrypy.request.headers))
+
+ dcae_service_action = dti_event.get('dcae_service_action')
+ if not dcae_service_action:
+ msg = 'dcae_service_action is missing'
+ DTIWeb.logger.error(msg)
+ raise cherrypy.HTTPError(400, msg)
+ elif dcae_service_action.lower() not in self.VALID_EVENT_TYPES:
+ msg = 'dcae_service_action is invalid'
+ DTIWeb.logger.error(msg)
+ raise cherrypy.HTTPError(400,msg)
+
+ dcae_target_name = dti_event.get('dcae_target_name')
+ if not dcae_target_name:
+ msg = 'dcae_target_name is missing'
+ DTIWeb.logger.error(msg)
+ raise cherrypy.HTTPError(400, msg)
+
+ dcae_target_type = dti_event.get('dcae_target_type', '')
+ if not dcae_target_type:
+ msg = 'dcae_target_type is missing'
+ DTIWeb.logger.error(msg)
+ raise cherrypy.HTTPError(400, msg)
+
+ send_notification = True
+ if (isinstance(notify, bool) and not notify) or \
+ (isinstance(notify, str) and notify.lower() in [ "f", "false", "n", "no" ]):
+ send_notification = False
+
+ prc = DTIProcessor(dti_event, send_notification=send_notification)
+ result = prc.get_result()
+
+ DTIWeb.logger.info("%s: dti_event=%s result=%s", \
+ req_info, str_dti_event, json.dumps(result))
+
+ success, http_status_code, _ = audit.audit_done(result=json.dumps(result))
+ if not success:
+ cherrypy.response.status = http_status_code
+
+ return result
+
+ def get_docker_events(self, request, service, location):
+ """
+ common routine for dti_docker_events and oti_docker_events
+
+ :param request: HTTP GET request
+ :param service: HTTP request query parameter for service name
+ :param location: HTTP request query parameter for location CLLI
+ :return:
+ """
+
+ if request.method != "GET":
+ raise cherrypy.HTTPError(404, "unexpected method {}".format(request.method))
+
+ req_info = _DTIWeb._get_request_info(request)
+ audit = Audit(req_message=req_info, headers=request.headers)
+
+ return DTIProcessor.get_docker_raw_events(service, location)
+
+ def get_k8s_events(self, request, **params):
+ """
+ common routine for dti_k8s_events and oti_k8s_events
+
+ :param request: HTTP GET request
+ :param params: HTTP request query parameters
+ :return:
+ """
+ if request.method != "GET":
+ raise cherrypy.HTTPError(404, "unexpected method {}".format(request.method))
+
+ req_info = _DTIWeb._get_request_info(request)
+ audit = Audit(req_message=req_info, headers=request.headers)
+
+ pod = request.params['pod']
+ namespace = request.params['namespace']
+ cluster = request.params['cluster']
+
+ return DTIProcessor.get_k8_raw_events(pod, cluster, namespace)
+
+ @cherrypy.expose
+ @cherrypy.tools.json_out()
+ def oti_k8s_events(self, **params):
+ """
+ Retrieve raw JSON events from application events database
+
+ GET /oti_k8_events?pod=<sts-1>&namespace=<ns1>&cluster=<cluster1>
+
+ Parameters
+ ----------
+ pod ID : string
+ POD ID of the stateful set POD
+ namespace: string
+ kubernetes namespace
+ cluster: string
+ kubernetes cluster FQDN
+
+ Returns
+ -------
+ dict
+ JSON object containing the fully-bound configuration.
+
+ """
+
+ return self.get_k8s_events(cherrypy.request, params)
+
+ @cherrypy.expose
+ @cherrypy.tools.json_out()
+ def dti_k8s_events(self, **params):
+ """
+ Retrieve raw JSON events from application events database
+
+ GET /dti_k8_events?pod=<sts-1>&namespace=<ns1>&cluster=<cluster1>
+
+ Parameters
+ ----------
+ pod ID : string
+ POD ID of the stateful set POD
+ namespace: string
+ kubernetes namespace
+ cluster: string
+ kubernetes cluster FQDN
+
+ Returns
+ -------
+ dict
+ JSON object containing the fully-bound configuration.
+
+ """
+
+ return self.get_k8s_events(cherrypy.request, params)
+
+ @cherrypy.expose
+ @cherrypy.tools.json_out()
+ def oti_docker_events(self, service, location=None):
+ """
+ Retrieve raw JSON events from application events database related to docker deployments
+
+ GET /oti_docker_events?service=<svc>&location=<location>
+
+ Parameters
+ ----------
+ service : string
+ The service component name assigned by dockerplugin to the component
+ that is unique to the cloudify node instance and used in its Consul key(s).
+ location : string
+ optional. allows multiple values separated by commas. Filters DTI events with dcae_service_location in service_location.
+ If service_location is not provided, then defaults to dockerhost or k8s cluster master node service Consul TAGs if service_name is provided,
+ otherwise results are not location filtered.
+
+ Returns
+ -------
+ dict
+ JSON object containing the fully-bound configuration.
+
+ """
+
+ return self.get_docker_events(cherrypy.request, service, location)
+
+ @cherrypy.expose
+ @cherrypy.tools.json_out()
+ def dti_docker_events(self, service, location=None):
+ """
+ Retrieve raw JSON events from application events database related to docker deployments
+
+ GET /dti_docker_events?service=<svc>&location=<location>
+
+ Parameters
+ ----------
+ service : string
+ The service component name assigned by dockerplugin to the component
+ that is unique to the cloudify node instance and used in its Consul key(s).
+ location : string
+ optional. allows multiple values separated by commas. Filters DTI events with dcae_service_location in service_location.
+ If service_location is not provided, then defaults to dockerhost or k8s cluster master node service Consul TAGs if service_name is provided,
+ otherwise results are not location filtered.
+
+ Returns
+ -------
+ dict
+ JSON object containing the fully-bound configuration.
+
+ """
+
+ return self.get_docker_events(cherrypy.request, service, location)
+
+ #----- Config Binding Service (CBS) endpoint methods
+
+ @cherrypy.expose
+ @cherrypy.popargs('service_name')
+ @cherrypy.tools.json_out()
+ def service_component(self, service_name):
+ """
+ Retrieve fully-bound configuration for service_name from Consul KVs.
+
+ GET /service_component/<service_name>
+
+ Parameters
+ ----------
+ service_name : string
+ The service component name assigned by dockerplugin to the component
+ that is unique to the cloudify node instance and used in its Consul key(s).
+
+ Returns
+ -------
+ dict
+ JSON object containing the fully-bound configuration.
+
+ """
+
+ if cherrypy.request.method != "GET":
+ raise cherrypy.HTTPError(404, "unexpected method {}".format(cherrypy.request.method))
+
+ req_info = _DTIWeb._get_request_info(cherrypy.request)
+ audit = Audit(req_message=req_info, headers=cherrypy.request.headers)
+ DTIWeb.logger.info("%s: service_name=%s headers=%s", \
+ req_info, service_name, json.dumps(cherrypy.request.headers))
+
+ try:
+ result = CBSRest.get_service_component(service_name)
+ except Exception as e:
+ result = {"ERROR": "exception {}: {!s}".format(type(e).__name__, e)}
+ audit.set_http_status_code(404)
+
+ DTIWeb.logger.info("%s: service_name=%s result=%s", \
+ req_info, service_name, json.dumps(result))
+
+ success, http_status_code, _ = audit.audit_done(result=json.dumps(result))
+ if not success:
+ cherrypy.response.status = http_status_code
+
+ return result
+
+ @cherrypy.expose
+ @cherrypy.popargs('service_name')
+ @cherrypy.tools.json_out()
+ def service_component_all(self, service_name, service_location=None, policy_ids="y"):
+ """
+ Retrieve all information for service_name (config, dti, dti_events, and policies) from Consul KVs.
+
+ GET /service_component_all/<service_name>
+
+ GET /service_component_all/<service_name>?service_location=<service_location>
+
+ GET /service_component_all/<service_name>?service_location=<service_location>;policy_ids=n
+
+ Parameters
+ ----------
+ service_name : string
+ The service component name assigned by dockerplugin to the component
+ that is unique to the cloudify node instance and used in its Consul key(s).
+ service_location : string
+ optional, allows multiple values separated by commas.
+ Filters DTI events with dcae_service_location in service_location.
+ policy_ids : string
+ optional, default "y", any of these will unset: [ "f", "false", "False", "FALSE", "n", "no" ]
+ When unset, formats policies items as a list (without policy_ids) rather than as an object indexed by policy_id.
+
+ Returns
+ -------
+ dict
+ JSON object containing all information for component service_name.
+ The top-level keys may include the following:
+ config : dict
+ The cloudify node's application_config property from when the start workflow was executed.
+ dti : dict
+ Keys are VNF Types that the component currently is assigned to monitor. Policy can change them.
+ dti_events : dict
+ The latest deploy DTI events, keyed by VNF Type and sub-keyed by VNF Instance ID.
+ policies : dict
+ event : dict
+ Contains information about when the policies folder was last written.
+ items : dict
+ Contains all policy bodies for the service_name component, keyed by policy_id.
+
+ """
+
+ if cherrypy.request.method != "GET":
+ raise cherrypy.HTTPError(404, "unexpected method {}".format(cherrypy.request.method))
+
+ req_info = _DTIWeb._get_request_info(cherrypy.request)
+ audit = Audit(req_message=req_info, headers=cherrypy.request.headers)
+ DTIWeb.logger.info("%s: service_name=%s headers=%s", \
+ req_info, service_name, json.dumps(cherrypy.request.headers))
+
+ policies_as_list = False
+ if (isinstance(policy_ids, bool) and not policy_ids) or \
+ (isinstance(policy_ids, str) and policy_ids.lower() in [ "f", "false", "n", "no" ]):
+ policies_as_list = True
+ try:
+ result = CBSRest.get_service_component_all(service_name, service_location=service_location, policies_as_list=policies_as_list)
+ except Exception as e:
+ result = {"ERROR": "exception {}: {!s}".format(type(e).__name__, e)}
+ audit.set_http_status_code(404)
+
+ DTIWeb.logger.info("%s: service_name=%s result=%s", \
+ req_info, service_name, json.dumps(result))
+
+ success, http_status_code, _ = audit.audit_done(result=json.dumps(result))
+ if not success:
+ cherrypy.response.status = http_status_code
+
+ return result
+
+ @cherrypy.expose
+ @cherrypy.popargs('service_name')
+ @cherrypy.tools.json_out()
+ def dti(self, service_name=None, vnf_type=None, vnf_id=None, service_location=None):
+ """
+ Retrieve current (latest, not undeployed) DTI events from Consul KVs.
+
+ GET /dti/<service_name>
+
+ GET /dti/<service_name>?vnf_type=<vnf_type>;vnf_id=<vnf_id>;service_location=<service_location>
+
+ GET /dti
+
+ GET /dti?vnf_type=<vnf_type>;vnf_id=<vnf_id>;service_location=<service_location>
+
+ Parameters
+ ----------
+ service_name : string
+ optional. The service component name assigned by dockerplugin to the component
+ that is unique to the cloudify node instance and used in its Consul key(s).
+ vnf_type : string
+ optional, allows multiple values separated by commas. Gets DTI events for these vnf_type(s).
+ vnf_id : string
+ optional. Requires vnf_type also. Gets DTI event for this vnf_id.
+ service_location : string
+ optional, allows multiple values separated by commas.
+ Filters DTI events with dcae_service_location in service_location.
+
+ Returns
+ -------
+ dict
+ Dictionary of DTI event(s).
+ If one vnf_type and vnf_id are both specified, then object returned will be just the one DTI event.
+ If one vnf_type is specified but not vnf_id, then DTI events will be keyed by vnf_id.
+ Otherwise the DTI events will be keyed by vnf_type, sub-keyed by vnf_id.
+
+ """
+
+ if cherrypy.request.method != "GET":
+ raise cherrypy.HTTPError(404, "unexpected method {}".format(cherrypy.request.method))
+
+ req_info = _DTIWeb._get_request_info(cherrypy.request)
+ audit = Audit(req_message=req_info, headers=cherrypy.request.headers)
+ DTIWeb.logger.info("%s: service_name=%s headers=%s", \
+ req_info, service_name, json.dumps(cherrypy.request.headers))
+
+ try:
+ result = CBSRest.get_dti(service_name=service_name, vnf_type=vnf_type, vnf_id=vnf_id, service_location=service_location)
+ except Exception as e:
+ result = {"ERROR": "exception {}: {!s}".format(type(e).__name__, e)}
+ audit.set_http_status_code(404)
+
+ DTIWeb.logger.info("%s: service_name=%s result=%s", \
+ req_info, service_name, json.dumps(result))
+
+ success, http_status_code, _ = audit.audit_done(result=json.dumps(result))
+ if not success:
+ cherrypy.response.status = http_status_code
+
+ return result
+
+ @cherrypy.expose
+ @cherrypy.popargs('service_name')
+ @cherrypy.tools.json_out()
+ def policies(self, service_name, policy_id=None):
+ """
+ Retrieve policies for service_name from Consul KVs.
+
+ GET /policies/<service_name>
+
+ GET /policies/<service_name>?policy_id=<policy_id>
+
+ Parameters
+ ----------
+ service_name : string
+ The service component name assigned by dockerplugin to the component
+ that is unique to the cloudify node instance and used in its Consul key(s).
+ policy_id : string
+ optional. Limits returned policy to this policy_id.
+
+ Returns
+ -------
+ dict
+ JSON object containing policy bodies for the service_name component.
+ If policy_id is specified, then object returned will be just the one policy body.
+ If policy_id is not specified, then object will contain all policy bodies, keyed by policy_id.
+
+ """
+
+ if cherrypy.request.method != "GET":
+ raise cherrypy.HTTPError(404, "unexpected method {}".format(cherrypy.request.method))
+
+ req_info = _DTIWeb._get_request_info(cherrypy.request)
+ audit = Audit(req_message=req_info, headers=cherrypy.request.headers)
+ DTIWeb.logger.info("%s: service_name=%s headers=%s", \
+ req_info, service_name, json.dumps(cherrypy.request.headers))
+
+ try:
+ result = CBSRest.get_policies(service_name, policy_id=policy_id)
+ except Exception as e:
+ result = {"ERROR": "exception {}: {!s}".format(type(e).__name__, e)}
+ audit.set_http_status_code(404)
+
+ DTIWeb.logger.info("%s: service_name=%s result=%s", \
+ req_info, service_name, json.dumps(result))
+
+ success, http_status_code, _ = audit.audit_done(result=json.dumps(result))
+ if not success:
+ cherrypy.response.status = http_status_code
+
+ return result