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path: root/policyhandler/policy_utils.py
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2019-04-015.0.0 policy-handler - new PDP API or old PDP API4.0.0-ONAPdublinAlex Shatov1-380/+0
- in R4 Dublin the policy-engine introduced a totally new API - policy-handler now has a startup option to either use the new PDP API or the old PDP API that was created-updated before the end of 2018 - see README.md and README_pdp_api_v0.md for instructions on how to setup the policy-handler running either with the new PDP API or the old (pdp_api_v0) PDP API - this is a massive refactoring that changed almost all the source files, but kept the old logic when using the old (pdp_api_v0) PDP API - all the code related to PDP API version is split into two subfolders = pdp_api/ contains the new PDP API source code = pdp_api_v0/ contains the old (2018) PDP API source code = pdp_client.py imports from either pdp_api or pdp_api_v0 = the rest of the code is only affected when it needs to branch the logic - logging to policy_handler.log now shows the path of the source file to allow tracing which PDP API is actually used - when the new PDP API is used, the policy-update flow is disabled = passive mode of operation = no web-socket = no periodic catch_up = no policy-filters = reduced web-API - only a single /policy_latest endpoint is available /policies_latest returns 404 /catch_up request is accepted, but ignored - on new PDP API: http /policy_latest returns the new data from the new PDP API with the following fields added by the policy-handler to keep other policy related parts intact in R4 (see pdp_api/policy_utils.py) = "policyName" = policy_id + "." + "policyVersion" + ".xml" = "policyVersion" = str("metadata"."policy-version") = "config" - is the renamed "properties" from the new PDP API response - unit tests are split into two subfolders as well = main/ for the new PDP API testing = pdp_api_v0/ for the old (2018) PDP API - removed the following line from the license text of changed files ECOMP is a trademark and service mark of AT&T Intellectual Property. - the new PDP API is expected to be extended and redesigned in R5 El Alto - on retiring the old PDP API - the intention is to be able to remove the pdp_api_v0/ subfolder and minimal related cleanup of the code that imports that as well as the cleanup of the config.py, etc. Change-Id: Ief9a2ae4541300308caaf97377f4ed051535dbe4 Signed-off-by: Alex Shatov <alexs@att.com> Issue-ID: DCAEGEN2-1128
2018-08-244.2.0 policy-handler - periodic reconfigureAlex Shatov1-5/+7
- reconfigure == periodically retrieve the policy-handler config from consul-kv and compare to previous config and subconfigs. If changed, reconfigure the subunits - selectively change one or any settings for the following = catch_up timer interval = reconfigure timer interval = deployment-handler url and params (thread-safe) = policy-engine url and params (thread-safe) = web-socket url to policy-engine (through a callback) - each subunit has its own Settings that keep track of changes - try-catch and metrics around discovery - consul API - hidden the secrets from logs - froze the web-socket version to 0.49.0 because 0.50.0 and 0.51.0 are broken - looking around for stable alternatives - fixed-adapted the callbacks passed to the web-socket lib that changed its API in 0.49.0 and later - log the stack on the exception occurring in the web-socket lib - unit test refactoring Change-Id: Id53bad59660a197f59d9aeb7c05ab761d1060cd0 Signed-off-by: Alex Shatov <alexs@att.com> Issue-ID: DCAEGEN2-470
2018-08-104.0.1 fix for removing the non-matching policyAlex Shatov1-4/+3
- fixed removing the policy that no longer match the filter = sending an empty policy_filter_matches for the policy_id - cleaner workaround on getting the updated policy when policy-engine sent policy-update notification before finishing the update on there side = using the collection of expected_versions instead of min_version_expected - some minor refactoring on policy_matcher and audit Change-Id: Ica3cb810378e61d6991c616f88265ff170d32a64 Signed-off-by: Alex Shatov <alexs@att.com> Issue-ID: DCAEGEN2-492
2018-08-074.0.0 new dataflow on policy-update and catchupAlex Shatov1-28/+232
- changed API and functionality - new dataflow - new dataflow between policy-handler and deployment-handler on policy-update and catchup = GETting policy_ids+versions and policy-filters from deployment-handler = PUTting policy-update and catchup in the new message format = data segmenting the policy-update/catchup messages to deployment-handler to avoid 413 on deployment-handler side = matching policies from policy-engine to policies and policy-filters from deployment-handler = coarsening the policyName filter received from deployment-handler to reduce the number messages passed to policy-engine on catchup = consolidating sequential policy-updates into a single request when the policy-update is busy - removed policy scope-prefixes from config and logic - it is not needed anymore because = the policy matching happens directly to policies and policy-filters received from deployment-handler = on catchup - the policy scope-prefix equivalents are calculated based on the data received from deployment-handler - API - GET /policies_latest now returns the info on deployed policy_ids+versions and policy-filters, rather than policies of the scope-prefixes previously found in config (obsolete) - not sending an empty catch_up message to deployment-handler when nothing changed - send policy-removed to deployment-handler when getting 404-not found from PDP on removal of policy - config change: removed catch_up.max_skips - obsolete - brought the latest CommonLogger.py - minor refactoring - improved naming of variables Change-Id: I36b3412eefd439088cb693703a6e5f18f4238b00 Signed-off-by: Alex Shatov <alexs@att.com> Issue-ID: DCAEGEN2-492
2018-06-143.0.0 policy-handler - migrated to python 3.6Alex Shatov1-4/+4
- migrated from python 2.7 to 3.6 - brought up the latest versions of dependencies -- Cherrypy 15.0.0, requests 2.18.4, websocket-client 0.48.0 - fixed migration errors -- renamed the standard package Queue to queue -- dict.items() instead of dict.iteritems() -- dict.keys() instead of dict.viewkeys() -- range() instead of xrange() -- subprocess.check_output(..., universal_newlines=True) to get str instead of byte-stream from stdout - cleaned up migration warnings -- super() instead of super(A, self) -- logger.warning() instead of .warn() - moved main() from policy_handler.py to __main__.py - getting the policy_handler version directly from setup.py instead of the env var on init of the audit Change-Id: I0fc4ddc51c08a64f3cfdc5d2f010b1c6a1ae92f0 Signed-off-by: Alex Shatov <alexs@att.com> Issue-ID: DCAEGEN2-515
2018-05-182.4.4 policy-handler - log process memoryAlex Shatov1-1/+2
- in search of the memory leak that is falsely reported by docker stats, the following runtime logging was added = process_memory - rss and other memory of the current process = virtual_memory - the memory info of the whole system = thread_stacks - the active threads with the full stack on each Change-Id: I5f5ab3a477bfba3aecc5963547aa82da6269670b Signed-off-by: Alex Shatov <alexs@att.com> Issue-ID: DCAEGEN2-514
2018-03-132.3.0 policy-handler - periodically catch_upAlex Shatov1-14/+55
- periodically catchup - interval is configurable = max_skips defines the number of times the catch_up message that is identical to previous one can be skipped - do not catchup more often than the interval even between the manual catchup and auto catchup - do not send the same catchup message twice in a row to the deployment-handler but not exceed a hard limit on catchup max_skips - catchup if the deployment-handler instance is changed Change-Id: I9a3fcc941e8a9e553abb3952dd882c37e0f5fdfe Signed-off-by: Alex Shatov <alexs@att.com> Issue-ID: DCAEGEN2-389
2018-02-27up the version to 2.1.0 for policy-handlerAlex Shatov1-1/+0
- removed #org.onap.dcae from license text Change-Id: I07f11e60c4677109ccb826c4e969b47acb4c498a Signed-off-by: Alex Shatov <alexs@att.com> Issue-ID: DCAEGEN2-347
2018-02-12Update license textLusheng Ji1-1/+1
Change-Id: I5626e0bbd3abaf96d8ab6a9b864329917b728c12 Signed-off-by: Lusheng Ji <lji@research.att.com> Issue-ID: DCAEGEN2-325
2018-01-11moved module docstring below the license textAlex Shatov1-2/+2
Change-Id: I2a3628cb67d15ab2828f6818764d111df13e795a Issue-ID: DCAEGEN2-249 Signed-off-by: Alex Shatov <alexs@att.com>
2018-01-10variable collection of policies per componentAlex Shatov1-0/+134
* new feature variable collection of policies per component in DCAE * massive refactoring * dissolved the external PolicyEngine.py into policy_receiver.py - kept only the web-socket communication to PolicyEngine * new /healthcheck - shows some stats of service running * Unit Test coverage 75% Change-Id: I816b7d5713ae0dd88fa73d3656f272b4f3e7946e Issue-ID: DCAEGEN2-249 Signed-off-by: Alex Shatov <alexs@att.com>