1 .. ==================================================================================
2 .. Copyright (c) 2019 Nokia
3 .. Copyright (c) 2018-2019 AT&T Intellectual Property.
5 .. Licensed under the Apache License, Version 2.0 (the "License");
6 .. you may not use this file except in compliance with the License.
7 .. You may obtain a copy of the License at
9 .. http://www.apache.org/licenses/LICENSE-2.0
11 .. Unless required by applicable law or agreed to in writing, software
12 .. distributed under the License is distributed on an "AS IS" BASIS,
13 .. WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 .. See the License for the specific language governing permissions and
15 .. limitations under the License.
16 .. ==================================================================================
18 A1 Mediator Release Notes
19 =========================
21 All notable changes to this project will be documented in this file.
23 The format is based on `Keep a Changelog <http://keepachangelog.com/>`__
24 and this project adheres to `Semantic Versioning <http://semver.org/>`__.
30 * Represents a resillent version of 1.0.0 that uses Redis for persistence
36 * a1 now has a seperate, continuous polling thread
37 this will enable operations like database cleanup (based on ACKs) and external notifications in real time,
38 rather than when the API is invoked
39 * all rmr send and receive operations are now in this thread
40 * introduces a thread safe job queue between the two threads
41 * Not done yet: database cleanups in the thread
42 * Bump rmr python version
43 * Clean up some logging
49 * Moves the "database" access calls to mimick the SDL API, in preparation for moving to SDL
50 * Does not yet actually use SDL or Redis, but the transition to those will be much shorter after this change.
57 * Represents v1.0.0 of the A1 API for O-RAN-SC Release A
59 - Implement type DELETE
60 - Clean up where policy instance cleanups happen
66 * Upgrade rmr to 1.9.0
67 * Upgrade rmr-python to 0.13.2
68 * Use the new helpers module in rmr-python for the rec all functionality
69 * Switch rmr mode to a multithreaded mode that continuously reads from rmr and populates an internal queue of messages with a deterministic queue size (2048) which is better behavior for A1
70 * Fix a memory leak (python obj is garbage collected but not the underlying C memory allocation)
77 * Implement instance delete
78 * Moves away from the status vector and now aggregates statuses
79 * Pop through a1s mailbox "3x as often"; on all 3 kinds of instance GET since all such calls want the latest information
80 * Misc cleanups in controller (closures ftw)
81 * Add rmr-version.yaml for CICD jobs
86 * Implement GET all policy type ids
87 * Implement GET all policy instance ids for a policy type
88 * fix a tiny bug in integration test receiver
93 * switch to rmr 1.8.1 to pick up a non blocking variant of rmr that deals with bad routing tables (no hanging connections / blocking calls)
94 * improve test receiver to behave with this setup
95 * add integration test for this case
96 * this also switches past 1.5.x, which included another change that altered the behavior of rts; deal with this with a change to a1s helmchart (env: `RMR_SRC_ID`) that causes the sourceid to be set to a1s service name, which was not needed prior
97 * improve integration tests overall
105 * Remove RIC manifest
106 * Read type GET to get schema for instance PUT
107 * Remove Utils (no longer needed)
108 * lots more tests (unit and integration)
114 * This is on the road to release 1.0.0. It is not meant to be tested (E2E) as it's own release
115 * Implement the Release A spec in the openapi.yaml
116 * Rework A1 to follow that spec
117 * Remove rmr_mapping now that we use policyid as the mtype to send and a well known mtype for the ACKs
118 * Add the delay receiver test to the tavern integration tests
119 * Remove unneeded ENV variables from helm charts
120 * Switch away from builder images to avoid quicksand; upgrade rmr at our own pace
127 * Update to later rmr-python
128 * Add docs about upgrading rmr
129 * remove bombarder since tavern runs apache bench
136 * Update to later rmr-python
142 * Greatly reduce the size of A1 docker from 1.25GB to ~278MB.
143 * Add a seperate dockerfile for unit testing
150 * Rename all /ric/ URLs to be consistent with requirements of /a1-p/
158 * Implement the GET on policies
159 * Add a new endpoint for healthcheck. NOTE, it has been decided by oran architecture documents that this policy interface should be named a1-p in all URLS. In a future release the existing URLs will be renamed (existing URLs were not changed in this release).
167 * Fix the 400, which was in the API, but wasn't actually implemented
168 * Update the test fixture manifests to reflect the latest adm control, paves way for next feature coming which is a policy GET
177 * Use base Docker with NNG version 1.1.1
186 * Upgrade RMR due to a bug that was preventing rmr from init in kubernetes
195 * Run unit tests as part of docker build
204 * Convert docs to appropriate format
205 * Move rmr string to int mapping to a file
214 * Use tavern to test the actual running docker container
215 * Restructures the integration tests to run as a single tox command
216 * Re-ogranizes the README and splits out the Developers guide, which is not needed by users.
225 * Adds a defense mechanism against A1 getting queue-overflowed with messages A1 doesnt care about; A1 now ignores all incoming messages it's not waiting for, so it's queue size should now always be "tiny", i.e., never exceeding the number of valid requests it's waiting for ACKs back for
226 * Adds a test "bombarding" script that tests this
235 * Main purpose of this change is to fix a potential race condition where A1 sends out M1 expecting ACK1, and while waiting for ACK1, sends out M2 expecting ACK2, but gets back ACK2, ACK1. Prior to this change, A1 may have eaten ACK2 and never fufilled the ACK1 request.
236 * Fix a bug in the unit tests (found using a fresh container with no RIC manifest!)
237 * Fix a (critical) bug in a1rmr due to a rename in the last iteration (RMR_ERR_RMR_RCV_RETRY_INTERVAL)
238 * Make unit tests faster by setting envs in tox
239 * Move to the now publically available rmr-python
240 * Return a 400 if am xapp does not expect a body, but the PUT provides one
241 * Adds a new test policy to the example RIC manifest and a new delayed receiver to test the aformentiond race condition
250 * Upgrade to rmr 0.10.0
251 * Fix bad api spec RE GET
252 * Fix a (big) bug where transactionid wasn't being checked, which wouldn't have worked on sending two policies to the same downstream policy handler
261 * Rip some testing structures out of here that should have been in rmr (those are now in rmr 0.9.0, upgrade to that)
262 * Run Python BLACK for formatting
271 * Fix a blocking execution bug by moving from rmr's timeout to a non blocking call + retry loop + asyncronous sleep
272 * Changes the ENV RMR_RCV_TIMEOUT to RMR_RCV_RETRY_INTERVAL
281 * Update to rmr 0.8.3
282 * Change 503 to 504 for the case where downstream does not reply, per recommendation
283 * Add a 502 with different reasons if the xapp replies but with a bad/malformed/missing status
284 * Make testing much more modular, in anticipating of moving some unit test functionality into rmr itself
293 * Crash immediately if manifest isn't mounted
294 * Add unit tests for utils
304 * Upgrade A1 to rmr 0.8.0
305 * Go from deb RMR installation to git
306 * Remove obnoxious receiver logging
315 * Upgrade A1 to rmr 0.6.0
324 * Add license headers
333 * Introduce RIC Manifest
334 * Move some testing functionality into a helper module
335 * Read the policyname to rmr type mapping from manifest
336 * Do PUT payload validation based on the manifest
345 * Bump rmr python dep version
346 * Include a Dockerized test receiver
347 * Stencil out the mising GET
349 * Include a test docker compose file
358 * Initial Implementation