X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=docs%2Fdeveloper-guide.rst;h=e2e258b911aeba1dc7448cb68cb15f197e46c529;hb=refs%2Fheads%2Fmaster;hp=60c1d9ab755ed6a50f54ba7635b19767aed3b1c9;hpb=438a0a662e2e67af7f248f9715b54f92efc4a80c;p=ric-plt%2Fa1.git diff --git a/docs/developer-guide.rst b/docs/developer-guide.rst index 60c1d9a..e2e258b 100644 --- a/docs/developer-guide.rst +++ b/docs/developer-guide.rst @@ -1,156 +1,63 @@ -.. ================================================================================== -.. Copyright (c) 2019 Nokia -.. Copyright (c) 2018-2019 AT&T Intellectual Property. -.. -.. 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. -.. ================================================================================== - -A1 Dev Guide -============ +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 -Tech Stack -========== - -- OpenAPI3 -- Connexion -- Flask with Gevent serving -- Python3.7 - -Version bumping +Developer Guide =============== -This project follows semver. When changes are made, the versions are in: +.. contents:: + :depth: 3 + :local: -1) ``docs/release-notes.rst`` +Tech Stack +---------- -2) ``setup.py`` +The A1 Mediator is implemented in Golang. -3) ``container-tag.yaml`` -4) ``integration_tests/a1mediator/Chart.yaml`` +Running A1 Standalone +--------------------- -6) ``a1/openapi.yml`` (this is an API version, not a software version) +The A1 container can be run standalone, which means using an in-memory mock +version of SDL and a static route table. The host machine must have the RMR +library and the environment must define the variable `prometheus_multiproc_dir` +with a value like /tmp. Alternately, use the following command to run A1 as +a Docker container, using a route table mounted as a file from this git +repository and exposing the server's HTTP port on the Docker host:: -7) in the it/dep repo that contains a1 helm chart, ``values.yaml``, ``Chart.yml`` + docker run -e USE_FAKE_SDL=True -p 10000:10000 -v `pwd`:/opt/route [DOCKER_IMAGE_ID_HERE] -Unit Testing -============ -Note, this requires rmr to be installed on the system executing the tests. Also, this requires the python packages ``tox`` and ``pytest``. +Then test the server with an invocation such as this:: -:: + curl localhost:10000/A1-P/v2/healthcheck - tox - open htmlcov/index.html Integration testing -=================== -This tests A1’s external API with two test receivers. This depends on helm+k8s, meaning you cannot run this if this is not installed. +------------------- -Unlike the unit tests, however, this does not require rmr to be installed on the base system, as everything -runs in Docker, and the Dockerfiles provide/install rmr. +This tests A1’s external API with three test receivers. This requires +docker, kubernetes and helm. -First, build the latest A1 you are testing (from the root): -:: - - docker build --no-cache -t a1:latest . +Build all the images: -Note that this step also runs the unit tests, since running the unit tests are part of the Dockerfile for A1. - -If you've never run the integration tests before, build the test receiver, which is referenced in the helm chart: :: - cd integration_tests - docker build --no-cache -t testreceiver:latest . + docker build -t a1:latest . + cd integration_tests/testxappcode + docker build -t delayreceiver:latest -f Dockerfile-delay-receiver . + docker build -t queryreceiver:latest -f Dockerfile-query-receiver . + docker build -t testreceiver:latest -f Dockerfile-test-receiver . + -You do not need the "bombarder" image as they are not currently used in the integration tests (that is more for load testing). +Then, run all the tests from the root (this requires the python packages ``tox``, ``pytest``, and ``tavern``). -Finally, run all the tests from the root (this requires the python packages ``tox``, ``pytest``, and ``tavern``). :: tox -c tox-integration.ini This script: -1. Deploys 3 helm charts into a local kubernetes installation -2. Port forwards a pod ClusterIP to localhost -3. Uses “tavern” to run some tests against the server -4. Barrages the server with apache bench -5. Tears everything down - -Running locally -=============== - -1. This requires that RMR is installed on the base system. (the - Dockerfile does this when running in Docker) - -2. It also requires rmr-python >= 0.10.1 installed. (The dockerfile also - does this) - -3. Create a ``local.rt`` file and copy it into ``/opt/route/local.rt``. - Note, the example one in ``local_tests`` will need to be modified for - your scenario and machine. - -4. Copy a ric manifest into ``/opt/ricmanifest.json`` and an rmr mapping - table into ``/opt/rmr_string_int_mapping.txt``. You can use the test - ones packaged if you want: - - :: - - cp tests/fixtures/ricmanifest.json /opt/ricmanifest.json cp - tests/fixtures/rmr_string_int_mapping.txt - /opt/rmr_string_int_mapping.txt - -5. Then: - - sudo pip install –ignore-installed .; set -x LD_LIBRARY_PATH - /usr/local/lib/; set -x RMR_SEED_RT /opt/route/local.rt ; set -x - RMR_RCV_RETRY_INTERVAL 500; set -x RMR_RETRY_TIMES 10; - /usr/bin/run.py - -Testing locally -=============== - -There are also two test receivers in ``integration_tests`` you can run locally. -The first is meant to be used with the ``control_admission`` policy -(that comes in test fixture ric manifest): - -:: - - set -x LD_LIBRARY_PATH /usr/local/lib/; set -x RMR_SEED_RT /opt/route/local.rt ; python receiver.py - -The second can be used against the ``test_policy`` policy to test the -async nature of A1, and to test race conditions. You can start it with -several env variables as follows: - -:: - - set -x LD_LIBRARY_PATH /usr/local/lib/; set -x RMR_SEED_RT /opt/route/local.rt ; set -x TEST_RCV_PORT 4563; set -x TEST_RCV_RETURN_MINT 10001; set -x TEST_RCV_SEC_DELAY 5; set -x TEST_RCV_RETURN_PAYLOAD '{"ACK_FROM": "DELAYED_TEST", "status": "SUCCESS"}' ; python receiver.py - -To test the async nature of A1, trigger a call to ``test_policy``, which -will target the delayed receicer, then immediately call -``control_admission``. The ``control_admission`` policy return should be -returned immediately, whereas the ``test_policy`` should return after -about ``TEST_RCV_SEC_DELAY 5``. The ``test_policy`` should not block A1 -while it is sleeping, and both responses should be correct. - -:: - - curl -v -X PUT -H "Content-Type: application/json" -d '{}' localhost:10000/ric/policies/test_policy - curl -v -X PUT -H "Content-Type: application/json" -d '{"dc_admission_start_time": "10:00:00", "dc_admission_end_time": "11:00:00"}' localhost:10000/ric/policies/control_admission_time - -Finally, there is a test “bombarder” that will flood A1 with messages -with good message types but bad transaction IDs, to test A1’s resilience -against queue-overflow attacks - -:: - set -x LD_LIBRARY_PATH /usr/local/lib/; set -x RMR_SEED_RT /opt/route/local.rt ; python bombard.py +#. Deploys 3 helm charts (5 containers) into a local kubernetes installation +#. Port forwards a pod ClusterIP to localhost +#. Uses “tavern” to run some tests against the server +#. Barrages the server with Apache bench +#. Tears everything down