.. This work is licensed under a Creative Commons Attribution 4.0 International License.
.. http://creativecommons.org/licenses/by/4.0
-A1 Developer Guide
-==================
+Developer Guide
+===============
.. contents::
:depth: 3
Tech Stack
----------
-The A1 Mediator is implemented in Python, currently 3.8, and depends on these third-party packages
-and technologies:
+The A1 Mediator is implemented in Python, currently version 3.8, and
+depends on these third-party packages and technologies:
- OpenAPI3
- Connexion
- Flask with Gevent serving
- Swagger
+- Prometheus
+
Version bumping A1
------------------
-This project follows semver. When the version string changes, these files must be updated:
+This project follows semver. When the version string changes, these
+files must be updated:
#. ``setup.py``
#. ``container-tag.yaml``
#. ``a1/openapi.yaml`` But note this is an API version, not a software version; there's no need to bump on non-API changes.
#. And over in the ric-plt/ric-dep repo that contains the A1 Mediator helm chart, files ``values.yaml`` and ``Chart.yaml``.
-It's convenient to use the Python utility `bumpversion` to maintain the first three items.
-After setup (``pip install bumpversion``) you can change the patch version like this::
+It's convenient to use the Python utility `bumpversion` to maintain
+the first three items. After setup (``pip install bumpversion``) you
+can change the patch version like this::
bumpversion --verbose patch
bumpversion --verbose minor
-After the `bumpversion` utility has modified the files, update the release notes then commit.
+After the `bumpversion` utility has modified the files, update the
+release notes then commit.
Version bumping RMR
-------------------
-A1 (Dockerfile), Dockerfile-Unit-Test, and all three integration test receivers use an Alpine
-base image and install RMR from a base builder image. Must update and rebuild all 5 containers
-in the A1 repo (or just A1 itself for production usage).
+A1 (Dockerfile), Dockerfile-Unit-Test, and all three integration test
+receivers use an Alpine base image and install RMR from a base builder
+image. Must update and rebuild all 5 containers in the A1 repo (or
+just A1 itself for production usage).
In addition these items in this repo must be kept in sync:
-#. ``rmr-version.yaml`` controls what rmr gets installed for unit testing in Jenkins
-#. ``integration_tests/install_rmr.sh`` is a useful script for a variety of local testing.
+#. ``rmr-version.yaml`` controls what rmr gets installed for unit
+ testing in Jenkins
+#. ``integration_tests/install_rmr.sh`` is a useful script for a
+ variety of local testing.
+
Version bumping Python
----------------------
-If you want to update the version of python; for example this was recently done to move
-from 3.7 to 3.8, update these files:
+If you want to update the version of python; for example this was
+recently done to move from 3.7 to 3.8, update these files:
#. ``Dockerfile``
#. ``Dockerfile-Unit-Test``
#. ``tox.ini``
+
+Running A1 Standalone
+---------------------
+
+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::
+
+ docker run -e USE_FAKE_SDL=True -p 10000:10000 -v `pwd`:/opt/route [DOCKER_IMAGE_ID_HERE]
+
+Then test the server with an invocation such as this::
+
+ curl localhost:10000/a1-p/healthcheck
+
+
Unit Testing
------------
Running the unit tests requires the python packages ``tox`` and ``pytest``.
-The RMR library is also required during unit tests. If running directly from tox
-(outside a Docker container), install RMR using the script in the integration_tests
-directory: ``install_rmr.sh``.
+The RMR library is also required during unit tests. If running
+directly from tox (outside a Docker container), install RMR using the
+script in the integration_tests directory: ``install_rmr.sh``.
Upon completion, view the test coverage like this:
docker build --no-cache -f Dockerfile-Unit-Test .
+
Integration testing
-------------------