lcmap-pyccd-worker

worker for initiating change detection jobs, and sending results to the data store

Install

  # locally
  $ pip install -e.

Usage

  # lpw-listen is available following install with pip
  $ lpw-listen

  # lpw-test-send will send stdin to the LPW_RABBIT_EXCHANGE
  $ lpw-test-send '{"some":"message"}'

Configuration

landsat-pyccd-worker is configurable with the following environment variables

Variable	Default	Description
`LPW_RABBIT_HOST`	localhost	RabbitMQ Host
`LPW_RABBIT_PORT`	5672	RabbitMQ Port
`LPW_RABBIT_QUEUE`	local.lcmap.pyccd.worker	Queue for LPW to listen for messages
`LPW_RABBIT_EXCHANGE`	local.lcmap.pyccd.worker	Exchange for LPW to publish messages
`LPW_RABBIT_SSL`	False	Enable/Disable SSL. True/False
`LPW_LOG_LEVEL`	INFO	Logging Level. INFO/DEBUG/WARNING/ERROR/CRITICAL
`LPW_QA_BIT_PACKED`	True	QA band is bit packed

Developing & Testing

Get the local environment ready for development and testing.

   $ git clone git@github.com:usgs-eros/lcmap-pyccd-worker
   $ cd lcmap-pyccd-worker
   $ git submodule init
   $ git submodule update
   $ virtualenv -p python3 .venv
   $ . .venv/bin/activate
   $ pip install -e .[test]
   $ pip install -e .[dev]

Run tests:

   # in a separate shell
   $ make docker-deps-up-nodaemon
   # export required env variables
   # run pytest
   $ LPW_RABBIT_HOST=localhost LPW_QA_BIT_PACKED=False LPW_RABBIT_EXCHANGE=test.lcmap.changes.worker LPW_RABBIT_QUEUE=test.lcmap.changes.worker LPW_RABBIT_RESULT_ROUTING_KEY=change-detection_result pytest

Deploying

Available from Docker Hub https://hub.docker.com/r/usgseros/lcmap-pyccd-worker/

docker pull usgseros/lcmap-pyccd-worker

Also available from PYPI