Polaris is a Process Orchestration Layer application for controlling process equipment assemblies (PEA) in the context of modular production in process industries. Thus, it follows the VDI/VDE/NAMUR 2658 standards. polaris-backend is a NodeJs application which can be controlled via REST. Furthermore it provides recent state changes via websockets. For testing and debugging purposes, polaris-backend provides also a testserver which behaves like a PEA.
A HTML user interface for this project is provided via the polaris-frontend project.
All dependencies are installed via NPM
npm install
npm run build
npm startor use ready binary (which should also be installed globally and in modules)
./bin/polaris-backend
Available CLI options are provided by:
./bin/polaris-backend -h
Use ready docker image, which are automatically updated during drone.io integration
docker pull p2olab/polaris-backend
docker run -d -p 3000:3000 p2olab/polaris-backend
After starting polaris-backend its REST interface is available under http://localhost:3000
polaris-backend has several command line parameters which are documented by calling npm start -- -h
Its documentation is served by the application under the path /doc (e.g. http://localhost:3000/doc)
Polaris can serve a test PEA with an OPC UA server via port 4334. It has two services with some parameters and some other variables which change over time. You can start this testserver via
npm run testserver
or
./bin/test-pea
or via docker container
docker run -p 4334:4334 p2olab/test-pea
The corresponding JSON file assets/modules/module_testserver_1.0.0.json can be directly loaded in Polaris.