Quasar

How paper is printed at SCE.

Running the project (development)

Clone the SCE dev tool and follow the guide for setup: https://github.com/SCE-Development/SCE-CLI#setup

sce clone q

cd Quasar

sce link q

• Make a copy of config/config.example.json to config/config.json
• fill out config/config.json with the appropriate values:

{
    "HEALTH_CHECK": {
        "CORE_V4_IP": "this is an ip address, i.e. 127.0.0.1"
    },
    "PRINTING": {
        "LEFT": {
            "ENABLED": true,
            "NAME": "name of left printer in sce",
            "IP": "ip address of the left printer in sce",
            "LPD_URL": "lpd://<ip address of left printer>"
        },
        "RIGHT": {
            "ENABLED": true,
            "NAME": "name of right printer in sce",
            "IP": "ip address of the right printer in sce",
            "LPD_URL": "lpd://<ip address of right printer>"
        }
    }
}

• Run the project with sce run q. The server will run and accept requests on http://localhost:14000.
• to verify the files are making it to the server, comment out the line using unlink in server.py. Data recieved is written to the tmp folder within this project.

Running the project (production)

Generating SSH Keys for tunnel

Note: This is for deploying production Quasar only!

• Follow this guide to generate ssh keys on your machine
• Ensure the keys were outputted to files containing id_ed25519
• docker-compose up, the generated keys will be mounted in the health check container

Modifying the config.json

• make sure to set the ENABLED field to true for the printer you wish to print at
• ensure the IP and LPD_URL field are using the same IP address of the corresponding printer
• the NAME field can be whatever you want, i.e. right-printer. It's for the lp command to use in sending the print request

its go time

• just run docker-compose up --build -d
• the logs of the server can be observed with docker logs sce-printer --tail 300 -f