restic-compose-backup/restic_volume_backup/config.py

import os


class Config:
    def __init__(self):
        self.repository = os.environ['RESTIC_REPOSITORY']
        self.password = os.environ['RESTIC_PASSWORD']
        self.docker_base_url = os.environ.get('DOCKER_BASE_URL') or "unix://tmp/docker.sock"
        self.check()

    def check(self):
        if not self.repository:
            raise ValueError("CONTAINER env var not set")

        if not self.password:
            raise ValueError("PASSWORD env var not set")