Docker deployment management of Processing Broker

[tdoan2010]

The processing broker parses the configuration file and deploys necessary components (processors or a queuing system). The deployment of the processors is made via Docker.

This feature can be implemented in the following steps:

1. Connect to the Docker socket of the specified machine via ssh.
2. Pull the latest ocrd-all image.
3. Start the processing server container in the background.
4. Shutdown the container later.

To start the processing broker, the CLI syntax would be:

$ ocrd processing-broker <path-to-config-file>

[tdoan2010]

• To work with docker in Python, use Docker SDK for Python
• To connect to another Docker socket via ssh, check this post
• $DOCKER_HOST might need to be set on the target machine as stated in this article. I would recommend trying first without setting anything. If it doesn't work, set the $DOCKER_HOST.