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PBFT

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Node configuration

This offers different ways to load configuration and information about the other nodes.

It will try to load the information in the following order:

  1. Configuration file
  2. Docker & Environment variables
  3. Dummy Configuration

The detection is made in class DockerusAuto.

Docker & Environment variables

If this is launched via docker-compose, and is multiplied using scale, it will already grab all needed info from docker, and the following Environment variables

  • HOSTNAME own host name (should be given from the system)
  • API_HOST where the api node is. Example: http://localhost:8080/api
  • SENSOR_SIMULATE set to 1 to enable reading from the DS1820 sensor (tested on Raspberry Pi)

This happens in the class Dockerus.

Configuration file

If you specify a config.json file however, that one will be used:

{
    "node_hosts": ["192.168.2.8", "192.168.2.9", "192.168.2.10", "192.168.2.11"],
    "own_host": "192.168.2.8",  # If not given: Falls back to the local socket ip address, which might be wrong!
    "api_host": "http://example.com/"  # If you have this entry, it overwrites $API_HOST env variable.  Or set to null, to disable.
    "sensor_simulate": false  # If you have this entry, it overwrites $SENSOR_SIMULATE env variable.
}

This is handled in the class DockerusFile.

Dummy Configuration

It is not possible to use the PBFT algorithm with this. This is the fallback so unit tests can still be executed. See the class DockerusDummy.

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