Trigger backups based on syslog messages

[leoluk]

Trigger backups by monitoring syslog streams for messages that indicate that a change has been made. This would allow for less frequent scheduled runs and would result in a much lower latency.

This also means that we could automatically correlate the user who made the change.

Backends should be modular. Initial considerations:

• Kafka
• Syslog (TCP, UDP)
• Elasticsearch (polling)