Improved docker-compose.yaml

[rselph]

This docker-compose file offers a few advantages:

• Doesn't use host network. This is a security improvement, and means that neither the redis port nor the zmq port need to be made public.
• Persists redis data. This also prevents the redis container from creating an anonymous volume each time it is created.
• Persists ntopng data
• Sets timezone for ntopng
• Expands local network definition
• Enables DNS lookups

[synfinatic]

@rselph can you sign your commits? probably easiest to rebase into a single commit and sign that.

[Copilot]

Pull request overview

This PR updates the docker-compose.yaml setup to run netflow2ng, redis, and ntopng on a default bridged network (instead of host networking), while adding persistence and refining ntopng configuration.

Changes:

• Replace network_mode: host with explicit port publishing for NetFlow (and ntopng UI) and internal service-to-service networking.
• Persist Redis and ntopng state using named volumes.
• Update ntopng runtime configuration (redis host, local networks, DNS mode, timezone).

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (28fee3f) to head (3b89d18).

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #149   +/-   ##
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  Coverage   0.00%   0.00%           
=====================================
  Files          7       7           
  Lines        656     656           
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  Misses       656     656           

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