Jared Vititoe b80fda7cb2 Fix host filtering: only show/monitor configured hosts; add PBS ...

- _collect_snapshot() and _process_interfaces() now skip any Prometheus
  instance not explicitly listed in config.json hosts[]. LXC app servers
  (postgresql, matrix, etc.) report node_exporter metrics but are not
  infrastructure hosts Gandalf should display or alert on.
- Add PBS (10.10.10.3) to config hosts[] with prometheus_instance;
  remove from ping_hosts (node_exporter already running on PBS, now
  added to Prometheus scrape config as job pbs-node).
- The _instance_map membership check is now consistent across snapshot,
  alerting, and ethtool SSH collection.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-03-17 17:17:40 -04:00

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