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[K3D/K3S] Dynamically egress k3d harmony server IP range #108

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opened 2025-08-14 19:25:25 +00:00 by letian · 0 comments
letian commented 2025-08-14 19:25:25 +00:00
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Current behavior

The k3d harmony server is currently hardcoded in the network policy applied in the context of a local K3d installation. Which is fine in most cases, but sometimes docker might change its subnet and it will silently break the configuration (e.g. Grafana will not be able to query its data source for metrics).

Expected behavior

The subnet should be retrieved dynamically to apply the proper network policy with a local k3d installation. For example, we could use k3d cluster list -o json|yaml and retrieve k3d.cluster.network.iprange, or directly with docker network inspect k3d-harmony.

## Current behavior The k3d harmony server is currently hardcoded in the network policy applied in the context of a local K3d installation. Which is fine in most cases, but sometimes docker might change its subnet and it will silently break the configuration (e.g. Grafana will not be able to query its data source for metrics). ## Expected behavior The subnet should be retrieved dynamically to apply the proper network policy with a local k3d installation. For example, we could use `k3d cluster list -o json|yaml` and retrieve `k3d.cluster.network.iprange`, or directly with `docker network inspect k3d-harmony`.
letian changed title from [K3D/K3S] Dynamically egress k3d harmony server IP to [K3D/K3S] Dynamically egress k3d harmony server IP range 2025-08-14 20:25:15 +00:00
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 label 2025-08-14 20:25:25 +00:00
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Reference: NationTech/harmony#108
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