Graham McIntire
4804bd16be
Implement leader election to ensure only one APRS-IS connection across multiple Kubernetes replicas. This prevents duplicate packet processing and respects APRS-IS usage policies. Key changes: - Add leader election using :global registry - Create connection manager for dynamic APRS-IS management - Implement packet distribution from leader to all nodes - Add Kubernetes headless service for node discovery - Configure DNS-based clustering with libcluster - Update deployment to support 3 replicas with clustering 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
43 lines
945 B
Elixir
43 lines
945 B
Elixir
defmodule Aprsme.Cluster.Topology do
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@moduledoc """
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Cluster topology configuration for different environments.
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"""
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def child_spec(opts) do
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cluster_config = config()
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if cluster_config do
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{Cluster.Supervisor, [cluster_config, opts]}
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else
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# Return a no-op spec when clustering is disabled
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%{
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id: __MODULE__,
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start: {__MODULE__, :start_link, [opts]},
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type: :worker
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}
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end
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end
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def start_link(_opts), do: :ignore
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defp config do
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if Application.get_env(:aprsme, :cluster_enabled, false) do
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kubernetes_config()
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end
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end
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defp kubernetes_config do
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[
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kubernetes: [
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strategy: Cluster.Strategy.Kubernetes,
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config: [
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mode: :dns,
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kubernetes_node_basename: "aprs",
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kubernetes_selector: "app=aprs",
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kubernetes_namespace: "aprs",
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polling_interval: 10_000
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]
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]
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]
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end
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end
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