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>
41 lines
1,009 B
Elixir
41 lines
1,009 B
Elixir
defmodule Aprsme.Cluster.PacketReceiver do
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@moduledoc """
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Receives distributed packets from the cluster leader on non-leader nodes.
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Ensures all nodes can serve real-time updates even though only the leader
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processes APRS packets.
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"""
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use GenServer
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alias Aprsme.Cluster.PacketDistributor
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require Logger
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def start_link(opts) do
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GenServer.start_link(__MODULE__, opts, name: __MODULE__)
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end
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@impl true
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def init(_opts) do
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# Subscribe to distributed packets
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PacketDistributor.subscribe()
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Logger.info("Started packet receiver on node #{node()}")
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{:ok, %{}}
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end
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@impl true
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def handle_info({:distributed_packet, packet}, state) do
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# Only process if we're not the leader (leader already processed locally)
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if !Aprsme.Cluster.LeaderElection.is_leader?() do
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PacketDistributor.handle_distributed_packet({:distributed_packet, packet})
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end
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{:noreply, state}
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end
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@impl true
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def handle_info(_msg, state) do
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{:noreply, state}
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end
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end
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