Macula Static Cluster Strategy.

A simple cluster formation strategy that connects to a predefined list of nodes. Equivalent to libcluster's Cluster.Strategy.Epmd.

Configuration

Start with a list of nodes to connect to:

   {ok, _Pid} = macula_cluster_static:start_link(#{
       nodes => ['node1@host1', 'node2@host2', 'node3@host3'],
       reconnect_interval => 5000  %% ms, default 5000
   }).

Or from environment variables:

   %% CLUSTER_NODES=node1@host1,node2@host2,node3@host3
   {ok, _Pid} = macula_cluster_static:start_link(#{}).

Behavior

- Attempts to connect to all configured nodes on startup - Monitors connected nodes for disconnect events - Automatically reconnects to disconnected nodes - Ignores self-connection attempts - Logs connection/disconnection events

Callbacks

Register a callback module to receive cluster events:

   {ok, _Pid} = macula_cluster_static:start_link(#{
       nodes => [...],
       callback => self()  %% PID or {Module, Function}
   }).
   %% Receives: {macula_cluster, nodeup, Node}
   %% Receives: {macula_cluster, nodedown, Node}