snapshot of https://github.com/centrifugal/centrifugo.git (master, 2026-09-16; blobs > 131072B omitted)

misc/nats_cluster/create_cluster.sh

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+#!/bin/bash
+
+# Function to check if a NATS node is up
+wait_for_nats() {
+  local port=$1
+  while ! nc -z localhost "$port" > /dev/null 2>&1; do
+    echo "Waiting for NATS node on port $port to start..."
+    sleep 1
+  done
+  echo "NATS node on port $port is available."
+}
+
+# Array to hold PIDs of NATS server processes
+declare -a nats_pids
+
+# Function to start NATS cluster nodes
+start_nats_cluster() {
+  local nodes=$1
+  local base_port=4222
+  local cluster_port_base=5222
+  local log_dir="./nats_logs"
+  local cluster_nodes=()
+
+  # Create log directory, clean previous
+  rm -rf "$log_dir"
+  mkdir -p "$log_dir"
+
+  # Start NATS nodes
+  for ((i=0; i<nodes; i++)); do
+    local port=$((base_port + i))
+    local cluster_port=$((cluster_port_base + i))
+    local log_file="$log_dir/nats_node_${port}.log"
+
+    # Start a NATS server
+    nats-server --port "$port" --config server.conf --cluster nats://localhost:"$cluster_port" \
+                --routes nats://localhost:"$cluster_port_base" \
+                > "$log_file" 2>&1 &
+    nats_pids[i]=$!
+    cluster_nodes+=("localhost:$port")
+  done
+
+  # Wait for all nodes to become available
+  for port in "${cluster_nodes[@]}"; do
+    wait_for_nats "${port##*:}"
+  done
+}
+
+# Function to shut down NATS cluster nodes
+shutdown_nats_cluster() {
+  echo "Shutting down NATS cluster nodes..."
+  for pid in "${nats_pids[@]}"; do
+    kill "$pid"
+  done
+}
+
+# Trap Ctrl+C (SIGINT) to call shutdown function
+trap shutdown_nats_cluster SIGINT
+
+# Check if the number of nodes is provided
+if [ -z "$1" ]; then
+  echo "Usage: $0 <number_of_nodes>"
+  exit 1
+fi
+
+# Start the NATS cluster
+start_nats_cluster "$1"
+
+# Wait until a keyboard interrupt (Ctrl+C) is detected
+echo "NATS cluster is running. Press Ctrl+C to stop."
+wait

misc/nats_cluster/server.conf

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+accounts: {
+    $SYS: {
+        users: [
+            {user: admin, password: password}
+        ]
+    }
+}