new changes

scripts/ensure-env-ports.sh

@@ -0,0 +1,78 @@
+#!/usr/bin/env bash
+# Remap host ports in .env when they are already bound (e.g. system Redis on 6379).
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+ENV_FILE="${ROOT}/.env"
+
+[[ -f "$ENV_FILE" ]] || exit 0
+
+# Do not rewrite .env while the dev stack is already running: published ports would
+# appear "in use" but belong to our own containers.
+if command -v docker >/dev/null 2>&1 && docker info >/dev/null 2>&1; then
+  if docker ps --format '{{.Names}}' 2>/dev/null | grep -qE '^yakpanel-(redis|postgres|api|nats|minio|agent-gateway)$'; then
+    exit 0
+  fi
+fi
+
+port_listening() {
+  local port="$1"
+  if command -v ss >/dev/null 2>&1; then
+    ss -tuln 2>/dev/null | grep -qE ":${port}($|[[:space:]])" && return 0
+  fi
+  if command -v netstat >/dev/null 2>&1; then
+    netstat -tuln 2>/dev/null | grep -qE ":${port}($|[[:space:]])" && return 0
+  fi
+  return 1
+}
+
+get_kv() {
+  grep -E "^${1}=" "$ENV_FILE" 2>/dev/null | tail -1 | cut -d= -f2- | tr -d '\r'
+}
+
+set_kv() {
+  local key="$1" val="$2"
+  if grep -qE "^${key}=" "$ENV_FILE"; then
+    sed -i "s/^${key}=.*/${key}=${val}/" "$ENV_FILE"
+  else
+    echo "${key}=${val}" >> "$ENV_FILE"
+  fi
+}
+
+find_free_port() {
+  local start="$1"
+  local end=$((start + 400))
+  local p
+  for ((p = start; p <= end; p++)); do
+    if ! port_listening "$p"; then
+      echo "$p"
+      return 0
+    fi
+  done
+  echo "$start"
+}
+
+remap_key() {
+  local key="$1"
+  local preferred_alt="$2"
+  local p alt
+  p=$(get_kv "$key")
+  [[ -z "$p" ]] && return 0
+  if ! port_listening "$p"; then
+    return 0
+  fi
+  alt="$preferred_alt"
+  if port_listening "$alt"; then
+    alt=$(find_free_port "$preferred_alt")
+  fi
+  echo "[yakpanel] Host port ${p} (${key}) is already in use; set ${key}=${alt} in .env"
+  set_kv "$key" "$alt"
+}
+
+remap_key REDIS_PORT 16379
+remap_key POSTGRES_PORT 15432
+remap_key API_PORT 18080
+remap_key NATS_PORT 14222
+remap_key NATS_MONITOR_PORT 18222
+remap_key MINIO_PORT 19000
+remap_key MINIO_CONSOLE_PORT 19001