#!/bin/bash
# Генерация конфигурации демона hcd из topology.env — единственного источника
# правды по адресам стенда. Пока пул задан статически; на следующем шаге его
# место займёт модель Load_Balancer -> Listener -> Pool -> Member в OVSDB.
set -euo pipefail

LB_DIR=/opt/lb
# shellcheck disable=SC1091
source "$LB_DIR/topology.env"

OUT=${1:-/var/run/openvswitch/hc.json}

cat > "$OUT" <<EOF
{
  "bridge": "$BR",
  "of_version": "$OF",
  "pool_id": $POOL_ID,
  "slots": $SLOTS,
  "slot_table": 11,
  "dnat_table": 12,
  "probe": "$HC_PROBE",
  "http_path": "$HC_HTTP_PATH",
  "interval": "$HC_INTERVAL",
  "timeout": "$HC_TIMEOUT",
  "rise": $HC_RISE,
  "fall": $HC_FALL,
  "api": "$HC_API",
  "apply_script": "$LB_DIR/apply.sh",
  "members": [
    {
      "id": 1,
      "name": "be1",
      "address": "$BE1_IP",
      "port": $BE1_PORT,
      "weight": 1,
      "source": "$HC2_IP"
    },
    {
      "id": 2,
      "name": "be2",
      "address": "$BE2_IP",
      "port": $BE2_PORT,
      "weight": 1,
      "source": "$HC3_IP"
    },
    {
      "id": 3,
      "name": "be3",
      "address": "$BE3_IP",
      "port": $BE3_PORT,
      "weight": 1,
      "source": "$HC2_IP"
    },
    {
      "id": 4,
      "name": "be4",
      "address": "$BE4_IP",
      "port": $BE4_PORT,
      "weight": 1,
      "source": "$HC3_IP"
    }
  ]
}
EOF

echo "$OUT"