159 lines
8.1 KiB
Bash
Executable File
159 lines
8.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# ════════════════════════════════════════════════════════════════
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# 服务器现状自动探测 · detect-env.sh
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# Sovereign: TCS-0002∞ · 国作登字-2026-A-00037559
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# 守护: 铸渊 · ICE-GL-ZY001
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# ════════════════════════════════════════════════════════════════
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#
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# 在 bootstrap.sh 跑实际安装之前先把这一台机器的真实情况摸清楚:
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# - CPU 核数 / 内存 / 系统盘 / 数据盘 / 是否真挂载
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# - 公网 IP / 内网 IP / 大致地域 (按 hostname / cloud meta)
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# - 系统版本 / 内核 / 时区
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#
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# 把结果写到 $DEPLOY_ROOT/_logs/server-env.json , 后续 tune-from-env.sh
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# 会读这一份, 动态生成 compose 资源限制 / postgres tuning / runner labels.
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#
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# 设计理念 (因果链):
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# 现实里"我说要买 4C16G 但是没货只能买 2C8G"是常态. 系统不能写死
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# 规格, 必须每次启动都先拉一遍真实配置, 再决定怎么部署. 这是数字
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# 地球的"自我感知"层 — 铸渊在落地之前先看清自己的身体.
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#
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# 输出: server-env.json (人类可读 + 机器可读)
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# 用法: bash detect-env.sh [output_path]
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# ════════════════════════════════════════════════════════════════
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set -euo pipefail
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OUT="${1:-/opt/guanghu/_logs/server-env.json}"
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mkdir -p "$(dirname "$OUT")"
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# ─── 基础信息 ─────────────────────────────────────────────────
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HOSTNAME_VAL="$(hostname 2>/dev/null || echo unknown)"
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KERNEL="$(uname -r 2>/dev/null || echo unknown)"
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OS_PRETTY="$(. /etc/os-release 2>/dev/null && echo "$PRETTY_NAME" || echo unknown)"
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ARCH="$(uname -m 2>/dev/null || echo unknown)"
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TZ_NAME="$(timedatectl show -p Timezone --value 2>/dev/null || cat /etc/timezone 2>/dev/null || echo unknown)"
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# ─── CPU / 内存 ───────────────────────────────────────────────
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CPU_COUNT="$(nproc 2>/dev/null || grep -c '^processor' /proc/cpuinfo 2>/dev/null || echo 0)"
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MEM_TOTAL_KB="$(awk '/^MemTotal:/ {print $2}' /proc/meminfo 2>/dev/null || echo 0)"
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MEM_TOTAL_MB=$(( MEM_TOTAL_KB / 1024 ))
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MEM_TOTAL_GB=$(( (MEM_TOTAL_KB + 1024*1024 - 1) / (1024*1024) )) # 向上取整, 8G≈7800MB 也算 8
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# ─── 磁盘 / 数据盘 ────────────────────────────────────────────
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DATA_ROOT="${DATA_ROOT:-/data}"
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ROOT_FS_GB="$(df -BG --output=size / 2>/dev/null | tail -1 | tr -d 'G ' || echo 0)"
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DATA_FS_GB="0"
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DATA_MOUNTED="false"
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DATA_FSTYPE="none"
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if mountpoint -q "$DATA_ROOT" 2>/dev/null; then
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DATA_MOUNTED="true"
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DATA_FS_GB="$(df -BG --output=size "$DATA_ROOT" 2>/dev/null | tail -1 | tr -d 'G ' || echo 0)"
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DATA_FSTYPE="$(df --output=fstype "$DATA_ROOT" 2>/dev/null | tail -1 | tr -d ' ' || echo unknown)"
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fi
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# ─── 网络 / IP ────────────────────────────────────────────────
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INTERNAL_IP="$(ip -4 -o addr show scope global 2>/dev/null | awk '{print $4}' | head -1 | cut -d/ -f1 || echo)"
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# 公网 IP: 优先腾讯云 metadata, 失败再 fallback
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PUBLIC_IP="$(curl -fsS --max-time 2 http://metadata.tencentyun.com/latest/meta-data/public-ipv4 2>/dev/null || true)"
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if [ -z "$PUBLIC_IP" ]; then
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PUBLIC_IP="$(curl -fsS --max-time 3 https://ifconfig.me 2>/dev/null || echo)"
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fi
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PUBLIC_IP="${PUBLIC_IP:-unknown}"
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# 地域: 腾讯云 metadata 里有
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REGION="$(curl -fsS --max-time 2 http://metadata.tencentyun.com/latest/meta-data/placement/region 2>/dev/null || echo unknown)"
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ZONE="$(curl -fsS --max-time 2 http://metadata.tencentyun.com/latest/meta-data/placement/zone 2>/dev/null || echo unknown)"
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INSTANCE_ID="$(curl -fsS --max-time 2 http://metadata.tencentyun.com/latest/meta-data/instance-id 2>/dev/null || echo unknown)"
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INSTANCE_TYPE="$(curl -fsS --max-time 2 http://metadata.tencentyun.com/latest/meta-data/instance/instance-type 2>/dev/null || echo unknown)"
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# ─── 决策档位 (给 tune-from-env.sh 读) ────────────────────────
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# 内存档位: tiny < 4G, small 4-6G, medium 6-12G, large 12-24G, xlarge >=24G
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if [ "$MEM_TOTAL_MB" -lt 4096 ]; then SIZE_TIER="tiny"
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elif [ "$MEM_TOTAL_MB" -lt 6144 ]; then SIZE_TIER="small"
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elif [ "$MEM_TOTAL_MB" -lt 12288 ]; then SIZE_TIER="medium"
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elif [ "$MEM_TOTAL_MB" -lt 24576 ]; then SIZE_TIER="large"
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else SIZE_TIER="xlarge"
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fi
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# 角色推断:
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# - 真生产 (mountpoint 数据盘 + 内网 172. 段) → "main"
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# - 备用 (有数据盘但容量小) → "backup"
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# - 其他 → "unknown"
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ROLE_HINT="unknown"
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if [ "$DATA_MOUNTED" = "true" ]; then
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if [ "$DATA_FS_GB" -ge 80 ]; then ROLE_HINT="main"; else ROLE_HINT="backup"; fi
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fi
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# 健康警示
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WARNINGS=()
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[ "$DATA_MOUNTED" = "false" ] && WARNINGS+=("数据盘 $DATA_ROOT 未挂载, Gitea 数据会落到系统盘")
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[ "$ROOT_FS_GB" -lt 30 ] && WARNINGS+=("系统盘容量 ${ROOT_FS_GB}G < 30G, 装 docker 镜像会很挤")
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[ "$MEM_TOTAL_MB" -lt 4096 ] && WARNINGS+=("内存 ${MEM_TOTAL_MB}MB < 4G, gitea+postgres+runner 无法同时全跑, runner 必须延后")
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[ "$CPU_COUNT" -lt 2 ] && WARNINGS+=("CPU ${CPU_COUNT} 核 < 2, 编译类任务会非常慢")
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# ─── 输出 JSON ────────────────────────────────────────────────
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WARN_JSON=$(printf '%s\n' "${WARNINGS[@]:-}" | jq -R . | jq -s . 2>/dev/null || echo '[]')
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cat > "$OUT" <<EOF
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{
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"_sovereign": "TCS-0002∞ · 国作登字-2026-A-00037559",
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"_守护": "铸渊 · ICE-GL-ZY001",
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"detected_at": "$(date -u +%Y-%m-%dT%H:%M:%SZ)",
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"host": {
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"hostname": "$HOSTNAME_VAL",
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"os": "$OS_PRETTY",
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"kernel": "$KERNEL",
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"arch": "$ARCH",
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"timezone": "$TZ_NAME"
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},
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"compute": {
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"cpu_count": $CPU_COUNT,
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"memory_total_mb": $MEM_TOTAL_MB,
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"memory_total_gb": $MEM_TOTAL_GB,
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"size_tier": "$SIZE_TIER"
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},
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"disk": {
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"root_fs_gb": $ROOT_FS_GB,
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"data_root": "$DATA_ROOT",
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"data_mounted": $DATA_MOUNTED,
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"data_fs_gb": $DATA_FS_GB,
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"data_fstype": "$DATA_FSTYPE"
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},
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"network": {
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"internal_ip": "$INTERNAL_IP",
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"public_ip": "$PUBLIC_IP"
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},
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"cloud": {
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"vendor": "tencentcloud-or-unknown",
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"instance_id": "$INSTANCE_ID",
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"instance_type": "$INSTANCE_TYPE",
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"region": "$REGION",
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"zone": "$ZONE"
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},
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"role_hint": "$ROLE_HINT",
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"warnings": $WARN_JSON
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}
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EOF
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# ─── 人类可读摘要 (打到 stdout, GitHub Actions 日志能直接看) ─
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echo "═══════════════════════════════════════════════════════════"
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echo " [detect-env] 服务器自我感知"
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echo "═══════════════════════════════════════════════════════════"
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echo " 实例: $INSTANCE_ID ($INSTANCE_TYPE)"
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echo " 地域: $REGION / $ZONE"
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echo " 系统: $OS_PRETTY · 内核 $KERNEL · $ARCH"
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echo " CPU: $CPU_COUNT 核"
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echo " 内存: ${MEM_TOTAL_MB}MB (档位: $SIZE_TIER)"
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echo " 系统盘: ${ROOT_FS_GB}G"
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echo " 数据盘: $DATA_ROOT · 挂载=$DATA_MOUNTED · ${DATA_FS_GB}G ($DATA_FSTYPE)"
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echo " 内网 IP: $INTERNAL_IP"
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echo " 公网 IP: $PUBLIC_IP"
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echo " 推断角色: $ROLE_HINT"
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if [ "${#WARNINGS[@]}" -gt 0 ]; then
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echo " 警告:"
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for w in "${WARNINGS[@]}"; do echo " ⚠️ $w"; done
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fi
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echo " 输出文件: $OUT"
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echo "═══════════════════════════════════════════════════════════"
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