feat: agent distribution via AIOps backend + install script

- Serve agent binaries from /agent/aiops-agent-linux-{amd64,arm64}
- One-line install: curl -fsSL http://server:8080/agent/install.sh | bash
- Auto-detects arch (x86_64/aarch64), creates systemd service
- GET /agent/arch returns version + download URLs

Signed-off-by: Logan.Li

backend/agent/deploy/install.sh

@@ -0,0 +1,135 @@
+#!/bin/bash
+# AIOps Agent 一键安装脚本 — 支持 RHEL/CentOS/Rocky/Alma/Amazon/Aliyun/Debian/Ubuntu 全系列
+# 用法: curl -fsSL http://YOUR_SERVER/agent/install.sh | bash -s -- --server http://YOUR_SERVER:8080 --token TOKEN
+# 署名 Logan.Li
+
+set -e
+
+# 默认参数
+AIOPS_SERVER=""
+AGENT_TOKEN=""
+INSTALL_DIR="/usr/local/bin"
+SERVICE_NAME="aiops-agent"
+ARCH=$(uname -m)
+OS=$(cat /etc/os-release 2>/dev/null | grep '^ID=' | cut -d'"' -f2 || echo "unknown")
+
+# 解析命令行参数
+while [[ $# -gt 0 ]]; do
+    case $1 in
+        --server)  AIOPS_SERVER="$2"; shift 2;;
+        --token)   AGENT_TOKEN="$2"; shift 2;;
+        --version) AGENT_VERSION="$2"; shift 2;;
+        *) echo "未知参数: $1"; exit 1;;
+    esac
+done
+
+AGENT_VERSION="${AGENT_VERSION:-v1.0.0}"
+
+echo ""
+echo "  ╔══════════════════════════════════════════╗"
+echo "  ║        AIOps Agent 一键安装              ║"
+echo "  ╚══════════════════════════════════════════╝"
+echo ""
+echo "  系统:   ${OS} (${ARCH})"
+echo "  版本:   ${AGENT_VERSION}"
+echo "  后端:   ${AIOPS_SERVER:-未指定}"
+echo ""
+
+# 检查 root 权限
+if [ "$EUID" -ne 0 ]; then
+    echo "❌ 请使用 root 用户或 sudo 执行此脚本"
+    exit 1
+fi
+
+# 确定下载架构
+case "$ARCH" in
+    x86_64|amd64)  DOWNLOAD_ARCH="amd64";;
+    aarch64|arm64) DOWNLOAD_ARCH="arm64";;
+    *)
+        echo "❌ 不支持的 CPU 架构: $ARCH (仅支持 x86_64/amd64 和 aarch64/arm64)"
+        exit 1
+        ;;
+esac
+echo "  匹配:   linux/${DOWNLOAD_ARCH}"
+echo ""
+
+# 安装依赖工具（curl 在大多数发行版自带，这里确保有）
+if command -v curl &> /dev/null; then
+    echo "✓ curl 已安装"
+else
+    echo "→ 安装 curl..."
+    if command -v yum &> /dev/null; then
+        yum install -y curl
+    elif command -v dnf &> /dev/null; then
+        dnf install -y curl
+    elif command -v apt-get &> /dev/null; then
+        apt-get update -qq && apt-get install -y curl
+    else
+        echo "❌ 无法确定包管理器，请手动安装 curl"
+        exit 1
+    fi
+fi
+
+# 下载二进制
+if [ -z "$AIOPS_SERVER" ]; then
+    echo "❌ 请通过 --server 指定 AIOps 后端地址"
+    exit 1
+fi
+
+BINARY_URL="${AIOPS_SERVER}/agent/aiops-agent-linux-${DOWNLOAD_ARCH}"
+echo "→ 下载 Agent: ${BINARY_URL}"
+
+curl -fSL -o /tmp/aiops-agent "${BINARY_URL}" || {
+    echo "❌ 下载失败，请检查后端地址和网络"
+    exit 1
+}
+chmod +x /tmp/aiops-agent
+mv /tmp/aiops-agent "${INSTALL_DIR}/aiops-agent"
+
+echo "✓ 安装到 ${INSTALL_DIR}/aiops-agent"
+
+# 配置 systemd 服务
+if [ -z "$AGENT_TOKEN" ]; then
+    echo "⚠ 未提供 --token，使用空令牌"
+    AGENT_TOKEN="none"
+fi
+
+cat > /etc/systemd/system/${SERVICE_NAME}.service << EOF
+[Unit]
+Description=AIOps Monitoring Agent
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+ExecStart=${INSTALL_DIR}/aiops-agent -server ${AIOPS_SERVER} -interval 10 -token ${AGENT_TOKEN}
+Restart=always
+RestartSec=5
+LimitNOFILE=65536
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+echo "✓ 创建 systemd 服务"
+
+# 启动服务
+systemctl daemon-reload
+systemctl enable ${SERVICE_NAME}
+systemctl restart ${SERVICE_NAME}
+
+sleep 2
+
+if systemctl is-active --quiet ${SERVICE_NAME}; then
+    echo ""
+    echo "✅ 安装成功！Agent 已启动并设置为开机自启"
+    echo ""
+    echo "  查看状态: systemctl status ${SERVICE_NAME}"
+    echo "  查看日志: journalctl -u ${SERVICE_NAME} -f"
+    echo "  卸载:     ${0} --uninstall || systemctl stop ${SERVICE_NAME} && rm -f ${INSTALL_DIR}/aiops-agent /etc/systemd/system/${SERVICE_NAME}.service && systemctl daemon-reload"
+    echo ""
+else
+    echo "❌ Agent 启动失败，请检查日志:"
+    echo "  journalctl -u ${SERVICE_NAME} -n 20"
+    exit 1
+fi

backend/internal/api/routes/routes.go

@@ -20,6 +20,22 @@ func Register(r *gin.Engine, db *gorm.DB, log *zap.Logger, cfg *config.Config) {
 		c.JSON(200, gin.H{"status": "ok"})
 	})
 
+	// Agent 二进制下载 + 一键安装脚本（无需鉴权，方便 curl|bash）
+	r.Static("/agent/bin", "./agent/bin")
+	r.StaticFile("/agent/install.sh", "./agent/deploy/install.sh")
+	r.StaticFile("/agent/aiops-agent-linux-amd64", "./agent/bin/aiops-agent-linux-amd64")
+	r.StaticFile("/agent/aiops-agent-linux-arm64", "./agent/bin/aiops-agent-linux-arm64")
+	r.GET("/agent/arch", func(c *gin.Context) {
+		c.JSON(200, gin.H{
+			"version": "1.0.0",
+			"downloads": gin.H{
+				"amd64": "/agent/aiops-agent-linux-amd64",
+				"arm64": "/agent/aiops-agent-linux-arm64",
+			},
+			"install": "curl -fsSL http://<server>:8080/agent/install.sh | bash -s -- --server http://<server>:8080 --token <token>",
+		})
+	})
+
 	// WebSocket终端 (token via query param)
 	webShellHandler := handlers.NewWebShellHandler(db)
 	r.GET("/ws/terminal", webShellHandler.Terminal)