Your Name
5590391779
Agent (agent.py): - Rebrand MultiSync → Nexus throughout - Add server_id to heartbeat payload (required by backend AgentHeartbeat schema) - Add /exec endpoint for remote command execution via Nexus - Update heartbeat fields to match backend: cpu_usage, mem_usage, disk_usage - Use 60s default interval (matches CLAUDE.md spec) Agent (agent.sh): - Rebrand, add SERVER_ID env var, send in heartbeat payload - Update service name to nexus-agent Agent (install.sh): - Rebrand, add --id parameter for server_id - Write server_id to config.json - Service name: nexus-agent - Add config.example.json for reference SyncEngineV2: - Add trigger_type parameter to sync_files() (was hardcoded "manual") - Schedule/retry runners can now pass "schedule"/"retry" trigger types Nginx: - Add /agent/ to static asset locations for agent file downloads Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
99 lines
3.3 KiB
Bash
99 lines
3.3 KiB
Bash
#!/bin/bash
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# ================================================================
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# Nexus Shell Agent — 心跳 + 健康接口
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# 依赖: bash, curl
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# ================================================================
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HEARTBEAT_INTERVAL="${HEARTBEAT_INTERVAL:-60}"
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LOG_FILE="${LOG_FILE:-/var/log/nexus-agent.log}"
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CENTRAL_URL="${CENTRAL_URL:-}"
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CENTRAL_API_KEY="${CENTRAL_API_KEY:-}"
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SERVER_ID="${SERVER_ID:-0}"
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AGENT_PORT="${AGENT_PORT:-8601}"
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log() {
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local ts=$(date '+%Y-%m-%d %H:%M:%S')
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echo "${ts} [$1] $2" >> "$LOG_FILE" 2>/dev/null
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echo "${ts} [$1] $2"
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}
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check_deps() {
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if ! command -v curl >/dev/null 2>&1; then
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log "ERROR" "缺少 curl，请安装: apt install curl"
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exit 1
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fi
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}
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get_system_info() {
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local hn=$(hostname 2>/dev/null)
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local load=$(awk '{print $1}' /proc/loadavg 2>/dev/null)
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local mem_total=$(awk '/Mem:/{print $2}' /proc/meminfo 2>/dev/null)
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local mem_avail=$(awk '/MemAvailable:/{print $2}' /proc/meminfo 2>/dev/null)
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local disk_pct=$(df / 2>/dev/null | awk 'NR==2{print $5}' | tr -d '%')
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echo "{\"hostname\":\"${hn}\",\"load\":\"${load}\",\"mem_kb\":${mem_total:-0},\"mem_avail_kb\":${mem_avail:-0},\"disk_pct\":${disk_pct:-0}}"
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}
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heartbeat_loop() {
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while true; do
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local info=$(get_system_info)
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curl -s -o /dev/null -X POST -H "Content-Type: application/json" \
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-H "X-API-Key: ${CENTRAL_API_KEY}" \
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-d "{\"server_id\":${SERVER_ID},\"is_online\":true,\"system_info\":${info}}" \
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"${CENTRAL_URL}/api/agent/heartbeat" 2>/dev/null
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if [ $? -eq 0 ]; then
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log "INFO" "心跳 OK"
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else
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log "WARN" "心跳失败: ${CENTRAL_URL}"
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fi
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sleep "$HEARTBEAT_INTERVAL"
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done
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}
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health_server() {
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while true; do
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if command -v nc >/dev/null 2>&1; then
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printf "HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nConnection: close\r\n\r\n{\"status\":\"healthy\",\"agent\":\"nexus-shell\"}" \
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| nc -l -p "${AGENT_PORT}" -q 1 2>/dev/null
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else
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exec 3<>/dev/tcp/0.0.0.0/${AGENT_PORT} 2>/dev/null && {
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printf "HTTP/1.1 200 OK\r\nContent-Type: application/json\r\nConnection: close\r\n\r\n{\"status\":\"healthy\"}" >&3
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exec 3>&-
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} || sleep 1
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fi
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done
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}
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cleanup() {
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log "INFO" "正在停止..."
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for pid in "${PIDS[@]}"; do kill "$pid" 2>/dev/null; done
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}
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trap cleanup SIGINT SIGTERM
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main() {
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echo "=========================================="
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echo " Nexus Shell Agent — 心跳上报"
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echo "=========================================="
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check_deps
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log "INFO" "中央服务器: ${CENTRAL_URL}"
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log "INFO" "服务器ID: ${SERVER_ID}"
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log "INFO" "心跳间隔: ${HEARTBEAT_INTERVAL}秒"
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heartbeat_loop &
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PIDS+=($!)
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log "INFO" "心跳服务已启动"
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health_server &
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PIDS+=($!)
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log "INFO" "健康接口: http://0.0.0.0:${AGENT_PORT}/health"
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log "INFO" "Agent 已启动，按 Ctrl+C 停止"
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wait
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}
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case "${1:-}" in
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stop) systemctl stop nexus-agent; echo "已停止" ;;
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restart) systemctl restart nexus-agent; echo "已重启" ;;
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status) systemctl status nexus-agent --no-pager 2>/dev/null || echo "未运行" ;;
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log|logs) journalctl -u nexus-agent -f --no-pager ;;
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*) main ;;
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esac
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