初始化提交

linux开机启动脚本/ELK.sh

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+#!/bin/bash
+LOG_FILE="/var/log/startup_script.log"
+
+# 记录日志的函数
+log() {
+    echo "$(date '+%Y-%m-%d %H:%M:%S') [INFO] $1" | tee -a $LOG_FILE
+}
+
+error_log() {
+    echo "$(date '+%Y-%m-%d %H:%M:%S') [ERROR] $1" | tee -a $LOG_FILE
+}
+
+log "====== 启动初始化脚本 ======"
+
+### 🔹 **防火墙检查**
+log "检查防火墙状态..."
+if systemctl is-active --quiet firewalld; then
+    log "firewalld 已启用，正在关闭..."
+    if systemctl stop firewalld && systemctl disable firewalld; then
+        log "firewalld 关闭成功"
+    else
+        error_log "firewalld 关闭失败，请手动检查！"
+    fi
+else
+    log "firewalld 已经是关闭状态"
+fi
+log "✅ 防火墙任务完成"
+
+### 🔹 **OpenVPN 连接检查**
+VPN_INTERFACE="tun0"
+TARGET_IP="192.168.60.21"
+VPN_SERVICE="openvpn-client@elk.service"
+
+log "检查 OpenVPN 连接状态..."
+if systemctl is-active --quiet $VPN_SERVICE; then
+    log "OpenVPN ($VPN_SERVICE) 运行中"
+else
+    log "OpenVPN ($VPN_SERVICE) 未运行，尝试启动..."
+    systemctl start $VPN_SERVICE
+    sleep 5
+fi
+
+VPN_IP=$(ip -4 addr show $VPN_INTERFACE | grep -oP '(?<=inet\s)\d+(\.\d+){3}' || echo "NONE")
+if [[ "$VPN_IP" == "$TARGET_IP" ]]; then
+    log "VPN 连接正常，IP: $VPN_IP"
+else
+    error_log "未获取到目标 IP ($TARGET_IP)，尝试重启 VPN..."
+    systemctl restart $VPN_SERVICE
+    sleep 5
+    VPN_IP=$(ip -4 addr show $VPN_INTERFACE | grep -oP '(?<=inet\s)\d+(\.\d+){3}' || echo "NONE")
+    if [[ "$VPN_IP" == "$TARGET_IP" ]]; then
+        log "VPN 重启成功，IP: $VPN_IP"
+    else
+        error_log "VPN 重启后仍未获取目标 IP，请检查 VPN 配置！"
+    fi
+fi
+log "✅ OpenVPN 连接检查完成"
+
+### 🔹 **Elasticsearch 进程检查**
+ES_USER="user"
+ES_HOME="/data/elasticsearch-8.17.0/bin"
+
+log "检查 Elasticsearch 进程..."
+if pgrep -f "org.elasticsearch.bootstrap.Elasticsearch"; then
+    log "Elasticsearch 运行正常"
+else
+    error_log "Elasticsearch 未运行，尝试以 $ES_USER 用户启动..."
+    sudo -u $ES_USER nohup $ES_HOME/elasticsearch > /var/log/elasticsearch.log 2>&1 &
+    log "Elasticsearch 启动命令已执行"
+fi
+log "✅ Elasticsearch 进程检查完成"
+
+### 🔹 **Kibana 进程检查**
+KIBANA_USER="user"
+KIBANA_HOME="/data/kibana-8.17.0/bin"
+
+log "检查 Kibana 进程..."
+if pgrep -x "node" -a | grep -q "kibana"; then
+    log "Kibana 运行正常"
+else
+    error_log "Kibana 未运行，尝试以 $KIBANA_USER 用户启动..."
+    sudo -u $KIBANA_USER nohup $KIBANA_HOME/kibana > /var/log/kibana.log 2>&1 &
+    log "Kibana 启动命令已执行"
+fi
+log "✅ Kibana 进程检查完成"
+
+log "====== 启动初始化脚本完成 ======"