简易的 systemd 服务文件创建脚本

#!/bin/bash

# create_haproxy_service.sh
# 创建 systemd 服务文件

SERVICE_FILE="/etc/systemd/system/haproxy.service"

cat > $SERVICE_FILE << 'EOF'
[Unit]
Description=HAProxy Load Balancer
Documentation=man:haproxy(1)
After=network.target

[Service]
Environment="CONFIG=/etc/haproxy/haproxy.cfg"
Environment="PIDFILE=/var/run/haproxy.pid"
ExecStartPre=/usr/sbin/haproxy -f $CONFIG -c -q
ExecStart=/usr/sbin/haproxy  -f $CONFIG -p $PIDFILE
ExecReload=/usr/sbin/haproxy -f $CONFIG -c -q
ExecReload=/bin/kill -USR2 $MAINPID
KillMode=mixed
Restart=always
RestartSec=2
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target
EOF

echo "HAProxy service file created at $SERVICE_FILE"
echo "Reloading systemd..."
systemctl daemon-reload
echo "Enabling HAProxy service..."
systemctl enable haproxy
echo "Starting HAProxy..."
systemctl start haproxy