[Unit]
Description=HAproxy Loadbalancer
After=network-online.target
Wants=network-online.target systemd-networkd-wait-online.service

[Service]
Type=notify
KillMode=mixed
PIDFile=/run/haproxy/haproxy.pid
SuccessExitStatus=143

# User and group
User=haproxy
Group=haproxy

# Environment files
EnvironmentFile=-/etc/sysconfig/haproxy

# Exec start
ExecStartPre=/usr/sbin/haproxy-check
ExecStart=/usr/sbin/haproxy -f ${CONFIG} -Ws
ExecReload=/usr/sbin/haproxy-check
ExecReload=/bin/kill -USR2 ${MAINPID}

# Automatic restart
Restart=always
Restart=on-failure
RestartSec=5s

# Allow bind to privileged ports ( < 1024 )
AmbientCapabilities=CAP_NET_BIND_SERVICE

# Allow more open files for this process
LimitNOFILE=65000
LimitNPROC=65000

# Log to file
StandardOutput=append:/var/log/haproxy/access.log
StandardError=append:/var/log/haproxy/error.log

# More threads for this process
TasksMax=65000

[Install]
WantedBy=multi-user.target
Alias=multi-user.target.wants/haproxy.service