1 、重新加载所有服务配置 如下命令:
# 只要有.service 服务配置更新, 必须执行改命令才会生效 $ systemctl daemon-reload # 如果执行 systemctl daemon-reload 此命令 直接 sudo systemctl start application-alias.service 会报如下错误 # Warning: The unit file, source configuration file or drop-ins of gunicorn.service changed on disk. Run systemctl daemon-reload to reload units.
2 、启动服务、赞同服务、重启服务、查看服务运行状态
# 服务状态或者查看日志等 $ sudo systemctl status application-alias.service # 输出内容开始 gunicorn.service - gunicorn daemon Loaded: loaded (/etc/systemd/system/application-alias.service; disabled; vendor preset: enabled) Active: active (running) since Sun 2021-09-26 17:20:51 CST; 12min ago Main PID: 21784 (gunicorn) Tasks: 8 (limit: 4915) CGroup: /system.slice/gunicorn.service ├─21784 /applicaton-path/venv/bin/python3 /applicaton-path/venv/bin/gunicorn --worker-class gevent --workers 7 --error ├─21812 /applicaton-path/venv/bin/python3 /applicaton-path/venv/bin/gunicorn --worker-class gevent --workers 7 --error ├─21813 /applicaton-path/venv/bin/python3 /applicaton-path/venv/bin/gunicorn --worker-class gevent --workers 7 --error ├─21814 /applicaton-path/venv/bin/python3 /applicaton-path/venv/bin/gunicorn --worker-class gevent --workers 7 --error ├─21815 /applicaton-path/venv/bin/python3 /applicaton-path/venv/bin/gunicorn --worker-class gevent --workers 7 --error ├─21817 /applicaton-path/venv/bin/python3 /applicaton-path/venv/bin/gunicorn --worker-class gevent --workers 7 --error ├─21818 /applicaton-path/venv/bin/python3 /applicaton-path/venv/bin/gunicorn --worker-class gevent --workers 7 --error └─21819 /applicaton-path/venv/bin/python3 /applicaton-path/venv/bin/gunicorn --worker-class gevent --workers 7 --error # 输出内容结束 # 暂停服务 $ sudo systemctl stop application-alias.service # 启动服务 $ sudo systemctl start application-alias.service # 重启服务 $ sudo systemctl restart application-alias.service
3、Systemctl 可以管理其他Java、php 等服务 只要时有服务进程管理都可以用改Systemctl 管理
1 启动Java 服务脚本例如下
[Unit] Description foundation After syslog.target [Service] # 当前用户 User root ExecStart /usr/bin/java -jar /application-alias.jar SuccessExitStatus 143 [Install] WantedBy multi-user.target
What is Systemctl? An In-Depth Overview
