linux下服务的定义在 /lib/systemd/system 中，我们只需要编写符合标准规范的service脚本文件，放在这个文件夹下面即可。

服务启动相关

编写服务设置启动

systemctl list-unit-files
enabled：开机启动
disabled：开机不启动

[ sysadmin:~ ]# systemctl list-unit-files
UNIT FILE                                                                     STATE   
proc-sys-fs-binfmt_misc.automount                                             static  
dev-hugepages.mount                                                           static  
dev-mqueue.mount                                                              static  
proc-fs-nfsd.mount                                                            static  
proc-sys-fs-binfmt_misc.mount                                                 static  
run-vmblock\x2dfuse.mount                                                     disabled
sys-fs-fuse-connections.mount                                                 static  
sys-kernel-config.mount                                                       static  
sys-kernel-debug.mount                                                        static  
tmp.mount                                                                     disabled
var-lib-nfs-rpc_pipefs.mount                                                  static  
brandbot.path                                                                 disabled
cups.path                                                                     enabled 
systemd-ask-password-console.path                                             static  
systemd-ask-password-plymouth.path                                            static  
systemd-ask-password-wall.path                                                static  
docker-1558df48f7364a8b70979495e804e434834f7624253ca6651eabb9d0af30b221.scope static  

设置docker服务开机启动
systemctl enable docker
开机不启动
systemctl disable docker

rc.local中设置开机启动

参考

Linux下服务的创建

linux 7服务取消开机自启,centos7中设置服务开机自启的两种方法，欢迎补充