Podman设置容器开机自启

利用定时器设置自动任务，如清晨自动开启咖啡机 #生活技巧# #数码产品使用技巧# #智能家居控制方法#

步骤总结：

1.启动一个容器 # podman run -d --name web httpd 2.查看该容器 # podman ps 3.每次都启动新容器方式创建servcie //--new参数，每次启动都删除旧容器，启动一个新容器 # podman generate systemd -n --new -f web 4.查看启动文件 # cat /root/container-web.service 5.将server文件保存在/etc/systemd/system/ # mv /root/container-web.service /etc/systemd/system/ 6.刷新配置文件，让其生效 # systemctl daemon-reload 7.修改selinux # cat config |grep SELINUX=disabled 8.设置容器开机自启，并且现在启动 # systemctl enable --now /etc/systemd/system/container-web.service 9.测试，重启虚拟机 # reboot 10.查看容器是否在运行，并查看container-web.service是否开机自启和运行 # podman ps

1. //启动一个容器 [root@SYL2 ~]# podman run -d --name web httpd WARN[0000] Ignoring global metacopy option, not supported with booted kernel a1e07f4e884a7553aee1ea04bff6813d2440316287f6e7a62b4b7a5a884bad1a [root@SYL2 ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES a1e07f4e884a docker.io/library/httpd:latest httpd-foreground 12 seconds ago Up 12 seconds ago web 2. //每次都启动新容器方式创建servcie //--new参数，每次启动都删除旧容器，启动一个新容器 [root@SYL2 ~]# podman generate systemd -n --new -f web /root/container-web.service [root@SYL2 ~]# cat container-web.service # container-web.service # autogenerated by Podman 4.0.2 # Tue May 10 17:38:39 CST 2022 [Unit] Description=Podman container-web.service Documentation=man:podman-generate-systemd(1) Wants=network-online.target After=network-online.target RequiresMountsFor=%t/containers [Service] Environment=PODMAN_SYSTEMD_UNIT=%n Restart=on-failure TimeoutStopSec=70 ExecStartPre=/bin/rm -f %t/%n.ctr-id ExecStart=/usr/bin/podman run --cidfile=%t/%n.ctr-id --cgroups=no-conmon --rm --sdnotify=conmon --replace -d --name web httpd ExecStop=/usr/bin/podman stop --ignore --cidfile=%t/%n.ctr-id ExecStopPost=/usr/bin/podman rm -f --ignore --cidfile=%t/%n.ctr-id Type=notify NotifyAccess=all [Install] WantedBy=default.target 3. //将server文件保存在/etc/systemd/system/ [root@SYL2 ~]# mv container-web.service /etc/systemd/system/ 4. //刷新配置文件，让其生效 [root@SYL2 ~]# systemctl daemon-reload [root@SYL2 ~]# 5. //修改selinux [root@SYL2 ~]# setenforce 0 [root@SYL2 ~]# cd /etc/selinux/ [root@SYL2 selinux]# ls config semanage.conf targeted [root@SYL2 selinux]# vim config [root@SYL2 selinux]# cat config |grep SELINUX=disabled SELINUX=disabled 6. //设置容器开机自启，并且现在启动 [root@SYL2 ~]# cd /etc/systemd/system [root@SYL2 system]# systemctl enable --now container-web.service Created symlink /etc/systemd/system/default.target.wants/container-web.service → /etc/systemd/system/container-web.service. [root@SYL2 system]# systemctl status container-web.service ● container-web.service - Podman container-web.service Loaded: loaded (/etc/systemd/system/container-web.service; ena> Active: active (running) since Tue 2022-05-10 17:54:20 CST; 25> Docs: man:podman-generate-systemd(1) Process: 246294 ExecStartPre=/bin/rm -f /run/container-web.serv> Main PID: 246464 (conmon) Tasks: 3 (limit: 11175) Memory: 3.1M CGroup: /system.slice/container-web.service ├─246413 /usr/bin/fuse-overlayfs -o lowerdir=/var/lib/> └─246464 /usr/bin/conmon --api-version 1 -c 14105dc4b4> May 10 17:54:18 SYL2 systemd[1]: Starting Podman container-web.se> May 10 17:54:20 SYL2 podman[246295]: a1e07f4e884a7553aee1ea04bff6> May 10 17:54:20 SYL2 podman[246295]: time="2022-05-10T17:54:20+08> May 10 17:54:20 SYL2 systemd[1]: Started Podman container-web.ser> May 10 17:54:20 SYL2 podman[246295]: 14105dc4b4d1b76aa754acf7bc3c> [root@SYL2 system]# 7. //测试，重启虚拟机 [root@SYL2 system]# reboot 8. //查看容器是否在运行，并查看container-web.service是否开机自启和运行 [root@SYL2 ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 4ebc4b868781 docker.io/library/httpd:latest httpd-foreground About a minute ago Up About a minute ago web [root@SYL2 ~]# reboot 连接断开 连接主机... 连接主机成功 Last login: Tue May 10 17:59:50 2022 from 192.168.232.1 [root@SYL2 ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 12340a3083c4 docker.io/library/httpd:latest httpd-foreground 54 seconds ago Up 54 seconds ago web [root@SYL2 ~]# cd /etc/systemd/system [root@SYL2 system]# systemctl status container-web.service ● container-web.service - Podman container-web.service Loaded: loaded (/etc/systemd/system/container-web.service; ena> Active: active (running) since Tue 2022-05-10 18:00:24 CST; 1m> Docs: man:podman-generate-systemd(1) Process: 1116 ExecStartPre=/bin/rm -f /run/container-web.servic> Main PID: 1447 (conmon) Tasks: 3 (limit: 11175) Memory: 73.9M CGroup: /system.slice/container-web.service ├─1330 /usr/bin/fuse-overlayfs -o lowerdir=/var/lib/co> └─1447 /usr/bin/conmon --api-version 1 -c 12340a3083c4> May 10 18:00:24 SYL2 systemd[1]: Starting Podman container-web.se> May 10 18:00:24 SYL2 podman[1121]: time="2022-05-10T18:00:24+08:0> May 10 18:00:24 SYL2 systemd[1]: Started Podman container-web.ser> May 10 18:00:24 SYL2 podman[1121]: 12340a3083c4dfda5fc0124dcbf4e9> [root@SYL2 system]# [root@SYL2 ~]# podman ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 12340a3083c4 docker.io/library/httpd:latest httpd-foreground 7 minutes ago Up 7 minutes ago web [root@SYL2 ~]# podman inspect web|grep -i ipaddr "IPAddress": "10.88.0.2", "IPAddress": "10.88.0.2", [root@SYL2 ~]# curl 10.88.0.2 <html><body><h1>It works!</h1></body></html> [root@SYL2 ~]#

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