updated notes

src/rhcsa.md

@@ -999,3 +999,33 @@ podman volume ls
 ### run the container with the volume
 podman run --name mywebserver -d -p 8080:80 -v myvolume:/var/www/html:Z nginx
 ```
+
+### Scheduling Containerised Services with Systemd
+> Note: You can use systemd to schedule containerised services.
+>> configure the service to run under a user's account even when the user is not logged into the system
+```bash
+### enable linger for the user
+sudo loginctl enable-linger user1
+
+### create a systemd service
+mkdir -p /home/user1/.config/systemd/user
+podman pull nginx
+
+### run the container
+podman run -d --name mynginx -p 8080:80 nginx
+
+### cd into the user's home directory
+cd /home/user1/.config/systemd/user
+podman generate systemd --name mynginx --files --new # generate the systemd service file
+
+### ensure the service file is wantedby default.target 
+[Install]
+WantedBy=default.target
+
+systemctl --user daemon-reload # reload the systemd user daemon
+systemctl --user enable container-mynginx.service # enable the mynginx service
+
+systemctl --user status container-mynginx.service # check the status of the mynginx service
+
+### after rebooting the system, the service will start automatically
+```