Will the container continue to work after the host system reboots?

By default, Docker containers do not continue running after the host system is rebooted; they stop along with it. To have a container automatically start after a reboot, you need to set a restart policy.

For example, when running a container, you can specify the parameter:

docker run --restart unless-stopped ...

Possible values for --restart:

• no — do not restart (default)
• on-failure — restart on errors
• always — always restart the container
• unless-stopped — restart unless the container is manually stopped

If a restart policy is set, Docker will automatically start containers with the specified setting after a host reboot.