7月 07 191612 rock-5b dockerd11789 time=2023-07-07T191612294873351+0800 level=debug msg=daemon configured with a 15 seconds minimum shutdown timeout7月 07 191612 rock-5b dockerd11789 time=2023-07-07T191

The Docker service failed to start due to an error initializing the network controller. Specifically, there was an issue obtaining a controller instance, which resulted in a failure to create the NAT chain DOCKER. This error was caused by an unsuccessful execution of the iptables command with the parameters "-t nat -N DOCKER". The exit status of the iptables command was 4, indicating a failure. As a result, the main process of the docker.service exited with a status of 1/FAILURE.