how to slove that Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?

[ZhenWusi]

sudo docker build -t tf_colmap:latest .
ERROR: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
root@autodl-container-f1da119ffa-8feb8b24:/autodl-tmp/LLFF# sudo iptables -L
iptables v1.8.4 (legacy): can't initialize iptables table `filter': Permission denied (you must be root)
Perhaps iptables or your kernel needs to be upgraded.
root@autodl-container-f1da119ffa-8feb8b24:/autodl-tmp/LLFF# sudo systemctl status docker
System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down