What are the best practices for Docker container permission management?

Docker container permission management involves user permissions and container capabilities. By default, containers run as the root user, which poses security risks. Best practices: 1) use the USER instruction in Dockerfile to switch to a non-root user; 2) use the --user parameter to specify the running user; 3) use --cap-drop to remove unnecessary Linux capabilities; 4) use --cap-add to only add necessary capabilities; 5) use the --read-only flag to make the container file system read-only; 6) use --security-opt no-new-privileges to prevent privilege escalation; 7) use AppArmor or SELinux profiles for enhanced security. For operations requiring root privileges, use sudo or capabilities for fine-grained control.