Non-root / Default Security Profiles

[dtrudg]

Describe the solution you'd like
SingularityCE can apply security restrictions, such as selinux rules, seccomp filters via a --security flag. However, this only works for root. Since SingularityCE focuse on non-root execution, it would be useful for optional/mandatory profiles to be applied to container runs for non-root users. This would allow security restrictions beyond the usual POSIX permissions to be mandated for container execution. Consider:

• SElinux
• Apparmor
• Seccomp