A security context defines privilege and access control settings for a Pod or Container. Security context settings include, but are not limited to:
 Discretionary Access Control: Permission to access an object, like a file, is based on user ID (UID) and group ID (GID).
 Security Enhanced Linux (SELinux): Objects are assigned security labels.
 Running as privileged or unprivileged.
 Linux Capabilities: Give a process some privileges, but not all the privileges of the root user.