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567: So Long sudo
LINUX Unplugged
Exploring System Full OS Containers and VM Spawn
System D N -spawn is designed for running full OS containers, enabling users to run the entire system alongside userland and System D rather than just single applications like in Docker. It allows for creating duplicate environments with specific application compatibility requirements using the same host kernel. VM spawn, on the other hand, has a similar interface to N -spawn but spins up virtual machines on demand for tasks like software testing, with support for credentials, SD notify, TPM, secure boot, and more. VM spawn has become so efficient that System D's test suite is transitioning to using it. The seamless transition between N -spawn and VM spawn provides flexibility in running lightweight containerization or virtual machines based on trust levels and kernel requirements. System D's inclusion of both mechanisms offers users the versatility to choose the appropriate environment for various applications, making it easier to manage and test backups or applications in different settings.
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