In this episode, we cover the following topics:
- We review virtual machines (full virtualization) and their benefits and tradeoffs.
- We then revisit containers (OS-level virtualization) and briefly recap how they use OS kernel features to enable virtualization.
- Containers provide great performance and resource efficiency, but at the cost of losing strong isolation. Can we have the performance and efficiency benefits of containers but with the strong isolation of VMs? There are some promising technologies that aim to combine the best of both VM and container worlds: microVMs, unikernels and container sandboxes.
- What are microVMs?
- What are unikernels?
- What are container sandboxes?
- AWS Firecracker is one of the most talked about microVMs. We discuss what it is, and the key benefits of using Firecracker.
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