http://imil.net/blog/tags/virtualization/ Recent content in Virtualization on iMil.net Hugo en-us Thu, 18 Jun 2020 06:21:35 +0200 http://imil.net/blog/posts/2020/fakecracker-netbsd-as-a-function-based-microvm/ Thu, 18 Jun 2020 06:21:35 +0200 http://imil.net/blog/posts/2020/fakecracker-netbsd-as-a-function-based-microvm/ <p>In November 2018 <a href="https://aws.amazon.com/blogs/opensource/firecracker-open-source-secure-fast-microvm-serverless/">AWS published an Open Source tool called Firecracker</a>, mostly a virtual machine monitor relying on <a href="https://www.linux-kvm.org/page/Main_Page">KVM</a>, a small sized Linux kernel, and a stripped down version of <a href="https://www.qemu.org/">Qemu</a>. What baffled me was the speed at which the virtual machine would fire up and run the service. The whole process is to be compared to a <em>container</em>, but safer, as it does not share the kernel nor any resource, it is a separate and dedicated virtual machine.<br> If you want to learn more on <em>Firecracker</em>&rsquo;s internals, <a href="https://unixism.net/2019/10/how-aws-firecracker-works-a-deep-dive/">here&rsquo;s a very well put article</a>.</p>